CRM/Core/DAO.php

   1 <?php
   2 /*
   3  +--------------------------------------------------------------------+
   4  | Copyright CiviCRM LLC. All rights reserved.                        |
   5  |                                                                    |
   6  | This work is published under the GNU AGPLv3 license with some      |
   7  | permitted exceptions and without any warranty. For full license    |
   8  | and copyright information, see https://civicrm.org/licensing       |
   9  +--------------------------------------------------------------------+
  10  */
  11
  12 /**
  13  * Base Database Access Object class.
  14  *
  15  * All DAO classes should inherit from this class.
  16  *
  17  * @package CRM
  18  * @copyright CiviCRM LLC https://civicrm.org/licensing
  19  */
  20
  21 if (!defined('DB_DSN_MODE')) {
  22   define('DB_DSN_MODE', 'auto');
  23 }
  24
  25 require_once 'PEAR.php';
  26 require_once 'DB/DataObject.php';
  27
  28 require_once 'CRM/Core/I18n.php';
  29
  30 /**
  31  * Class CRM_Core_DAO
  32  */
  33 class CRM_Core_DAO extends DB_DataObject {
  34
  35   /**
  36    * Primary key field(s).
  37    *
  38    * @var string[]
  39    */
  40   public static $_primaryKey = ['id'];
  41
  42   /**
  43    * How many times has this instance been cloned.
  44    *
  45    * @var int
  46    */
  47   protected $resultCopies = 0;
  48
  49   /**
  50    * @var null
  51    * @deprecated
  52    */
  53   public static $_nullObject = NULL;
  54
  55   /**
  56    * Icon associated with this entity.
  57    *
  58    * @var string
  59    */
  60   public static $_icon = NULL;
  61
  62   /**
  63    * Field to show when displaying a record.
  64    *
  65    * @var string
  66    */
  67   public static $_labelField = NULL;
  68
  69   /**
  70    * @var array
  71    * @deprecated
  72    */
  73   public static $_nullArray = [];
  74
  75   public static $_dbColumnValueCache = NULL;
  76   const NOT_NULL = 1, IS_NULL = 2,
  77     DB_DAO_NOTNULL = 128,
  78     VALUE_SEPARATOR = "\ 1",
  79     BULK_INSERT_COUNT = 200,
  80     BULK_INSERT_HIGH_COUNT = 200,
  81     QUERY_FORMAT_WILDCARD = 1,
  82     QUERY_FORMAT_NO_QUOTES = 2,
  83
  84     /**
  85      * Serialized string separated by and bookended with VALUE_SEPARATOR
  86      */
  87     SERIALIZE_SEPARATOR_BOOKEND = 1,
  88     /**
  89      * @deprecated format separated by VALUE_SEPARATOR
  90      */
  91     SERIALIZE_SEPARATOR_TRIMMED = 2,
  92     /**
  93      * Recommended serialization format
  94      */
  95     SERIALIZE_JSON = 3,
  96     /**
  97      * @deprecated format using php serialize()
  98      */
  99     SERIALIZE_PHP = 4,
 100     /**
 101      * Comma separated string, no quotes, no spaces
 102      */
 103     SERIALIZE_COMMA = 5;
 104
 105   /**
 106    * Define entities that shouldn't be created or deleted when creating/ deleting
 107    * test objects - this prevents world regions, countries etc from being added / deleted
 108    * @var array
 109    */
 110   public static $_testEntitiesToSkip = [];
 111   /**
 112    * The factory class for this application.
 113    * @var object
 114    */
 115   public static $_factory = NULL;
 116
 117   /**
 118    * https://issues.civicrm.org/jira/browse/CRM-17748
 119    * internal variable for DAO to hold per-query settings
 120    * @var array
 121    */
 122   protected $_options = [];
 123
 124   /**
 125    * Class constructor.
 126    *
 127    * @return static
 128    */
 129   public function __construct() {
 130     $this->initialize();
 131     $this->__table = $this->getTableName();
 132   }
 133
 134   /**
 135    * Returns localized title of this entity.
 136    *
 137    * @return string
 138    */
 139   public static function getEntityTitle() {
 140     $className = static::class;
 141     CRM_Core_Error::deprecatedWarning("$className needs to be regenerated. Missing getEntityTitle method.");
 142     return CRM_Core_DAO_AllCoreTables::getBriefName($className);
 143   }
 144
 145   /**
 146    * Returns user-friendly description of this entity.
 147    *
 148    * @return string|null
 149    */
 150   public static function getEntityDescription() {
 151     return NULL;
 152   }
 153
 154   public function __clone() {
 155     if (!empty($this->_DB_resultid)) {
 156       $this->resultCopies++;
 157     }
 158   }
 159
 160   /**
 161    * Class destructor.
 162    */
 163   public function __destruct() {
 164     if ($this->resultCopies === 0) {
 165       $this->free();
 166     }
 167     $this->resultCopies--;
 168   }
 169
 170   /**
 171    * Returns the name of this table
 172    *
 173    * @return string
 174    */
 175   public static function getTableName() {
 176     return self::getLocaleTableName(static::$_tableName ?? NULL);
 177   }
 178
 179   /**
 180    * Returns if this table needs to be logged
 181    *
 182    * @return bool
 183    */
 184   public function getLog() {
 185     return static::$_log ?? FALSE;
 186   }
 187
 188   /**
 189    * Initialize the DAO object.
 190    *
 191    * @param string $dsn
 192    *   The database connection string.
 193    */
 194   public static function init($dsn) {
 195     Civi::$statics[__CLASS__]['init'] = 1;
 196     $options = &PEAR::getStaticProperty('DB_DataObject', 'options');
 197     $dsn = CRM_Utils_SQL::autoSwitchDSN($dsn);
 198     $options['database'] = $dsn;
 199     $options['quote_identifiers'] = TRUE;
 200     if (CRM_Utils_SQL::isSSLDSN($dsn)) {
 201       // There are two different options arrays.
 202       $other_options = &PEAR::getStaticProperty('DB', 'options');
 203       $other_options['ssl'] = TRUE;
 204     }
 205     if (defined('CIVICRM_DAO_DEBUG')) {
 206       self::DebugLevel(CIVICRM_DAO_DEBUG);
 207     }
 208     $factory = new CRM_Contact_DAO_Factory();
 209     CRM_Core_DAO::setFactory($factory);
 210     CRM_Core_DAO::executeQuery('SET NAMES utf8mb4');
 211     CRM_Core_DAO::executeQuery('SET @uniqueID = %1', [1 => [CRM_Utils_Request::id(), 'String']]);
 212   }
 213
 214   /**
 215    * @return DB_common
 216    */
 217   public static function getConnection() {
 218     global $_DB_DATAOBJECT;
 219     $dao = new CRM_Core_DAO();
 220     return $_DB_DATAOBJECT['CONNECTIONS'][$dao->_database_dsn_md5];
 221   }
 222
 223   /**
 224    * Disables usage of the ONLY_FULL_GROUP_BY Mode if necessary
 225    */
 226   public static function disableFullGroupByMode() {
 227     $currentModes = CRM_Utils_SQL::getSqlModes();
 228     if (in_array('ONLY_FULL_GROUP_BY', $currentModes) && CRM_Utils_SQL::isGroupByModeInDefault()) {
 229       $key = array_search('ONLY_FULL_GROUP_BY', $currentModes);
 230       unset($currentModes[$key]);
 231       CRM_Core_DAO::executeQuery("SET SESSION sql_mode = %1", [1 => [implode(',', $currentModes), 'String']]);
 232     }
 233   }
 234
 235   /**
 236    * Re-enables ONLY_FULL_GROUP_BY sql_mode as necessary..
 237    */
 238   public static function reenableFullGroupByMode() {
 239     $currentModes = CRM_Utils_SQL::getSqlModes();
 240     if (!in_array('ONLY_FULL_GROUP_BY', $currentModes) && CRM_Utils_SQL::isGroupByModeInDefault()) {
 241       $currentModes[] = 'ONLY_FULL_GROUP_BY';
 242       CRM_Core_DAO::executeQuery("SET SESSION sql_mode = %1", [1 => [implode(',', $currentModes), 'String']]);
 243     }
 244   }
 245
 246   /**
 247    * @param string $fieldName
 248    * @param $fieldDef
 249    * @param array $params
 250    */
 251   protected function assignTestFK($fieldName, $fieldDef, $params) {
 252     $required = $fieldDef['required'] ?? NULL;
 253     $FKClassName = $fieldDef['FKClassName'] ?? NULL;
 254     $dbName = $fieldDef['name'];
 255     $daoName = str_replace('_BAO_', '_DAO_', get_class($this));
 256
 257     // skip the FK if it is not required
 258     // if it's contact id we should create even if not required
 259     // we'll have a go @ fetching first though
 260     // we WILL create campaigns though for so tests with a campaign pseudoconstant will complete
 261     if ($FKClassName === 'CRM_Campaign_DAO_Campaign' && $daoName != $FKClassName) {
 262       $required = TRUE;
 263     }
 264     if (!$required && $dbName != 'contact_id') {
 265       $fkDAO = new $FKClassName();
 266       if ($fkDAO->find(TRUE)) {
 267         $this->$dbName = $fkDAO->id;
 268       }
 269     }
 270
 271     elseif (in_array($FKClassName, CRM_Core_DAO::$_testEntitiesToSkip)) {
 272       $depObject = new $FKClassName();
 273       $depObject->find(TRUE);
 274       $this->$dbName = $depObject->id;
 275     }
 276     elseif ($daoName == 'CRM_Member_DAO_MembershipType' && $fieldName == 'member_of_contact_id') {
 277       // FIXME: the fields() metadata is not specific enough
 278       $depObject = CRM_Core_DAO::createTestObject($FKClassName, ['contact_type' => 'Organization']);
 279       $this->$dbName = $depObject->id;
 280     }
 281     else {
 282       //if it is required we need to generate the dependency object first
 283       $depObject = CRM_Core_DAO::createTestObject($FKClassName, CRM_Utils_Array::value($dbName, $params, 1));
 284       $this->$dbName = $depObject->id;
 285     }
 286   }
 287
 288   /**
 289    * Generate and assign an arbitrary value to a field of a test object.
 290    *
 291    * @param string $fieldName
 292    * @param array $fieldDef
 293    * @param int $counter
 294    *   The globally-unique ID of the test object.
 295    *
 296    * @throws \CRM_Core_Exception
 297    */
 298   protected function assignTestValue($fieldName, &$fieldDef, $counter) {
 299     $dbName = $fieldDef['name'];
 300     $daoName = get_class($this);
 301     $handled = FALSE;
 302
 303     if (in_array($dbName, ['contact_sub_type', 'email_greeting_id', 'postal_greeting_id', 'addressee_id'], TRUE)) {
 304       //coming up with a rule to set these is too complex - skip
 305       return;
 306     }
 307
 308     // Pick an option value if needed
 309     if (!$handled && $fieldDef['type'] !== CRM_Utils_Type::T_BOOLEAN) {
 310       $options = $daoName::buildOptions($dbName, 'create');
 311       if ($options) {
 312         $this->$dbName = key($options);
 313         $handled = TRUE;
 314       }
 315     }
 316
 317     if (!$handled) {
 318       switch ($fieldDef['type']) {
 319         case CRM_Utils_Type::T_INT:
 320         case CRM_Utils_Type::T_FLOAT:
 321         case CRM_Utils_Type::T_MONEY:
 322           if (isset($fieldDef['precision'])) {
 323             // $object->$dbName = CRM_Utils_Number::createRandomDecimal($value['precision']);
 324             $this->$dbName = CRM_Utils_Number::createTruncatedDecimal($counter, $fieldDef['precision']);
 325           }
 326           else {
 327             $this->$dbName = $counter;
 328           }
 329           break;
 330
 331         case CRM_Utils_Type::T_BOOLEAN:
 332           if (isset($fieldDef['default'])) {
 333             $this->$dbName = $fieldDef['default'];
 334           }
 335           elseif ($fieldDef['name'] == 'is_deleted' || $fieldDef['name'] == 'is_test') {
 336             $this->$dbName = 0;
 337           }
 338           else {
 339             $this->$dbName = 1;
 340           }
 341           break;
 342
 343         case CRM_Utils_Type::T_DATE:
 344         case CRM_Utils_Type::T_DATE + CRM_Utils_Type::T_TIME:
 345           $this->$dbName = '19700101';
 346           if ($dbName == 'end_date') {
 347             // put this in the future
 348             $this->$dbName = '20200101';
 349           }
 350           break;
 351
 352         case CRM_Utils_Type::T_TIMESTAMP:
 353           $this->$dbName = '19700201000000';
 354           break;
 355
 356         case CRM_Utils_Type::T_TIME:
 357           throw new CRM_Core_Exception('T_TIME shouldn\'t be used.');
 358
 359         case CRM_Utils_Type::T_CCNUM:
 360           $this->$dbName = '4111 1111 1111 1111';
 361           break;
 362
 363         case CRM_Utils_Type::T_URL:
 364           $this->$dbName = 'http://www.civicrm.org';
 365           break;
 366
 367         case CRM_Utils_Type::T_STRING:
 368         case CRM_Utils_Type::T_BLOB:
 369         case CRM_Utils_Type::T_MEDIUMBLOB:
 370         case CRM_Utils_Type::T_TEXT:
 371         case CRM_Utils_Type::T_LONGTEXT:
 372         case CRM_Utils_Type::T_EMAIL:
 373         default:
 374           // WAS: if (isset($value['enumValues'])) {
 375           // TODO: see if this works with all pseudoconstants
 376           if (isset($fieldDef['pseudoconstant'], $fieldDef['pseudoconstant']['callback'])) {
 377             if (isset($fieldDef['default'])) {
 378               $this->$dbName = $fieldDef['default'];
 379             }
 380             else {
 381               $options = CRM_Core_PseudoConstant::get($daoName, $fieldName);
 382               if (is_array($options)) {
 383                 $this->$dbName = $options[0];
 384               }
 385               else {
 386                 $defaultValues = explode(',', $options);
 387                 $this->$dbName = $defaultValues[0];
 388               }
 389             }
 390           }
 391           else {
 392             $this->$dbName = $dbName . '_' . $counter;
 393             $maxlength = $fieldDef['maxlength'] ?? NULL;
 394             if ($maxlength > 0 && strlen($this->$dbName) > $maxlength) {
 395               $this->$dbName = substr($this->$dbName, 0, $fieldDef['maxlength']);
 396             }
 397           }
 398       }
 399     }
 400   }
 401
 402   /**
 403    * Reset the DAO object.
 404    *
 405    * DAO is kinda crappy in that there is an unwritten rule of one query per DAO.
 406    *
 407    * We attempt to get around this crappy restriction by resetting some of DAO's internal fields. Use this with caution
 408    */
 409   public function reset() {
 410
 411     foreach (array_keys($this->table()) as $field) {
 412       unset($this->$field);
 413     }
 414
 415     /**
 416      * reset the various DB_DAO structures manually
 417      */
 418     $this->_query = [];
 419     $this->whereAdd();
 420     $this->selectAdd();
 421     $this->joinAdd();
 422   }
 423
 424   /**
 425    * @param string $tableName
 426    *
 427    * @return string
 428    */
 429   public static function getLocaleTableName($tableName) {
 430     global $dbLocale;
 431     if ($dbLocale) {
 432       $tables = CRM_Core_I18n_Schema::schemaStructureTables();
 433       if (in_array($tableName, $tables)) {
 434         return $tableName . $dbLocale;
 435       }
 436     }
 437     return $tableName;
 438   }
 439
 440   /**
 441    * Execute a query by the current DAO, localizing it along the way (if needed).
 442    *
 443    * @param string $query
 444    *   The SQL query for execution.
 445    * @param bool $i18nRewrite
 446    *   Whether to rewrite the query.
 447    *
 448    * @return object
 449    *   the current DAO object after the query execution
 450    */
 451   public function query($query, $i18nRewrite = TRUE) {
 452     // rewrite queries that should use $dbLocale-based views for multi-language installs
 453     global $dbLocale, $_DB_DATAOBJECT;
 454
 455     if (empty($_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5])) {
 456       // Will force connection to be populated per CRM-20541.
 457       new CRM_Core_DAO();
 458     }
 459
 460     $conn = &$_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5];
 461     $orig_options = $conn->options;
 462     $this->_setDBOptions($this->_options);
 463
 464     if ($i18nRewrite and $dbLocale) {
 465       $query = CRM_Core_I18n_Schema::rewriteQuery($query);
 466     }
 467
 468     $ret = parent::query($query);
 469
 470     $this->_setDBOptions($orig_options);
 471     return $ret;
 472   }
 473
 474   /**
 475    * Static function to set the factory instance for this class.
 476    *
 477    * @param object $factory
 478    *   The factory application object.
 479    */
 480   public static function setFactory(&$factory) {
 481     self::$_factory = &$factory;
 482   }
 483
 484   /**
 485    * Factory method to instantiate a new object from a table name.
 486    *
 487    * @param string $table
 488    * @return \DataObject|\PEAR_Error
 489    */
 490   public function factory($table = '') {
 491     if (!isset(self::$_factory)) {
 492       return parent::factory($table);
 493     }
 494
 495     return self::$_factory->create($table);
 496   }
 497
 498   /**
 499    * Initialization for all DAO objects. Since we access DB_DO programatically
 500    * we need to set the links manually.
 501    */
 502   public function initialize() {
 503     $this->_connect();
 504     if (empty(Civi::$statics[__CLASS__]['init'])) {
 505       // CRM_Core_DAO::init() must be called before CRM_Core_DAO->initialize().
 506       // This occurs very early in bootstrap - error handlers may not be wired up.
 507       echo "Inconsistent system initialization sequence. Premature access of (" . get_class($this) . ")";
 508       CRM_Utils_System::civiExit();
 509     }
 510   }
 511
 512   /**
 513    * Defines the default key as 'id'.
 514    *
 515    * @return array
 516    */
 517   public function keys() {
 518     static $keys;
 519     if (!isset($keys)) {
 520       $keys = ['id'];
 521     }
 522     return $keys;
 523   }
 524
 525   /**
 526    * Tells DB_DataObject which keys use autoincrement.
 527    * 'id' is autoincrementing by default.
 528    *
 529    *
 530    * @return array
 531    */
 532   public function sequenceKey() {
 533     static $sequenceKeys;
 534     if (!isset($sequenceKeys)) {
 535       $sequenceKeys = ['id', TRUE];
 536     }
 537     return $sequenceKeys;
 538   }
 539
 540   /**
 541    * Returns list of FK relationships.
 542    *
 543    * @return CRM_Core_Reference_Basic[]
 544    */
 545   public static function getReferenceColumns() {
 546     if (!isset(Civi::$statics[static::class]['links'])) {
 547       Civi::$statics[static::class]['links'] = static::createReferenceColumns(static::class);
 548       CRM_Core_DAO_AllCoreTables::invoke(static::class, 'links_callback', Civi::$statics[static::class]['links']);
 549     }
 550     return Civi::$statics[static::class]['links'];
 551   }
 552
 553   /**
 554    * Returns all the column names of this table.
 555    *
 556    *
 557    * @return array
 558    */
 559   public static function &fields() {
 560     $result = NULL;
 561     return $result;
 562   }
 563
 564   /**
 565    * Returns all usable fields, indexed by name.
 566    *
 567    * This function differs from fields() in that it indexes by name rather than unique_name.
 568    *
 569    * It excludes fields not added yet by pending upgrades.
 570    * This avoids problems with trying to SELECT a field that exists in code but has not yet been added to the db.
 571    *
 572    * @param bool $checkPermissions
 573    *   Filter by field permissions.
 574    * @return array
 575    */
 576   public static function getSupportedFields($checkPermissions = FALSE) {
 577     $fields = array_column((array) static::fields(), NULL, 'name');
 578
 579     // Exclude fields yet not added by pending upgrades
 580     $dbVer = \CRM_Core_BAO_Domain::version();
 581     $daoExt = defined(static::class . '::EXT') ? constant(static::class . '::EXT') : NULL;
 582     if ($fields && $daoExt === 'civicrm' && version_compare($dbVer, \CRM_Utils_System::version()) < 0) {
 583       $fields = array_filter($fields, function($field) use ($dbVer) {
 584         $add = $field['add'] ?? '1.0.0';
 585         if (substr_count($add, '.') < 2) {
 586           $add .= '.alpha1';
 587         }
 588         return version_compare($dbVer, $add, '>=');
 589       });
 590     }
 591
 592     // Exclude fields the user does not have permission for
 593     if ($checkPermissions) {
 594       $fields = array_filter($fields, function($field) {
 595         return empty($field['permission']) || CRM_Core_Permission::check($field['permission']);
 596       });
 597     }
 598
 599     return $fields;
 600   }
 601
 602   /**
 603    * Get/set an associative array of table columns
 604    *
 605    * @return array
 606    *   (associative)
 607    */
 608   public function table() {
 609     $fields = $this->fields();
 610
 611     $table = [];
 612     if ($fields) {
 613       foreach ($fields as $name => $value) {
 614         $table[$value['name']] = $value['type'];
 615         if (!empty($value['required'])) {
 616           $table[$value['name']] += self::DB_DAO_NOTNULL;
 617         }
 618       }
 619     }
 620
 621     return $table;
 622   }
 623
 624   /**
 625    * Save DAO object.
 626    *
 627    * @param bool $hook
 628    *
 629    * @return CRM_Core_DAO
 630    */
 631   public function save($hook = TRUE) {
 632     $eventID = uniqid();
 633     if (!empty($this->id)) {
 634       if ($hook) {
 635         $preEvent = new \Civi\Core\DAO\Event\PreUpdate($this);
 636         $preEvent->eventID = $eventID;
 637         \Civi::dispatcher()->dispatch("civi.dao.preUpdate", $preEvent);
 638       }
 639
 640       $result = $this->update();
 641
 642       if ($hook) {
 643         $event = new \Civi\Core\DAO\Event\PostUpdate($this, $result);
 644         $event->eventID = $eventID;
 645         \Civi::dispatcher()->dispatch("civi.dao.postUpdate", $event);
 646       }
 647       $this->clearDbColumnValueCache();
 648     }
 649     else {
 650       if ($hook) {
 651         $preEvent = new \Civi\Core\DAO\Event\PreUpdate($this);
 652         $preEvent->eventID = $eventID;
 653         \Civi::dispatcher()->dispatch("civi.dao.preInsert", $preEvent);
 654       }
 655
 656       $result = $this->insert();
 657
 658       if ($hook) {
 659         $event = new \Civi\Core\DAO\Event\PostUpdate($this, $result);
 660         $event->eventID = $eventID;
 661         \Civi::dispatcher()->dispatch("civi.dao.postInsert", $event);
 662       }
 663     }
 664     $this->free();
 665
 666     if ($hook) {
 667       CRM_Utils_Hook::postSave($this);
 668     }
 669
 670     return $this;
 671   }
 672
 673   /**
 674    * Deletes items from table which match current objects variables.
 675    *
 676    * Returns the true on success
 677    *
 678    * for example
 679    *
 680    * Designed to be extended
 681    *
 682    * $object = new mytable();
 683    * $object->ID=123;
 684    * echo $object->delete(); // builds a conditon
 685    *
 686    * $object = new mytable();
 687    * $object->whereAdd('age > 12');
 688    * $object->limit(1);
 689    * $object->orderBy('age DESC');
 690    * $object->delete(true); // dont use object vars, use the conditions, limit and order.
 691    *
 692    * @param bool $useWhere (optional) If DB_DATAOBJECT_WHEREADD_ONLY is passed in then
 693    *             we will build the condition only using the whereAdd's.  Default is to
 694    *             build the condition only using the object parameters.
 695    *
 696    * @return int|false
 697    *   Int (No. of rows affected) on success, false on failure, 0 on no data affected
 698    */
 699   public function delete($useWhere = FALSE) {
 700     $preEvent = new \Civi\Core\DAO\Event\PreDelete($this);
 701     \Civi::dispatcher()->dispatch("civi.dao.preDelete", $preEvent);
 702
 703     $result = parent::delete($useWhere);
 704
 705     $event = new \Civi\Core\DAO\Event\PostDelete($this, $result);
 706     \Civi::dispatcher()->dispatch("civi.dao.postDelete", $event);
 707     $this->free();
 708
 709     $this->clearDbColumnValueCache();
 710
 711     return $result;
 712   }
 713
 714   /**
 715    * @param bool $created
 716    */
 717   public function log($created = FALSE) {
 718     static $cid = NULL;
 719
 720     if (!$this->getLog()) {
 721       return;
 722     }
 723
 724     if (!$cid) {
 725       $session = CRM_Core_Session::singleton();
 726       $cid = $session->get('userID');
 727     }
 728
 729     // return is we dont have handle to FK
 730     if (!$cid) {
 731       return;
 732     }
 733
 734     $dao = new CRM_Core_DAO_Log();
 735     $dao->entity_table = $this->getTableName();
 736     $dao->entity_id = $this->id;
 737     $dao->modified_id = $cid;
 738     $dao->modified_date = date("YmdHis");
 739     $dao->insert();
 740   }
 741
 742   /**
 743    * Given an associative array of name/value pairs, extract all the values
 744    * that belong to this object and initialize the object with said values
 745    *
 746    * @param array $params
 747    *   Array of name/value pairs to save.
 748    *
 749    * @return bool
 750    *   Did we copy all null values into the object
 751    */
 752   public function copyValues($params) {
 753     $allNull = TRUE;
 754     foreach ($this->fields() as $uniqueName => $field) {
 755       $dbName = $field['name'];
 756       if (array_key_exists($dbName, $params)) {
 757         $value = $params[$dbName];
 758         $exists = TRUE;
 759       }
 760       elseif (array_key_exists($uniqueName, $params)) {
 761         $value = $params[$uniqueName];
 762         $exists = TRUE;
 763       }
 764       else {
 765         $exists = FALSE;
 766       }
 767
 768       // if there is no value then make the variable NULL
 769       if ($exists) {
 770         if ($value === '') {
 771           $this->$dbName = 'null';
 772         }
 773         elseif (is_array($value) && !empty($field['serialize'])) {
 774           $this->$dbName = CRM_Core_DAO::serializeField($value, $field['serialize']);
 775           $allNull = FALSE;
 776         }
 777         else {
 778           $maxLength = $field['maxlength'] ?? NULL;
 779           if (!is_array($value) && $maxLength && mb_strlen($value) > $maxLength && empty($field['pseudoconstant'])) {
 780             // No ts() since this is a sysadmin-y string not seen by general users.
 781             Civi::log()->warning('A string for field {dbName} has been truncated. The original string was {value}.', ['dbName' => $dbName, 'value' => $value]);
 782             // The string is too long - what to do what to do? Well losing data is generally bad so let's truncate
 783             $value = CRM_Utils_String::ellipsify($value, $maxLength);
 784           }
 785           $this->$dbName = $value;
 786           $allNull = FALSE;
 787         }
 788       }
 789     }
 790     return $allNull;
 791   }
 792
 793   /**
 794    * Store all the values from this object in an associative array
 795    * this is a destructive store, calling function is responsible
 796    * for keeping sanity of id's.
 797    *
 798    * @param object $object
 799    *   The object that we are extracting data from.
 800    * @param array $values
 801    *   (reference ) associative array of name/value pairs.
 802    */
 803   public static function storeValues(&$object, &$values) {
 804     $fields = $object->fields();
 805     foreach ($fields as $name => $value) {
 806       $dbName = $value['name'];
 807       if (isset($object->$dbName) && $object->$dbName !== 'null') {
 808         $values[$dbName] = $object->$dbName;
 809         if ($name != $dbName) {
 810           $values[$name] = $object->$dbName;
 811         }
 812       }
 813     }
 814   }
 815
 816   /**
 817    * Create an attribute for this specific field. We only do this for strings and text
 818    *
 819    * @param array $field
 820    *   The field under task.
 821    *
 822    * @return array|null
 823    *   the attributes for the object
 824    */
 825   public static function makeAttribute($field) {
 826     if ($field) {
 827       if (CRM_Utils_Array::value('type', $field) == CRM_Utils_Type::T_STRING) {
 828         $maxLength = $field['maxlength'] ?? NULL;
 829         $size = $field['size'] ?? NULL;
 830         if ($maxLength || $size) {
 831           $attributes = [];
 832           if ($maxLength) {
 833             $attributes['maxlength'] = $maxLength;
 834           }
 835           if ($size) {
 836             $attributes['size'] = $size;
 837           }
 838           return $attributes;
 839         }
 840       }
 841       elseif (CRM_Utils_Array::value('type', $field) == CRM_Utils_Type::T_TEXT) {
 842         $rows = $field['rows'] ?? NULL;
 843         if (!isset($rows)) {
 844           $rows = 2;
 845         }
 846         $cols = $field['cols'] ?? NULL;
 847         if (!isset($cols)) {
 848           $cols = 80;
 849         }
 850
 851         $attributes = [];
 852         $attributes['rows'] = $rows;
 853         $attributes['cols'] = $cols;
 854         return $attributes;
 855       }
 856       elseif (CRM_Utils_Array::value('type', $field) == CRM_Utils_Type::T_INT || CRM_Utils_Array::value('type', $field) == CRM_Utils_Type::T_FLOAT || CRM_Utils_Array::value('type', $field) == CRM_Utils_Type::T_MONEY) {
 857         $attributes['size'] = 6;
 858         $attributes['maxlength'] = 14;
 859         return $attributes;
 860       }
 861     }
 862     return NULL;
 863   }
 864
 865   /**
 866    * Get the size and maxLength attributes for this text field.
 867    * (or for all text fields) in the DAO object.
 868    *
 869    * @param string $class
 870    *   Name of DAO class.
 871    * @param string $fieldName
 872    *   Field that i'm interested in or null if.
 873    *                          you want the attributes for all DAO text fields
 874    *
 875    * @return array
 876    *   assoc array of name => attribute pairs
 877    */
 878   public static function getAttribute($class, $fieldName = NULL) {
 879     $object = new $class();
 880     $fields = $object->fields();
 881     if ($fieldName != NULL) {
 882       $field = $fields[$fieldName] ?? NULL;
 883       return self::makeAttribute($field);
 884     }
 885     else {
 886       $attributes = [];
 887       foreach ($fields as $name => $field) {
 888         $attribute = self::makeAttribute($field);
 889         if ($attribute) {
 890           $attributes[$name] = $attribute;
 891         }
 892       }
 893
 894       if (!empty($attributes)) {
 895         return $attributes;
 896       }
 897     }
 898     return NULL;
 899   }
 900
 901   /**
 902    * Create or update a record from supplied params.
 903    *
 904    * If 'id' is supplied, an existing record will be updated
 905    * Otherwise a new record will be created.
 906    *
 907    * @param array $record
 908    *
 909    * @return static
 910    * @throws \CRM_Core_Exception
 911    */
 912   public static function writeRecord(array $record): CRM_Core_DAO {
 913     $op = empty($record['id']) ? 'create' : 'edit';
 914     $className = CRM_Core_DAO_AllCoreTables::getCanonicalClassName(static::class);
 915     if ($className === 'CRM_Core_DAO') {
 916       throw new CRM_Core_Exception('Function writeRecord must be called on a subclass of CRM_Core_DAO');
 917     }
 918     $entityName = CRM_Core_DAO_AllCoreTables::getBriefName($className);
 919
 920     \CRM_Utils_Hook::pre($op, $entityName, $record['id'] ?? NULL, $record);
 921     $fields = static::getSupportedFields();
 922     $instance = new static();
 923     // Ensure fields exist before attempting to write to them
 924     $values = array_intersect_key($record, $fields);
 925     $instance->copyValues($values);
 926     if (empty($values['id']) && array_key_exists('name', $fields) && empty($values['name']) && !empty($values['label'])) {
 927       $instance->makeNameFromLabel();
 928     }
 929     $instance->save();
 930
 931     if (!empty($record['custom']) && is_array($record['custom'])) {
 932       CRM_Core_BAO_CustomValueTable::store($record['custom'], static::$_tableName, $instance->id, $op);
 933     }
 934
 935     \CRM_Utils_Hook::post($op, $entityName, $instance->id, $instance);
 936
 937     return $instance;
 938   }
 939
 940   /**
 941    * Bulk save multiple records
 942    *
 943    * @param array[] $records
 944    * @return static[]
 945    * @throws CRM_Core_Exception
 946    */
 947   public static function writeRecords(array $records): array {
 948     $results = [];
 949     foreach ($records as $record) {
 950       $results[] = static::writeRecord($record);
 951     }
 952     return $results;
 953   }
 954
 955   /**
 956    * Delete a record from supplied params.
 957    *
 958    * @param array $record
 959    *   'id' is required.
 960    * @return static
 961    * @throws CRM_Core_Exception
 962    */
 963   public static function deleteRecord(array $record) {
 964     $className = CRM_Core_DAO_AllCoreTables::getCanonicalClassName(static::class);
 965     if ($className === 'CRM_Core_DAO') {
 966       throw new CRM_Core_Exception('Function deleteRecord must be called on a subclass of CRM_Core_DAO');
 967     }
 968     $entityName = CRM_Core_DAO_AllCoreTables::getBriefName($className);
 969     if (empty($record['id'])) {
 970       throw new CRM_Core_Exception("Cannot delete {$entityName} with no id.");
 971     }
 972     CRM_Utils_Type::validate($record['id'], 'Positive');
 973
 974     CRM_Utils_Hook::pre('delete', $entityName, $record['id'], $record);
 975     $instance = new $className();
 976     $instance->id = $record['id'];
 977     // Load complete object for the sake of hook_civicrm_post, below
 978     $instance->find(TRUE);
 979     if (!$instance || !$instance->delete()) {
 980       throw new CRM_Core_Exception("Could not delete {$entityName} id {$record['id']}");
 981     }
 982     // For other operations this hook is passed an incomplete object and hook listeners can load if needed.
 983     // But that's not possible with delete because it's gone from the database by the time this hook is called.
 984     // So in this case the object has been pre-loaded so hook listeners have access to the complete record.
 985     CRM_Utils_Hook::post('delete', $entityName, $record['id'], $instance);
 986
 987     return $instance;
 988   }
 989
 990   /**
 991    * Bulk delete multiple records.
 992    *
 993    * @param array[] $records
 994    * @return static[]
 995    * @throws CRM_Core_Exception
 996    */
 997   public static function deleteRecords(array $records) {
 998     $results = [];
 999     foreach ($records as $record) {
1000       $results[] = static::deleteRecord($record);
1001     }
1002     return $results;
1003   }
1004
1005   /**
1006    * Check if there is a record with the same name in the db.
1007    *
1008    * @param string $value
1009    *   The value of the field we are checking.
1010    * @param string $daoName
1011    *   The dao object name.
1012    * @param string $daoID
1013    *   The id of the object being updated. u can change your name.
1014    *                          as long as there is no conflict
1015    * @param string $fieldName
1016    *   The name of the field in the DAO.
1017    *
1018    * @param string $domainID
1019    *   The id of the domain.  Object exists only for the given domain.
1020    *
1021    * @return bool
1022    *   true if object exists
1023    */
1024   public static function objectExists($value, $daoName, $daoID, $fieldName = 'name', $domainID = NULL) {
1025     $object = new $daoName();
1026     $object->$fieldName = $value;
1027     if ($domainID) {
1028       $object->domain_id = $domainID;
1029     }
1030
1031     if ($object->find(TRUE)) {
1032       return $daoID && $object->id == $daoID;
1033     }
1034     else {
1035       return TRUE;
1036     }
1037   }
1038
1039   /**
1040    * Check if there is a given column in a specific table.
1041    *
1042    * @deprecated
1043    * @see CRM_Core_BAO_SchemaHandler::checkIfFieldExists
1044    *
1045    * @param string $tableName
1046    * @param string $columnName
1047    * @param bool $i18nRewrite
1048    *   Whether to rewrite the query on multilingual setups.
1049    *
1050    * @return bool
1051    *   true if exists, else false
1052    */
1053   public static function checkFieldExists($tableName, $columnName, $i18nRewrite = TRUE) {
1054     CRM_Core_Error::deprecatedFunctionWarning('CRM_Core_BAO_SchemaHandler::checkIfFieldExists');
1055     return CRM_Core_BAO_SchemaHandler::checkIfFieldExists($tableName, $columnName, $i18nRewrite);
1056   }
1057
1058   /**
1059    * Scans all the tables using a slow query and table name.
1060    *
1061    * @return array
1062    */
1063   public static function getTableNames() {
1064     $dao = CRM_Core_DAO::executeQuery(
1065       "SELECT TABLE_NAME
1066        FROM information_schema.TABLES
1067        WHERE TABLE_SCHEMA = '" . CRM_Core_DAO::getDatabaseName() . "'
1068          AND TABLE_NAME LIKE 'civicrm_%'
1069          AND TABLE_NAME NOT LIKE 'civicrm_import_job_%'
1070          AND TABLE_NAME NOT LIKE '%_temp%'
1071       ");
1072
1073     while ($dao->fetch()) {
1074       $values[] = $dao->TABLE_NAME;
1075     }
1076     return $values;
1077   }
1078
1079   /**
1080    * @param int $maxTablesToCheck
1081    *
1082    * @return bool
1083    */
1084   public static function isDBMyISAM($maxTablesToCheck = 10) {
1085     return CRM_Core_DAO::singleValueQuery(
1086       "SELECT count(*)
1087        FROM information_schema.TABLES
1088        WHERE ENGINE = 'MyISAM'
1089          AND TABLE_SCHEMA = '" . CRM_Core_DAO::getDatabaseName() . "'
1090          AND TABLE_NAME LIKE 'civicrm_%'
1091          AND TABLE_NAME NOT LIKE 'civicrm_import_job_%'
1092          AND TABLE_NAME NOT LIKE '%_temp%'
1093          AND TABLE_NAME NOT LIKE 'civicrm_tmp_%'
1094       ");
1095   }
1096
1097   /**
1098    * Get the name of the CiviCRM database.
1099    *
1100    * @return string
1101    */
1102   public static function getDatabaseName() {
1103     $daoObj = new CRM_Core_DAO();
1104     return $daoObj->database();
1105   }
1106
1107   /**
1108    * Checks if a constraint exists for a specified table.
1109    *
1110    * @param string $tableName
1111    * @param string $constraint
1112    *
1113    * @return bool
1114    *   true if constraint exists, false otherwise
1115    *
1116    * @throws \CRM_Core_Exception
1117    */
1118   public static function checkConstraintExists($tableName, $constraint) {
1119     static $show = [];
1120
1121     if (!array_key_exists($tableName, $show)) {
1122       $query = "SHOW CREATE TABLE $tableName";
1123       $dao = CRM_Core_DAO::executeQuery($query, [], TRUE, NULL, FALSE, FALSE);
1124
1125       if (!$dao->fetch()) {
1126         throw new CRM_Core_Exception('query failed');
1127       }
1128
1129       $show[$tableName] = $dao->Create_Table;
1130     }
1131
1132     return (bool) preg_match("/\b$constraint\b/i", $show[$tableName]);
1133   }
1134
1135   /**
1136    * Checks if CONSTRAINT keyword exists for a specified table.
1137    *
1138    * @param array $tables
1139    *
1140    * @throws CRM_Core_Exception
1141    *
1142    * @return bool
1143    *   true if CONSTRAINT keyword exists, false otherwise
1144    */
1145   public static function schemaRequiresRebuilding($tables = ["civicrm_contact"]) {
1146     $show = [];
1147     foreach ($tables as $tableName) {
1148       if (!array_key_exists($tableName, $show)) {
1149         $query = "SHOW CREATE TABLE $tableName";
1150         $dao = CRM_Core_DAO::executeQuery($query, [], TRUE, NULL, FALSE, FALSE);
1151
1152         if (!$dao->fetch()) {
1153           throw new CRM_Core_Exception('Show create table failed.');
1154         }
1155
1156         $show[$tableName] = $dao->Create_Table;
1157       }
1158
1159       $result = (bool) preg_match("/\bCONSTRAINT\b\s/i", $show[$tableName]);
1160       if ($result == TRUE) {
1161         continue;
1162       }
1163       else {
1164         return FALSE;
1165       }
1166     }
1167     return TRUE;
1168   }
1169
1170   /**
1171    * Checks if the FK constraint name is in the format 'FK_tableName_columnName'
1172    * for a specified column of a table.
1173    *
1174    * @param string $tableName
1175    * @param string $columnName
1176    *
1177    * @return bool
1178    *   true if in format, false otherwise
1179    *
1180    * @throws \CRM_Core_Exception
1181    */
1182   public static function checkFKConstraintInFormat($tableName, $columnName) {
1183     static $show = [];
1184
1185     if (!array_key_exists($tableName, $show)) {
1186       $query = "SHOW CREATE TABLE $tableName";
1187       $dao = CRM_Core_DAO::executeQuery($query);
1188
1189       if (!$dao->fetch()) {
1190         throw new CRM_Core_Exception('query failed');
1191       }
1192
1193       $show[$tableName] = $dao->Create_Table;
1194     }
1195     $constraint = "`FK_{$tableName}_{$columnName}`";
1196     $pattern = "/\bCONSTRAINT\b\s+%s\s+\bFOREIGN\s+KEY\b\s/i";
1197     return (bool) preg_match(sprintf($pattern, $constraint), $show[$tableName]);
1198   }
1199
1200   /**
1201    * Check whether a specific column in a specific table has always the same value.
1202    *
1203    * @param string $tableName
1204    * @param string $columnName
1205    * @param string $columnValue
1206    *
1207    * @return bool
1208    *   true if the value is always $columnValue, false otherwise
1209    */
1210   public static function checkFieldHasAlwaysValue($tableName, $columnName, $columnValue) {
1211     $query = "SELECT * FROM $tableName WHERE $columnName != '$columnValue'";
1212     $dao = CRM_Core_DAO::executeQuery($query);
1213     $result = $dao->fetch() ? FALSE : TRUE;
1214     return $result;
1215   }
1216
1217   /**
1218    * Check whether a specific column in a specific table is always NULL.
1219    *
1220    * @param string $tableName
1221    * @param string $columnName
1222    *
1223    * @return bool
1224    *   true if if the value is always NULL, false otherwise
1225    */
1226   public static function checkFieldIsAlwaysNull($tableName, $columnName) {
1227     $query = "SELECT * FROM $tableName WHERE $columnName IS NOT NULL";
1228     $dao = CRM_Core_DAO::executeQuery($query);
1229     $result = $dao->fetch() ? FALSE : TRUE;
1230     return $result;
1231   }
1232
1233   /**
1234    * Checks if this DAO's table ought to exist.
1235    *
1236    * If there are pending DB updates, this function compares the CiviCRM version of the table to the current schema version.
1237    *
1238    * @return bool
1239    * @throws CRM_Core_Exception
1240    */
1241   public static function tableHasBeenAdded() {
1242     if (CRM_Utils_System::version() === CRM_Core_BAO_Domain::version()) {
1243       return TRUE;
1244     }
1245     $daoExt = defined(static::class . '::EXT') ? constant(static::class . '::EXT') : NULL;
1246     $daoVersion = defined(static::class . '::TABLE_ADDED') ? constant(static::class . '::TABLE_ADDED') : '1.0';
1247     return !($daoExt === 'civicrm' && version_compare(CRM_Core_BAO_Domain::version(), $daoVersion, '<'));
1248   }
1249
1250   /**
1251    * Check if there is a given table in the database.
1252    *
1253    * @param string $tableName
1254    *
1255    * @return bool
1256    *   true if exists, else false
1257    */
1258   public static function checkTableExists($tableName) {
1259     $query = "
1260 SHOW TABLES
1261 LIKE %1
1262 ";
1263     $params = [1 => [$tableName, 'String']];
1264
1265     $dao = CRM_Core_DAO::executeQuery($query, $params);
1266     return (bool) $dao->fetch();
1267   }
1268
1269   /**
1270    * Check if a given table has data.
1271    *
1272    * @param string $tableName
1273    * @return bool
1274    *   TRUE if $tableName has at least one record.
1275    */
1276   public static function checkTableHasData($tableName) {
1277     $c = CRM_Core_DAO::singleValueQuery(sprintf('SELECT count(*) c FROM `%s`', $tableName));
1278     return $c > 0;
1279   }
1280
1281   /**
1282    * @param $version
1283    * @deprecated
1284    * @return bool
1285    */
1286   public function checkVersion($version) {
1287     CRM_Core_Error::deprecatedFunctionWarning('CRM_Core_BAO_Domain::version');
1288     $dbVersion = CRM_Core_BAO_Domain::version();
1289     return trim($version) == trim($dbVersion);
1290   }
1291
1292   /**
1293    * Find a DAO object for the given ID and return it.
1294    *
1295    * @param int $id
1296    *   Id of the DAO object being searched for.
1297    *
1298    * @return CRM_Core_DAO
1299    *   Object of the type of the class that called this function.
1300    *
1301    * @throws Exception
1302    */
1303   public static function findById($id) {
1304     $object = new static();
1305     $object->id = $id;
1306     if (!$object->find(TRUE)) {
1307       throw new Exception("Unable to find a " . get_called_class() . " with id {$id}.");
1308     }
1309     return $object;
1310   }
1311
1312   /**
1313    * Returns all results as array-encoded records.
1314    *
1315    * @return array
1316    */
1317   public function fetchAll($k = FALSE, $v = FALSE, $method = FALSE) {
1318     $result = [];
1319     while ($this->fetch()) {
1320       $result[] = $this->toArray();
1321     }
1322     return $result;
1323   }
1324
1325   /**
1326    * Return the results as PHP generator.
1327    *
1328    * @param string $type
1329    *   Whether the generator yields 'dao' objects or 'array's.
1330    */
1331   public function fetchGenerator($type = 'dao') {
1332     while ($this->fetch()) {
1333       switch ($type) {
1334         case 'dao':
1335           yield $this;
1336           break;
1337
1338         case 'array':
1339           yield $this->toArray();
1340           break;
1341
1342         default:
1343           throw new \RuntimeException("Invalid record type ($type)");
1344       }
1345     }
1346   }
1347
1348   /**
1349    * Returns a singular value.
1350    *
1351    * @return mixed|NULL
1352    */
1353   public function fetchValue() {
1354     $result = $this->getDatabaseResult();
1355     $row = $result->fetchRow();
1356     $ret = NULL;
1357     if ($row) {
1358       $ret = $row[0];
1359     }
1360     $this->free();
1361     return $ret;
1362   }
1363
1364   /**
1365    * Get all the result records as mapping between columns.
1366    *
1367    * @param string $keyColumn
1368    *   Ex: "name"
1369    * @param string $valueColumn
1370    *   Ex: "label"
1371    * @return array
1372    *   Ex: ["foo" => "The Foo Bar", "baz" => "The Baz Qux"]
1373    */
1374   public function fetchMap($keyColumn, $valueColumn) {
1375     $result = [];
1376     while ($this->fetch()) {
1377       $result[$this->{$keyColumn}] = $this->{$valueColumn};
1378     }
1379     return $result;
1380   }
1381
1382   /**
1383    * Given a DAO name, a column name and a column value, find the record and GET the value of another column in that record
1384    *
1385    * @param string $daoName
1386    *   Name of the DAO (Example: CRM_Contact_DAO_Contact to retrieve value from a contact).
1387    * @param int $searchValue
1388    *   Value of the column you want to search by.
1389    * @param string $returnColumn
1390    *   Name of the column you want to GET the value of.
1391    * @param string $searchColumn
1392    *   Name of the column you want to search by.
1393    * @param bool $force
1394    *   Skip use of the cache.
1395    *
1396    * @return string|int|null
1397    *   Value of $returnColumn in the retrieved record
1398    *
1399    * @throws \CRM_Core_Exception
1400    */
1401   public static function getFieldValue($daoName, $searchValue, $returnColumn = 'name', $searchColumn = 'id', $force = FALSE) {
1402     if (
1403       empty($searchValue) ||
1404       trim(strtolower($searchValue)) == 'null'
1405     ) {
1406       // adding this here since developers forget to check for an id
1407       // or for the 'null' (which is a bad DAO kludge)
1408       // and hence we get the first value in the db
1409       throw new CRM_Core_Exception('getFieldValue failed');
1410     }
1411
1412     self::$_dbColumnValueCache = self::$_dbColumnValueCache ?? [];
1413
1414     while (strpos($daoName, '_BAO_') !== FALSE) {
1415       $daoName = get_parent_class($daoName);
1416     }
1417
1418     if ($force ||
1419       empty(self::$_dbColumnValueCache[$daoName][$searchColumn][$searchValue]) ||
1420       !array_key_exists($returnColumn, self::$_dbColumnValueCache[$daoName][$searchColumn][$searchValue])
1421     ) {
1422       $object = new $daoName();
1423       $object->$searchColumn = $searchValue;
1424       $object->selectAdd();
1425       $object->selectAdd($returnColumn);
1426
1427       $result = NULL;
1428       if ($object->find(TRUE)) {
1429         $result = $object->$returnColumn;
1430       }
1431
1432       self::$_dbColumnValueCache[$daoName][$searchColumn][$searchValue][$returnColumn] = $result;
1433     }
1434     return self::$_dbColumnValueCache[$daoName][$searchColumn][$searchValue][$returnColumn];
1435   }
1436
1437   /**
1438    * Given a DAO name, a column name and a column value, find the record and SET the value of another column in that record
1439    *
1440    * @param string $daoName
1441    *   Name of the DAO (Example: CRM_Contact_DAO_Contact to retrieve value from a contact).
1442    * @param int $searchValue
1443    *   Value of the column you want to search by.
1444    * @param string $setColumn
1445    *   Name of the column you want to SET the value of.
1446    * @param string $setValue
1447    *   SET the setColumn to this value.
1448    * @param string $searchColumn
1449    *   Name of the column you want to search by.
1450    *
1451    * @return bool
1452    *   true if we found and updated the object, else false
1453    */
1454   public static function setFieldValue($daoName, $searchValue, $setColumn, $setValue, $searchColumn = 'id') {
1455     $object = new $daoName();
1456     $object->selectAdd();
1457     $object->selectAdd("$searchColumn, $setColumn");
1458     $object->$searchColumn = $searchValue;
1459     $result = FALSE;
1460     if ($object->find(TRUE)) {
1461       $object->$setColumn = $setValue;
1462       if ($object->save()) {
1463         $result = TRUE;
1464       }
1465     }
1466     $object->free();
1467     return $result;
1468   }
1469
1470   /**
1471    * Get sort string.
1472    *
1473    * @param array|object $sort either array or CRM_Utils_Sort
1474    * @param string $default
1475    *   Default sort value.
1476    *
1477    * @return string
1478    */
1479   public static function getSortString($sort, $default = NULL) {
1480     // check if sort is of type CRM_Utils_Sort
1481     if (is_a($sort, 'CRM_Utils_Sort')) {
1482       return $sort->orderBy();
1483     }
1484
1485     $sortString = '';
1486
1487     // is it an array specified as $field => $sortDirection ?
1488     if ($sort) {
1489       foreach ($sort as $k => $v) {
1490         $sortString .= "$k $v,";
1491       }
1492       return rtrim($sortString, ',');
1493     }
1494     return $default;
1495   }
1496
1497   /**
1498    * Fetch object based on array of properties.
1499    *
1500    * @param string $daoName
1501    *   Name of the dao object.
1502    * @param array $params
1503    *   (reference ) an assoc array of name/value pairs.
1504    * @param array $defaults
1505    *   (reference ) an assoc array to hold the flattened values.
1506    * @param array $returnProperities
1507    *   An assoc array of fields that need to be returned, eg array( 'first_name', 'last_name').
1508    *
1509    * @return static|null
1510    */
1511   public static function commonRetrieve($daoName, &$params, &$defaults, $returnProperities = NULL) {
1512     $object = new $daoName();
1513     $object->copyValues($params);
1514
1515     // return only specific fields if returnproperties are sent
1516     if (!empty($returnProperities)) {
1517       $object->selectAdd();
1518       $object->selectAdd(implode(',', $returnProperities));
1519     }
1520
1521     if ($object->find(TRUE)) {
1522       self::storeValues($object, $defaults);
1523       return $object;
1524     }
1525     return NULL;
1526   }
1527
1528   /**
1529    * Delete the object records that are associated with this contact.
1530    *
1531    * @param string $daoName
1532    *   Name of the dao object.
1533    * @param int $contactId
1534    *   Id of the contact to delete.
1535    */
1536   public static function deleteEntityContact($daoName, $contactId) {
1537     $object = new $daoName();
1538
1539     $object->entity_table = 'civicrm_contact';
1540     $object->entity_id = $contactId;
1541     $object->delete();
1542   }
1543
1544   /**
1545    * Execute an unbuffered query.
1546    *
1547    * This is a wrapper around new functionality exposed with CRM-17748.
1548    *
1549    * @param string $query query to be executed
1550    *
1551    * @param array $params
1552    * @param bool $abort
1553    * @param null $daoName
1554    * @param bool $freeDAO
1555    * @param bool $i18nRewrite
1556    * @param bool $trapException
1557    *
1558    * @return CRM_Core_DAO
1559    *   Object that points to an unbuffered result set
1560    */
1561   public static function executeUnbufferedQuery(
1562     $query,
1563     $params = [],
1564     $abort = TRUE,
1565     $daoName = NULL,
1566     $freeDAO = FALSE,
1567     $i18nRewrite = TRUE,
1568     $trapException = FALSE
1569   ) {
1570
1571     return self::executeQuery(
1572       $query,
1573       $params,
1574       $abort,
1575       $daoName,
1576       $freeDAO,
1577       $i18nRewrite,
1578       $trapException,
1579       ['result_buffering' => 0]
1580     );
1581   }
1582
1583   /**
1584    * Execute a query.
1585    *
1586    * @param string $query
1587    *   Query to be executed.
1588    *
1589    * @param array $params
1590    * @param bool $abort
1591    * @param null $daoName
1592    * @param bool $freeDAO
1593    * @param bool $i18nRewrite
1594    * @param bool $trapException
1595    * @param array $options
1596    *
1597    * @return CRM_Core_DAO|object
1598    *   object that holds the results of the query
1599    *   NB - if this is defined as just returning a DAO phpstorm keeps pointing
1600    *   out all the properties that are not part of the DAO
1601    */
1602   public static function &executeQuery(
1603     $query,
1604     $params = [],
1605     $abort = TRUE,
1606     $daoName = NULL,
1607     $freeDAO = FALSE,
1608     $i18nRewrite = TRUE,
1609     $trapException = FALSE,
1610     $options = []
1611   ) {
1612     $queryStr = self::composeQuery($query, $params, $abort);
1613
1614     if (!$daoName) {
1615       $dao = new CRM_Core_DAO();
1616     }
1617     else {
1618       $dao = new $daoName();
1619     }
1620
1621     if ($trapException) {
1622       CRM_Core_Error::deprecatedFunctionWarning('calling functions should handle exceptions');
1623       $errorScope = CRM_Core_TemporaryErrorScope::ignoreException();
1624     }
1625
1626     if ($dao->isValidOption($options)) {
1627       $dao->setOptions($options);
1628     }
1629
1630     $result = $dao->query($queryStr, $i18nRewrite);
1631
1632     // since it is unbuffered, ($dao->N==0) is true.  This blocks the standard fetch() mechanism.
1633     if (CRM_Utils_Array::value('result_buffering', $options) === 0) {
1634       $dao->N = TRUE;
1635     }
1636
1637     if (is_a($result, 'DB_Error')) {
1638       CRM_Core_Error::deprecatedFunctionWarning('calling functions should handle exceptions');
1639       return $result;
1640     }
1641
1642     return $dao;
1643   }
1644
1645   /**
1646    * Wrapper to validate internal DAO options before passing to DB_mysql/DB_Common level
1647    *
1648    * @param array $options
1649    *
1650    * @return bool
1651    *   Provided options are valid
1652    */
1653   public function isValidOption($options) {
1654     $isValid = FALSE;
1655     $validOptions = [
1656       'result_buffering',
1657       'persistent',
1658       'ssl',
1659       'portability',
1660     ];
1661
1662     if (empty($options)) {
1663       return $isValid;
1664     }
1665
1666     foreach (array_keys($options) as $option) {
1667       if (!in_array($option, $validOptions)) {
1668         return FALSE;
1669       }
1670       $isValid = TRUE;
1671     }
1672
1673     return $isValid;
1674   }
1675
1676   /**
1677    * Execute a query and get the single result.
1678    *
1679    * @param string $query
1680    *   Query to be executed.
1681    * @param array $params
1682    * @param bool $abort
1683    * @param bool $i18nRewrite
1684    * @return string|null
1685    *   the result of the query if any
1686    *
1687    */
1688   public static function &singleValueQuery(
1689     $query,
1690     $params = [],
1691     $abort = TRUE,
1692     $i18nRewrite = TRUE
1693   ) {
1694     $queryStr = self::composeQuery($query, $params, $abort);
1695
1696     static $_dao = NULL;
1697
1698     if (!$_dao) {
1699       $_dao = new CRM_Core_DAO();
1700     }
1701
1702     $_dao->query($queryStr, $i18nRewrite);
1703
1704     $result = $_dao->getDatabaseResult();
1705     $ret = NULL;
1706     if ($result) {
1707       $row = $result->fetchRow();
1708       if ($row) {
1709         $ret = $row[0];
1710       }
1711     }
1712     $_dao->free();
1713     return $ret;
1714   }
1715
1716   /**
1717    * Compose the query by merging the parameters into it.
1718    *
1719    * @param string $query
1720    * @param array $params
1721    * @param bool $abort
1722    *
1723    * @return string
1724    * @throws CRM_Core_Exception
1725    */
1726   public static function composeQuery($query, $params = [], $abort = TRUE) {
1727     $tr = [];
1728     foreach ($params as $key => $item) {
1729       if (is_numeric($key)) {
1730         if (CRM_Utils_Type::validate($item[0], $item[1]) !== NULL) {
1731           $item[0] = self::escapeString($item[0]);
1732           if ($item[1] == 'String' ||
1733             $item[1] == 'Memo' ||
1734             $item[1] == 'Link'
1735           ) {
1736             // Support class constants stipulating wildcard characters and/or
1737             // non-quoting of strings. Also support legacy code which may be
1738             // passing in TRUE or 1 for $item[2], which used to indicate the
1739             // use of wildcard characters.
1740             if (!empty($item[2])) {
1741               if ($item[2] & CRM_Core_DAO::QUERY_FORMAT_WILDCARD || $item[2] === TRUE) {
1742                 $item[0] = "'%{$item[0]}%'";
1743               }
1744               elseif (!($item[2] & CRM_Core_DAO::QUERY_FORMAT_NO_QUOTES)) {
1745                 $item[0] = "'{$item[0]}'";
1746               }
1747             }
1748             else {
1749               $item[0] = "'{$item[0]}'";
1750             }
1751           }
1752
1753           if (($item[1] == 'Date' || $item[1] == 'Timestamp') &&
1754             strlen($item[0]) == 0
1755           ) {
1756             $item[0] = 'null';
1757           }
1758
1759           $tr['%' . $key] = $item[0];
1760         }
1761         elseif ($abort) {
1762           throw new CRM_Core_Exception("{$item[0]} is not of type {$item[1]}");
1763         }
1764       }
1765     }
1766
1767     return strtr($query, $tr);
1768   }
1769
1770   /**
1771    * @param null $ids
1772    */
1773   public static function freeResult($ids = NULL) {
1774     global $_DB_DATAOBJECT;
1775
1776     if (!$ids) {
1777       if (!$_DB_DATAOBJECT ||
1778         !isset($_DB_DATAOBJECT['RESULTS'])
1779       ) {
1780         return;
1781       }
1782       $ids = array_keys($_DB_DATAOBJECT['RESULTS']);
1783     }
1784
1785     foreach ($ids as $id) {
1786       if (isset($_DB_DATAOBJECT['RESULTS'][$id])) {
1787         $_DB_DATAOBJECT['RESULTS'][$id]->free();
1788         unset($_DB_DATAOBJECT['RESULTS'][$id]);
1789       }
1790
1791       if (isset($_DB_DATAOBJECT['RESULTFIELDS'][$id])) {
1792         unset($_DB_DATAOBJECT['RESULTFIELDS'][$id]);
1793       }
1794     }
1795   }
1796
1797   /**
1798    * Make a shallow copy of an object and all the fields in the object.
1799    *
1800    * @param string $daoName
1801    *   Name of the dao.
1802    * @param array $criteria
1803    *   Array of all the fields & values.
1804    *   on which basis to copy
1805    * @param array $newData
1806    *   Array of all the fields & values.
1807    *   to be copied besides the other fields
1808    * @param string $fieldsFix
1809    *   Array of fields that you want to prefix/suffix/replace.
1810    * @param string $blockCopyOfDependencies
1811    *   Fields that you want to block from.
1812    *   getting copied
1813    * @param bool $blockCopyofCustomValues
1814    *   Case when you don't want to copy the custom values set in a
1815    *   template as it will override/ignore the submitted custom values
1816    *
1817    * @return CRM_Core_DAO|bool
1818    *   the newly created copy of the object. False if none created.
1819    */
1820   public static function copyGeneric($daoName, $criteria, $newData = NULL, $fieldsFix = NULL, $blockCopyOfDependencies = NULL, $blockCopyofCustomValues = FALSE) {
1821     $object = new $daoName();
1822     $newObject = FALSE;
1823     if (!$newData) {
1824       $object->id = $criteria['id'];
1825     }
1826     else {
1827       foreach ($criteria as $key => $value) {
1828         $object->$key = $value;
1829       }
1830     }
1831
1832     $object->find();
1833     while ($object->fetch()) {
1834
1835       // all the objects except with $blockCopyOfDependencies set
1836       // be copied - addresses #CRM-1962
1837
1838       if ($blockCopyOfDependencies && $object->$blockCopyOfDependencies) {
1839         break;
1840       }
1841
1842       $newObject = new $daoName();
1843
1844       $fields = $object->fields();
1845       $fieldsToPrefix = [];
1846       $fieldsToSuffix = [];
1847       $fieldsToReplace = [];
1848       if (!empty($fieldsFix['prefix'])) {
1849         $fieldsToPrefix = $fieldsFix['prefix'];
1850       }
1851       if (!empty($fieldsFix['suffix'])) {
1852         $fieldsToSuffix = $fieldsFix['suffix'];
1853       }
1854       if (!empty($fieldsFix['replace'])) {
1855         $fieldsToReplace = $fieldsFix['replace'];
1856       }
1857
1858       $localizableFields = FALSE;
1859       foreach ($fields as $name => $value) {
1860         if ($name == 'id' || $value['name'] == 'id') {
1861           // copy everything but the id!
1862           continue;
1863         }
1864
1865         $dbName = $value['name'];
1866         $type = CRM_Utils_Type::typeToString($value['type']);
1867         $newObject->$dbName = $object->$dbName;
1868         if (isset($fieldsToPrefix[$dbName])) {
1869           $newObject->$dbName = $fieldsToPrefix[$dbName] . $newObject->$dbName;
1870         }
1871         if (isset($fieldsToSuffix[$dbName])) {
1872           $newObject->$dbName .= $fieldsToSuffix[$dbName];
1873         }
1874         if (isset($fieldsToReplace[$dbName])) {
1875           $newObject->$dbName = $fieldsToReplace[$dbName];
1876         }
1877
1878         if ($type == 'Timestamp' || $type == 'Date') {
1879           $newObject->$dbName = CRM_Utils_Date::isoToMysql($newObject->$dbName);
1880         }
1881
1882         if (!empty($value['localizable'])) {
1883           $localizableFields = TRUE;
1884         }
1885
1886         if ($newData) {
1887           $newObject->copyValues($newData);
1888         }
1889       }
1890       $newObject->save();
1891
1892       // ensure we copy all localized fields as well
1893       if (CRM_Core_I18n::isMultilingual() && $localizableFields) {
1894         global $dbLocale;
1895         $locales = CRM_Core_I18n::getMultilingual();
1896         $curLocale = CRM_Core_I18n::getLocale();
1897         // loop on other locales
1898         foreach ($locales as $locale) {
1899           if ($locale != $curLocale) {
1900             // setLocale doesn't seems to be reliable to set dbLocale and we only need to change the db locale
1901             $dbLocale = '_' . $locale;
1902             $newObject->copyLocalizable($object->id, $newObject->id, $fieldsToPrefix, $fieldsToSuffix, $fieldsToReplace);
1903           }
1904         }
1905         // restore dbLocale to starting value
1906         $dbLocale = '_' . $curLocale;
1907       }
1908
1909       if (!$blockCopyofCustomValues) {
1910         $newObject->copyCustomFields($object->id, $newObject->id);
1911       }
1912       CRM_Utils_Hook::post('create', CRM_Core_DAO_AllCoreTables::getBriefName($daoName), $newObject->id, $newObject);
1913     }
1914
1915     return $newObject;
1916   }
1917
1918   /**
1919    * Method that copies localizable fields from an old entity to a new one.
1920    *
1921    * Fixes bug dev/core#2479,
1922    * where non current locale fields are copied from current locale losing translation when copying
1923    *
1924    * @param int $entityID
1925    * @param int $newEntityID
1926    * @param array $fieldsToPrefix
1927    * @param array $fieldsToSuffix
1928    * @param array $fieldsToReplace
1929    */
1930   protected function copyLocalizable($entityID, $newEntityID, $fieldsToPrefix, $fieldsToSuffix, $fieldsToReplace) {
1931     $entity = get_class($this);
1932     $object = new $entity();
1933     $object->id = $entityID;
1934     $object->find();
1935
1936     $newObject = new $entity();
1937     $newObject->id = $newEntityID;
1938
1939     $newObject->find();
1940
1941     if ($object->fetch() && $newObject->fetch()) {
1942
1943       $fields = $object->fields();
1944       foreach ($fields as $name => $value) {
1945
1946         if ($name == 'id' || $value['name'] == 'id') {
1947           // copy everything but the id!
1948           continue;
1949         }
1950
1951         // only copy localizable fields
1952         if (!$value['localizable']) {
1953           continue;
1954         }
1955
1956         $dbName = $value['name'];
1957         $type = CRM_Utils_Type::typeToString($value['type']);
1958         $newObject->$dbName = $object->$dbName;
1959         if (isset($fieldsToPrefix[$dbName])) {
1960           $newObject->$dbName = $fieldsToPrefix[$dbName] . $newObject->$dbName;
1961         }
1962         if (isset($fieldsToSuffix[$dbName])) {
1963           $newObject->$dbName .= $fieldsToSuffix[$dbName];
1964         }
1965         if (isset($fieldsToReplace[$dbName])) {
1966           $newObject->$dbName = $fieldsToReplace[$dbName];
1967         }
1968
1969         if ($type == 'Timestamp' || $type == 'Date') {
1970           $newObject->$dbName = CRM_Utils_Date::isoToMysql($newObject->$dbName);
1971         }
1972
1973       }
1974       $newObject->save();
1975
1976     }
1977   }
1978
1979   /**
1980    * Method that copies custom fields values from an old entity to a new one.
1981    *
1982    * Fixes bug CRM-19302,
1983    * where if a custom field of File type was present, left both events using the same file,
1984    * breaking download URL's for the old event.
1985    *
1986    * @todo the goal here is to clean this up so that it works for any entity. Copy Generic already DOES some custom field stuff
1987    * but it seems to be bypassed & perhaps less good than this (or this just duplicates it...)
1988    *
1989    * @param int $entityID
1990    * @param int $newEntityID
1991    * @param string $parentOperation
1992    */
1993   public function copyCustomFields($entityID, $newEntityID, $parentOperation = NULL) {
1994     $entity = CRM_Core_DAO_AllCoreTables::getBriefName(get_class($this));
1995     $tableName = CRM_Core_DAO_AllCoreTables::getTableForClass(get_class($this));
1996     // Obtain custom values for the old entity.
1997     $customParams = $htmlType = [];
1998     $customValues = CRM_Core_BAO_CustomValueTable::getEntityValues($entityID, $entity);
1999
2000     // If custom values present, we copy them
2001     if (!empty($customValues)) {
2002       // Get Field ID's and identify File type attributes, to handle file copying.
2003       $fieldIds = implode(', ', array_keys($customValues));
2004       $sql = "SELECT id FROM civicrm_custom_field WHERE html_type = 'File' AND id IN ( {$fieldIds} )";
2005       $result = CRM_Core_DAO::executeQuery($sql);
2006
2007       // Build array of File type fields
2008       while ($result->fetch()) {
2009         $htmlType[] = $result->id;
2010       }
2011
2012       // Build params array of custom values
2013       foreach ($customValues as $field => $value) {
2014         if ($value !== NULL) {
2015           // Handle File type attributes
2016           if (in_array($field, $htmlType)) {
2017             $fileValues = CRM_Core_BAO_File::path($value, $entityID);
2018             $customParams["custom_{$field}_-1"] = [
2019               'name' => CRM_Utils_File::duplicate($fileValues[0]),
2020               'type' => $fileValues[1],
2021             ];
2022           }
2023           // Handle other types
2024           else {
2025             $customParams["custom_{$field}_-1"] = $value;
2026           }
2027         }
2028       }
2029
2030       // Save Custom Fields for new Entity.
2031       CRM_Core_BAO_CustomValueTable::postProcess($customParams, $tableName, $newEntityID, $entity, $parentOperation ?? 'create');
2032     }
2033
2034     // copy activity attachments ( if any )
2035     CRM_Core_BAO_File::copyEntityFile($tableName, $entityID, $tableName, $newEntityID);
2036   }
2037
2038   /**
2039    * Cascade update through related entities.
2040    *
2041    * @param string $daoName
2042    * @param $fromId
2043    * @param $toId
2044    * @param array $newData
2045    *
2046    * @return CRM_Core_DAO|null
2047    */
2048   public static function cascadeUpdate($daoName, $fromId, $toId, $newData = []) {
2049     $object = new $daoName();
2050     $object->id = $fromId;
2051
2052     if ($object->find(TRUE)) {
2053       $newObject = new $daoName();
2054       $newObject->id = $toId;
2055
2056       if ($newObject->find(TRUE)) {
2057         $fields = $object->fields();
2058         foreach ($fields as $name => $value) {
2059           if ($name == 'id' || $value['name'] == 'id') {
2060             // copy everything but the id!
2061             continue;
2062           }
2063
2064           $colName = $value['name'];
2065           $newObject->$colName = $object->$colName;
2066
2067           if (substr($name, -5) == '_date' ||
2068             substr($name, -10) == '_date_time'
2069           ) {
2070             $newObject->$colName = CRM_Utils_Date::isoToMysql($newObject->$colName);
2071           }
2072         }
2073         foreach ($newData as $k => $v) {
2074           $newObject->$k = $v;
2075         }
2076         $newObject->save();
2077         return $newObject;
2078       }
2079     }
2080     return NULL;
2081   }
2082
2083   /**
2084    * Given the component id, compute the contact id
2085    * since its used for things like send email
2086    *
2087    * @param $componentIDs
2088    * @param string $tableName
2089    * @param string $idField
2090    *
2091    * @return array
2092    */
2093   public static function getContactIDsFromComponent($componentIDs, $tableName, $idField = 'id') {
2094     $contactIDs = [];
2095
2096     if (empty($componentIDs)) {
2097       return $contactIDs;
2098     }
2099
2100     $IDs = implode(',', $componentIDs);
2101     $query = "
2102 SELECT contact_id
2103   FROM $tableName
2104  WHERE $idField IN ( $IDs )
2105 ";
2106
2107     $dao = CRM_Core_DAO::executeQuery($query);
2108     while ($dao->fetch()) {
2109       $contactIDs[] = $dao->contact_id;
2110     }
2111     return $contactIDs;
2112   }
2113
2114   /**
2115    * Fetch object based on array of properties.
2116    *
2117    * @param string $daoName
2118    *   Name of the dao object.
2119    * @param string $fieldIdName
2120    * @param int $fieldId
2121    * @param $details
2122    * @param array $returnProperities
2123    *   An assoc array of fields that need to be returned, eg array( 'first_name', 'last_name').
2124    *
2125    * @return object
2126    *   an object of type referenced by daoName
2127    */
2128   public static function commonRetrieveAll($daoName, $fieldIdName, $fieldId, &$details, $returnProperities = NULL) {
2129     require_once str_replace('_', DIRECTORY_SEPARATOR, $daoName) . ".php";
2130     $object = new $daoName();
2131     $object->$fieldIdName = $fieldId;
2132
2133     // return only specific fields if returnproperties are sent
2134     if (!empty($returnProperities)) {
2135       $object->selectAdd();
2136       $object->selectAdd('id');
2137       $object->selectAdd(implode(',', $returnProperities));
2138     }
2139
2140     $object->find();
2141     while ($object->fetch()) {
2142       $defaults = [];
2143       self::storeValues($object, $defaults);
2144       $details[$object->id] = $defaults;
2145     }
2146
2147     return $details;
2148   }
2149
2150   /**
2151    * Drop all CiviCRM tables.
2152    *
2153    * @throws \CRM_Core_Exception
2154    */
2155   public static function dropAllTables() {
2156
2157     // first drop all the custom tables we've created
2158     CRM_Core_BAO_CustomGroup::dropAllTables();
2159
2160     // drop all multilingual views
2161     CRM_Core_I18n_Schema::dropAllViews();
2162
2163     CRM_Utils_File::sourceSQLFile(CIVICRM_DSN,
2164       dirname(__FILE__) . DIRECTORY_SEPARATOR .
2165       '..' . DIRECTORY_SEPARATOR .
2166       '..' . DIRECTORY_SEPARATOR .
2167       'sql' . DIRECTORY_SEPARATOR .
2168       'civicrm_drop.mysql'
2169     );
2170   }
2171
2172   /**
2173    * @param $string
2174    *
2175    * @return string
2176    */
2177   public static function escapeString($string) {
2178     static $_dao = NULL;
2179     if (!$_dao) {
2180       // If this is an atypical case (e.g. preparing .sql file before CiviCRM
2181       // has been installed), then we fallback DB-less str_replace escaping, as
2182       // we can't use mysqli_real_escape_string, as there is no DB connection.
2183       // Note: In typical usage, escapeString() will only check one conditional
2184       // ("if !$_dao") rather than two conditionals ("if !defined(DSN)")
2185       if (!defined('CIVICRM_DSN')) {
2186         // See http://php.net/manual/en/mysqli.real-escape-string.php for the
2187         // list of characters mysqli_real_escape_string escapes.
2188         $search = ["\\", "\x00", "\n", "\r", "'", '"', "\x1a"];
2189         $replace = ["\\\\", "\\0", "\\n", "\\r", "\'", '\"', "\\Z"];
2190         return str_replace($search, $replace, $string);
2191       }
2192       $_dao = new CRM_Core_DAO();
2193     }
2194     return $_dao->escape($string);
2195   }
2196
2197   /**
2198    * Escape a list of strings for use with "WHERE X IN (...)" queries.
2199    *
2200    * @param array $strings
2201    * @param string $default
2202    *   the value to use if $strings has no elements.
2203    * @return string
2204    *   eg "abc","def","ghi"
2205    */
2206   public static function escapeStrings($strings, $default = NULL) {
2207     static $_dao = NULL;
2208     if (!$_dao) {
2209       $_dao = new CRM_Core_DAO();
2210     }
2211
2212     if (empty($strings)) {
2213       return $default;
2214     }
2215
2216     $escapes = array_map([$_dao, 'escape'], $strings);
2217     return '"' . implode('","', $escapes) . '"';
2218   }
2219
2220   /**
2221    * @param $string
2222    *
2223    * @return string
2224    */
2225   public static function escapeWildCardString($string) {
2226     // CRM-9155
2227     // ensure we escape the single characters % and _ which are mysql wild
2228     // card characters and could come in via sortByCharacter
2229     // note that mysql does not escape these characters
2230     if ($string && in_array($string,
2231         ['%', '_', '%%', '_%']
2232       )
2233     ) {
2234       return '\\' . $string;
2235     }
2236
2237     return self::escapeString($string);
2238   }
2239
2240   /**
2241    * Creates a test object, including any required objects it needs via recursion
2242    * createOnly: only create in database, do not store or return the objects (useful for perf testing)
2243    * ONLY USE FOR TESTING
2244    *
2245    * @param string $daoName
2246    * @param array $params
2247    * @param int $numObjects
2248    * @param bool $createOnly
2249    *
2250    * @return object|array|NULL
2251    *   NULL if $createOnly. A single object if $numObjects==1. Otherwise, an array of multiple objects.
2252    */
2253   public static function createTestObject(
2254     $daoName,
2255     $params = [],
2256     $numObjects = 1,
2257     $createOnly = FALSE
2258   ) {
2259     //this is a test function  also backtrace is set for the test suite it sometimes unsets itself
2260     // so we re-set here in case
2261     $config = CRM_Core_Config::singleton();
2262     $config->backtrace = TRUE;
2263
2264     static $counter = 0;
2265     CRM_Core_DAO::$_testEntitiesToSkip = [
2266       'CRM_Core_DAO_Worldregion',
2267       'CRM_Core_DAO_StateProvince',
2268       'CRM_Core_DAO_Country',
2269       'CRM_Core_DAO_Domain',
2270       'CRM_Financial_DAO_FinancialType',
2271       //because valid ones exist & we use pick them due to pseudoconstant can't reliably create & delete these
2272     ];
2273
2274     // Prefer to instantiate BAO's instead of DAO's (when possible)
2275     // so that assignTestValue()/assignTestFK() can be overloaded.
2276     $baoName = str_replace('_DAO_', '_BAO_', $daoName);
2277     if ($baoName === 'CRM_Financial_BAO_FinancialTrxn') {
2278       // OMG OMG OMG this is so incredibly bad. The BAO is insanely named.
2279       // @todo create a new class called what the BAO SHOULD be
2280       // that extends BAO-crazy-name.... migrate.
2281       $baoName = 'CRM_Core_BAO_FinancialTrxn';
2282     }
2283     if (class_exists($baoName)) {
2284       $daoName = $baoName;
2285     }
2286
2287     for ($i = 0; $i < $numObjects; ++$i) {
2288
2289       ++$counter;
2290       /** @var CRM_Core_DAO $object */
2291       $object = new $daoName();
2292
2293       $fields = $object->fields();
2294       foreach ($fields as $fieldName => $fieldDef) {
2295         $dbName = $fieldDef['name'];
2296         $FKClassName = $fieldDef['FKClassName'] ?? NULL;
2297
2298         if (isset($params[$dbName]) && !is_array($params[$dbName])) {
2299           $object->$dbName = $params[$dbName];
2300         }
2301
2302         elseif ($dbName != 'id') {
2303           if ($FKClassName != NULL) {
2304             $object->assignTestFK($fieldName, $fieldDef, $params);
2305             continue;
2306           }
2307           else {
2308             $object->assignTestValue($fieldName, $fieldDef, $counter);
2309           }
2310         }
2311       }
2312
2313       $object->save();
2314
2315       if (!$createOnly) {
2316         $objects[$i] = $object;
2317       }
2318       else {
2319         unset($object);
2320       }
2321     }
2322
2323     if ($createOnly) {
2324       return NULL;
2325     }
2326     elseif ($numObjects == 1) {
2327       return $objects[0];
2328     }
2329     else {
2330       return $objects;
2331     }
2332   }
2333
2334   /**
2335    * Deletes the this object plus any dependent objects that are associated with it.
2336    * ONLY USE FOR TESTING
2337    *
2338    * @param string $daoName
2339    * @param array $params
2340    */
2341   public static function deleteTestObjects($daoName, $params = []) {
2342     //this is a test function  also backtrace is set for the test suite it sometimes unsets itself
2343     // so we re-set here in case
2344     $config = CRM_Core_Config::singleton();
2345     $config->backtrace = TRUE;
2346
2347     $object = new $daoName();
2348     $object->id = $params['id'] ?? NULL;
2349
2350     // array(array(0 => $daoName, 1 => $daoParams))
2351     $deletions = [];
2352     if ($object->find(TRUE)) {
2353
2354       $fields = $object->fields();
2355       foreach ($fields as $name => $value) {
2356
2357         $dbName = $value['name'];
2358
2359         $FKClassName = $value['FKClassName'] ?? NULL;
2360         $required = $value['required'] ?? NULL;
2361         if ($FKClassName != NULL
2362           && $object->$dbName
2363           && !in_array($FKClassName, CRM_Core_DAO::$_testEntitiesToSkip)
2364           && ($required || $dbName == 'contact_id')
2365           //I'm a bit stuck on this one - we might need to change the singleValueAlter so that the entities don't share a contact
2366           // to make this test process pass - line below makes pass for now
2367           && $dbName != 'member_of_contact_id'
2368         ) {
2369           // x
2370           $deletions[] = [$FKClassName, ['id' => $object->$dbName]];
2371         }
2372       }
2373     }
2374
2375     $object->delete();
2376
2377     foreach ($deletions as $deletion) {
2378       CRM_Core_DAO::deleteTestObjects($deletion[0], $deletion[1]);
2379     }
2380   }
2381
2382   /**
2383    * Set defaults when creating new entity.
2384    * (don't call this set defaults as already in use with different signature in some places)
2385    *
2386    * @param array $params
2387    * @param $defaults
2388    */
2389   public static function setCreateDefaults(&$params, $defaults) {
2390     if (!empty($params['id'])) {
2391       return;
2392     }
2393     foreach ($defaults as $key => $value) {
2394       if (!array_key_exists($key, $params) || $params[$key] === NULL) {
2395         $params[$key] = $value;
2396       }
2397     }
2398   }
2399
2400   /**
2401    * @param string $prefix
2402    * @param bool $addRandomString
2403    * @param null $string
2404    *
2405    * @return string
2406    * @deprecated
2407    * @see CRM_Utils_SQL_TempTable
2408    */
2409   public static function createTempTableName($prefix = 'civicrm', $addRandomString = TRUE, $string = NULL) {
2410     CRM_Core_Error::deprecatedFunctionWarning('Use CRM_Utils_SQL_TempTable interface to create temporary tables');
2411     $tableName = $prefix . "_temp";
2412
2413     if ($addRandomString) {
2414       if ($string) {
2415         $tableName .= "_" . $string;
2416       }
2417       else {
2418         $tableName .= "_" . md5(uniqid('', TRUE));
2419       }
2420     }
2421     return $tableName;
2422   }
2423
2424   /**
2425    * @param bool $view
2426    * @param bool $trigger
2427    *
2428    * @return bool
2429    */
2430   public static function checkTriggerViewPermission($view = TRUE, $trigger = TRUE) {
2431     if (\Civi::settings()->get('logging_no_trigger_permission')) {
2432       return TRUE;
2433     }
2434     // test for create view and trigger permissions and if allowed, add the option to go multilingual and logging
2435     $dao = new CRM_Core_DAO();
2436     try {
2437       if ($view) {
2438         $dao->query('CREATE OR REPLACE VIEW civicrm_domain_view AS SELECT * FROM civicrm_domain');
2439         $dao->query('DROP VIEW IF EXISTS civicrm_domain_view');
2440       }
2441
2442       if ($trigger) {
2443         $dao->query('CREATE TRIGGER civicrm_domain_trigger BEFORE INSERT ON civicrm_domain FOR EACH ROW BEGIN END');
2444         $dao->query('DROP TRIGGER IF EXISTS civicrm_domain_trigger');
2445       }
2446     }
2447     catch (Exception $e) {
2448       return FALSE;
2449     }
2450
2451     return TRUE;
2452   }
2453
2454   /**
2455    * @param null $message
2456    * @param bool $printDAO
2457    */
2458   public static function debugPrint($message = NULL, $printDAO = TRUE) {
2459     CRM_Utils_System::xMemory("{$message}: ");
2460
2461     if ($printDAO) {
2462       global $_DB_DATAOBJECT;
2463       $q = [];
2464       foreach (array_keys($_DB_DATAOBJECT['RESULTS']) as $id) {
2465         $q[] = $_DB_DATAOBJECT['RESULTS'][$id]->query;
2466       }
2467       CRM_Core_Error::debug('_DB_DATAOBJECT', $q);
2468     }
2469   }
2470
2471   /**
2472    * Build a list of triggers via hook and add them to (err, reconcile them
2473    * with) the database.
2474    *
2475    * @param string $tableName
2476    *   the specific table requiring a rebuild; or NULL to rebuild all tables.
2477    * @param bool $force
2478    * @deprecated
2479    *
2480    * @see CRM-9716
2481    */
2482   public static function triggerRebuild($tableName = NULL, $force = FALSE) {
2483     Civi::service('sql_triggers')->rebuild($tableName, $force);
2484   }
2485
2486   /**
2487    * Wrapper function to drop triggers.
2488    *
2489    * @param string $tableName
2490    *   the specific table requiring a rebuild; or NULL to rebuild all tables.
2491    * @deprecated
2492    */
2493   public static function dropTriggers($tableName = NULL) {
2494     Civi::service('sql_triggers')->dropTriggers($tableName);
2495   }
2496
2497   /**
2498    * @param array $info
2499    *   per hook_civicrm_triggerInfo.
2500    * @param string $onlyTableName
2501    *   the specific table requiring a rebuild; or NULL to rebuild all tables.
2502    * @deprecated
2503    */
2504   public static function createTriggers(&$info, $onlyTableName = NULL) {
2505     Civi::service('sql_triggers')->createTriggers($info, $onlyTableName);
2506   }
2507
2508   /**
2509    * Given a list of fields, create a list of references.
2510    *
2511    * @param string $className
2512    *   BAO/DAO class name.
2513    * @return array<CRM_Core_Reference_Interface>
2514    */
2515   public static function createReferenceColumns($className) {
2516     $result = [];
2517     $fields = $className::fields();
2518     foreach ($fields as $field) {
2519       if (isset($field['pseudoconstant'], $field['pseudoconstant']['optionGroupName'])) {
2520         $result[] = new CRM_Core_Reference_OptionValue(
2521           $className::getTableName(),
2522           $field['name'],
2523           'civicrm_option_value',
2524           CRM_Utils_Array::value('keyColumn', $field['pseudoconstant'], 'value'),
2525           $field['pseudoconstant']['optionGroupName']
2526         );
2527       }
2528     }
2529     return $result;
2530   }
2531
2532   /**
2533    * Find all records which refer to this entity.
2534    *
2535    * @return CRM_Core_DAO[]
2536    */
2537   public function findReferences() {
2538     $links = self::getReferencesToTable(static::getTableName());
2539
2540     $occurrences = [];
2541     foreach ($links as $refSpec) {
2542       /** @var $refSpec CRM_Core_Reference_Interface */
2543       $daoName = CRM_Core_DAO_AllCoreTables::getClassForTable($refSpec->getReferenceTable());
2544       $result = $refSpec->findReferences($this);
2545       if ($result) {
2546         while ($result->fetch()) {
2547           $obj = new $daoName();
2548           $obj->id = $result->id;
2549           $occurrences[] = $obj;
2550         }
2551       }
2552     }
2553
2554     return $occurrences;
2555   }
2556
2557   /**
2558    * @return array{name: string, type: string, count: int, table: string|null, key: string|null}[]
2559    *   each item has keys:
2560    *   - name: string
2561    *   - type: string
2562    *   - count: int
2563    *   - table: string|null SQL table name
2564    *   - key: string|null SQL column name
2565    */
2566   public function getReferenceCounts() {
2567     $links = self::getReferencesToTable(static::getTableName());
2568
2569     $counts = [];
2570     foreach ($links as $refSpec) {
2571       /** @var $refSpec CRM_Core_Reference_Interface */
2572       $count = $refSpec->getReferenceCount($this);
2573       if (!empty($count['count'])) {
2574         $counts[] = $count;
2575       }
2576     }
2577
2578     foreach (CRM_Core_Component::getEnabledComponents() as $component) {
2579       /** @var $component CRM_Core_Component_Info */
2580       $counts = array_merge($counts, $component->getReferenceCounts($this));
2581     }
2582     CRM_Utils_Hook::referenceCounts($this, $counts);
2583
2584     return $counts;
2585   }
2586
2587   /**
2588    * List all tables which have hard foreign keys to this table.
2589    *
2590    * For now, this returns a description of every entity_id/entity_table
2591    * reference.
2592    * TODO: filter dynamic entity references on the $tableName, based on
2593    * schema metadata in dynamicForeignKey which enumerates a restricted
2594    * set of possible entity_table's.
2595    *
2596    * @param string $tableName
2597    *   Table referred to.
2598    *
2599    * @return CRM_Core_Reference_Interface[]
2600    *   structure of table and column, listing every table with a
2601    *   foreign key reference to $tableName, and the column where the key appears.
2602    */
2603   public static function getReferencesToTable($tableName) {
2604     $refsFound = [];
2605     foreach (CRM_Core_DAO_AllCoreTables::getClasses() as $daoClassName) {
2606       $links = $daoClassName::getReferenceColumns();
2607
2608       foreach ($links as $refSpec) {
2609         /** @var $refSpec CRM_Core_Reference_Interface */
2610         if ($refSpec->matchesTargetTable($tableName)) {
2611           $refsFound[] = $refSpec;
2612         }
2613       }
2614     }
2615     return $refsFound;
2616   }
2617
2618   /**
2619    * Get all references to contact table.
2620    *
2621    * This includes core tables, custom group tables, tables added by the merge
2622    * hook and  the entity_tag table.
2623    *
2624    * Refer to CRM-17454 for information on the danger of querying the information
2625    * schema to derive this.
2626    *
2627    * @throws \CiviCRM_API3_Exception
2628    */
2629   public static function getReferencesToContactTable() {
2630     if (isset(\Civi::$statics[__CLASS__]) && isset(\Civi::$statics[__CLASS__]['contact_references'])) {
2631       return \Civi::$statics[__CLASS__]['contact_references'];
2632     }
2633     $contactReferences = [];
2634     $coreReferences = CRM_Core_DAO::getReferencesToTable('civicrm_contact');
2635     foreach ($coreReferences as $coreReference) {
2636       if (
2637         // Exclude option values
2638         !is_a($coreReference, 'CRM_Core_Reference_Dynamic') &&
2639         // Exclude references to other columns
2640         $coreReference->getTargetKey() === 'id'
2641       ) {
2642         $contactReferences[$coreReference->getReferenceTable()][] = $coreReference->getReferenceKey();
2643       }
2644     }
2645     self::appendCustomTablesExtendingContacts($contactReferences);
2646     self::appendCustomContactReferenceFields($contactReferences);
2647     \Civi::$statics[__CLASS__]['contact_references'] = $contactReferences;
2648     return \Civi::$statics[__CLASS__]['contact_references'];
2649   }
2650
2651   /**
2652    * Get all dynamic references to the given table.
2653    *
2654    * @param string $tableName
2655    *
2656    * @return array
2657    */
2658   public static function getDynamicReferencesToTable($tableName) {
2659     if (!isset(\Civi::$statics[__CLASS__]['contact_references_dynamic'][$tableName])) {
2660       \Civi::$statics[__CLASS__]['contact_references_dynamic'][$tableName] = [];
2661       $coreReferences = CRM_Core_DAO::getReferencesToTable($tableName);
2662       foreach ($coreReferences as $coreReference) {
2663         if ($coreReference instanceof \CRM_Core_Reference_Dynamic) {
2664           \Civi::$statics[__CLASS__]['contact_references_dynamic'][$tableName][$coreReference->getReferenceTable()][] = [$coreReference->getReferenceKey(), $coreReference->getTypeColumn()];
2665         }
2666       }
2667     }
2668     return \Civi::$statics[__CLASS__]['contact_references_dynamic'][$tableName];
2669   }
2670
2671   /**
2672    * Add custom tables that extend contacts to the list of contact references.
2673    *
2674    * CRM_Core_BAO_CustomGroup::getAllCustomGroupsByBaseEntity seems like a safe-ish
2675    * function to be sure all are retrieved & we don't miss subtypes or inactive or multiples
2676    * - the down side is it is not cached.
2677    *
2678    * Further changes should be include tests in the CRM_Core_MergerTest class
2679    * to ensure that disabled, subtype, multiple etc groups are still captured.
2680    *
2681    * @param array $cidRefs
2682    */
2683   public static function appendCustomTablesExtendingContacts(&$cidRefs) {
2684     $customValueTables = CRM_Core_BAO_CustomGroup::getAllCustomGroupsByBaseEntity('Contact');
2685     $customValueTables->find();
2686     while ($customValueTables->fetch()) {
2687       $cidRefs[$customValueTables->table_name][] = 'entity_id';
2688     }
2689   }
2690
2691   /**
2692    * Add custom ContactReference fields to the list of contact references
2693    *
2694    * This includes active and inactive fields/groups
2695    *
2696    * @param array $cidRefs
2697    *
2698    * @throws \CiviCRM_API3_Exception
2699    */
2700   public static function appendCustomContactReferenceFields(&$cidRefs) {
2701     $fields = civicrm_api3('CustomField', 'get', [
2702       'return'    => ['column_name', 'custom_group_id.table_name'],
2703       'data_type' => 'ContactReference',
2704       'options' => ['limit' => 0],
2705     ])['values'];
2706     foreach ($fields as $field) {
2707       $cidRefs[$field['custom_group_id.table_name']][] = $field['column_name'];
2708     }
2709   }
2710
2711   /**
2712    * Lookup the value of a MySQL global configuration variable.
2713    *
2714    * @param string $name
2715    *   E.g. "thread_stack".
2716    * @param mixed $default
2717    * @return mixed
2718    */
2719   public static function getGlobalSetting($name, $default = NULL) {
2720     // Alternatively, SELECT @@GLOBAL.thread_stack, but
2721     // that has been reported to fail under MySQL 5.0 for OS X
2722     $escapedName = self::escapeString($name);
2723     $dao = CRM_Core_DAO::executeQuery("SHOW VARIABLES LIKE '$escapedName'");
2724     if ($dao->fetch()) {
2725       return $dao->Value;
2726     }
2727     else {
2728       return $default;
2729     }
2730   }
2731
2732   /**
2733    * Update the fields array to also hold keys for pseudoconstant fields that relate to contained fields.
2734    *
2735    * This is relevant where we want to offer both the ID field and the label field
2736    * as an option, e.g. search builder.
2737    *
2738    * It is currently limited for optionGroupName & id+ name+ FK combos for purposes keeping the scope of the
2739    * change small, but is appropriate for other sorts of pseudoconstants.
2740    *
2741    * @param array $fields
2742    */
2743   public static function appendPseudoConstantsToFields(&$fields) {
2744     foreach ($fields as $fieldUniqueName => $field) {
2745       if (!empty($field['pseudoconstant'])) {
2746         $pseudoConstant = $field['pseudoconstant'];
2747         if (!empty($pseudoConstant['optionGroupName'])) {
2748           $fields[$pseudoConstant['optionGroupName']] = [
2749             'title' => CRM_Core_BAO_OptionGroup::getTitleByName($pseudoConstant['optionGroupName']),
2750             'name' => $pseudoConstant['optionGroupName'],
2751             'data_type' => CRM_Utils_Type::T_STRING,
2752             'is_pseudofield_for' => $fieldUniqueName,
2753           ];
2754         }
2755         // We restrict to id + name + FK as we are extending this a bit, but cautiously.
2756         elseif (
2757           !empty($field['FKClassName'])
2758           && CRM_Utils_Array::value('keyColumn', $pseudoConstant) === 'id'
2759           && CRM_Utils_Array::value('labelColumn', $pseudoConstant) === 'name'
2760         ) {
2761           $pseudoFieldName = str_replace('_' . $pseudoConstant['keyColumn'], '', $field['name']);
2762           // This if is just an extra caution when adding change.
2763           if (!isset($fields[$pseudoFieldName])) {
2764             $daoName = $field['FKClassName'];
2765             $fkFields = $daoName::fields();
2766             foreach ($fkFields as $fkField) {
2767               if ($fkField['name'] === $pseudoConstant['labelColumn']) {
2768                 $fields[$pseudoFieldName] = [
2769                   'name' => $pseudoFieldName,
2770                   'is_pseudofield_for' => $field['name'],
2771                   'title' => $fkField['title'],
2772                   'data_type' => $fkField['type'],
2773                   'where' => $field['where'],
2774                 ];
2775               }
2776             }
2777           }
2778         }
2779       }
2780     }
2781   }
2782
2783   /**
2784    * Get options for the called BAO object's field.
2785    *
2786    * This function can be overridden by each BAO to add more logic related to context.
2787    * The overriding function will generally call the lower-level CRM_Core_PseudoConstant::get
2788    *
2789    * @param string $fieldName
2790    * @param string $context
2791    * @see CRM_Core_DAO::buildOptionsContext
2792    * @param array $props
2793    *   Raw field values; whatever is known about this bao object.
2794    *
2795    * Note: $props can contain unsanitized input and should not be passed directly to CRM_Core_PseudoConstant::get
2796    *
2797    * @return array|bool
2798    */
2799   public static function buildOptions($fieldName, $context = NULL, $props = []) {
2800     // If a given bao does not override this function
2801     $baoName = get_called_class();
2802     return CRM_Core_PseudoConstant::get($baoName, $fieldName, [], $context);
2803   }
2804
2805   /**
2806    * Populate option labels for this object's fields.
2807    *
2808    * @throws exception if called directly on the base class
2809    */
2810   public function getOptionLabels() {
2811     $fields = $this->fields();
2812     if ($fields === NULL) {
2813       throw new Exception('Cannot call getOptionLabels on CRM_Core_DAO');
2814     }
2815     foreach ($fields as $field) {
2816       $name = $field['name'] ?? NULL;
2817       if ($name && isset($this->$name)) {
2818         $label = CRM_Core_PseudoConstant::getLabel(get_class($this), $name, $this->$name);
2819         if ($label !== FALSE) {
2820           // Append 'label' onto the field name
2821           $labelName = $name . '_label';
2822           $this->$labelName = $label;
2823         }
2824       }
2825     }
2826   }
2827
2828   /**
2829    * Provides documentation and validation for the buildOptions $context param
2830    *
2831    * @param string $context
2832    *
2833    * @throws CRM_Core_Exception
2834    * @return array
2835    */
2836   public static function buildOptionsContext($context = NULL) {
2837     $contexts = [
2838       'get' => "get: all options are returned, even if they are disabled; labels are translated.",
2839       'create' => "create: options are filtered appropriately for the object being created/updated; labels are translated.",
2840       'search' => "search: searchable options are returned; labels are translated.",
2841       'validate' => "validate: all options are returned, even if they are disabled; machine names are used in place of labels.",
2842       'abbreviate' => "abbreviate: enabled options are returned; labels are replaced with abbreviations.",
2843       'match' => "match: enabled options are returned using machine names as keys; labels are translated.",
2844     ];
2845     // Validation: enforce uniformity of this param
2846     if ($context !== NULL && !isset($contexts[$context])) {
2847       throw new CRM_Core_Exception("'$context' is not a valid context for buildOptions.");
2848     }
2849     return $contexts;
2850   }
2851
2852   /**
2853    * @param string $fieldName
2854    * @return bool|array
2855    */
2856   public function getFieldSpec($fieldName) {
2857     $fields = $this->fields();
2858
2859     // Support "unique names" as well as sql names
2860     $fieldKey = $fieldName;
2861     if (empty($fields[$fieldKey])) {
2862       $fieldKeys = $this->fieldKeys();
2863       $fieldKey = $fieldKeys[$fieldName] ?? NULL;
2864     }
2865     // If neither worked then this field doesn't exist. Return false.
2866     if (empty($fields[$fieldKey])) {
2867       return FALSE;
2868     }
2869     return $fields[$fieldKey];
2870   }
2871
2872   /**
2873    * Get SQL where clause for SQL filter syntax input parameters.
2874    *
2875    * SQL version of api function to assign filters to the DAO based on the syntax
2876    * $field => array('IN' => array(4,6,9))
2877    * OR
2878    * $field => array('LIKE' => array('%me%))
2879    * etc
2880    *
2881    * @param string $fieldName
2882    *   Name of fields.
2883    * @param array $filter
2884    *   filter to be applied indexed by operator.
2885    * @param string $type
2886    *   type of field (not actually used - nor in api @todo ).
2887    * @param string $alias
2888    *   alternative field name ('as') @todo- not actually used.
2889    * @param bool $returnSanitisedArray
2890    *   Return a sanitised array instead of a clause.
2891    *   this is primarily so we can add filters @ the api level to the Query object based fields
2892    *
2893    * @throws Exception
2894    *
2895    * @return NULL|string|array
2896    *   a string is returned if $returnSanitisedArray is not set, otherwise and Array or NULL
2897    *   depending on whether it is supported as yet
2898    */
2899   public static function createSQLFilter($fieldName, $filter, $type = NULL, $alias = NULL, $returnSanitisedArray = FALSE) {
2900     foreach ($filter as $operator => $criteria) {
2901       $emojiFilter = CRM_Utils_SQL::handleEmojiInQuery($criteria);
2902       if ($emojiFilter === '0 = 1') {
2903         return $emojiFilter;
2904       }
2905
2906       if (in_array($operator, self::acceptedSQLOperators(), TRUE)) {
2907         switch ($operator) {
2908           // unary operators
2909           case 'IS NULL':
2910           case 'IS NOT NULL':
2911             if (!$returnSanitisedArray) {
2912               return (sprintf('%s %s', $fieldName, $operator));
2913             }
2914             else {
2915               return (sprintf('%s %s ', $fieldName, $operator));
2916             }
2917             break;
2918
2919           // ternary operators
2920           case 'BETWEEN':
2921           case 'NOT BETWEEN':
2922             if ((empty($criteria[0]) && !in_array($criteria[0], ['0', 0]))|| (empty($criteria[1]) &&  !in_array($criteria[1], ['0', 0]))) {
2923               throw new Exception("invalid criteria for $operator");
2924             }
2925             if (!$returnSanitisedArray) {
2926               return (sprintf('%s ' . $operator . ' "%s" AND "%s"', $fieldName, CRM_Core_DAO::escapeString($criteria[0]), CRM_Core_DAO::escapeString($criteria[1])));
2927             }
2928             else {
2929               // not yet implemented (tests required to implement)
2930               return NULL;
2931             }
2932             break;
2933
2934           // n-ary operators
2935           case 'IN':
2936           case 'NOT IN':
2937             if (empty($criteria)) {
2938               throw new Exception("invalid criteria for $operator");
2939             }
2940             $escapedCriteria = array_map([
2941               'CRM_Core_DAO',
2942               'escapeString',
2943             ], $criteria);
2944             if (!$returnSanitisedArray) {
2945               return (sprintf('%s %s ("%s")', $fieldName, $operator, implode('", "', $escapedCriteria)));
2946             }
2947             return $escapedCriteria;
2948
2949           // binary operators
2950
2951           default:
2952             if (!$returnSanitisedArray) {
2953               return (sprintf('%s %s "%s"', $fieldName, $operator, CRM_Core_DAO::escapeString($criteria)));
2954             }
2955             else {
2956               // not yet implemented (tests required to implement)
2957               return NULL;
2958             }
2959         }
2960       }
2961     }
2962   }
2963
2964   /**
2965    * @see http://issues.civicrm.org/jira/browse/CRM-9150
2966    * support for other syntaxes is discussed in ticket but being put off for now
2967    * @return string[]
2968    */
2969   public static function acceptedSQLOperators() {
2970     return [
2971       '=',
2972       '<=',
2973       '>=',
2974       '>',
2975       '<',
2976       'LIKE',
2977       "<>",
2978       "!=",
2979       "NOT LIKE",
2980       'IN',
2981       'NOT IN',
2982       'BETWEEN',
2983       'NOT BETWEEN',
2984       'IS NOT NULL',
2985       'IS NULL',
2986     ];
2987   }
2988
2989   /**
2990    * SQL has a limit of 64 characters on various names:
2991    * table name, trigger name, column name ...
2992    *
2993    * For custom groups and fields we generated names from user entered input
2994    * which can be longer than this length, this function helps with creating
2995    * strings that meet various criteria.
2996    *
2997    * @param string $string
2998    *   The string to be shortened.
2999    * @param int $length
3000    *   The max length of the string.
3001    *
3002    * @param bool $makeRandom
3003    *
3004    * @return string
3005    */
3006   public static function shortenSQLName($string, $length = 60, $makeRandom = FALSE) {
3007     // early return for strings that meet the requirements
3008     if (strlen($string) <= $length) {
3009       return $string;
3010     }
3011
3012     // easy return for calls that dont need a randomized uniq string
3013     if (!$makeRandom) {
3014       return substr($string, 0, $length);
3015     }
3016
3017     // the string is longer than the length and we need a uniq string
3018     // for the same tablename we need the same uniq string every time
3019     // hence we use md5 on the string, which is not random
3020     // we'll append 8 characters to the end of the tableName
3021     $md5string = substr(md5($string), 0, 8);
3022     return substr($string, 0, $length - 8) . "_{$md5string}";
3023   }
3024
3025   /**
3026    * https://issues.civicrm.org/jira/browse/CRM-17748
3027    * Sets the internal options to be used on a query
3028    *
3029    * @param array $options
3030    *
3031    */
3032   public function setOptions($options) {
3033     if (is_array($options)) {
3034       $this->_options = $options;
3035     }
3036   }
3037
3038   /**
3039    * https://issues.civicrm.org/jira/browse/CRM-17748
3040    * wrapper to pass internal DAO options down to DB_mysql/DB_Common level
3041    *
3042    * @param array $options
3043    *
3044    */
3045   protected function _setDBOptions($options) {
3046     global $_DB_DATAOBJECT;
3047
3048     if (is_array($options) && count($options)) {
3049       $conn = &$_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5];
3050       foreach ($options as $option_name => $option_value) {
3051         $conn->setOption($option_name, $option_value);
3052       }
3053     }
3054   }
3055
3056   /**
3057    * @deprecated
3058    * @param array $params
3059    */
3060   public function setApiFilter(&$params) {
3061   }
3062
3063   /**
3064    * Generates acl clauses suitable for adding to WHERE or ON when doing an api.get for this entity
3065    *
3066    * Return format is in the form of fieldname => clauses starting with an operator. e.g.:
3067    * ```
3068    *   array(
3069    *     'location_type_id' => array('IS NOT NULL', 'IN (1,2,3)')
3070    *   )
3071    * ```
3072    *
3073    * Note that all array keys must be actual field names in this entity. Use subqueries to filter on other tables e.g. custom values.
3074    *
3075    * @return array
3076    */
3077   public function addSelectWhereClause() {
3078     $clauses = [];
3079     $fields = $this->fields();
3080     foreach ($fields as $fieldName => $field) {
3081       // Clause for contact-related entities like Email, Relationship, etc.
3082       if (strpos($fieldName, 'contact_id') === 0 && CRM_Utils_Array::value('FKClassName', $field) == 'CRM_Contact_DAO_Contact') {
3083         $clauses[$fieldName] = CRM_Utils_SQL::mergeSubquery('Contact');
3084       }
3085       // Clause for an entity_table/entity_id combo
3086       if ($fieldName === 'entity_id' && isset($fields['entity_table'])) {
3087         $relatedClauses = [];
3088         $relatedEntities = $this->buildOptions('entity_table', 'get');
3089         foreach ((array) $relatedEntities as $table => $ent) {
3090           if (!empty($ent)) {
3091             $ent = CRM_Core_DAO_AllCoreTables::getEntityNameForTable($table);
3092             $subquery = CRM_Utils_SQL::mergeSubquery($ent);
3093             if ($subquery) {
3094               $relatedClauses[] = "(entity_table = '$table' AND entity_id " . implode(' AND entity_id ', $subquery) . ")";
3095             }
3096             else {
3097               $relatedClauses[] = "(entity_table = '$table')";
3098             }
3099           }
3100         }
3101         if ($relatedClauses) {
3102           $clauses['id'] = 'IN (SELECT id FROM `' . $this->tableName() . '` WHERE (' . implode(') OR (', $relatedClauses) . '))';
3103         }
3104       }
3105     }
3106     CRM_Utils_Hook::selectWhereClause($this, $clauses);
3107     return $clauses;
3108   }
3109
3110   /**
3111    * This returns the final permissioned query string for this entity
3112    *
3113    * With acls from related entities + additional clauses from hook_civicrm_selectWhereClause
3114    *
3115    * @param string $tableAlias
3116    * @return array
3117    */
3118   public static function getSelectWhereClause($tableAlias = NULL) {
3119     $bao = new static();
3120     if ($tableAlias === NULL) {
3121       $tableAlias = $bao->tableName();
3122     }
3123     $clauses = [];
3124     foreach ((array) $bao->addSelectWhereClause() as $field => $vals) {
3125       $clauses[$field] = NULL;
3126       if ($vals) {
3127         $clauses[$field] = "(`$tableAlias`.`$field` IS NULL OR (`$tableAlias`.`$field` " . implode(" AND `$tableAlias`.`$field` ", (array) $vals) . '))';
3128       }
3129     }
3130     return $clauses;
3131   }
3132
3133   /**
3134    * ensure database name is 'safe', i.e. only contains word characters (includes underscores)
3135    * and dashes, and contains at least one [a-z] case insensitive.
3136    *
3137    * @param $database
3138    *
3139    * @return bool
3140    */
3141   public static function requireSafeDBName($database) {
3142     $matches = [];
3143     preg_match(
3144       "/^[\w\-]*[a-z]+[\w\-]*$/i",
3145       $database,
3146       $matches
3147     );
3148     if (empty($matches)) {
3149       return FALSE;
3150     }
3151     return TRUE;
3152   }
3153
3154   /**
3155    * Transform an array to a serialized string for database storage.
3156    *
3157    * @param array|null $value
3158    * @param int $serializationType
3159    * @return string|null
3160    *
3161    * @throws \Exception
3162    */
3163   public static function serializeField($value, $serializationType) {
3164     if ($value === NULL) {
3165       return NULL;
3166     }
3167     switch ($serializationType) {
3168       case self::SERIALIZE_SEPARATOR_BOOKEND:
3169         return $value === [] ? '' : CRM_Utils_Array::implodePadded($value);
3170
3171       case self::SERIALIZE_SEPARATOR_TRIMMED:
3172         return is_array($value) ? implode(self::VALUE_SEPARATOR, $value) : $value;
3173
3174       case self::SERIALIZE_JSON:
3175         return is_array($value) ? json_encode($value) : $value;
3176
3177       case self::SERIALIZE_PHP:
3178         return is_array($value) ? serialize($value) : $value;
3179
3180       case self::SERIALIZE_COMMA:
3181         return is_array($value) ? implode(',', $value) : $value;
3182
3183       default:
3184         throw new Exception('Unknown serialization method for field.');
3185     }
3186   }
3187
3188   /**
3189    * Transform a serialized string from the database into an array.
3190    *
3191    * @param string|null $value
3192    * @param $serializationType
3193    *
3194    * @return array|null
3195    * @throws CRM_Core_Exception
3196    */
3197   public static function unSerializeField($value, $serializationType) {
3198     if ($value === NULL) {
3199       return NULL;
3200     }
3201     if ($value === '') {
3202       return [];
3203     }
3204     switch ($serializationType) {
3205       case self::SERIALIZE_SEPARATOR_BOOKEND:
3206         return (array) CRM_Utils_Array::explodePadded($value);
3207
3208       case self::SERIALIZE_SEPARATOR_TRIMMED:
3209         return explode(self::VALUE_SEPARATOR, trim($value));
3210
3211       case self::SERIALIZE_JSON:
3212         return strlen($value) ? json_decode($value, TRUE) : [];
3213
3214       case self::SERIALIZE_PHP:
3215         return strlen($value) ? CRM_Utils_String::unserialize($value) : [];
3216
3217       case self::SERIALIZE_COMMA:
3218         return explode(',', trim(str_replace(', ', '', $value)));
3219
3220       default:
3221         throw new CRM_Core_Exception('Unknown serialization method for field.');
3222     }
3223   }
3224
3225   /**
3226    * @return array
3227    */
3228   public static function getEntityRefFilters() {
3229     return [];
3230   }
3231
3232   /**
3233    * Get exportable fields with pseudoconstants rendered as an extra field.
3234    *
3235    * @param string $baoClass
3236    *
3237    * @return array
3238    */
3239   public static function getExportableFieldsWithPseudoConstants($baoClass) {
3240     if (method_exists($baoClass, 'exportableFields')) {
3241       $fields = $baoClass::exportableFields();
3242     }
3243     else {
3244       $fields = $baoClass::export();
3245     }
3246     CRM_Core_DAO::appendPseudoConstantsToFields($fields);
3247     return $fields;
3248   }
3249
3250   /**
3251    * Remove item from static cache during update/delete operations
3252    */
3253   private function clearDbColumnValueCache() {
3254     $daoName = get_class($this);
3255     while (strpos($daoName, '_BAO_') !== FALSE) {
3256       $daoName = get_parent_class($daoName);
3257     }
3258     if (isset($this->id)) {
3259       unset(self::$_dbColumnValueCache[$daoName]['id'][$this->id]);
3260     }
3261     if (isset($this->name)) {
3262       unset(self::$_dbColumnValueCache[$daoName]['name'][$this->name]);
3263     }
3264   }
3265
3266   /**
3267    * Return a mapping from field-name to the corresponding key (as used in fields()).
3268    *
3269    * @return array
3270    *   Array(string $name => string $uniqueName).
3271    */
3272   public static function fieldKeys() {
3273     return array_flip(CRM_Utils_Array::collect('name', static::fields()));
3274   }
3275
3276   /**
3277    * Returns system paths related to this entity (as defined in the xml schema)
3278    *
3279    * @return array
3280    */
3281   public static function getEntityPaths() {
3282     return static::$_paths ?? [];
3283   }
3284
3285   /**
3286    * When creating a record without a supplied name,
3287    * create a unique, clean name derived from the label.
3288    *
3289    * Note: this function does nothing unless a unique index exists for "name" column.
3290    */
3291   private function makeNameFromLabel() {
3292     $indexNameWith = NULL;
3293     // Look for a unique index which includes the "name" field
3294     if (method_exists($this, 'indices')) {
3295       foreach ($this->indices(FALSE) as $index) {
3296         if (!empty($index['unique']) && in_array('name', $index['field'], TRUE)) {
3297           $indexNameWith = $index['field'];
3298         }
3299       }
3300     }
3301     if (!$indexNameWith) {
3302       // No unique index on "name", do nothing
3303       return;
3304     }
3305     $name = CRM_Utils_String::munge($this->label, '_', 252);
3306
3307     // Find existing records with the same name
3308     $sql = new CRM_Utils_SQL_Select($this::getTableName());
3309     $sql->select(['id', 'name']);
3310     $sql->where('name LIKE @name', ['@name' => $name . '%']);
3311     // Include all fields that are part of the index
3312     foreach (array_diff($indexNameWith, ['name']) as $field) {
3313       $sql->where("`$field` = @val", ['@val' => $this->$field]);
3314     }
3315     $query = $sql->toSQL();
3316     $existing = self::executeQuery($query)->fetchMap('id', 'name');
3317     $dupes = 0;
3318     $suffix = '';
3319     while (in_array($name . $suffix, $existing)) {
3320       $suffix = '_' . (++$dupes);
3321     }
3322     $this->name = $name . $suffix;
3323   }
3324
3325 }