CRM/Contact/Form/DedupeRules.php

   1 <?php
   2 /*
   3  +--------------------------------------------------------------------+
   4  | CiviCRM version 4.7                                                |
   5  +--------------------------------------------------------------------+
   6  | Copyright CiviCRM LLC (c) 2004-2015                                |
   7  +--------------------------------------------------------------------+
   8  | This file is a part of CiviCRM.                                    |
   9  |                                                                    |
  10  | CiviCRM is free software; you can copy, modify, and distribute it  |
  11  | under the terms of the GNU Affero General Public License           |
  12  | Version 3, 19 November 2007 and the CiviCRM Licensing Exception.   |
  13  |                                                                    |
  14  | CiviCRM is distributed in the hope that it will be useful, but     |
  15  | WITHOUT ANY WARRANTY; without even the implied warranty of         |
  16  | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.               |
  17  | See the GNU Affero General Public License for more details.        |
  18  |                                                                    |
  19  | You should have received a copy of the GNU Affero General Public   |
  20  | License and the CiviCRM Licensing Exception along                  |
  21  | with this program; if not, contact CiviCRM LLC                     |
  22  | at info[AT]civicrm[DOT]org. If you have questions about the        |
  23  | GNU Affero General Public License or the licensing of CiviCRM,     |
  24  | see the CiviCRM license FAQ at http://civicrm.org/licensing        |
  25  +--------------------------------------------------------------------+
  26  */
  27
  28 /**
  29  *
  30  * @package CRM
  31  * @copyright CiviCRM LLC (c) 2004-2015
  32  * $Id$
  33  *
  34  */
  35
  36 /**
  37  * This class generates form components for DedupeRules
  38  *
  39  */
  40 class CRM_Contact_Form_DedupeRules extends CRM_Admin_Form {
  41   const RULES_COUNT = 5;
  42   protected $_contactType;
  43   protected $_fields = array();
  44   protected $_rgid;
  45
  46   /**
  47    * Explicitly declare the entity api name.
  48    */
  49   public function getDefaultEntity() {
  50     return 'RuleGroup';
  51   }
  52
  53   /**
  54    * Pre processing.
  55    *
  56    * @return void
  57    */
  58   public function preProcess() {
  59     // Ensure user has permission to be here
  60     if (!CRM_Core_Permission::check('administer dedupe rules')) {
  61       CRM_Utils_System::permissionDenied();
  62       CRM_Utils_System::civiExit();
  63     }
  64     $this->_options = CRM_Core_SelectValues::getDedupeRuleTypes();
  65     $this->_rgid = CRM_Utils_Request::retrieve('id', 'Positive', $this, FALSE, 0);
  66     $this->_contactType = CRM_Utils_Request::retrieve('contact_type', 'String', $this, FALSE, 0);
  67     if ($this->_rgid) {
  68       $rgDao = new CRM_Dedupe_DAO_RuleGroup();
  69       $rgDao->id = $this->_rgid;
  70       $rgDao->find(TRUE);
  71
  72       $this->_defaults['threshold'] = $rgDao->threshold;
  73       $this->_contactType = $rgDao->contact_type;
  74       $this->_defaults['used'] = CRM_Utils_Array::key($rgDao->used, $this->_options);
  75       $this->_defaults['title'] = $rgDao->title;
  76       $this->_defaults['name'] = $rgDao->name;
  77       $this->_defaults['is_reserved'] = $rgDao->is_reserved;
  78       $this->assign('isReserved', $rgDao->is_reserved);
  79       $this->assign('ruleName', $rgDao->name);
  80       $ruleDao = new CRM_Dedupe_DAO_Rule();
  81       $ruleDao->dedupe_rule_group_id = $this->_rgid;
  82       $ruleDao->find();
  83       $count = 0;
  84       while ($ruleDao->fetch()) {
  85         $this->_defaults["where_$count"] = "{$ruleDao->rule_table}.{$ruleDao->rule_field}";
  86         $this->_defaults["length_$count"] = $ruleDao->rule_length;
  87         $this->_defaults["weight_$count"] = $ruleDao->rule_weight;
  88         $count++;
  89       }
  90     }
  91     $supported = CRM_Dedupe_BAO_RuleGroup::supportedFields($this->_contactType);
  92     if (is_array($supported)) {
  93       foreach ($supported as $table => $fields) {
  94         foreach ($fields as $field => $title) {
  95           $this->_fields["$table.$field"] = $title;
  96         }
  97       }
  98     }
  99     asort($this->_fields);
 100   }
 101
 102   /**
 103    * Build the form object.
 104    *
 105    * @return void
 106    */
 107   public function buildQuickForm() {
 108     $this->addField('title', array('label' => ts('Rule Name')), TRUE);
 109     $this->addRule('title', ts('A duplicate matching rule with this name already exists. Please select another name.'),
 110       'objectExists', array('CRM_Dedupe_DAO_RuleGroup', $this->_rgid, 'title')
 111     );
 112
 113     $this->addField('used', array('label' => ts('Usage')), TRUE);
 114     $disabled = array();
 115     $reserved = $this->addField('is_reserved', array('label' => ts('Reserved?')));
 116     if (!empty($this->_defaults['is_reserved'])) {
 117       $reserved->freeze();
 118     }
 119
 120     $attributes = array('class' => 'two');
 121     if (!empty($disabled)) {
 122       $attributes = array_merge($attributes, $disabled);
 123     }
 124
 125     for ($count = 0; $count < self::RULES_COUNT; $count++) {
 126       $this->add('select', "where_$count", ts('Field'),
 127         array(
 128           NULL => ts('- none -'),
 129         ) + $this->_fields, FALSE, $disabled
 130       );
 131       $this->addField("length_$count", array('entity' => 'Rule', 'name' => 'rule_length') + $attributes);
 132       $this->addField("weight_$count", array('entity' => 'Rule', 'name' => 'rule_weight') + $attributes);
 133     }
 134
 135     $this->addField('threshold', array('label' => ts("Weight Threshold to Consider Contacts 'Matching':")) + $attributes);
 136
 137     $this->assign('contact_type', $this->_contactType);
 138
 139     $this->addFormRule(array('CRM_Contact_Form_DedupeRules', 'formRule'), $this);
 140
 141     parent::buildQuickForm();
 142   }
 143
 144   /**
 145    * Global validation rules for the form.
 146    *
 147    * @param array $fields
 148    *   Posted values of the form.
 149    *
 150    * @param $files
 151    * @param $self
 152    *
 153    * @return array
 154    *   list of errors to be posted back to the form
 155    */
 156   public static function formRule($fields, $files, $self) {
 157     $errors = array();
 158     if (!empty($fields['is_reserved'])) {
 159       return TRUE;
 160     }
 161
 162     $fieldSelected = FALSE;
 163     for ($count = 0; $count < self::RULES_COUNT; $count++) {
 164       if (!empty($fields["where_$count"])) {
 165         $fieldSelected = TRUE;
 166         break;
 167       }
 168     }
 169
 170     if (!$fieldSelected) {
 171       $errors['_qf_default'] = ts('Please select at least one field.');
 172     }
 173
 174     return empty($errors) ? TRUE : $errors;
 175   }
 176
 177   /**
 178    * Set default values for the form. MobileProvider that in edit/view mode
 179    * the default values are retrieved from the database
 180    *
 181    *
 182    * @return array
 183    */
 184   /**
 185    * @return array
 186    */
 187   public function setDefaultValues() {
 188     return $this->_defaults;
 189   }
 190
 191   /**
 192    * Process the form submission.
 193    *
 194    *
 195    * @return void
 196    */
 197   public function postProcess() {
 198     $values = $this->exportValues();
 199
 200     //FIXME: Handle logic to replace is_default column by usage
 201     // reset used column to General (since there can only
 202     // be one 'Supervised' or 'Unsupervised' rule)
 203     if ($values['used'] != 'General') {
 204       $query = "
 205 UPDATE civicrm_dedupe_rule_group
 206    SET used = 'General'
 207  WHERE contact_type = %1
 208    AND used = %2";
 209       $queryParams = array(
 210         1 => array($this->_contactType, 'String'),
 211         2 => array($values['used'], 'String'),
 212       );
 213
 214       CRM_Core_DAO::executeQuery($query, $queryParams);
 215     }
 216
 217     $rgDao = new CRM_Dedupe_DAO_RuleGroup();
 218     if ($this->_action & CRM_Core_Action::UPDATE) {
 219       $rgDao->id = $this->_rgid;
 220     }
 221
 222     $rgDao->title = $values['title'];
 223     $rgDao->is_reserved = CRM_Utils_Array::value('is_reserved', $values, FALSE);
 224     $rgDao->used = $values['used'];
 225     $rgDao->contact_type = $this->_contactType;
 226     $rgDao->threshold = $values['threshold'];
 227     $rgDao->save();
 228
 229     // make sure name is set only during insert
 230     if ($this->_action & CRM_Core_Action::ADD) {
 231       // generate name based on title
 232       $rgDao->name = CRM_Utils_String::titleToVar($values['title']) . "_{$rgDao->id}";
 233       $rgDao->save();
 234     }
 235
 236     // lets skip updating of fields for reserved dedupe group
 237     if ($rgDao->is_reserved) {
 238       CRM_Core_Session::setStatus(ts("The rule '%1' has been saved.", array(1 => $rgDao->title)), ts('Saved'), 'success');
 239       return;
 240     }
 241
 242     $ruleDao = new CRM_Dedupe_DAO_Rule();
 243     $ruleDao->dedupe_rule_group_id = $rgDao->id;
 244     $ruleDao->delete();
 245     $ruleDao->free();
 246
 247     $substrLenghts = array();
 248
 249     $tables = array();
 250     $daoObj = new CRM_Core_DAO();
 251     $database = $daoObj->database();
 252     for ($count = 0; $count < self::RULES_COUNT; $count++) {
 253       if (empty($values["where_$count"])) {
 254         continue;
 255       }
 256       list($table, $field) = explode('.', CRM_Utils_Array::value("where_$count", $values));
 257       $length = !empty($values["length_$count"]) ? CRM_Utils_Array::value("length_$count", $values) : NULL;
 258       $weight = $values["weight_$count"];
 259       if ($table and $field) {
 260         $ruleDao = new CRM_Dedupe_DAO_Rule();
 261         $ruleDao->dedupe_rule_group_id = $rgDao->id;
 262         $ruleDao->rule_table = $table;
 263         $ruleDao->rule_field = $field;
 264         $ruleDao->rule_length = $length;
 265         $ruleDao->rule_weight = $weight;
 266         $ruleDao->save();
 267         $ruleDao->free();
 268
 269         if (!array_key_exists($table, $tables)) {
 270           $tables[$table] = array();
 271         }
 272         $tables[$table][] = $field;
 273       }
 274
 275       // CRM-6245: we must pass table/field/length triples to the createIndexes() call below
 276       if ($length) {
 277         if (!isset($substrLenghts[$table])) {
 278           $substrLenghts[$table] = array();
 279         }
 280
 281         //CRM-13417 to avoid fatal error "Incorrect prefix key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't support unique prefix keys, 1089"
 282         $schemaQuery = "SELECT * FROM INFORMATION_SCHEMA.COLUMNS
 283           WHERE TABLE_SCHEMA = '{$database}' AND
 284           TABLE_NAME = '{$table}' AND COLUMN_NAME = '{$field}';";
 285         $dao = CRM_Core_DAO::executeQuery($schemaQuery);
 286
 287         if ($dao->fetch()) {
 288           // set the length to null for all the fields where prefix length is not supported. eg. int,tinyint,date,enum etc dataTypes.
 289           if ($dao->COLUMN_NAME == $field && !in_array($dao->DATA_TYPE, array(
 290                 'char',
 291                 'varchar',
 292                 'binary',
 293                 'varbinary',
 294                 'text',
 295                 'blob',
 296               ))
 297           ) {
 298             $length = NULL;
 299           }
 300           elseif ($dao->COLUMN_NAME == $field && !empty($dao->CHARACTER_MAXIMUM_LENGTH) && ($length > $dao->CHARACTER_MAXIMUM_LENGTH)) {
 301             //set the length to CHARACTER_MAXIMUM_LENGTH in case the length provided by the user is greater than the limit
 302             $length = $dao->CHARACTER_MAXIMUM_LENGTH;
 303           }
 304         }
 305         $substrLenghts[$table][$field] = $length;
 306       }
 307     }
 308
 309     // also create an index for this dedupe rule
 310     // CRM-3837
 311     CRM_Utils_Hook::dupeQuery($ruleDao, 'dedupeIndexes', $tables);
 312     CRM_Core_BAO_SchemaHandler::createIndexes($tables, 'dedupe_index', $substrLenghts);
 313
 314     //need to clear cache of deduped contacts
 315     //based on the previous rule
 316     $cacheKey = "merge {$this->_contactType}_{$this->_rgid}_%";
 317
 318     CRM_Core_BAO_PrevNextCache::deleteItem(NULL, $cacheKey);
 319
 320     CRM_Core_Session::setStatus(ts("The rule '%1' has been saved.", array(1 => $rgDao->title)), ts('Saved'), 'success');
 321   }
 322
 323 }