CRM/Core/Form.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  * This is our base form. It is part of the Form/Controller/StateMachine
  14  * trifecta. Each form is associated with a specific state in the state
  15  * machine. Each form can also operate in various modes
  16  *
  17  * @package CRM
  18  * @copyright CiviCRM LLC https://civicrm.org/licensing
  19  */
  20
  21 require_once 'HTML/QuickForm/Page.php';
  22
  23 /**
  24  * Class CRM_Core_Form
  25  */
  26 class CRM_Core_Form extends HTML_QuickForm_Page {
  27
  28   /**
  29    * The state object that this form belongs to
  30    * @var object
  31    */
  32   protected $_state;
  33
  34   /**
  35    * The name of this form
  36    * @var string
  37    */
  38   protected $_name;
  39
  40   /**
  41    * The title of this form
  42    * @var string
  43    */
  44   protected $_title = NULL;
  45
  46   /**
  47    * The default values for the form.
  48    *
  49    * @var array
  50    */
  51   public $_defaults = [];
  52
  53   /**
  54    * (QUASI-PROTECTED) The options passed into this form
  55    *
  56    * This field should marked `protected` and is not generally
  57    * intended for external callers, but some edge-cases do use it.
  58    *
  59    * @var mixed
  60    */
  61   public $_options = NULL;
  62
  63   /**
  64    * (QUASI-PROTECTED) The mode of operation for this form
  65    *
  66    * This field should marked `protected` and is not generally
  67    * intended for external callers, but some edge-cases do use it.
  68    *
  69    * @var int
  70    */
  71   public $_action;
  72
  73   /**
  74    * Available payment processors.
  75    *
  76    * As part of trying to consolidate various payment pages we store processors here & have functions
  77    * at this level to manage them.
  78    *
  79    * @var array
  80    *   An array of payment processor details with objects loaded in the 'object' field.
  81    */
  82   protected $_paymentProcessors;
  83
  84   /**
  85    * Available payment processors (IDS).
  86    *
  87    * As part of trying to consolidate various payment pages we store processors here & have functions
  88    * at this level to manage them. An alternative would be to have a separate Form that is inherited
  89    * by all forms that allow payment processing.
  90    *
  91    * @var array
  92    *   An array of the IDS available on this form.
  93    */
  94   public $_paymentProcessorIDs;
  95
  96   /**
  97    * Default or selected processor id.
  98    *
  99    * As part of trying to consolidate various payment pages we store processors here & have functions
 100    * at this level to manage them. An alternative would be to have a separate Form that is inherited
 101    * by all forms that allow payment processing.
 102    *
 103    * @var int
 104    */
 105   protected $_paymentProcessorID;
 106
 107   /**
 108    * Is pay later enabled for the form.
 109    *
 110    * As part of trying to consolidate various payment pages we store processors here & have functions
 111    * at this level to manage them. An alternative would be to have a separate Form that is inherited
 112    * by all forms that allow payment processing.
 113    *
 114    * @var int
 115    */
 116   protected $_is_pay_later_enabled;
 117
 118   /**
 119    * The renderer used for this form
 120    *
 121    * @var object
 122    */
 123   protected $_renderer;
 124
 125   /**
 126    * An array to hold a list of datefields on the form
 127    * so that they can be converted to ISO in a consistent manner
 128    *
 129    * @var array
 130    *
 131    * e.g on a form declare $_dateFields = array(
 132    *  'receive_date' => array('default' => 'now'),
 133    *  );
 134    *  then in postProcess call $this->convertDateFieldsToMySQL($formValues)
 135    *  to have the time field re-incorporated into the field & 'now' set if
 136    *  no value has been passed in
 137    */
 138   protected $_dateFields = [];
 139
 140   /**
 141    * Cache the smarty template for efficiency reasons
 142    *
 143    * @var CRM_Core_Smarty
 144    */
 145   static protected $_template;
 146
 147   /**
 148    *  Indicate if this form should warn users of unsaved changes
 149    * @var bool
 150    */
 151   protected $unsavedChangesWarn;
 152
 153   /**
 154    * What to return to the client if in ajax mode (snippet=json)
 155    *
 156    * @var array
 157    */
 158   public $ajaxResponse = [];
 159
 160   /**
 161    * Url path used to reach this page
 162    *
 163    * @var array
 164    */
 165   public $urlPath = [];
 166
 167   /**
 168    * Context of the form being loaded.
 169    *
 170    * 'event' or null
 171    *
 172    * @var string
 173    */
 174   protected $context;
 175
 176   /**
 177    * @var bool
 178    */
 179   public $submitOnce = FALSE;
 180
 181   /**
 182    * @return string
 183    */
 184   public function getContext() {
 185     return $this->context;
 186   }
 187
 188   /**
 189    * Set context variable.
 190    */
 191   public function setContext() {
 192     $this->context = CRM_Utils_Request::retrieve('context', 'Alphanumeric', $this);
 193   }
 194
 195   /**
 196    * @var CRM_Core_Controller
 197    */
 198   public $controller;
 199
 200   /**
 201    * Constants for attributes for various form elements
 202    * attempt to standardize on the number of variations that we
 203    * use of the below form elements
 204    *
 205    * @var const string
 206    */
 207   const ATTR_SPACING = '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;';
 208
 209   /**
 210    * All checkboxes are defined with a common prefix. This allows us to
 211    * have the same javascript to check / clear all the checkboxes etc
 212    * If u have multiple groups of checkboxes, you will need to give them different
 213    * ids to avoid potential name collision
 214    *
 215    * @var string|int
 216    */
 217   const CB_PREFIX = 'mark_x_', CB_PREFIY = 'mark_y_', CB_PREFIZ = 'mark_z_', CB_PREFIX_LEN = 7;
 218
 219   /**
 220    * @var array
 221    * @internal to keep track of chain-select fields
 222    */
 223   private $_chainSelectFields = [];
 224
 225   /**
 226    * Extra input types we support via the "add" method
 227    * @var array
 228    */
 229   public static $html5Types = [
 230     'number',
 231     'url',
 232     'email',
 233     'color',
 234   ];
 235
 236   /**
 237    * Constructor for the basic form page.
 238    *
 239    * We should not use QuickForm directly. This class provides a lot
 240    * of default convenient functions, rules and buttons
 241    *
 242    * @param object $state
 243    *   State associated with this form.
 244    * @param \const|\enum|int $action The mode the form is operating in (None/Create/View/Update/Delete)
 245    * @param string $method
 246    *   The type of http method used (GET/POST).
 247    * @param string $name
 248    *   The name of the form if different from class name.
 249    *
 250    * @return \CRM_Core_Form
 251    */
 252   public function __construct(
 253     $state = NULL,
 254     $action = CRM_Core_Action::NONE,
 255     $method = 'post',
 256     $name = NULL
 257   ) {
 258
 259     if ($name) {
 260       $this->_name = $name;
 261     }
 262     else {
 263       // CRM-15153 - FIXME this name translates to a DOM id and is not always unique!
 264       $this->_name = CRM_Utils_String::getClassName(CRM_Utils_System::getClassName($this));
 265     }
 266
 267     parent::__construct($this->_name, $method);
 268
 269     $this->_state =& $state;
 270     if ($this->_state) {
 271       $this->_state->setName($this->_name);
 272     }
 273     $this->_action = (int) $action;
 274
 275     $this->registerRules();
 276
 277     // let the constructor initialize this, should happen only once
 278     if (!isset(self::$_template)) {
 279       self::$_template = CRM_Core_Smarty::singleton();
 280     }
 281     // Workaround for CRM-15153 - give each form a reasonably unique css class
 282     $this->addClass(CRM_Utils_System::getClassName($this));
 283
 284     $this->assign('snippet', CRM_Utils_Array::value('snippet', $_GET));
 285     $this->setTranslatedFields();
 286   }
 287
 288   /**
 289    * Set translated fields.
 290    *
 291    * This function is called from the class constructor, allowing us to set
 292    * fields on the class that can't be set as properties due to need for
 293    * translation or other non-input specific handling.
 294    */
 295   protected function setTranslatedFields() {}
 296
 297   /**
 298    * Add one or more css classes to the form.
 299    *
 300    * @param string $className
 301    */
 302   public function addClass($className) {
 303     $classes = $this->getAttribute('class');
 304     $this->setAttribute('class', ($classes ? "$classes " : '') . $className);
 305   }
 306
 307   /**
 308    * Register all the standard rules that most forms potentially use.
 309    */
 310   public function registerRules() {
 311     static $rules = [
 312       'title',
 313       'longTitle',
 314       'variable',
 315       'qfVariable',
 316       'phone',
 317       'integer',
 318       'query',
 319       'url',
 320       'wikiURL',
 321       'domain',
 322       'numberOfDigit',
 323       'date',
 324       'currentDate',
 325       'asciiFile',
 326       'htmlFile',
 327       'utf8File',
 328       'objectExists',
 329       'optionExists',
 330       'postalCode',
 331       'money',
 332       'positiveInteger',
 333       'xssString',
 334       'fileExists',
 335       'settingPath',
 336       'autocomplete',
 337       'validContact',
 338     ];
 339
 340     foreach ($rules as $rule) {
 341       $this->registerRule($rule, 'callback', $rule, 'CRM_Utils_Rule');
 342     }
 343   }
 344
 345   /**
 346    * Simple easy to use wrapper around addElement.
 347    *
 348    * Deal with simple validation rules.
 349    *
 350    * @param string $type
 351    * @param string $name
 352    * @param string $label
 353    * @param string|array $attributes (options for select elements)
 354    * @param bool $required
 355    * @param array $extra
 356    *   (attributes for select elements).
 357    *   For datepicker elements this is consistent with the data
 358    *   from CRM_Utils_Date::getDatePickerExtra
 359    *
 360    * @return HTML_QuickForm_Element
 361    *   Could be an error object
 362    */
 363   public function &add(
 364     $type, $name, $label = '',
 365     $attributes = '', $required = FALSE, $extra = NULL
 366   ) {
 367     // Fudge some extra types that quickform doesn't support
 368     $inputType = $type;
 369     if ($type == 'wysiwyg' || in_array($type, self::$html5Types)) {
 370       $attributes = ($attributes ? $attributes : []) + ['class' => ''];
 371       $attributes['class'] = ltrim($attributes['class'] . " crm-form-$type");
 372       if ($type == 'wysiwyg' && isset($attributes['preset'])) {
 373         $attributes['data-preset'] = $attributes['preset'];
 374         unset($attributes['preset']);
 375       }
 376       $type = $type == 'wysiwyg' ? 'textarea' : 'text';
 377     }
 378     // Like select but accepts rich array data (with nesting, colors, icons, etc) as option list.
 379     if ($inputType == 'select2') {
 380       $type = 'text';
 381       $options = $attributes;
 382       $attributes = ($extra ? $extra : []) + ['class' => ''];
 383       $attributes['class'] = ltrim($attributes['class'] . " crm-select2 crm-form-select2");
 384       $attributes['data-select-params'] = json_encode(['data' => $options, 'multiple' => !empty($attributes['multiple'])]);
 385       unset($attributes['multiple']);
 386       $extra = NULL;
 387     }
 388     // @see http://wiki.civicrm.org/confluence/display/CRMDOC/crmDatepicker
 389     if ($type == 'datepicker') {
 390       $attributes = ($attributes ? $attributes : []);
 391       $attributes['data-crm-datepicker'] = json_encode((array) $extra);
 392       if (!empty($attributes['aria-label']) || $label) {
 393         $attributes['aria-label'] = CRM_Utils_Array::value('aria-label', $attributes, $label);
 394       }
 395       $type = "text";
 396     }
 397     if ($type == 'select' && is_array($extra)) {
 398       // Normalize this property
 399       if (!empty($extra['multiple'])) {
 400         $extra['multiple'] = 'multiple';
 401       }
 402       else {
 403         unset($extra['multiple']);
 404       }
 405       unset($extra['size'], $extra['maxlength']);
 406       // Add placeholder option for select
 407       if (isset($extra['placeholder'])) {
 408         if ($extra['placeholder'] === TRUE) {
 409           $extra['placeholder'] = $required ? ts('- select -') : ts('- none -');
 410         }
 411         if (($extra['placeholder'] || $extra['placeholder'] === '') && empty($extra['multiple']) && is_array($attributes) && !isset($attributes[''])) {
 412           $attributes = ['' => $extra['placeholder']] + $attributes;
 413         }
 414       }
 415     }
 416     $element = $this->addElement($type, $name, $label, $attributes, $extra);
 417     if (HTML_QuickForm::isError($element)) {
 418       CRM_Core_Error::fatal(HTML_QuickForm::errorMessage($element));
 419     }
 420
 421     if ($inputType == 'color') {
 422       $this->addRule($name, ts('%1 must contain a color value e.g. #ffffff.', [1 => $label]), 'regex', '/#[0-9a-fA-F]{6}/');
 423     }
 424
 425     if ($required) {
 426       if ($type == 'file') {
 427         $error = $this->addRule($name, ts('%1 is a required field.', [1 => $label]), 'uploadedfile');
 428       }
 429       else {
 430         $error = $this->addRule($name, ts('%1 is a required field.', [1 => $label]), 'required');
 431       }
 432       if (HTML_QuickForm::isError($error)) {
 433         CRM_Core_Error::fatal(HTML_QuickForm::errorMessage($element));
 434       }
 435     }
 436
 437     // Add context for the editing of option groups
 438     if (isset($extra['option_context'])) {
 439       $context = json_encode($extra['option_context']);
 440       $element->setAttribute('data-option-edit-context', $context);
 441     }
 442
 443     return $element;
 444   }
 445
 446   /**
 447    * Preprocess form.
 448    *
 449    * This is called before buildForm. Any pre-processing that
 450    * needs to be done for buildForm should be done here.
 451    *
 452    * This is a virtual function and should be redefined if needed.
 453    */
 454   public function preProcess() {
 455   }
 456
 457   /**
 458    * Called after the form is validated.
 459    *
 460    * Any processing of form state etc should be done in this function.
 461    * Typically all processing associated with a form should be done
 462    * here and relevant state should be stored in the session
 463    *
 464    * This is a virtual function and should be redefined if needed
 465    */
 466   public function postProcess() {
 467   }
 468
 469   /**
 470    * Main process wrapper.
 471    *
 472    * Implemented so that we can call all the hook functions.
 473    *
 474    * @param bool $allowAjax
 475    *   FIXME: This feels kind of hackish, ideally we would take the json-related code from this function.
 476    *                          and bury it deeper down in the controller
 477    */
 478   public function mainProcess($allowAjax = TRUE) {
 479     $this->postProcess();
 480     $this->postProcessHook();
 481
 482     // Respond with JSON if in AJAX context (also support legacy value '6')
 483     if ($allowAjax && !empty($_REQUEST['snippet']) && in_array($_REQUEST['snippet'], [
 484       CRM_Core_Smarty::PRINT_JSON,
 485       6,
 486     ])) {
 487       $this->ajaxResponse['buttonName'] = str_replace('_qf_' . $this->getAttribute('id') . '_', '', $this->controller->getButtonName());
 488       $this->ajaxResponse['action'] = $this->_action;
 489       if (isset($this->_id) || isset($this->id)) {
 490         $this->ajaxResponse['id'] = $this->id ?? $this->_id;
 491       }
 492       CRM_Core_Page_AJAX::returnJsonResponse($this->ajaxResponse);
 493     }
 494   }
 495
 496   /**
 497    * The postProcess hook is typically called by the framework.
 498    *
 499    * However in a few cases, the form exits or redirects early in which
 500    * case it needs to call this function so other modules can do the needful
 501    * Calling this function directly should be avoided if possible. In general a
 502    * better way is to do setUserContext so the framework does the redirect
 503    */
 504   public function postProcessHook() {
 505     CRM_Utils_Hook::postProcess(get_class($this), $this);
 506   }
 507
 508   /**
 509    * This virtual function is used to build the form.
 510    *
 511    * It replaces the buildForm associated with QuickForm_Page. This allows us to put
 512    * preProcess in front of the actual form building routine
 513    */
 514   public function buildQuickForm() {
 515   }
 516
 517   /**
 518    * This virtual function is used to set the default values of various form elements.
 519    *
 520    * @return array|NULL
 521    *   reference to the array of default values
 522    */
 523   public function setDefaultValues() {
 524     return NULL;
 525   }
 526
 527   /**
 528    * This is a virtual function that adds group and global rules to the form.
 529    *
 530    * Keeping it distinct from the form to keep code small
 531    * and localized in the form building code
 532    */
 533   public function addRules() {
 534   }
 535
 536   /**
 537    * Performs the server side validation.
 538    * @since     1.0
 539    * @return bool
 540    *   true if no error found
 541    * @throws    HTML_QuickForm_Error
 542    */
 543   public function validate() {
 544     $error = parent::validate();
 545
 546     $this->validateChainSelectFields();
 547
 548     $hookErrors = [];
 549
 550     CRM_Utils_Hook::validateForm(
 551       get_class($this),
 552       $this->_submitValues,
 553       $this->_submitFiles,
 554       $this,
 555       $hookErrors
 556     );
 557
 558     if (!empty($hookErrors)) {
 559       $this->_errors += $hookErrors;
 560     }
 561
 562     return (0 == count($this->_errors));
 563   }
 564
 565   /**
 566    * Core function that builds the form.
 567    *
 568    * We redefine this function here and expect all CRM forms to build their form in the function
 569    * buildQuickForm.
 570    */
 571   public function buildForm() {
 572     $this->_formBuilt = TRUE;
 573
 574     $this->preProcess();
 575
 576     CRM_Utils_Hook::preProcess(get_class($this), $this);
 577
 578     $this->assign('translatePermission', CRM_Core_Permission::check('translate CiviCRM'));
 579
 580     if (
 581       $this->controller->_key &&
 582       $this->controller->_generateQFKey
 583     ) {
 584       $this->addElement('hidden', 'qfKey', $this->controller->_key);
 585       $this->assign('qfKey', $this->controller->_key);
 586
 587     }
 588
 589     // _generateQFKey suppresses the qfKey generation on form snippets that
 590     // are part of other forms, hence we use that to avoid adding entryURL
 591     if ($this->controller->_generateQFKey && $this->controller->_entryURL) {
 592       $this->addElement('hidden', 'entryURL', $this->controller->_entryURL);
 593     }
 594
 595     $this->buildQuickForm();
 596
 597     $defaults = $this->setDefaultValues();
 598     unset($defaults['qfKey']);
 599
 600     if (!empty($defaults)) {
 601       $this->setDefaults($defaults);
 602     }
 603
 604     // call the form hook
 605     // also call the hook function so any modules can set their own custom defaults
 606     // the user can do both the form and set default values with this hook
 607     CRM_Utils_Hook::buildForm(get_class($this), $this);
 608
 609     $this->addRules();
 610
 611     //Set html data-attribute to enable warning user of unsaved changes
 612     if ($this->unsavedChangesWarn === TRUE
 613       || (!isset($this->unsavedChangesWarn)
 614         && ($this->_action & CRM_Core_Action::ADD || $this->_action & CRM_Core_Action::UPDATE)
 615       )
 616     ) {
 617       $this->setAttribute('data-warn-changes', 'true');
 618     }
 619
 620     if ($this->submitOnce) {
 621       $this->setAttribute('data-submit-once', 'true');
 622     }
 623   }
 624
 625   /**
 626    * Add default Next / Back buttons.
 627    *
 628    * @param array $params
 629    *   Array of associative arrays in the order in which the buttons should be
 630    *   displayed. The associate array has 3 fields: 'type', 'name' and 'isDefault'
 631    *   The base form class will define a bunch of static arrays for commonly used
 632    *   formats.
 633    */
 634   public function addButtons($params) {
 635     $prevnext = $spacing = [];
 636     foreach ($params as $button) {
 637       if (!empty($button['submitOnce'])) {
 638         $this->submitOnce = TRUE;
 639       }
 640
 641       $attrs = ['class' => 'crm-form-submit'] + (array) CRM_Utils_Array::value('js', $button);
 642
 643       if (!empty($button['class'])) {
 644         $attrs['class'] .= ' ' . $button['class'];
 645       }
 646
 647       if (!empty($button['isDefault'])) {
 648         $attrs['class'] .= ' default';
 649       }
 650
 651       if (in_array($button['type'], ['upload', 'next', 'submit', 'done', 'process', 'refresh'])) {
 652         $attrs['class'] .= ' validate';
 653         $defaultIcon = 'fa-check';
 654       }
 655       else {
 656         $attrs['class'] .= ' cancel';
 657         $defaultIcon = $button['type'] == 'back' ? 'fa-chevron-left' : 'fa-times';
 658       }
 659
 660       if ($button['type'] === 'reset') {
 661         $prevnext[] = $this->createElement($button['type'], 'reset', $button['name'], $attrs);
 662       }
 663       else {
 664         if (!empty($button['subName'])) {
 665           if ($button['subName'] == 'new') {
 666             $defaultIcon = 'fa-plus-circle';
 667           }
 668           if ($button['subName'] == 'done') {
 669             $defaultIcon = 'fa-check-circle';
 670           }
 671           if ($button['subName'] == 'next') {
 672             $defaultIcon = 'fa-chevron-right';
 673           }
 674         }
 675
 676         if (in_array($button['type'], ['next', 'upload', 'done']) && $button['name'] === ts('Save')) {
 677           $attrs['accesskey'] = 'S';
 678         }
 679         $icon = CRM_Utils_Array::value('icon', $button, $defaultIcon);
 680         if ($icon) {
 681           $attrs['crm-icon'] = $icon;
 682         }
 683         $buttonName = $this->getButtonName($button['type'], CRM_Utils_Array::value('subName', $button));
 684         $prevnext[] = $this->createElement('submit', $buttonName, $button['name'], $attrs);
 685       }
 686       if (!empty($button['isDefault'])) {
 687         $this->setDefaultAction($button['type']);
 688       }
 689
 690       // if button type is upload, set the enctype
 691       if ($button['type'] == 'upload') {
 692         $this->updateAttributes(['enctype' => 'multipart/form-data']);
 693         $this->setMaxFileSize();
 694       }
 695
 696       // hack - addGroup uses an array to express variable spacing, read from the last element
 697       $spacing[] = CRM_Utils_Array::value('spacing', $button, self::ATTR_SPACING);
 698     }
 699     $this->addGroup($prevnext, 'buttons', '', $spacing, FALSE);
 700   }
 701
 702   /**
 703    * Getter function for Name.
 704    *
 705    * @return string
 706    */
 707   public function getName() {
 708     return $this->_name;
 709   }
 710
 711   /**
 712    * Getter function for State.
 713    *
 714    * @return object
 715    */
 716   public function &getState() {
 717     return $this->_state;
 718   }
 719
 720   /**
 721    * Getter function for StateType.
 722    *
 723    * @return int
 724    */
 725   public function getStateType() {
 726     return $this->_state->getType();
 727   }
 728
 729   /**
 730    * Getter function for title.
 731    *
 732    * Should be over-ridden by derived class.
 733    *
 734    * @return string
 735    */
 736   public function getTitle() {
 737     return $this->_title ? $this->_title : ts('ERROR: Title is not Set');
 738   }
 739
 740   /**
 741    * Setter function for title.
 742    *
 743    * @param string $title
 744    *   The title of the form.
 745    */
 746   public function setTitle($title) {
 747     $this->_title = $title;
 748     CRM_Utils_System::setTitle($title);
 749   }
 750
 751   /**
 752    * Assign billing type id to bltID.
 753    *
 754    * @throws CRM_Core_Exception
 755    */
 756   public function assignBillingType() {
 757     $this->_bltID = CRM_Core_BAO_LocationType::getBilling();
 758     $this->set('bltID', $this->_bltID);
 759     $this->assign('bltID', $this->_bltID);
 760   }
 761
 762   /**
 763    * @return int
 764    */
 765   public function getPaymentProcessorID() {
 766     return $this->_paymentProcessorID;
 767   }
 768
 769   /**
 770    * This if a front end form function for setting the payment processor.
 771    *
 772    * It would be good to sync it with the back-end function on abstractEditPayment & use one everywhere.
 773    *
 774    * @param bool $isPayLaterEnabled
 775    *
 776    * @throws \CRM_Core_Exception
 777    */
 778   protected function assignPaymentProcessor($isPayLaterEnabled) {
 779     $this->_paymentProcessors = CRM_Financial_BAO_PaymentProcessor::getPaymentProcessors([ucfirst($this->_mode) . 'Mode'], $this->_paymentProcessorIDs);
 780     if ($isPayLaterEnabled) {
 781       $this->_paymentProcessors[0] = CRM_Financial_BAO_PaymentProcessor::getPayment(0);
 782     }
 783
 784     if (!empty($this->_paymentProcessors)) {
 785       foreach ($this->_paymentProcessors as $paymentProcessorID => $paymentProcessorDetail) {
 786         if (empty($this->_paymentProcessor) && $paymentProcessorDetail['is_default'] == 1 || (count($this->_paymentProcessors) == 1)
 787         ) {
 788           $this->_paymentProcessor = $paymentProcessorDetail;
 789           $this->assign('paymentProcessor', $this->_paymentProcessor);
 790           // Setting this is a bit of a legacy overhang.
 791           $this->_paymentObject = $paymentProcessorDetail['object'];
 792         }
 793       }
 794       // It's not clear why we set this on the form.
 795       $this->set('paymentProcessors', $this->_paymentProcessors);
 796     }
 797     else {
 798       throw new CRM_Core_Exception(ts('A payment processor configured for this page might be disabled (contact the site administrator for assistance).'));
 799     }
 800
 801   }
 802
 803   /**
 804    * Format the fields in $this->_params for the payment processor.
 805    *
 806    * In order to pass fields to the payment processor in a consistent way we add some renamed
 807    * parameters.
 808    *
 809    * @param array $fields
 810    *
 811    * @return array
 812    */
 813   protected function formatParamsForPaymentProcessor($fields) {
 814     $this->_params = $this->prepareParamsForPaymentProcessor($this->_params);
 815     $fields = array_merge($fields, ['first_name' => 1, 'middle_name' => 1, 'last_name' => 1]);
 816     return $fields;
 817   }
 818
 819   /**
 820    * Format the fields in $params for the payment processor.
 821    *
 822    * In order to pass fields to the payment processor in a consistent way we add some renamed
 823    * parameters.
 824    *
 825    * @param array $params Payment processor params
 826    *
 827    * @return array $params
 828    */
 829   protected function prepareParamsForPaymentProcessor($params) {
 830     // also add location name to the array
 831     $params["address_name-{$this->_bltID}"] = CRM_Utils_Array::value('billing_first_name', $params) . ' ' . CRM_Utils_Array::value('billing_middle_name', $params) . ' ' . CRM_Utils_Array::value('billing_last_name', $params);
 832     $params["address_name-{$this->_bltID}"] = trim($params["address_name-{$this->_bltID}"]);
 833     // Add additional parameters that the payment processors are used to receiving.
 834     if (!empty($params["billing_state_province_id-{$this->_bltID}"])) {
 835       $params['state_province'] = $params["state_province-{$this->_bltID}"] = $params["billing_state_province-{$this->_bltID}"] = CRM_Core_PseudoConstant::stateProvinceAbbreviation($params["billing_state_province_id-{$this->_bltID}"]);
 836     }
 837     if (!empty($params["billing_country_id-{$this->_bltID}"])) {
 838       $params['country'] = $params["country-{$this->_bltID}"] = $params["billing_country-{$this->_bltID}"] = CRM_Core_PseudoConstant::countryIsoCode($params["billing_country_id-{$this->_bltID}"]);
 839     }
 840
 841     list($hasAddressField, $addressParams) = CRM_Contribute_BAO_Contribution::getPaymentProcessorReadyAddressParams($params, $this->_bltID);
 842     if ($hasAddressField) {
 843       $params = array_merge($params, $addressParams);
 844     }
 845
 846     // How does this relate to similar code in CRM_Contact_BAO_Contact::addBillingNameFieldsIfOtherwiseNotSet()?
 847     $nameFields = ['first_name', 'middle_name', 'last_name'];
 848     foreach ($nameFields as $name) {
 849       if (array_key_exists("billing_$name", $params)) {
 850         $params[$name] = $params["billing_{$name}"];
 851         $params['preserveDBName'] = TRUE;
 852       }
 853     }
 854
 855     // For legacy reasons we set these creditcard expiry fields if present
 856     if (isset($params['credit_card_exp_date'])) {
 857       $params['year'] = CRM_Core_Payment_Form::getCreditCardExpirationYear($params);
 858       $params['month'] = CRM_Core_Payment_Form::getCreditCardExpirationMonth($params);
 859     }
 860
 861     // Assign IP address parameter
 862     $params['ip_address'] = CRM_Utils_System::ipAddress();
 863
 864     return $params;
 865   }
 866
 867   /**
 868    * Handle Payment Processor switching for contribution and event registration forms.
 869    *
 870    * This function is shared between contribution & event forms & this is their common class.
 871    *
 872    * However, this should be seen as an in-progress refactor, the end goal being to also align the
 873    * backoffice forms that action payments.
 874    *
 875    * This function overlaps assignPaymentProcessor, in a bad way.
 876    */
 877   protected function preProcessPaymentOptions() {
 878     $this->_paymentProcessorID = NULL;
 879     if ($this->_paymentProcessors) {
 880       if (!empty($this->_submitValues)) {
 881         $this->_paymentProcessorID = $this->_submitValues['payment_processor_id'] ?? NULL;
 882         $this->_paymentProcessor = $this->_paymentProcessors[$this->_paymentProcessorID] ?? NULL;
 883         $this->set('type', $this->_paymentProcessorID);
 884         $this->set('mode', $this->_mode);
 885         $this->set('paymentProcessor', $this->_paymentProcessor);
 886       }
 887       // Set default payment processor
 888       else {
 889         foreach ($this->_paymentProcessors as $values) {
 890           if (!empty($values['is_default']) || count($this->_paymentProcessors) == 1) {
 891             $this->_paymentProcessorID = $values['id'];
 892             break;
 893           }
 894         }
 895       }
 896       if ($this->_paymentProcessorID
 897         || (isset($this->_submitValues['payment_processor_id']) && $this->_submitValues['payment_processor_id'] == 0)
 898       ) {
 899         CRM_Core_Payment_ProcessorForm::preProcess($this);
 900       }
 901       else {
 902         $this->_paymentProcessor = [];
 903       }
 904     }
 905
 906     // We save the fact that the profile 'billing' is required on the payment form.
 907     // Currently pay-later is the only 'processor' that takes notice of this - but ideally
 908     // 1) it would be possible to select the minimum_billing_profile_id for the contribution form
 909     // 2) that profile_id would be set on the payment processor
 910     // 3) the payment processor would return a billing form that combines these user-configured
 911     // minimums with the payment processor minimums. This would lead to fields like 'postal_code'
 912     // only being on the form if either the admin has configured it as wanted or the processor
 913     // requires it.
 914     $this->assign('billing_profile_id', (!empty($this->_values['is_billing_required']) ? 'billing' : ''));
 915   }
 916
 917   /**
 918    * Handle pre approval for processors.
 919    *
 920    * This fits with the flow where a pre-approval is done and then confirmed in the next stage when confirm is hit.
 921    *
 922    * This function is shared between contribution & event forms & this is their common class.
 923    *
 924    * However, this should be seen as an in-progress refactor, the end goal being to also align the
 925    * backoffice forms that action payments.
 926    *
 927    * @param array $params
 928    */
 929   protected function handlePreApproval(&$params) {
 930     try {
 931       $payment = Civi\Payment\System::singleton()->getByProcessor($this->_paymentProcessor);
 932       $params['component'] = $params['component'] ?? 'contribute';
 933       $result = $payment->doPreApproval($params);
 934       if (empty($result)) {
 935         // This could happen, for example, when paypal looks at the button value & decides it is not paypal express.
 936         return;
 937       }
 938     }
 939     catch (\Civi\Payment\Exception\PaymentProcessorException $e) {
 940       CRM_Core_Error::statusBounce(ts('Payment approval failed with message :') . $e->getMessage(), $payment->getCancelUrl($params['qfKey'], CRM_Utils_Array::value('participant_id', $params)));
 941     }
 942
 943     $this->set('pre_approval_parameters', $result['pre_approval_parameters']);
 944     if (!empty($result['redirect_url'])) {
 945       CRM_Utils_System::redirect($result['redirect_url']);
 946     }
 947   }
 948
 949   /**
 950    * Setter function for options.
 951    *
 952    * @param mixed $options
 953    */
 954   public function setOptions($options) {
 955     $this->_options = $options;
 956   }
 957
 958   /**
 959    * Render form and return contents.
 960    *
 961    * @return string
 962    */
 963   public function toSmarty() {
 964     $this->preProcessChainSelectFields();
 965     $renderer = $this->getRenderer();
 966     $this->accept($renderer);
 967     $content = $renderer->toArray();
 968     $content['formName'] = $this->getName();
 969     // CRM-15153
 970     $content['formClass'] = CRM_Utils_System::getClassName($this);
 971     return $content;
 972   }
 973
 974   /**
 975    * Getter function for renderer.
 976    *
 977    * If renderer is not set create one and initialize it.
 978    *
 979    * @return object
 980    */
 981   public function &getRenderer() {
 982     if (!isset($this->_renderer)) {
 983       $this->_renderer = CRM_Core_Form_Renderer::singleton();
 984     }
 985     return $this->_renderer;
 986   }
 987
 988   /**
 989    * Use the form name to create the tpl file name.
 990    *
 991    * @return string
 992    */
 993   public function getTemplateFileName() {
 994     $ext = CRM_Extension_System::singleton()->getMapper();
 995     if ($ext->isExtensionClass(CRM_Utils_System::getClassName($this))) {
 996       $filename = $ext->getTemplateName(CRM_Utils_System::getClassName($this));
 997       $tplname = $ext->getTemplatePath(CRM_Utils_System::getClassName($this)) . DIRECTORY_SEPARATOR . $filename;
 998     }
 999     else {
1000       $tplname = strtr(
1001         CRM_Utils_System::getClassName($this),
1002         [
1003           '_' => DIRECTORY_SEPARATOR,
1004           '\\' => DIRECTORY_SEPARATOR,
1005         ]
1006       ) . '.tpl';
1007     }
1008     return $tplname;
1009   }
1010
1011   /**
1012    * A wrapper for getTemplateFileName.
1013    *
1014    * This includes calling the hook to prevent us from having to copy & paste the logic of calling the hook.
1015    */
1016   public function getHookedTemplateFileName() {
1017     $pageTemplateFile = $this->getTemplateFileName();
1018     CRM_Utils_Hook::alterTemplateFile(get_class($this), $this, 'page', $pageTemplateFile);
1019     return $pageTemplateFile;
1020   }
1021
1022   /**
1023    * Default extra tpl file basically just replaces .tpl with .extra.tpl.
1024    *
1025    * i.e. we do not override.
1026    *
1027    * @return string
1028    */
1029   public function overrideExtraTemplateFileName() {
1030     return NULL;
1031   }
1032
1033   /**
1034    * Error reporting mechanism.
1035    *
1036    * @param string $message
1037    *   Error Message.
1038    * @param int $code
1039    *   Error Code.
1040    * @param CRM_Core_DAO $dao
1041    *   A data access object on which we perform a rollback if non - empty.
1042    */
1043   public function error($message, $code = NULL, $dao = NULL) {
1044     if ($dao) {
1045       $dao->query('ROLLBACK');
1046     }
1047
1048     $error = CRM_Core_Error::singleton();
1049
1050     $error->push($code, $message);
1051   }
1052
1053   /**
1054    * Store the variable with the value in the form scope.
1055    *
1056    * @param string $name
1057    *   Name of the variable.
1058    * @param mixed $value
1059    *   Value of the variable.
1060    */
1061   public function set($name, $value) {
1062     $this->controller->set($name, $value);
1063   }
1064
1065   /**
1066    * Get the variable from the form scope.
1067    *
1068    * @param string $name
1069    *   Name of the variable
1070    *
1071    * @return mixed
1072    */
1073   public function get($name) {
1074     return $this->controller->get($name);
1075   }
1076
1077   /**
1078    * Getter for action.
1079    *
1080    * @return int
1081    */
1082   public function getAction() {
1083     return $this->_action;
1084   }
1085
1086   /**
1087    * Setter for action.
1088    *
1089    * @param int $action
1090    *   The mode we want to set the form.
1091    */
1092   public function setAction($action) {
1093     $this->_action = $action;
1094   }
1095
1096   /**
1097    * Assign value to name in template.
1098    *
1099    * @param string $var
1100    *   Name of variable.
1101    * @param mixed $value
1102    *   Value of variable.
1103    */
1104   public function assign($var, $value = NULL) {
1105     self::$_template->assign($var, $value);
1106   }
1107
1108   /**
1109    * Assign value to name in template by reference.
1110    *
1111    * @param string $var
1112    *   Name of variable.
1113    * @param mixed $value
1114    *   Value of variable.
1115    */
1116   public function assign_by_ref($var, &$value) {
1117     self::$_template->assign_by_ref($var, $value);
1118   }
1119
1120   /**
1121    * Appends values to template variables.
1122    *
1123    * @param array|string $tpl_var the template variable name(s)
1124    * @param mixed $value
1125    *   The value to append.
1126    * @param bool $merge
1127    */
1128   public function append($tpl_var, $value = NULL, $merge = FALSE) {
1129     self::$_template->append($tpl_var, $value, $merge);
1130   }
1131
1132   /**
1133    * Returns an array containing template variables.
1134    *
1135    * @param string $name
1136    *
1137    * @return array
1138    */
1139   public function get_template_vars($name = NULL) {
1140     return self::$_template->get_template_vars($name);
1141   }
1142
1143   /**
1144    * @param string $name
1145    * @param $title
1146    * @param $values
1147    * @param array $attributes
1148    * @param null $separator
1149    * @param bool $required
1150    * @param array $optionAttributes - Option specific attributes
1151    *
1152    * @return HTML_QuickForm_group
1153    */
1154   public function &addRadio($name, $title, $values, $attributes = [], $separator = NULL, $required = FALSE, $optionAttributes = []) {
1155     $options = [];
1156     $attributes = $attributes ? $attributes : [];
1157     $allowClear = !empty($attributes['allowClear']);
1158     unset($attributes['allowClear']);
1159     $attributes['id_suffix'] = $name;
1160     foreach ($values as $key => $var) {
1161       $optAttributes = $attributes;
1162       if (!empty($optionAttributes[$key])) {
1163         foreach ($optionAttributes[$key] as $optAttr => $optVal) {
1164           if (!empty($optAttributes[$optAttr])) {
1165             $optAttributes[$optAttr] .= ' ' . $optVal;
1166           }
1167           else {
1168             $optAttributes[$optAttr] = $optVal;
1169           }
1170         }
1171       }
1172       $options[] = $this->createElement('radio', NULL, NULL, $var, $key, $optAttributes);
1173     }
1174     $group = $this->addGroup($options, $name, $title, $separator);
1175
1176     $optionEditKey = 'data-option-edit-path';
1177     if (!empty($attributes[$optionEditKey])) {
1178       $group->setAttribute($optionEditKey, $attributes[$optionEditKey]);
1179     }
1180
1181     if ($required) {
1182       $this->addRule($name, ts('%1 is a required field.', [1 => $title]), 'required');
1183     }
1184     if ($allowClear) {
1185       $group->setAttribute('allowClear', TRUE);
1186     }
1187     return $group;
1188   }
1189
1190   /**
1191    * @param int $id
1192    * @param $title
1193    * @param bool $allowClear
1194    * @param null $required
1195    * @param array $attributes
1196    */
1197   public function addYesNo($id, $title, $allowClear = FALSE, $required = NULL, $attributes = []) {
1198     $attributes += ['id_suffix' => $id];
1199     $choice = [];
1200     $choice[] = $this->createElement('radio', NULL, '11', ts('Yes'), '1', $attributes);
1201     $choice[] = $this->createElement('radio', NULL, '11', ts('No'), '0', $attributes);
1202
1203     $group = $this->addGroup($choice, $id, $title);
1204     if ($allowClear) {
1205       $group->setAttribute('allowClear', TRUE);
1206     }
1207     if ($required) {
1208       $this->addRule($id, ts('%1 is a required field.', [1 => $title]), 'required');
1209     }
1210   }
1211
1212   /**
1213    * @param int $id
1214    * @param $title
1215    * @param $values
1216    * @param null $other
1217    * @param null $attributes
1218    * @param null $required
1219    * @param null $javascriptMethod
1220    * @param string $separator
1221    * @param bool $flipValues
1222    */
1223   public function addCheckBox(
1224     $id, $title, $values, $other = NULL,
1225     $attributes = NULL, $required = NULL,
1226     $javascriptMethod = NULL,
1227     $separator = '<br />', $flipValues = FALSE
1228   ) {
1229     $options = [];
1230
1231     if ($javascriptMethod) {
1232       foreach ($values as $key => $var) {
1233         if (!$flipValues) {
1234           $options[] = $this->createElement('checkbox', $var, NULL, $key, $javascriptMethod, $attributes);
1235         }
1236         else {
1237           $options[] = $this->createElement('checkbox', $key, NULL, $var, $javascriptMethod, $attributes);
1238         }
1239       }
1240     }
1241     else {
1242       foreach ($values as $key => $var) {
1243         if (!$flipValues) {
1244           $options[] = $this->createElement('checkbox', $var, NULL, $key, $attributes);
1245         }
1246         else {
1247           $options[] = $this->createElement('checkbox', $key, NULL, $var, $attributes);
1248         }
1249       }
1250     }
1251
1252     $group = $this->addGroup($options, $id, $title, $separator);
1253     $optionEditKey = 'data-option-edit-path';
1254     if (!empty($attributes[$optionEditKey])) {
1255       $group->setAttribute($optionEditKey, $attributes[$optionEditKey]);
1256     }
1257
1258     if ($other) {
1259       $this->addElement('text', $id . '_other', ts('Other'), $attributes[$id . '_other']);
1260     }
1261
1262     if ($required) {
1263       $this->addRule($id,
1264         ts('%1 is a required field.', [1 => $title]),
1265         'required'
1266       );
1267     }
1268   }
1269
1270   public function resetValues() {
1271     $data = $this->controller->container();
1272     $data['values'][$this->_name] = [];
1273   }
1274
1275   /**
1276    * Simple shell that derived classes can call to add buttons to
1277    * the form with a customized title for the main Submit
1278    *
1279    * @param string $title
1280    *   Title of the main button.
1281    * @param string $nextType
1282    *   Button type for the form after processing.
1283    * @param string $backType
1284    * @param bool|string $submitOnce
1285    */
1286   public function addDefaultButtons($title, $nextType = 'next', $backType = 'back', $submitOnce = FALSE) {
1287     $buttons = [];
1288     if ($backType != NULL) {
1289       $buttons[] = [
1290         'type' => $backType,
1291         'name' => ts('Previous'),
1292       ];
1293     }
1294     if ($nextType != NULL) {
1295       $nextButton = [
1296         'type' => $nextType,
1297         'name' => $title,
1298         'isDefault' => TRUE,
1299       ];
1300       if ($submitOnce) {
1301         $this->submitOnce = TRUE;
1302       }
1303       $buttons[] = $nextButton;
1304     }
1305     $this->addButtons($buttons);
1306   }
1307
1308   /**
1309    * @param string $name
1310    * @param string $from
1311    * @param string $to
1312    * @param string $label
1313    * @param string $dateFormat
1314    * @param bool $required
1315    * @param bool $displayTime
1316    */
1317   public function addDateRange($name, $from = '_from', $to = '_to', $label = 'From:', $dateFormat = 'searchDate', $required = FALSE, $displayTime = FALSE) {
1318     if ($displayTime) {
1319       $this->addDateTime($name . $from, $label, $required, ['formatType' => $dateFormat]);
1320       $this->addDateTime($name . $to, ts('To:'), $required, ['formatType' => $dateFormat]);
1321     }
1322     else {
1323       $this->addDate($name . $from, $label, $required, ['formatType' => $dateFormat]);
1324       $this->addDate($name . $to, ts('To:'), $required, ['formatType' => $dateFormat]);
1325     }
1326   }
1327
1328   /**
1329    * Add a search for a range using date picker fields.
1330    *
1331    * @param string $fieldName
1332    * @param string $label
1333    * @param bool $isDateTime
1334    *   Is this a date-time field (not just date).
1335    * @param bool $required
1336    * @param string $fromLabel
1337    * @param string $toLabel
1338    */
1339   public function addDatePickerRange($fieldName, $label, $isDateTime = FALSE, $required = FALSE, $fromLabel = 'From', $toLabel = 'To') {
1340
1341     $options = [
1342       '' => ts('- any -'),
1343       0 => ts('Choose Date Range'),
1344     ] + CRM_Core_OptionGroup::values('relative_date_filters');
1345
1346     $this->add('select',
1347       "{$fieldName}_relative",
1348       $label,
1349       $options,
1350       $required,
1351       ['class' => 'crm-select2']
1352     );
1353     $attributes = ['format' => 'searchDate'];
1354     $extra = ['time' => $isDateTime];
1355     $this->add('datepicker', $fieldName . '_low', ts($fromLabel), $attributes, $required, $extra);
1356     $this->add('datepicker', $fieldName . '_high', ts($toLabel), $attributes, $required, $extra);
1357   }
1358
1359   /**
1360    * Based on form action, return a string representing the api action.
1361    * Used by addField method.
1362    *
1363    * Return string
1364    */
1365   protected function getApiAction() {
1366     $action = $this->getAction();
1367     if ($action & (CRM_Core_Action::UPDATE + CRM_Core_Action::ADD)) {
1368       return 'create';
1369     }
1370     if ($action & (CRM_Core_Action::VIEW + CRM_Core_Action::BROWSE + CRM_Core_Action::BASIC + CRM_Core_Action::ADVANCED + CRM_Core_Action::PREVIEW)) {
1371       return 'get';
1372     }
1373     if ($action & (CRM_Core_Action::DELETE)) {
1374       return 'delete';
1375     }
1376     // If you get this exception try adding more cases above.
1377     throw new Exception("Cannot determine api action for " . get_class($this) . '.' . 'CRM_Core_Action "' . CRM_Core_Action::description($action) . '" not recognized.');
1378   }
1379
1380   /**
1381    * Classes extending CRM_Core_Form should implement this method.
1382    * @throws Exception
1383    */
1384   public function getDefaultEntity() {
1385     throw new Exception("Cannot determine default entity. " . get_class($this) . " should implement getDefaultEntity().");
1386   }
1387
1388   /**
1389    * Classes extending CRM_Core_Form should implement this method.
1390    *
1391    * TODO: Merge with CRM_Core_DAO::buildOptionsContext($context) and add validation.
1392    * @throws Exception
1393    */
1394   public function getDefaultContext() {
1395     throw new Exception("Cannot determine default context. " . get_class($this) . " should implement getDefaultContext().");
1396   }
1397
1398   /**
1399    * Adds a select based on field metadata.
1400    * TODO: This could be even more generic and widget type (select in this case) could also be read from metadata
1401    * Perhaps a method like $form->bind($name) which would look up all metadata for named field
1402    * @param $name
1403    *   Field name to go on the form.
1404    * @param array $props
1405    *   Mix of html attributes and special properties, namely.
1406    *   - entity (api entity name, can usually be inferred automatically from the form class)
1407    *   - field (field name - only needed if different from name used on the form)
1408    *   - option_url - path to edit this option list - usually retrieved automatically - set to NULL to disable link
1409    *   - placeholder - set to NULL to disable
1410    *   - multiple - bool
1411    *   - context - @see CRM_Core_DAO::buildOptionsContext
1412    * @param bool $required
1413    * @throws CRM_Core_Exception
1414    * @return HTML_QuickForm_Element
1415    */
1416   public function addSelect($name, $props = [], $required = FALSE) {
1417     if (!isset($props['entity'])) {
1418       $props['entity'] = $this->getDefaultEntity();
1419     }
1420     if (!isset($props['field'])) {
1421       $props['field'] = strrpos($name, '[') ? rtrim(substr($name, 1 + strrpos($name, '[')), ']') : $name;
1422     }
1423     if (!isset($props['context'])) {
1424       try {
1425         $props['context'] = $this->getDefaultContext();
1426       }
1427       // This is not a required param, so we'll ignore if this doesn't exist.
1428       catch (Exception $e) {
1429       }
1430     }
1431     // Fetch options from the api unless passed explicitly
1432     if (isset($props['options'])) {
1433       $options = $props['options'];
1434     }
1435     else {
1436       $info = civicrm_api3($props['entity'], 'getoptions', $props);
1437       $options = $info['values'];
1438     }
1439     if (!array_key_exists('placeholder', $props)) {
1440       $props['placeholder'] = $required ? ts('- select -') : CRM_Utils_Array::value('context', $props) == 'search' ? ts('- any -') : ts('- none -');
1441     }
1442     // Handle custom field
1443     if (strpos($name, 'custom_') === 0 && is_numeric($name[7])) {
1444       list(, $id) = explode('_', $name);
1445       $label = $props['label'] ?? CRM_Core_DAO::getFieldValue('CRM_Core_DAO_CustomField', 'label', $id);
1446       $gid = CRM_Core_DAO::getFieldValue('CRM_Core_DAO_CustomField', 'option_group_id', $id);
1447       if (CRM_Utils_Array::value('context', $props) != 'search') {
1448         $props['data-option-edit-path'] = array_key_exists('option_url', $props) ? $props['option_url'] : 'civicrm/admin/options/' . CRM_Core_DAO::getFieldValue('CRM_Core_DAO_OptionGroup', $gid);
1449       }
1450     }
1451     // Core field
1452     else {
1453       $info = civicrm_api3($props['entity'], 'getfields');
1454       foreach ($info['values'] as $uniqueName => $fieldSpec) {
1455         if (
1456           $uniqueName === $props['field'] ||
1457           CRM_Utils_Array::value('name', $fieldSpec) === $props['field'] ||
1458           in_array($props['field'], CRM_Utils_Array::value('api.aliases', $fieldSpec, []))
1459         ) {
1460           break;
1461         }
1462       }
1463       $label = $props['label'] ?? $fieldSpec['title'];
1464       if (CRM_Utils_Array::value('context', $props) != 'search') {
1465         $props['data-option-edit-path'] = array_key_exists('option_url', $props) ? $props['option_url'] : CRM_Core_PseudoConstant::getOptionEditUrl($fieldSpec);
1466       }
1467     }
1468     $props['class'] = (isset($props['class']) ? $props['class'] . ' ' : '') . "crm-select2";
1469     $props['data-api-entity'] = $props['entity'];
1470     $props['data-api-field'] = $props['field'];
1471     CRM_Utils_Array::remove($props, 'label', 'entity', 'field', 'option_url', 'options', 'context');
1472     return $this->add('select', $name, $label, $options, $required, $props);
1473   }
1474
1475   /**
1476    * Adds a field based on metadata.
1477    *
1478    * @param $name
1479    *   Field name to go on the form.
1480    * @param array $props
1481    *   Mix of html attributes and special properties, namely.
1482    *   - entity (api entity name, can usually be inferred automatically from the form class)
1483    *   - name (field name - only needed if different from name used on the form)
1484    *   - option_url - path to edit this option list - usually retrieved automatically - set to NULL to disable link
1485    *   - placeholder - set to NULL to disable
1486    *   - multiple - bool
1487    *   - context - @see CRM_Core_DAO::buildOptionsContext
1488    * @param bool $required
1489    * @param bool $legacyDate
1490    *   Temporary param to facilitate the conversion of fields to use the datepicker in
1491    *   a controlled way. To convert the field the jcalendar code needs to be removed from the
1492    *   tpl as well. That file is intended to be EOL.
1493    *
1494    * @throws \CiviCRM_API3_Exception
1495    * @throws \Exception
1496    * @return mixed
1497    *   HTML_QuickForm_Element
1498    *   void
1499    */
1500   public function addField($name, $props = [], $required = FALSE, $legacyDate = TRUE) {
1501     // Resolve context.
1502     if (empty($props['context'])) {
1503       $props['context'] = $this->getDefaultContext();
1504     }
1505     $context = $props['context'];
1506     // Resolve entity.
1507     if (empty($props['entity'])) {
1508       $props['entity'] = $this->getDefaultEntity();
1509     }
1510     // Resolve field.
1511     if (empty($props['name'])) {
1512       $props['name'] = strrpos($name, '[') ? rtrim(substr($name, 1 + strrpos($name, '[')), ']') : $name;
1513     }
1514     // Resolve action.
1515     if (empty($props['action'])) {
1516       $props['action'] = $this->getApiAction();
1517     }
1518
1519     // Handle custom fields
1520     if (strpos($name, 'custom_') === 0 && is_numeric($name[7])) {
1521       $fieldId = (int) substr($name, 7);
1522       return CRM_Core_BAO_CustomField::addQuickFormElement($this, $name, $fieldId, $required, $context == 'search', CRM_Utils_Array::value('label', $props));
1523     }
1524
1525     // Core field - get metadata.
1526     $fieldSpec = civicrm_api3($props['entity'], 'getfield', $props);
1527     $fieldSpec = $fieldSpec['values'];
1528     $fieldSpecLabel = $fieldSpec['html']['label'] ?? CRM_Utils_Array::value('title', $fieldSpec);
1529     $label = CRM_Utils_Array::value('label', $props, $fieldSpecLabel);
1530
1531     $widget = $props['type'] ?? $fieldSpec['html']['type'];
1532     if ($widget == 'TextArea' && $context == 'search') {
1533       $widget = 'Text';
1534     }
1535
1536     $isSelect = (in_array($widget, [
1537       'Select',
1538       'Select2',
1539       'CheckBoxGroup',
1540       'RadioGroup',
1541       'Radio',
1542     ]));
1543
1544     if ($isSelect) {
1545       // Fetch options from the api unless passed explicitly.
1546       if (isset($props['options'])) {
1547         $options = $props['options'];
1548       }
1549       else {
1550         $options = $fieldSpec['options'] ?? NULL;
1551       }
1552       if ($context == 'search') {
1553         $widget = $widget == 'Select2' ? $widget : 'Select';
1554         $props['multiple'] = CRM_Utils_Array::value('multiple', $props, TRUE);
1555       }
1556
1557       // Add data for popup link.
1558       $canEditOptions = CRM_Core_Permission::check('administer CiviCRM');
1559       $hasOptionUrl = !empty($props['option_url']);
1560       $optionUrlKeyIsSet = array_key_exists('option_url', $props);
1561       $shouldAdd = $context !== 'search' && $isSelect && $canEditOptions;
1562
1563       // Only add if key is not set, or if non-empty option url is provided
1564       if (($hasOptionUrl || !$optionUrlKeyIsSet) && $shouldAdd) {
1565         $optionUrl = $hasOptionUrl ? $props['option_url'] :
1566           CRM_Core_PseudoConstant::getOptionEditUrl($fieldSpec);
1567         $props['data-option-edit-path'] = $optionUrl;
1568         $props['data-api-entity'] = $props['entity'];
1569         $props['data-api-field'] = $props['name'];
1570       }
1571     }
1572     $props += CRM_Utils_Array::value('html', $fieldSpec, []);
1573     CRM_Utils_Array::remove($props, 'entity', 'name', 'context', 'label', 'action', 'type', 'option_url', 'options');
1574
1575     // TODO: refactor switch statement, to separate methods.
1576     switch ($widget) {
1577       case 'Text':
1578       case 'Url':
1579       case 'Number':
1580       case 'Email':
1581         //TODO: Autodetect ranges
1582         $props['size'] = $props['size'] ?? 60;
1583         return $this->add(strtolower($widget), $name, $label, $props, $required);
1584
1585       case 'hidden':
1586         return $this->add('hidden', $name, NULL, $props, $required);
1587
1588       case 'TextArea':
1589         //Set default columns and rows for textarea.
1590         $props['rows'] = $props['rows'] ?? 4;
1591         $props['cols'] = $props['cols'] ?? 60;
1592         if (empty($props['maxlength']) && isset($fieldSpec['length'])) {
1593           $props['maxlength'] = $fieldSpec['length'];
1594         }
1595         return $this->add('textarea', $name, $label, $props, $required);
1596
1597       case 'Select Date':
1598         // This is a white list for fields that have been tested with
1599         // date picker. We should be able to remove the other
1600         if ($legacyDate) {
1601           //TODO: add range support
1602           //TODO: Add date formats
1603           //TODO: Add javascript template for dates.
1604           return $this->addDate($name, $label, $required, $props);
1605         }
1606         else {
1607           $fieldSpec = CRM_Utils_Date::addDateMetadataToField($fieldSpec, $fieldSpec);
1608           $attributes = ['format' => $fieldSpec['date_format']];
1609           return $this->add('datepicker', $name, $label, $attributes, $required, $fieldSpec['datepicker']['extra']);
1610         }
1611
1612       case 'Radio':
1613         $separator = $props['separator'] ?? NULL;
1614         unset($props['separator']);
1615         if (!isset($props['allowClear'])) {
1616           $props['allowClear'] = !$required;
1617         }
1618         return $this->addRadio($name, $label, $options, $props, $separator, $required);
1619
1620       case 'ChainSelect':
1621         $props += [
1622           'required' => $required,
1623           'label' => $label,
1624           'multiple' => $context == 'search',
1625         ];
1626         return $this->addChainSelect($name, $props);
1627
1628       case 'Select':
1629       case 'Select2':
1630         $props['class'] = CRM_Utils_Array::value('class', $props, 'big') . ' crm-select2';
1631         if (!array_key_exists('placeholder', $props)) {
1632           $props['placeholder'] = $required ? ts('- select -') : ($context == 'search' ? ts('- any -') : ts('- none -'));
1633         }
1634         // TODO: Add and/or option for fields that store multiple values
1635         return $this->add(strtolower($widget), $name, $label, $options, $required, $props);
1636
1637       case 'CheckBoxGroup':
1638         return $this->addCheckBox($name, $label, array_flip($options), $required, $props);
1639
1640       case 'RadioGroup':
1641         return $this->addRadio($name, $label, $options, $props, NULL, $required);
1642
1643       case 'CheckBox':
1644         if ($context === 'search') {
1645           $this->addYesNo($name, $label, TRUE, FALSE, $props);
1646           return;
1647         }
1648         $text = $props['text'] ?? NULL;
1649         unset($props['text']);
1650         return $this->addElement('checkbox', $name, $label, $text, $props);
1651
1652       //add support for 'Advcheckbox' field
1653       case 'advcheckbox':
1654         $text = $props['text'] ?? NULL;
1655         unset($props['text']);
1656         return $this->addElement('advcheckbox', $name, $label, $text, $props);
1657
1658       case 'File':
1659         // We should not build upload file in search mode.
1660         if ($context == 'search') {
1661           return;
1662         }
1663         $file = $this->add('file', $name, $label, $props, $required);
1664         $this->addUploadElement($name);
1665         return $file;
1666
1667       case 'RichTextEditor':
1668         return $this->add('wysiwyg', $name, $label, $props, $required);
1669
1670       case 'EntityRef':
1671         return $this->addEntityRef($name, $label, $props, $required);
1672
1673       case 'Password':
1674         $props['size'] = $props['size'] ?? 60;
1675         return $this->add('password', $name, $label, $props, $required);
1676
1677       // Check datatypes of fields
1678       // case 'Int':
1679       //case 'Float':
1680       //case 'Money':
1681       //case read only fields
1682       default:
1683         throw new Exception("Unsupported html-element " . $widget);
1684     }
1685   }
1686
1687   /**
1688    * Add a widget for selecting/editing/creating/copying a profile form
1689    *
1690    * @param string $name
1691    *   HTML form-element name.
1692    * @param string $label
1693    *   Printable label.
1694    * @param string $allowCoreTypes
1695    *   Only present a UFGroup if its group_type includes a subset of $allowCoreTypes; e.g. 'Individual', 'Activity'.
1696    * @param string $allowSubTypes
1697    *   Only present a UFGroup if its group_type is compatible with $allowSubypes.
1698    * @param array $entities
1699    * @param bool $default
1700    *   //CRM-15427.
1701    * @param string $usedFor
1702    */
1703   public function addProfileSelector($name, $label, $allowCoreTypes, $allowSubTypes, $entities, $default = FALSE, $usedFor = NULL) {
1704     // Output widget
1705     // FIXME: Instead of adhoc serialization, use a single json_encode()
1706     CRM_UF_Page_ProfileEditor::registerProfileScripts();
1707     CRM_UF_Page_ProfileEditor::registerSchemas(CRM_Utils_Array::collect('entity_type', $entities));
1708     $this->add('text', $name, $label, [
1709       'class' => 'crm-profile-selector',
1710       // Note: client treats ';;' as equivalent to \0, and ';;' works better in HTML
1711       'data-group-type' => CRM_Core_BAO_UFGroup::encodeGroupType($allowCoreTypes, $allowSubTypes, ';;'),
1712       'data-entities' => json_encode($entities),
1713       //CRM-15427
1714       'data-default' => $default,
1715       'data-usedfor' => json_encode($usedFor),
1716     ]);
1717   }
1718
1719   /**
1720    * @return null
1721    */
1722   public function getRootTitle() {
1723     return NULL;
1724   }
1725
1726   /**
1727    * @return string
1728    */
1729   public function getCompleteTitle() {
1730     return $this->getRootTitle() . $this->getTitle();
1731   }
1732
1733   /**
1734    * @return CRM_Core_Smarty
1735    */
1736   public static function &getTemplate() {
1737     return self::$_template;
1738   }
1739
1740   /**
1741    * @param $elementName
1742    */
1743   public function addUploadElement($elementName) {
1744     $uploadNames = $this->get('uploadNames');
1745     if (!$uploadNames) {
1746       $uploadNames = [];
1747     }
1748     if (is_array($elementName)) {
1749       foreach ($elementName as $name) {
1750         if (!in_array($name, $uploadNames)) {
1751           $uploadNames[] = $name;
1752         }
1753       }
1754     }
1755     else {
1756       if (!in_array($elementName, $uploadNames)) {
1757         $uploadNames[] = $elementName;
1758       }
1759     }
1760     $this->set('uploadNames', $uploadNames);
1761
1762     $config = CRM_Core_Config::singleton();
1763     if (!empty($uploadNames)) {
1764       $this->controller->addUploadAction($config->customFileUploadDir, $uploadNames);
1765     }
1766   }
1767
1768   /**
1769    * @param $name
1770    *
1771    * @return null
1772    */
1773   public function getVar($name) {
1774     return $this->$name ?? NULL;
1775   }
1776
1777   /**
1778    * @param $name
1779    * @param $value
1780    */
1781   public function setVar($name, $value) {
1782     $this->$name = $value;
1783   }
1784
1785   /**
1786    * Add date.
1787    *
1788    * @deprecated
1789    * Use $this->add('datepicker', ...) instead.
1790    *
1791    * @param string $name
1792    *   Name of the element.
1793    * @param string $label
1794    *   Label of the element.
1795    * @param bool $required
1796    *   True if required.
1797    * @param array $attributes
1798    *   Key / value pair.
1799    */
1800   public function addDate($name, $label, $required = FALSE, $attributes = NULL) {
1801     if (!empty($attributes['formatType'])) {
1802       // get actual format
1803       $params = ['name' => $attributes['formatType']];
1804       $values = [];
1805
1806       // cache date information
1807       static $dateFormat;
1808       $key = "dateFormat_" . str_replace(' ', '_', $attributes['formatType']);
1809       if (empty($dateFormat[$key])) {
1810         CRM_Core_DAO::commonRetrieve('CRM_Core_DAO_PreferencesDate', $params, $values);
1811         $dateFormat[$key] = $values;
1812       }
1813       else {
1814         $values = $dateFormat[$key];
1815       }
1816
1817       if ($values['date_format']) {
1818         $attributes['format'] = $values['date_format'];
1819       }
1820
1821       if (!empty($values['time_format'])) {
1822         $attributes['timeFormat'] = $values['time_format'];
1823       }
1824       $attributes['startOffset'] = $values['start'];
1825       $attributes['endOffset'] = $values['end'];
1826     }
1827
1828     $config = CRM_Core_Config::singleton();
1829     if (empty($attributes['format'])) {
1830       $attributes['format'] = $config->dateInputFormat;
1831     }
1832
1833     if (!isset($attributes['startOffset'])) {
1834       $attributes['startOffset'] = 10;
1835     }
1836
1837     if (!isset($attributes['endOffset'])) {
1838       $attributes['endOffset'] = 10;
1839     }
1840
1841     $this->add('text', $name, $label, $attributes);
1842
1843     if (!empty($attributes['addTime']) || !empty($attributes['timeFormat'])) {
1844
1845       if (!isset($attributes['timeFormat'])) {
1846         $timeFormat = $config->timeInputFormat;
1847       }
1848       else {
1849         $timeFormat = $attributes['timeFormat'];
1850       }
1851
1852       // 1 - 12 hours and 2 - 24 hours, but for jquery widget it is 0 and 1 respectively
1853       if ($timeFormat) {
1854         $show24Hours = TRUE;
1855         if ($timeFormat == 1) {
1856           $show24Hours = FALSE;
1857         }
1858
1859         //CRM-6664 -we are having time element name
1860         //in either flat string or an array format.
1861         $elementName = $name . '_time';
1862         if (substr($name, -1) == ']') {
1863           $elementName = substr($name, 0, strlen($name) - 1) . '_time]';
1864         }
1865
1866         $this->add('text', $elementName, ts('Time'), ['timeFormat' => $show24Hours]);
1867       }
1868     }
1869
1870     if ($required) {
1871       $this->addRule($name, ts('Please select %1', [1 => $label]), 'required');
1872       if (!empty($attributes['addTime']) && !empty($attributes['addTimeRequired'])) {
1873         $this->addRule($elementName, ts('Please enter a time.'), 'required');
1874       }
1875     }
1876   }
1877
1878   /**
1879    * Function that will add date and time.
1880    *
1881    * @deprecated
1882    * Use $this->add('datepicker', ...) instead.
1883    *
1884    * @param string $name
1885    * @param string $label
1886    * @param bool $required
1887    * @param null $attributes
1888    */
1889   public function addDateTime($name, $label, $required = FALSE, $attributes = NULL) {
1890     $addTime = ['addTime' => TRUE];
1891     if (is_array($attributes)) {
1892       $attributes = array_merge($attributes, $addTime);
1893     }
1894     else {
1895       $attributes = $addTime;
1896     }
1897
1898     $this->addDate($name, $label, $required, $attributes);
1899   }
1900
1901   /**
1902    * Add a currency and money element to the form.
1903    *
1904    * @param string $name
1905    * @param string $label
1906    * @param bool $required
1907    * @param null $attributes
1908    * @param bool $addCurrency
1909    * @param string $currencyName
1910    * @param null $defaultCurrency
1911    * @param bool $freezeCurrency
1912    *
1913    * @return \HTML_QuickForm_Element
1914    */
1915   public function addMoney(
1916     $name,
1917     $label,
1918     $required = FALSE,
1919     $attributes = NULL,
1920     $addCurrency = TRUE,
1921     $currencyName = 'currency',
1922     $defaultCurrency = NULL,
1923     $freezeCurrency = FALSE
1924   ) {
1925     $element = $this->add('text', $name, $label, $attributes, $required);
1926     $this->addRule($name, ts('Please enter a valid amount.'), 'money');
1927
1928     if ($addCurrency) {
1929       $ele = $this->addCurrency($currencyName, NULL, TRUE, $defaultCurrency, $freezeCurrency);
1930     }
1931
1932     return $element;
1933   }
1934
1935   /**
1936    * Add currency element to the form.
1937    *
1938    * @param string $name
1939    * @param null $label
1940    * @param bool $required
1941    * @param string $defaultCurrency
1942    * @param bool $freezeCurrency
1943    * @param bool $setDefaultCurrency
1944    */
1945   public function addCurrency(
1946     $name = 'currency',
1947     $label = NULL,
1948     $required = TRUE,
1949     $defaultCurrency = NULL,
1950     $freezeCurrency = FALSE,
1951     $setDefaultCurrency = TRUE
1952   ) {
1953     $currencies = CRM_Core_OptionGroup::values('currencies_enabled');
1954     if (!empty($defaultCurrency) && !array_key_exists($defaultCurrency, $currencies)) {
1955       Civi::log()->warning('addCurrency: Currency ' . $defaultCurrency . ' is disabled but still in use!');
1956       $currencies[$defaultCurrency] = $defaultCurrency;
1957     }
1958     $options = ['class' => 'crm-select2 eight'];
1959     if (!$required) {
1960       $currencies = ['' => ''] + $currencies;
1961       $options['placeholder'] = ts('- none -');
1962     }
1963     $ele = $this->add('select', $name, $label, $currencies, $required, $options);
1964     if ($freezeCurrency) {
1965       $ele->freeze();
1966     }
1967     if (!$defaultCurrency) {
1968       $config = CRM_Core_Config::singleton();
1969       $defaultCurrency = $config->defaultCurrency;
1970     }
1971     // In some case, setting currency field by default might override the default value
1972     //  as encountered in CRM-20527 for batch data entry
1973     if ($setDefaultCurrency) {
1974       $this->setDefaults([$name => $defaultCurrency]);
1975     }
1976   }
1977
1978   /**
1979    * Create a single or multiple entity ref field.
1980    * @param string $name
1981    * @param string $label
1982    * @param array $props
1983    *   Mix of html and widget properties, including:.
1984    *   - select - params to give to select2 widget
1985    *   - entity - defaults to Contact
1986    *   - create - can the user create a new entity on-the-fly?
1987    *             Set to TRUE if entity is contact and you want the default profiles,
1988    *             or pass in your own set of links. @see CRM_Campaign_BAO_Campaign::getEntityRefCreateLinks for format
1989    *             note that permissions are checked automatically
1990    *   - api - array of settings for the getlist api wrapper
1991    *          note that it accepts a 'params' setting which will be passed to the underlying api
1992    *   - placeholder - string
1993    *   - multiple - bool
1994    *   - class, etc. - other html properties
1995    * @param bool $required
1996    *
1997    * @return HTML_QuickForm_Element
1998    */
1999   public function addEntityRef($name, $label = '', $props = [], $required = FALSE) {
2000     // Default properties
2001     $props['api'] = CRM_Utils_Array::value('api', $props, []);
2002     $props['entity'] = CRM_Utils_String::convertStringToCamel(CRM_Utils_Array::value('entity', $props, 'Contact'));
2003     $props['class'] = ltrim(CRM_Utils_Array::value('class', $props, '') . ' crm-form-entityref');
2004
2005     if (array_key_exists('create', $props) && empty($props['create'])) {
2006       unset($props['create']);
2007     }
2008
2009     $props['placeholder'] = CRM_Utils_Array::value('placeholder', $props, $required ? ts('- select %1 -', [1 => ts(str_replace('_', ' ', $props['entity']))]) : ts('- none -'));
2010
2011     $defaults = [];
2012     if (!empty($props['multiple'])) {
2013       $defaults['multiple'] = TRUE;
2014     }
2015     $props['select'] = CRM_Utils_Array::value('select', $props, []) + $defaults;
2016
2017     $this->formatReferenceFieldAttributes($props, get_class($this));
2018     return $this->add('text', $name, $label, $props, $required);
2019   }
2020
2021   /**
2022    * @param array $props
2023    * @param string $formName
2024    */
2025   private function formatReferenceFieldAttributes(&$props, $formName) {
2026     CRM_Utils_Hook::alterEntityRefParams($props, $formName);
2027     $props['data-select-params'] = json_encode($props['select']);
2028     $props['data-api-params'] = $props['api'] ? json_encode($props['api']) : NULL;
2029     $props['data-api-entity'] = $props['entity'];
2030     if (!empty($props['create'])) {
2031       $props['data-create-links'] = json_encode($props['create']);
2032     }
2033     CRM_Utils_Array::remove($props, 'multiple', 'select', 'api', 'entity', 'create');
2034   }
2035
2036   /**
2037    * Convert all date fields within the params to mysql date ready for the
2038    * BAO layer. In this case fields are checked against the $_datefields defined for the form
2039    * and if time is defined it is incorporated
2040    *
2041    * @param array $params
2042    *   Input params from the form.
2043    *
2044    * @todo it would probably be better to work on $this->_params than a passed array
2045    * @todo standardise the format which dates are passed to the BAO layer in & remove date
2046    * handling from BAO
2047    */
2048   public function convertDateFieldsToMySQL(&$params) {
2049     foreach ($this->_dateFields as $fieldName => $specs) {
2050       if (!empty($params[$fieldName])) {
2051         $params[$fieldName] = CRM_Utils_Date::isoToMysql(
2052           CRM_Utils_Date::processDate(
2053             $params[$fieldName],
2054             CRM_Utils_Array::value("{$fieldName}_time", $params), TRUE)
2055         );
2056       }
2057       else {
2058         if (isset($specs['default'])) {
2059           $params[$fieldName] = date('YmdHis', strtotime($specs['default']));
2060         }
2061       }
2062     }
2063   }
2064
2065   /**
2066    * @param $elementName
2067    */
2068   public function removeFileRequiredRules($elementName) {
2069     $this->_required = array_diff($this->_required, [$elementName]);
2070     if (isset($this->_rules[$elementName])) {
2071       foreach ($this->_rules[$elementName] as $index => $ruleInfo) {
2072         if ($ruleInfo['type'] == 'uploadedfile') {
2073           unset($this->_rules[$elementName][$index]);
2074         }
2075       }
2076       if (empty($this->_rules[$elementName])) {
2077         unset($this->_rules[$elementName]);
2078       }
2079     }
2080   }
2081
2082   /**
2083    * Function that can be defined in Form to override or.
2084    * perform specific action on cancel action
2085    */
2086   public function cancelAction() {
2087   }
2088
2089   /**
2090    * Helper function to verify that required fields have been filled.
2091    *
2092    * Typically called within the scope of a FormRule function
2093    *
2094    * @param array $fields
2095    * @param array $values
2096    * @param array $errors
2097    */
2098   public static function validateMandatoryFields($fields, $values, &$errors) {
2099     foreach ($fields as $name => $fld) {
2100       if (!empty($fld['is_required']) && CRM_Utils_System::isNull(CRM_Utils_Array::value($name, $values))) {
2101         $errors[$name] = ts('%1 is a required field.', [1 => $fld['title']]);
2102       }
2103     }
2104   }
2105
2106   /**
2107    * Get contact if for a form object. Prioritise
2108    *   - cid in URL if 0 (on behalf on someoneelse)
2109    *      (@todo consider setting a variable if onbehalf for clarity of downstream 'if's
2110    *   - logged in user id if it matches the one in the cid in the URL
2111    *   - contact id validated from a checksum from a checksum
2112    *   - cid from the url if the caller has ACL permission to view
2113    *   - fallback is logged in user (or ? NULL if no logged in user) (@todo wouldn't 0 be more intuitive?)
2114    *
2115    * @return NULL|int
2116    */
2117   protected function setContactID() {
2118     $tempID = CRM_Utils_Request::retrieve('cid', 'Positive', $this);
2119     if (isset($this->_params) && !empty($this->_params['select_contact_id'])) {
2120       $tempID = $this->_params['select_contact_id'];
2121     }
2122     if (isset($this->_params, $this->_params[0]) && !empty($this->_params[0]['select_contact_id'])) {
2123       // event form stores as an indexed array, contribution form not so much...
2124       $tempID = $this->_params[0]['select_contact_id'];
2125     }
2126
2127     // force to ignore the authenticated user
2128     if ($tempID === '0' || $tempID === 0) {
2129       // we set the cid on the form so that this will be retained for the Confirm page
2130       // in the multi-page form & prevent us returning the $userID when this is called
2131       // from that page
2132       // we don't really need to set it when $tempID is set because the params have that stored
2133       $this->set('cid', 0);
2134       CRM_Core_Resources::singleton()->addVars('coreForm', ['contact_id' => (int) $tempID]);
2135       return (int) $tempID;
2136     }
2137
2138     $userID = $this->getLoggedInUserContactID();
2139
2140     if (!is_null($tempID) && $tempID === $userID) {
2141       CRM_Core_Resources::singleton()->addVars('coreForm', ['contact_id' => (int) $tempID]);
2142       return (int) $userID;
2143     }
2144
2145     //check if this is a checksum authentication
2146     $userChecksum = CRM_Utils_Request::retrieve('cs', 'String', $this);
2147     if ($userChecksum) {
2148       //check for anonymous user.
2149       $validUser = CRM_Contact_BAO_Contact_Utils::validChecksum($tempID, $userChecksum);
2150       if ($validUser) {
2151         CRM_Core_Resources::singleton()->addVars('coreForm', ['contact_id' => (int) $tempID]);
2152         CRM_Core_Resources::singleton()->addVars('coreForm', ['checksum' => $userChecksum]);
2153         return $tempID;
2154       }
2155     }
2156     // check if user has permission, CRM-12062
2157     elseif ($tempID && CRM_Contact_BAO_Contact_Permission::allow($tempID)) {
2158       CRM_Core_Resources::singleton()->addVars('coreForm', ['contact_id' => (int) $tempID]);
2159       return $tempID;
2160     }
2161     if (is_numeric($userID)) {
2162       CRM_Core_Resources::singleton()->addVars('coreForm', ['contact_id' => (int) $userID]);
2163     }
2164     return is_numeric($userID) ? $userID : NULL;
2165   }
2166
2167   /**
2168    * Get the contact id that the form is being submitted for.
2169    *
2170    * @return int|null
2171    */
2172   public function getContactID() {
2173     return $this->setContactID();
2174   }
2175
2176   /**
2177    * Get the contact id of the logged in user.
2178    */
2179   public function getLoggedInUserContactID() {
2180     // check if the user is logged in and has a contact ID
2181     $session = CRM_Core_Session::singleton();
2182     return $session->get('userID');
2183   }
2184
2185   /**
2186    * Add autoselector field -if user has permission to view contacts
2187    * If adding this to a form you also need to add to the tpl e.g
2188    *
2189    * {if !empty($selectable)}
2190    * <div class="crm-summary-row">
2191    *   <div class="crm-label">{$form.select_contact.label}</div>
2192    *   <div class="crm-content">
2193    *     {$form.select_contact.html}
2194    *   </div>
2195    * </div>
2196    * {/if}
2197    *
2198    * @param array $profiles
2199    *   Ids of profiles that are on the form (to be autofilled).
2200    * @param array $autoCompleteField
2201    *
2202    *   - name_field
2203    *   - id_field
2204    *   - url (for ajax lookup)
2205    *
2206    * @todo add data attributes so we can deal with multiple instances on a form
2207    */
2208   public function addAutoSelector($profiles = [], $autoCompleteField = []) {
2209     $autoCompleteField = array_merge([
2210       'id_field' => 'select_contact_id',
2211       'placeholder' => ts('Select someone else ...'),
2212       'show_hide' => TRUE,
2213       'api' => ['params' => ['contact_type' => 'Individual']],
2214     ], $autoCompleteField);
2215
2216     if ($this->canUseAjaxContactLookups()) {
2217       $this->assign('selectable', $autoCompleteField['id_field']);
2218       $this->addEntityRef($autoCompleteField['id_field'], NULL, [
2219         'placeholder' => $autoCompleteField['placeholder'],
2220         'api' => $autoCompleteField['api'],
2221       ]);
2222
2223       CRM_Core_Resources::singleton()->addScriptFile('civicrm', 'js/AlternateContactSelector.js', 1, 'html-header')
2224         ->addSetting([
2225           'form' => ['autocompletes' => $autoCompleteField],
2226           'ids' => ['profile' => $profiles],
2227         ]);
2228     }
2229   }
2230
2231   /**
2232    */
2233   public function canUseAjaxContactLookups() {
2234     if (0 < (civicrm_api3('contact', 'getcount', ['check_permissions' => 1])) &&
2235       CRM_Core_Permission::check([['access AJAX API', 'access CiviCRM']])
2236     ) {
2237       return TRUE;
2238     }
2239   }
2240
2241   /**
2242    * Add the options appropriate to cid = zero - ie. autocomplete
2243    *
2244    * @todo there is considerable code duplication between the contribution forms & event forms. It is apparent
2245    * that small pieces of duplication are not being refactored into separate functions because their only shared parent
2246    * is this form. Inserting a class FrontEndForm.php between the contribution & event & this class would allow functions like this
2247    * and a dozen other small ones to be refactored into a shared parent with the reduction of much code duplication
2248    */
2249   public function addCIDZeroOptions() {
2250     $this->assign('nocid', TRUE);
2251     $profiles = [];
2252     if ($this->_values['custom_pre_id']) {
2253       $profiles[] = $this->_values['custom_pre_id'];
2254     }
2255     if ($this->_values['custom_post_id']) {
2256       $profiles = array_merge($profiles, (array) $this->_values['custom_post_id']);
2257     }
2258     $profiles[] = 'billing';
2259     if (!empty($this->_values)) {
2260       $this->addAutoSelector($profiles);
2261     }
2262   }
2263
2264   /**
2265    * Set default values on form for given contact (or no contact defaults)
2266    *
2267    * @param mixed $profile_id
2268    *   (can be id, or profile name).
2269    * @param int $contactID
2270    *
2271    * @return array
2272    */
2273   public function getProfileDefaults($profile_id = 'Billing', $contactID = NULL) {
2274     try {
2275       $defaults = civicrm_api3('profile', 'getsingle', [
2276         'profile_id' => (array) $profile_id,
2277         'contact_id' => $contactID,
2278       ]);
2279       return $defaults;
2280     }
2281     catch (Exception $e) {
2282       // the try catch block gives us silent failure -not 100% sure this is a good idea
2283       // as silent failures are often worse than noisy ones
2284       return [];
2285     }
2286   }
2287
2288   /**
2289    * Sets form attribute.
2290    * @see CRM.loadForm
2291    */
2292   public function preventAjaxSubmit() {
2293     $this->setAttribute('data-no-ajax-submit', 'true');
2294   }
2295
2296   /**
2297    * Sets form attribute.
2298    * @see CRM.loadForm
2299    */
2300   public function allowAjaxSubmit() {
2301     $this->removeAttribute('data-no-ajax-submit');
2302   }
2303
2304   /**
2305    * Sets page title based on entity and action.
2306    * @param string $entityLabel
2307    */
2308   public function setPageTitle($entityLabel) {
2309     switch ($this->_action) {
2310       case CRM_Core_Action::ADD:
2311         CRM_Utils_System::setTitle(ts('New %1', [1 => $entityLabel]));
2312         break;
2313
2314       case CRM_Core_Action::UPDATE:
2315         CRM_Utils_System::setTitle(ts('Edit %1', [1 => $entityLabel]));
2316         break;
2317
2318       case CRM_Core_Action::VIEW:
2319       case CRM_Core_Action::PREVIEW:
2320         CRM_Utils_System::setTitle(ts('View %1', [1 => $entityLabel]));
2321         break;
2322
2323       case CRM_Core_Action::DELETE:
2324         CRM_Utils_System::setTitle(ts('Delete %1', [1 => $entityLabel]));
2325         break;
2326     }
2327   }
2328
2329   /**
2330    * Create a chain-select target field. All settings are optional; the defaults usually work.
2331    *
2332    * @param string $elementName
2333    * @param array $settings
2334    *
2335    * @return HTML_QuickForm_Element
2336    */
2337   public function addChainSelect($elementName, $settings = []) {
2338     $props = $settings += [
2339       'control_field' => str_replace(['state_province', 'StateProvince', 'county', 'County'], [
2340         'country',
2341         'Country',
2342         'state_province',
2343         'StateProvince',
2344       ], $elementName),
2345       'data-callback' => strpos($elementName, 'rovince') ? 'civicrm/ajax/jqState' : 'civicrm/ajax/jqCounty',
2346       'label' => strpos($elementName, 'rovince') ? ts('State/Province') : ts('County'),
2347       'data-empty-prompt' => strpos($elementName, 'rovince') ? ts('Choose country first') : ts('Choose state first'),
2348       'data-none-prompt' => ts('- N/A -'),
2349       'multiple' => FALSE,
2350       'required' => FALSE,
2351       'placeholder' => empty($settings['required']) ? ts('- none -') : ts('- select -'),
2352     ];
2353     CRM_Utils_Array::remove($props, 'label', 'required', 'control_field', 'context');
2354     $props['class'] = (empty($props['class']) ? '' : "{$props['class']} ") . 'crm-select2';
2355     $props['data-select-prompt'] = $props['placeholder'];
2356     $props['data-name'] = $elementName;
2357
2358     $this->_chainSelectFields[$settings['control_field']] = $elementName;
2359
2360     // Passing NULL instead of an array of options
2361     // CRM-15225 - normally QF will reject any selected values that are not part of the field's options, but due to a
2362     // quirk in our patched version of HTML_QuickForm_select, this doesn't happen if the options are NULL
2363     // which seems a bit dirty but it allows our dynamically-popuplated select element to function as expected.
2364     return $this->add('select', $elementName, $settings['label'], NULL, $settings['required'], $props);
2365   }
2366
2367   /**
2368    * Add actions menu to results form.
2369    *
2370    * @param array $tasks
2371    */
2372   public function addTaskMenu($tasks) {
2373     if (is_array($tasks) && !empty($tasks)) {
2374       // Set constants means this will always load with an empty value, not reloading any submitted value.
2375       // This is appropriate as it is a pseudofield.
2376       $this->setConstants(['task' => '']);
2377       $this->assign('taskMetaData', $tasks);
2378       $select = $this->add('select', 'task', NULL, ['' => ts('Actions')], FALSE, [
2379         'class' => 'crm-select2 crm-action-menu fa-check-circle-o huge crm-search-result-actions',
2380       ]
2381       );
2382       foreach ($tasks as $key => $task) {
2383         $attributes = [];
2384         if (isset($task['data'])) {
2385           foreach ($task['data'] as $dataKey => $dataValue) {
2386             $attributes['data-' . $dataKey] = $dataValue;
2387           }
2388         }
2389         $select->addOption($task['title'], $key, $attributes);
2390       }
2391       if (empty($this->_actionButtonName)) {
2392         $this->_actionButtonName = $this->getButtonName('next', 'action');
2393       }
2394       $this->assign('actionButtonName', $this->_actionButtonName);
2395       $this->add('submit', $this->_actionButtonName, ts('Go'), ['class' => 'hiddenElement crm-search-go-button']);
2396
2397       // Radio to choose "All items" or "Selected items only"
2398       $selectedRowsRadio = $this->addElement('radio', 'radio_ts', NULL, '', 'ts_sel', ['checked' => 'checked']);
2399       $allRowsRadio = $this->addElement('radio', 'radio_ts', NULL, '', 'ts_all');
2400       $this->assign('ts_sel_id', $selectedRowsRadio->_attributes['id']);
2401       $this->assign('ts_all_id', $allRowsRadio->_attributes['id']);
2402
2403       CRM_Core_Resources::singleton()->addScriptFile('civicrm', 'js/crm.searchForm.js', 1, 'html-header');
2404     }
2405   }
2406
2407   /**
2408    * Set options and attributes for chain select fields based on the controlling field's value
2409    */
2410   private function preProcessChainSelectFields() {
2411     foreach ($this->_chainSelectFields as $control => $target) {
2412       // The 'target' might get missing if extensions do removeElement() in a form hook.
2413       if ($this->elementExists($target)) {
2414         $targetField = $this->getElement($target);
2415         $targetType = $targetField->getAttribute('data-callback') == 'civicrm/ajax/jqCounty' ? 'county' : 'stateProvince';
2416         $options = [];
2417         // If the control field is on the form, setup chain-select and dynamically populate options
2418         if ($this->elementExists($control)) {
2419           $controlField = $this->getElement($control);
2420           $controlType = $targetType == 'county' ? 'stateProvince' : 'country';
2421
2422           $targetField->setAttribute('class', $targetField->getAttribute('class') . ' crm-chain-select-target');
2423
2424           $css = (string) $controlField->getAttribute('class');
2425           $controlField->updateAttributes([
2426             'class' => ($css ? "$css " : 'crm-select2 ') . 'crm-chain-select-control',
2427             'data-target' => $target,
2428           ]);
2429           $controlValue = $controlField->getValue();
2430           if ($controlValue) {
2431             $options = CRM_Core_BAO_Location::getChainSelectValues($controlValue, $controlType, TRUE);
2432             if (!$options) {
2433               $targetField->setAttribute('placeholder', $targetField->getAttribute('data-none-prompt'));
2434             }
2435           }
2436           else {
2437             $targetField->setAttribute('placeholder', $targetField->getAttribute('data-empty-prompt'));
2438             $targetField->setAttribute('disabled', 'disabled');
2439           }
2440         }
2441         // Control field not present - fall back to loading default options
2442         else {
2443           $options = CRM_Core_PseudoConstant::$targetType();
2444         }
2445         if (!$targetField->getAttribute('multiple')) {
2446           $options = ['' => $targetField->getAttribute('placeholder')] + $options;
2447           $targetField->removeAttribute('placeholder');
2448         }
2449         $targetField->_options = [];
2450         $targetField->loadArray($options);
2451       }
2452     }
2453   }
2454
2455   /**
2456    * Validate country / state / county match and suppress unwanted "required" errors
2457    */
2458   private function validateChainSelectFields() {
2459     foreach ($this->_chainSelectFields as $control => $target) {
2460       if ($this->elementExists($control) && $this->elementExists($target)) {
2461         $controlValue = (array) $this->getElementValue($control);
2462         $targetField = $this->getElement($target);
2463         $controlType = $targetField->getAttribute('data-callback') == 'civicrm/ajax/jqCounty' ? 'stateProvince' : 'country';
2464         $targetValue = array_filter((array) $targetField->getValue());
2465         if ($targetValue || $this->getElementError($target)) {
2466           $options = CRM_Core_BAO_Location::getChainSelectValues($controlValue, $controlType, TRUE);
2467           if ($targetValue) {
2468             if (!array_intersect($targetValue, array_keys($options))) {
2469               $this->setElementError($target, $controlType == 'country' ? ts('State/Province does not match the selected Country') : ts('County does not match the selected State/Province'));
2470             }
2471           }
2472           // Suppress "required" error for field if it has no options
2473           elseif (!$options) {
2474             $this->setElementError($target, NULL);
2475           }
2476         }
2477       }
2478     }
2479   }
2480
2481   /**
2482    * Assign billing name to the template.
2483    *
2484    * @param array $params
2485    *   Form input params, default to $this->_params.
2486    *
2487    * @return string
2488    */
2489   public function assignBillingName($params = []) {
2490     $name = '';
2491     if (empty($params)) {
2492       $params = $this->_params;
2493     }
2494     if (!empty($params['billing_first_name'])) {
2495       $name = $params['billing_first_name'];
2496     }
2497
2498     if (!empty($params['billing_middle_name'])) {
2499       $name .= " {$params['billing_middle_name']}";
2500     }
2501
2502     if (!empty($params['billing_last_name'])) {
2503       $name .= " {$params['billing_last_name']}";
2504     }
2505     $name = trim($name);
2506     $this->assign('billingName', $name);
2507     return $name;
2508   }
2509
2510   /**
2511    * Get the currency for the form.
2512    *
2513    * @todo this should be overriden on the forms rather than having this
2514    * historic, possible handling in here. As we clean that up we should
2515    * add deprecation notices into here.
2516    *
2517    * @param array $submittedValues
2518    *   Array allowed so forms inheriting this class do not break.
2519    *   Ideally we would make a clear standard around how submitted values
2520    *   are stored (is $this->_values consistently doing that?).
2521    *
2522    * @return string
2523    */
2524   public function getCurrency($submittedValues = []) {
2525     $currency = $this->_values['currency'] ?? NULL;
2526     // For event forms, currency is in a different spot
2527     if (empty($currency)) {
2528       $currency = CRM_Utils_Array::value('currency', CRM_Utils_Array::value('event', $this->_values));
2529     }
2530     if (empty($currency)) {
2531       $currency = CRM_Utils_Request::retrieveValue('currency', 'String');
2532     }
2533     // @todo If empty there is a problem - we should probably put in a deprecation notice
2534     // to warn if that seems to be happening.
2535     return $currency;
2536   }
2537
2538   /**
2539    * Is the form in view or edit mode.
2540    *
2541    * The 'addField' function relies on the form action being one of a set list
2542    * of actions. Checking for these allows for an early return.
2543    *
2544    * @return bool
2545    */
2546   protected function isFormInViewOrEditMode() {
2547     return in_array($this->_action, [
2548       CRM_Core_Action::UPDATE,
2549       CRM_Core_Action::ADD,
2550       CRM_Core_Action::VIEW,
2551       CRM_Core_Action::BROWSE,
2552       CRM_Core_Action::BASIC,
2553       CRM_Core_Action::ADVANCED,
2554       CRM_Core_Action::PREVIEW,
2555     ]);
2556   }
2557
2558 }