PHP CRM_Report_Form::customDataFrom示例

 function customDataFrom()
 {
     parent::customDataFrom();
     $params = array('name' => 'HRJobContract_Summary');
     CRM_Core_DAO::commonRetrieve('CRM_Core_DAO_CustomGroup', $params, $cGrp);
     if (!$this->isFieldSelected($this->_columns[$cGrp['table_name']])) {
         $mapper = CRM_Core_BAO_CustomQuery::$extendsMap;
         $extendsTable = $mapper[$cGrp['extends']];
         $baseJoin = CRM_Utils_Array::value($cGrp['extends'], $this->_customGroupExtendsJoin, "{$this->_aliases[$extendsTable]}.id");
         $this->_from .= " LEFT JOIN {$cGrp['table_name']} {$this->_aliases[$cGrp['table_name']]} ON {$this->_aliases[$cGrp['table_name']]}.entity_id = {$baseJoin}";
     }
 }