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OptionValue.php
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OptionValue.php
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<?php
/**
* Description of a one-way link between an option-value and an entity
*/
class CRM_Core_Reference_OptionValue extends CRM_Core_Reference_Basic {
/**
* Option group name.
*
* @var string
*/
protected $targetOptionGroupName;
/**
* Target Option Group ID.
*
* @var int|null
*/
protected $targetOptionGroupId;
/**
* @param $refTable
* @param $refKey
* @param null $targetTable
* @param string $targetKey
* @param null $optionGroupName
*/
public function __construct($refTable, $refKey, $targetTable, $targetKey, $optionGroupName) {
parent::__construct($refTable, $refKey, $targetTable, $targetKey, NULL);
$this->targetOptionGroupName = $optionGroupName;
}
/**
* @param CRM_Core_DAO $targetDao
*
* @return null|Object
* @throws CRM_Core_Exception
*/
public function findReferences($targetDao) {
if (!($targetDao instanceof CRM_Core_DAO_OptionValue)) {
throw new CRM_Core_Exception("Mismatched reference: expected OptionValue but received " . get_class($targetDao));
}
if ($targetDao->option_group_id == $this->getTargetOptionGroupId()) {
return parent::findReferences($targetDao);
}
else {
return NULL;
}
}
/**
* Get Reference Count.
*
* @param CRM_Core_DAO $targetDao
*
* @return array|null
* @throws CRM_Core_Exception
*/
public function getReferenceCount($targetDao) {
if (!($targetDao instanceof CRM_Core_DAO_OptionValue)) {
throw new CRM_Core_Exception("Mismatched reference: expected OptionValue but received " . get_class($targetDao));
}
if ($targetDao->option_group_id == $this->getTargetOptionGroupId()) {
return parent::getReferenceCount($targetDao);
}
else {
return NULL;
}
}
/**
* Get target option group ID.
*
* @return int
*/
public function getTargetOptionGroupId() {
if ($this->targetOptionGroupId === NULL) {
$this->targetOptionGroupId = CRM_Core_DAO::getFieldValue('CRM_Core_DAO_OptionGroup', $this->targetOptionGroupName, 'id', 'name');
}
return $this->targetOptionGroupId;
}
}