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<?php
class TActiveRecordRelationContext
{
const RELATIONS_CONST = 'RELATIONS';
private $_property;
private $_sourceRecord;
private $_criteria;
private $_relation;
public function __construct($source, $property, $criteria)
{
$this->_sourceRecord=$source;
$this->_property=$property;
$this->_criteria=$criteria;
$this->_relation = $this->getSourceRecordRelation($property);
}
/**
* @param string relation property name
* @return array relation definition.
*/
protected function getSourceRecordRelation($property)
{
$class = new ReflectionClass($this->_sourceRecord);
$statics = $class->getStaticProperties();
if(!isset($statics[self::RELATIONS_CONST]))
throw new TActiveRecordException('ar_relations_undefined',
get_class($this->_sourceRecord), self::RELATIONS_CONST);
if(isset($statics[self::RELATIONS_CONST][$property]))
return $statics[self::RELATIONS_CONST][$property];
else
throw new TActiveRecordException('ar_undefined_relation_prop',
$property, get_class($this->_sourceRecord), self::RELATIONS_CONST);
}
public function getProperty()
{
return $this->_property;
}
public function getCriteria()
{
return $this->_criteria;
}
public function getSourceRecord()
{
return $this->_sourceRecord;
}
public function getForeignRecordClass()
{
return $this->_relation[1];
}
public function getRelationType()
{
return $this->_relation[0];
}
public function getAssociationTable()
{
return $this->_relation[2];
}
public function hasAssociationTable()
{
return isset($this->_relation[2]);
}
public function getForeignRecordFinder()
{
return TActiveRecord::finder($this->getForeignRecordClass());
}
public function getRelationHandler()
{
switch($this->getRelationType())
{
case TActiveRecord::HAS_MANY:
if(!$this->hasAssociationTable())
{
Prado::using('System.Data.ActiveRecord.Relations.TActiveRecordHasMany');
return new TActiveRecordHasMany($this);
}
else
{
Prado::using('System.Data.ActiveRecord.Relations.TActiveRecordHasManyAssociation');
return new TActiveRecordHasManyAssociation($this);
}
case TActiveRecord::HAS_ONE:
Prado::using('System.Data.ActiveRecord.Relations.TActiveRecordHasOne');
return new TActiveRecordHasOne($this);
case TActiveRecord::BELONGS_TO:
Prado::using('System.Data.ActiveRecord.Relations.TActiveRecordBelongsTo');
return new TActiveRecordBelongsTo($this);
default:
throw new TException('Not done yet');
}
}
}
?>
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