.
*/
namespace Doctrine\ORM\Mapping;
/**
* A many-to-many mapping describes the mapping between two collections of
* entities.
*
* IMPORTANT NOTE:
*
* The fields of this class are only public for 2 reasons:
* 1) To allow fast, internal READ access.
* 2) To drastically reduce the size of a serialized instance (private/protected members
* get the whole class name, namespace inclusive, prepended to every property in
* the serialized representation).
*
* @since 2.0
* @author Roman Borschel
*/
class ManyToManyMapping extends AssociationMapping
{
/**
* The key columns of the source table.
*/
public $sourceKeyColumns = array();
/**
* The key columns of the target table.
*/
public $targetKeyColumns = array();
/**
* Maps the columns in the source table to the columns in the relation table.
*/
public $sourceToRelationKeyColumns = array();
/**
* Maps the columns in the target table to the columns in the relation table.
*/
public $targetToRelationKeyColumns = array();
/**
* The columns on the join table.
*/
public $joinTableColumns = array();
/** FUTURE: The key column mapping, if any. The key column holds the keys of the Collection. */
//public $keyColumn;
/**
* Initializes a new ManyToManyMapping.
*
* @param array $mapping The mapping information.
*/
public function __construct(array $mapping)
{
parent::__construct($mapping);
}
/**
* Validates and completes the mapping.
*
* @param array $mapping
* @override
*/
protected function _validateAndCompleteMapping(array $mapping)
{
parent::_validateAndCompleteMapping($mapping);
if ($this->isOwningSide()) {
// owning side MUST have a join table
if ( ! isset($mapping['joinTable'])) {
throw MappingException::joinTableRequired($mapping['fieldName']);
}
// owning side MUST specify joinColumns
if ( ! isset($mapping['joinTable']['joinColumns'])) {
throw MappingException::invalidMapping($this->_sourceFieldName);
}
foreach ($mapping['joinTable']['joinColumns'] as $joinColumn) {
$this->sourceToRelationKeyColumns[$joinColumn['referencedColumnName']] = $joinColumn['name'];
$this->joinTableColumns[] = $joinColumn['name'];
}
$this->sourceKeyColumns = array_keys($this->sourceToRelationKeyColumns);
// owning side MUST specify inverseJoinColumns
if ( ! isset($mapping['joinTable']['inverseJoinColumns'])) {
throw MappingException::invalidMapping($this->_sourceFieldName);
}
foreach ($mapping['joinTable']['inverseJoinColumns'] as $inverseJoinColumn) {
$this->targetToRelationKeyColumns[$inverseJoinColumn['referencedColumnName']] = $inverseJoinColumn['name'];
$this->joinTableColumns[] = $inverseJoinColumn['name'];
}
$this->targetKeyColumns = array_keys($this->targetToRelationKeyColumns);
}
}
public function getJoinTableColumns()
{
return $this->joinTableColumns;
}
public function getSourceToRelationKeyColumns()
{
return $this->sourceToRelationKeyColumns;
}
public function getTargetToRelationKeyColumns()
{
return $this->targetToRelationKeyColumns;
}
public function getSourceKeyColumns()
{
return $this->sourceKeyColumns;
}
public function getTargetKeyColumns()
{
return $this->targetKeyColumns;
}
public function load($owningEntity, $targetEntity, $em)
{
throw new Exception('Not yet implemented.');
}
/**
* {@inheritdoc}
*
* @override
*/
public function isManyToMany()
{
return true;
}
}