/**
* Gather columns and fk constraints that are required for one part of relationship.
*
* @param array $joinColumns
* @param \Doctrine\DBAL\Schema\Table $theJoinTable
* @param ClassMetadata $class
* @param \Doctrine\ORM\Mapping\AssociationMapping $mapping
* @param array $primaryKeyColumns
* @param array $uniqueConstraints
*/
private function _gatherRelationJoinColumns($joinColumns, $theJoinTable, $class, $mapping, &$primaryKeyColumns, &$uniqueConstraints)
{
$localColumns = array();
$foreignColumns = array();
$fkOptions = array();
foreach ($joinColumns as $joinColumn) {
// Note that this thing might be quoted, i.e. `foo`, [foo], ...
$columnName = $mapping->getQuotedJoinColumnName($joinColumn['name'], $this->_platform);
$referencedFieldName = $class->getFieldName($joinColumn['referencedColumnName']);
if (!$class->hasField($referencedFieldName)) {
throw new \Doctrine\Common\DoctrineException("Column name `" . $joinColumn['referencedColumnName'] . "` referenced for relation from " . "{$mapping->sourceEntityName} towards {$mapping->targetEntityName} does not exist.");
}
$primaryKeyColumns[] = $columnName;
$localColumns[] = $columnName;
$foreignColumns[] = $joinColumn['referencedColumnName'];
if (!$theJoinTable->hasColumn($joinColumn['name'])) {
// Only add the column to the table if it does not exist already.
// It might exist already if the foreign key is mapped into a regular
// property as well.
$fieldMapping = $class->getFieldMapping($referencedFieldName);
$columnDef = null;
if (isset($joinColumn['columnDefinition'])) {
$columnDef = $joinColumn['columnDefinition'];
} else {
if (isset($fieldMapping['columnDefinition'])) {
$columnDef = $fieldMapping['columnDefinition'];
}
}
$columnOptions = array('notnull' => false, 'columnDefinition' => $columnDef);
if (isset($joinColumn['nullable'])) {
$columnOptions['notnull'] = !$joinColumn['nullable'];
}
$theJoinTable->createColumn($columnName, $class->getTypeOfColumn($joinColumn['referencedColumnName']), $columnOptions);
}
if (isset($joinColumn['unique']) && $joinColumn['unique'] == true) {
$uniqueConstraints[] = array('columns' => array($columnName));
}
if (isset($joinColumn['onUpdate'])) {
$fkOptions['onUpdate'] = $joinColumn['onUpdate'];
}
if (isset($joinColumn['onDelete'])) {
$fkOptions['onDelete'] = $joinColumn['onDelete'];
}
}
$theJoinTable->addUnnamedForeignKeyConstraint($class->getQuotedTableName($this->_platform), $localColumns, $foreignColumns, $fkOptions);
}