/**
* Get constraint keys
*
* @param string $constraint
* @param string $table
* @param string $schema
* @return array
*/
public function getConstraintKeys($constraint, $table, $schema = null)
{
if ($schema === null) {
$schema = $this->defaultSchema;
}
$this->loadConstraintData($table, $schema);
// organize references first
$references = array();
foreach ($this->data['constraint_references'][$schema] as $refKeyInfo) {
if ($refKeyInfo['constraint_name'] == $constraint) {
$references[$refKeyInfo['constraint_name']] = $refKeyInfo;
}
}
$keys = array();
foreach ($this->data['constraint_keys'][$schema] as $constraintKeyInfo) {
if ($constraintKeyInfo['table_name'] == $table && $constraintKeyInfo['constraint_name'] === $constraint) {
$keys[] = $key = new Object\ConstraintKeyObject($constraintKeyInfo['column_name']);
$key->setOrdinalPosition($constraintKeyInfo['ordinal_position']);
if (isset($references[$constraint])) {
//$key->setReferencedTableSchema($constraintKeyInfo['referenced_table_schema']);
$key->setForeignKeyUpdateRule($references[$constraint]['update_rule']);
$key->setForeignKeyDeleteRule($references[$constraint]['delete_rule']);
//$key->setReferencedTableSchema($references[$constraint]['referenced_table_schema']);
$key->setReferencedTableName($references[$constraint]['referenced_table_name']);
$key->setReferencedColumnName($references[$constraint]['referenced_column_name']);
}
}
}
return $keys;
}
/**
* Get constraint keys
*
* @param string $constraint
* @param string $table
* @param string $schema
* @param string $database
* @return Object\ConstraintKeyObject
*/
public function getConstraintKeys($constraint, $table, $schema = null)
{
if ($this->constraintData == null) {
$this->loadConstraintData();
}
$found = false;
foreach ($this->constraintData as $tableName => $constraints) {
foreach ($constraints as $constraintData) {
if ($tableName == $table && $constraintData['name'] == $constraint) {
$found = $constraintData;
break 2;
}
}
}
if (!$found) {
throw new \Exception('invalid constraint, or constraint not found');
}
$keys = array();
foreach ($found['keys'] as $keyData) {
$keys[] = $key = new Object\ConstraintKeyObject($keyData['column']);
if ($found['type'] == 'FOREIGN KEY') {
$key->setReferencedTableName($keyData['referenced_table']);
$key->setReferencedColumnName($keyData['referenced_column']);
$key->setForeignKeyUpdateRule($keyData['update_rule']);
$key->setForeignKeyDeleteRule($keyData['delete_rule']);
}
}
return $keys;
}
