/**
* Retrieve table foreign keys definition array for create table
*
* @param Table $table
* @return string[]
*/
protected function _getForeignKeysDefinition(Table $table)
{
$definition = array();
$relations = $table->getForeignKeys();
if (!empty($relations)) {
foreach ($relations as $fkData) {
$onDelete = $this->_getDdlAction($fkData['ON_DELETE']);
$onUpdate = $this->_getDdlAction($fkData['ON_UPDATE']);
$definition[] = sprintf(' CONSTRAINT %s FOREIGN KEY (%s) REFERENCES %s (%s) ON DELETE %s ON UPDATE %s', $this->quoteIdentifier($fkData['FK_NAME']), $this->quoteIdentifier($fkData['COLUMN_NAME']), $this->quoteIdentifier($fkData['REF_TABLE_NAME']), $this->quoteIdentifier($fkData['REF_COLUMN_NAME']), $onDelete, $onUpdate);
}
}
return $definition;
}
/**
* drops all keys and then recreates them
*
* @param string $mode
* @param Table $table
* @throws \Zend_Db_Exception
*/
private function migrateKeys($mode, Table $table)
{
switch ($mode) {
case 'refresh_idx':
foreach ($this->getIndexList($table->getName()) as $index) {
if ($index['KEY_NAME'] !== 'PRIMARY') {
$this->dropIndex($table->getName(), $index['KEY_NAME']);
}
}
foreach ($table->getIndexes() as $index) {
$ic = [];
foreach ($index['COLUMNS'] as $c) {
$ic[] = $c['NAME'];
}
$this->addIndex($table->getName(), $index['INDEX_NAME'], $ic, $index['TYPE']);
}
break;
case 'refresh_fk':
foreach ($this->getForeignKeys($table->getName()) as $fk) {
$this->dropForeignKey($table->getName(), $fk['FK_NAME']);
}
foreach ($table->getForeignKeys() as $fk) {
$this->addForeignKey($fk['FK_NAME'], $table->getName(), $fk['COLUMN_NAME'], $fk['REF_TABLE_NAME'], $fk['REF_COLUMN_NAME'], $fk['ON_DELETE'], $fk['ON_UPDATE']);
}
break;
}
}