/**
* @return string
*/
protected function createDeleteTrigger()
{
$name = $this->trigger('delete');
$primaryKey = $this->sqlHelper->extractPrimaryKey($this->origin);
if (empty($primaryKey)) {
throw new \RuntimeException("Table `{$this->origin->getName()}` does not have a primary key.");
}
$primaryKey = $this->sqlHelper->quoteColumn($primaryKey);
$originName = $this->adapter->quoteTableName($this->origin->getName());
$destinationName = $this->adapter->quoteTableName($this->destination->getName());
return implode("\n ", ["CREATE TRIGGER {$name}", "AFTER DELETE ON {$originName} FOR EACH ROW", "DELETE IGNORE FROM {$destinationName} {$this->sqlHelper->annotation()}", "WHERE {$destinationName}.{$primaryKey} = OLD.{$primaryKey}"]);
}
public function testAnnotation()
{
$this->assertEquals("/* large hadron migration (php) */", $this->helper->annotation());
}