protected function _ifNullableChangesThenDeleteForeignKeys(Garp_Spawn_MySql_Column $sourceColumn, array $diffProperties)
{
$source = $this->getSource();
if (in_array('nullable', $diffProperties)) {
foreach ($source->keys->foreignKeys as $fk) {
if ($fk->localColumn === $sourceColumn->name) {
Garp_Spawn_MySql_ForeignKey::delete($source->name, $fk);
$source->keys->droppedForeignKeyNamesDuringColumnSync[] = $fk->name;
break;
}
}
}
}
protected function _removeForeignKeys(array $keysToRemove)
{
$tableName = $this->getSource()->getTableName();
foreach ($keysToRemove as $key) {
if (!(in_array($key->name, $this->droppedForeignKeyNamesDuringColumnSync) || Garp_Spawn_MySql_ForeignKey::delete($tableName, $key))) {
throw new Exception("Could not delete '{$key->localColumn}' foreign key.");
}
}
}
