/**
* Return list of relations for current model
* @return array
*/
public static function getRelations()
{
$old = parent::getRelations();
unset($old['replies']);
$old['parent'] = [DbRelations::BELONGS_TO, '\\mpf\\modules\\forum\\models\\ForumReplySeventh', 'reply_id'];
$old['replies'] = DbRelation::hasMany(ForumReplyNth::className())->columnsEqual('id', 'reply_id')->hasValue('level', 9);
$old['myVote'] = DbRelation::hasOne(ForumReplyVote::className())->columnsEqual('id', 'reply_id')->hasValue('level', 8)->hasValue('user_id', WebApp::get()->user()->isConnected() ? WebApp::get()->user()->id : 0);
return $old;
}
/**
* @param $path
* @param DbRelation $parentRelation
* @return DbRelation
*/
protected function initSubRelation($path, DbRelation $parentRelation)
{
$modelClass = $parentRelation->model;
$relations = $modelClass::getRelations();
$name = explode('.', $path);
$name = $name[count($name) - 1];
$relation = $relations[$name];
if (is_array($relation)) {
$details = $relation;
$relationClass = $details[1];
switch ($details[0]) {
case DbRelations::BELONGS_TO:
$relation = DbRelation::belongsTo($details[1], $details[2]);
break;
case DbRelations::HAS_ONE:
$relation = DbRelation::hasOne($details[1])->columnsEqual($modelClass::getDb()->getTablePk($modelClass::getTableName()), $details[2]);
break;
case DbRelations::HAS_MANY:
$relation = DbRelation::hasMany($details[1])->columnsEqual($modelClass::getDb()->getTablePk($modelClass::getTableName()), $details[2]);
break;
case DbRelations::MANY_TO_MANY:
//table_name(model_column, relation_column)
list($tableName, $columns) = explode("(", $details[2]);
$columns = explode(',', substr($columns, 0, strlen($columns) - 1));
$relation = DbRelation::manyToMany($details[1])->join([$tableName => $name . '_' . $tableName], [$modelClass::getDb()->getTablePk($modelClass::getTableName()) => trim($columns[0])])->columnsEqual($name . '_' . $tableName . '.' . trim($columns[1]), $relationClass::getDb()->getTablePk($relationClass::getTableName()));
break;
default:
trigger_error("Invalid relation type {$details[0]}!");
}
}
return $relation;
}