phorge-phorge/src/applications/draft/storage/PhabricatorDraft.php

<?php

/*
 * Copyright 2012 Facebook, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

final class PhabricatorDraft extends PhabricatorDraftDAO {

  protected $authorPHID;
  protected $draftKey;
  protected $draft;
  protected $metadata = array();

  public function getConfiguration() {
    return array(
      self::CONFIG_SERIALIZATION => array(
        'metadata' => self::SERIALIZATION_JSON,
      ),
    ) + parent::getConfiguration();
  }

  public function replaceOrDelete() {
    if ($this->draft == '' && !array_filter($this->metadata)) {
      queryfx(
        $this->establishConnection('w'),
        'DELETE FROM %T WHERE authorPHID = %s AND draftKey = %s',
        $this->getTableName(),
        $this->authorPHID,
        $this->draftKey);
      return $this;
    }
    return parent::replace();
  }

}