/ow_plugins/blogs/bol/dao/post_dao.php

<?php



/**

 * This software is intended for use with Oxwall Free Community Software http://www.oxwall.org/ and is

 * licensed under The BSD license.



 * ---

 * Copyright (c) 2011, Oxwall Foundation

 * All rights reserved.



 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the

 * following conditions are met:

 *

 *  - Redistributions of source code must retain the above copyright notice, this list of conditions and

 *  the following disclaimer.

 *

 *  - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and

 *  the following disclaimer in the documentation and/or other materials provided with the distribution.

 *

 *  - Neither the name of the Oxwall Foundation nor the names of its contributors may be used to endorse or promote products

 *  derived from this software without specific prior written permission.



 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,

 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,

 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED

 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */



/**

 * @author Zarif Safiullin <zaph.saph@gmail.com>

 * @package ow_plugins.blogs.bol.dao

 * @since 1.0

 */

class PostDao extends OW_BaseDao

{

    const CACHE_TAG_POST_COUNT = 'blogs.post_count';

    const CACHE_LIFE_TIME = 86400; //24 hour



    /**

     * Class constructor

     *

     */

    protected function __construct()

    {

        parent::__construct();

    }

    /**

     * Class instance

     *

     * @var PostDao

     */

    private static $classInstance;



    /**

     * Returns class instance

     *

     * @return PostDao

     */

    public static function getInstance()

    {

        if ( self::$classInstance === null )

        {

            self::$classInstance = new self();

        }



        return self::$classInstance;

    }



    /**

     * @see OW_BaseDao::getDtoClassName()

     *

     */

    public function getDtoClassName()

    {

        return 'Post';

    }



    /**

     * @see OW_BaseDao::getTableName()

     *

     */

    public function getTableName()

    {

        return OW_DB_PREFIX . 'blogs_post';

    }



    public function findAdjacentUserPost( $id, $postId, $which )

    {

        $part = array();



        switch ( $which )

        {

            case 'next':

                $part['projection'] = 'MIN(`id`)';

                $part['inequality'] = '>';

                break;



            case 'prev':

                $part['projection'] = 'MAX(`id`)';

                $part['inequality'] = '<';

                break;

        }



        $query = "

			SELECT {$part['projection']}

			FROM {$this->getTableName()}

			WHERE isDraft = 0 AND authorId = ? AND id {$part['inequality']} ?

		";



        $id = $this->dbo->queryForColumn($query, array($id, $postId));



        return (!empty($id)) ? $this->findById($id) : null;

    }



    public function deleteByAuthorId( $userId )

    {

        $ex = new OW_Example();

        $ex->andFieldEqual('authorId', $userId);



        $this->deleteByExample($ex);

    }



    public function findUserPostList( $userId, $first, $count )

    {

        if ($first < 0)

        {

            $first = 0;

        }



        if ($count < 0)

        {

            $count = 1;

        }



        $ex = new OW_Example();

        $ex->andFieldEqual('authorId', $userId)

            ->setOrder('`timestamp` DESC')

            ->andFieldEqual('isDraft', 0)

            ->setLimitClause($first, $count);



        $cacheLifeTime = self::CACHE_LIFE_TIME;

        $tags = array( self::CACHE_TAG_POST_COUNT );



        return $this->findListByExample($ex, $cacheLifeTime, $tags);

    }



    public function findUserDraftList( $userId, $first, $count )

    {

        if ($first < 0)

        {

            $first = 0;

        }



        if ($count < 0)

        {

            $count = 1;

        }



        $ex = new OW_Example();

        $ex->andFieldEqual('authorId', $userId)

            ->andFieldNotEqual('isDraft', 0)

            ->setOrder('`timestamp` DESC')

            ->setLimitClause($first, $count);



        $cacheLifeTime = self::CACHE_LIFE_TIME;

        $tags = array( self::CACHE_TAG_POST_COUNT );



        return $this->findListByExample($ex, $cacheLifeTime, $tags);

    }



    public function countUserPost( $userId )

    {

        $ex = new OW_Example();

        $ex->andFieldEqual('authorId', $userId);

        $ex->andFieldEqual('isDraft', 0);



        $cacheLifeTime = self::CACHE_LIFE_TIME;

        $tags = array( self::CACHE_TAG_POST_COUNT );



        return $this->countByExample($ex,$cacheLifeTime, $tags);

    }



    public function countUserDraft( $userId )

    {

        $ex = new OW_Example();

        $ex->andFieldEqual('authorId', $userId);

        $ex->andFieldNotEqual('isDraft', 0);



        $cacheLifeTime = self::CACHE_LIFE_TIME;

        $tags = array( self::CACHE_TAG_POST_COUNT );



        return $this->countByExample($ex, $cacheLifeTime, $tags);

    }



    public function countPosts()

    {

        $ex = new OW_Example();

        $ex->andFieldEqual('isDraft', 0);

        $ex->andFieldEqual('privacy', 'everybody');



        $cacheLifeTime = self::CACHE_LIFE_TIME;

        $tags = array( self::CACHE_TAG_POST_COUNT );



        return $this->countByExample($ex, $cacheLifeTime, $tags);

    }



    public function countUserPostComment( $userId )

    {

        $query = "

		SELECT COUNT(*)

		FROM `{$this->getTableName()}` as `p`

		INNER JOIN `" . BOL_CommentEntityDao::getInstance()->getTableName() . "` as `ce`

			ON( `p`.`id` = `ce`.`entityId` and `entityType` = 'blog-post' )

		INNER JOIN `" . BOL_CommentDao::getInstance()->getTableName() . "` as `c`

			ON( `ce`.`id` = `c`.`commentEntityId` )



		WHERE `p`.`authorId` = ? AND `p`.`isDraft` = 0

		";



        return $this->dbo->queryForColumn($query, array($userId));

    }



    public function countUserPostNewComment( $userId )

    {

        $query = "

		SELECT COUNT(*)

		FROM `{$this->getTableName()}` as `p`

		INNER JOIN `" . BOL_CommentEntityDao::getInstance()->getTableName() . "` as `ce`

			ON( `p`.`id` = `ce`.`entityId` and `entityType` = 'blog-post' )

		INNER JOIN `" . BOL_CommentDao::getInstance()->getTableName() . "` as `c`

			ON( `ce`.`id` = `c`.`commentEntityId` )



		WHERE `p`.`authorId` = ? AND `p`.`isDraft` = 0 AND `c`.`createStamp` > ".(time()-86400*7)."

		";



        return $this->dbo->queryForColumn($query, array($userId));

    }



    public function findUserPostCommentList( $userId, $first, $count )

    {

        if ($first < 0)

        {

            $first = 0;

        }



        if ($count < 0)

        {

            $count = 1;

        }



        $query = "

		SELECT `c`.*, `ce`.`entityId`

		FROM `{$this->getTableName()}` as `p`

		INNER JOIN `" . BOL_CommentEntityDao::getInstance()->getTableName() . "` as `ce`

			ON( `p`.`id` = `ce`.`entityId` and `entityType` = 'blog-post' )

		INNER JOIN `" . BOL_CommentDao::getInstance()->getTableName() . "` as `c`

			ON( `ce`.`id` = `c`.`commentEntityId` )



		WHERE `p`.`authorId` = ? AND `p`.`isDraft` = 0

		ORDER BY `c`.`createStamp` DESC

		LIMIT ?, ?

		";



        return $this->dbo->queryForList($query, array($userId, $first, $count));

    }



    public function findUserLastPost( $userId )

    {

        $ex = new OW_Example();

        $ex->andFieldEqual('authorId', $userId)->andFieldEqual('isDraft', 0)->setOrder('timestamp DESC')->setLimitClause(0, 1);



        return $this->findObjectByExample($ex);

    }



    public function findUserArchiveData( $id )

    {

        $query = "

			SELECT YEAR( FROM_UNIXTIME(`timestamp`) ) as `y`, MONTH( FROM_UNIXTIME(`timestamp`) ) as `m`

			FROM `{$this->getTableName()}`

			WHERE isDraft = 0 AND `authorId` = ?

			GROUP BY `y` ASC, `m` DESC

		";



        return $this->dbo->queryForList($query, array($id));

    }



    public function findUserPostListByPeriod( $id, $lb, $ub, $first, $count )

    {

        if ($first < 0)

        {

            $first = 0;

        }



        if ($count < 0)

        {

            $count = 1;

        }



        $ex = new OW_Example();

        $ex->andFieldEqual('authorId', $id);



        $ex->andFieldBetween('timestamp', $lb, $ub);

        $ex->andFieldEqual('isDraft', 0);

        $ex->setOrder('`timestamp` DESC');

        $ex->setLimitClause($first, $count);



        return $this->findListByExample($ex);

    }



    public function countUserPostByPeriod( $id, $lb, $ub )

    {

        $ex = new OW_Example();

        $ex->andFieldEqual('authorId', $id);

        $ex->andFieldBetween('timestamp', $lb, $ub);

        $ex->andFieldEqual('isDraft', 0);

        $ex->setOrder('`timestamp` DESC');



        return $this->countByExample($ex);

    }



    public function findList( $first, $count )

    {

        if ($first < 0)

        {

            $first = 0;

        }



        if ($count < 0)

        {

            $count = 1;

        }



        $ex = new OW_Example();

        $ex->andFieldEqual('isDraft', 0);

        $ex->andFieldEqual('privacy', 'everybody');

        $ex->setOrder('timestamp desc')->setLimitClause($first, $count);



        $cacheLifeTime = self::CACHE_LIFE_TIME;

        $tags = array( self::CACHE_TAG_POST_COUNT );



        return $this->findListByExample($ex, $cacheLifeTime, $tags);

    }



    public function findTopRatedList( $first, $count )

    {

        if ($first < 0)

        {

            $first = 0;

        }



        if ($count < 0)

        {

            $count = 1;

        }



        $query = "

			SELECT p.*, IF(SUM(r.score) IS NOT NULL, SUM(r.score), 0) as `t`

			FROM `{$this->getTableName()}` as p

			LEFT JOIN `ow_base_rate` as r /*todo: 8aa*/

			ON( r.`entityType` = 'blog-post' AND p.id = r.`entityId` )

			WHERE p.isDraft = 0

			GROUP BY p.`id`

			ORDER BY `t` DESC

			LIMIT ?, ?";



        return $this->dbo->queryForObjectList($query, $this->getDtoClassName(), array($first, $count));

    }



    public function findListByTag( $tag, $first, $count )

    {

        if ($first < 0)

        {

            $first = 0;

        }



        if ($count < 0)

        {

            $count = 1;

        }



        $query = "

			SELECT p.*

			FROM `ow_base_tag` as t

			INNER JOIN `ow_base_entity_tag` as `et`

				ON(`t`.`id` = `et`.`tagId` AND `et`.`entityType` = 'blog-post')

			INNER JOIN `{$this->getTableName()}` as p

				ON(`et`.`entityId` = `p`.`id`)

			WHERE p.isDraft = 0 AND `t`.`label` = '{$tag}'

			ORDER BY

			LIMIT ?, ?";



        return $this->dbo->queryForObjectList($query, $this->getDtoClassName(), array($first, $count));

    }



    public function countByTag( $tag )

    {

        $query = "

			SELECT count( * )

			FROM `ow_base_tag` as t

			INNER JOIN `ow_base_entity_tag` as `et`

				ON(`t`.`id` = `et`.`tagId` AND `et`.`entityType` = 'blog-post')

			INNER JOIN `{$this->getTableName()}` as p

				ON(`et`.`entityId` = `p`.`id`)

			WHERE p.isDraft = 0 AND `t`.`label` = '{$tag}'";



        return $this->dbo->queryForColumn($query);

    }



    public function findListByIdList( $list )

    {

        $ex = new OW_Example();



        $ex->andFieldInArray('id', $list);

        $ex->andFieldEqual('privacy', 'everybody');



        $ex->setOrder('timestamp DESC');



        return $this->findListByExample($ex);

    }



    public function updateBlogsPrivacy( $authorId, $privacy )

    {

        $this->clearCache();



        $sql = "UPDATE `" . $this->getTableName() . "` SET `privacy` = :privacy

            WHERE `authorId` = :authorId";



        $this->dbo->query($sql, array('privacy' => $privacy, 'authorId' => $authorId));

    }



    public function clearCache()

    {

        OW::getCacheManager()->clean( array( PostDao::CACHE_TAG_POST_COUNT ));

    }

}