Proyectos de Subversion LeadersLinked - Antes de SPA

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<?php
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declare(strict_types=1);
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namespace LeadersLinked\Mapper;
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use LeadersLinked\Model\Like;
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use LeadersLinked\Mapper\Common\MapperCommon;
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use Laminas\Db\Adapter\AdapterInterface;
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use Laminas\Log\LoggerInterface;
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use Laminas\Db\Sql\Expression;
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use LeadersLinked\Hydrator\ObjectPropertyHydrator;
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class LikeMapper extends MapperCommon
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{
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    const _TABLE = 'tbl_likes';
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    /**
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     *
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     * @var LikeMapper
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     */
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    private static $_instance;
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    /**
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     *
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     * @param AdapterInterface $adapter
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     */
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    private function __construct($adapter)
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    {
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        parent::__construct($adapter);
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    }
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    /**
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     *
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     * @param AdapterInterface $adapter
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     * @return \LeadersLinked\Mapper\LikeMapper
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     */
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    public static function getInstance($adapter)
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    {
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        if(self::$_instance == null) {
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            self::$_instance = new LikeMapper($adapter);
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        }
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        return self::$_instance;
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    }
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    /**
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     *
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     * @param int $feed_id
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     * @return int
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     */
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    public function fetchCountLikeByFeedId($feed_id)
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    {
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        $select = $this->sql->select(self::_TABLE);
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        $select->columns(['total' => new Expression('COUNT(*)') ]);
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        $select->where->equalTo('feed_id', $feed_id);
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        $record = $this->executeFetchOneArray($select);
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        return $record['total'];
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    }
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    /**
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     *
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     * @param int $feed_id
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     * @param int $user_id
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     * @return Like
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     */
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    public function fetchOneByFeedIdAndUserId($feed_id, $user_id)
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    {
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        $select = $this->sql->select(self::_TABLE);
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        $select->where->equalTo('feed_id', $feed_id)->and->equalTo('user_id', $user_id);
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        $prototype = new Like();
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        return $this->executeFetchOneObject($select, $prototype);
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    }
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    /**
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     *
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     * @param int $feed_id
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     * @param int $user_id
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     * @return boolean
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     */
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    public function deleteByFeedIdAndUserId($feed_id, $user_id)
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    {
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        $delete = $this->sql->delete(self::_TABLE);
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        $delete->where->equalTo('feed_id', $feed_id)->and->equalTo('user_id', $user_id);
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        return $this->executeDelete($delete);
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    }
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    /**
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     *
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     * @param Like $like
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     * @return boolean
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     */
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    public function insert($like)
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    {
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        $hydrator = new ObjectPropertyHydrator();
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        $values = $hydrator->extract($like);
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        $insert = $this->sql->insert(self::_TABLE);
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        $insert->values($values);
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        $response = $this->executeInsert($insert);
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        if($response) {
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            $like->id = $this->getLastInsertId();
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        }
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        return $response;
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    }
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}