Exemplo n.º 1
0
    /**
     * Returns an article comments list based on the given parameters.
     *
     * @param array $p_parameters
     *    An array of ComparisonOperation objects
     * @param string $p_order
     *    An array of columns and directions to order by
     * @param integer $p_start
     *    The record number to start the list
     * @param integer $p_limit
     *    The offset. How many records from $p_start will be retrieved.
     * @param integer $p_count
     *    The total count of the elements; this count is computed without
     *    applying the start ($p_start) and limit parameters ($p_limit)
     *
     * @return array $articleCommentsList
     *    An array of Comment objects
     */
    public static function GetList(array $p_parameters, $p_order = null,
                                   $p_start = 0, $p_limit = 0, &$p_count, $p_skipCache = false)
    {
        global $g_ado_db, $PHORUM;

        if (!$p_skipCache && CampCache::IsEnabled()) {
        	$paramsArray['parameters'] = serialize($p_parameters);
        	$paramsArray['order'] = (is_null($p_order)) ? 'null' : $p_order;
        	$paramsArray['start'] = $p_start;
        	$paramsArray['limit'] = $p_limit;
        	$cacheListObj = new CampCacheList($paramsArray, __METHOD__, self::DEFAULT_TTL);
        	$articleCommentsList = $cacheListObj->fetchFromCache();
        	if ($articleCommentsList !== false && is_array($articleCommentsList)) {
        		return $articleCommentsList;
        	}
        }

        $selectClauseObj = new SQLSelectClause();
        $countClauseObj = new SQLSelectClause();

        $messageTable = $PHORUM['message_table'];
        $selectClauseObj->setTable($messageTable);
        $countClauseObj->setTable($messageTable);

        $articleNumber = null;
        $languageId = null;
        // sets the where conditions
        foreach ($p_parameters as $param) {
            $comparisonOperation = self::ProcessListParameters($param);

            if (strtolower($comparisonOperation->getLeftOperand()) == 'fk_article_number') {
                $articleNumber = $comparisonOperation->getRightOperand();
            }
            if (strtolower($comparisonOperation->getLeftOperand()) == 'fk_language_id') {
                $languageId = $comparisonOperation->getRightOperand();
            }
            $parameters[] = $comparisonOperation;
        }

        if (!is_null($articleNumber) && !is_null($languageId)) {
        	// gets the thread id for the article
        	$threadId = ArticleComment::GetCommentThreadId($articleNumber, $languageId);
            $selectClauseObj->addWhere('thread = '.$threadId);
            $countClauseObj->addWhere('thread = '.$threadId);
        }

        $selectClauseObj->addWhere('message_id != thread');
        $selectClauseObj->addWhere('status = '.PHORUM_STATUS_APPROVED);
        $countClauseObj->addWhere('message_id != thread');
        $countClauseObj->addWhere('status = '.PHORUM_STATUS_APPROVED);

        if (!is_array($p_order) || count($p_order) == 0) {
            $p_order = array('default'=>'asc');
        }

        // sets the order condition if any
        if (is_array($p_order)) {
            $order = ArticleComment::ProcessListOrder($p_order);
            // sets the order condition if any
            foreach ($order as $orderDesc) {
                $orderField = $orderDesc['field'];
                $orderDirection = $orderDesc['dir'];
                $selectClauseObj->addOrderBy($orderField . ' ' . $orderDirection);
            }
        }

        // sets the limit
        $selectClauseObj->setLimit($p_start, $p_limit);

        // builds the query and executes it
        $selectQuery = $selectClauseObj->buildQuery();
        $comments = $g_ado_db->GetAll($selectQuery);
        if (is_array($comments)) {
        	$countClauseObj->addColumn('COUNT(*)');
        	$countQuery = $countClauseObj->buildQuery();
        	$p_count = $g_ado_db->GetOne($countQuery);

        	// builds the array of comment objects
        	$articleCommentsList = array();
        	foreach ($comments as $comment) {
        		$pmObj = new Phorum_message($comment['message_id']);
        		if ($pmObj->exists()) {
        			$articleCommentsList[] = $pmObj;
        		}
        	}
        } else {
        	$articleCommentsList = array();
        	$p_count = 0;
        }
        if (!$p_skipCache && CampCache::IsEnabled()) {
        	$cacheListObj->storeInCache($articleCommentsList);
        }

        return $articleCommentsList;
    } // fn GetList