diff options
Diffstat (limited to 'src/SemanticScuttle/Service/Vote.php')
| -rw-r--r-- | src/SemanticScuttle/Service/Vote.php | 137 |
1 files changed, 121 insertions, 16 deletions
diff --git a/src/SemanticScuttle/Service/Vote.php b/src/SemanticScuttle/Service/Vote.php index 3c4a144..4a5baab 100644 --- a/src/SemanticScuttle/Service/Vote.php +++ b/src/SemanticScuttle/Service/Vote.php @@ -1,4 +1,15 @@ <?php +/** + * SemanticScuttle - your social bookmark manager. + * + * PHP version 5. + * + * @category Bookmarking + * @package SemanticScuttle + * @author Christian Weiske <cweiske@cweiske.de> + * @license GPL http://www.gnu.org/licenses/gpl.html + * @link http://sourceforge.net/projects/semanticscuttle + */ /** * SemanticScuttle voting system. @@ -15,16 +26,14 @@ * sure lookups are really fast, since every bookmarks * in a list shows its voting. * + * @category Bookmarking + * @package SemanticScuttle * @author Christian Weiske <cweiske@cweiske.de> + * @license GPL http://www.gnu.org/licenses/gpl.html + * @link http://sourceforge.net/projects/semanticscuttle */ -class SemanticScuttle_Service_Vote extends SemanticScuttle_Service +class SemanticScuttle_Service_Vote extends SemanticScuttle_DbService { - /** - * Database object - * - * @var sql_db - */ - protected $db; @@ -62,14 +71,39 @@ class SemanticScuttle_Service_Vote extends SemanticScuttle_Service /** * Returns the sum of votes for the given bookmark. * + * @internal + * Uses the "votes" table to retrieve the votes, which + * has high costs. It is more efficient to get the sum of + * all votes for a bookmark from the bookmarks table, + * field bVoting. + * * @param integer $bookmark Bookmark ID * * @return integer Vote (can be positive, 0 or negative) */ public function getVoting($bookmark) { - //FIXME - } + $query = 'SELECT SUM(vote) as sum FROM ' . $this->getTableName() + . ' WHERE bid = "' . $this->db->sql_escape($bookmark) . '"'; + + if (!($dbres = $this->db->sql_query_limit($query, 1, 0))) { + message_die( + GENERAL_ERROR, 'Could not get voting', + '', __LINE__, __FILE__, $query, $this->db + ); + //FIXME: throw exception + return false; + } + + $row = $this->db->sql_fetchrow($dbres); + $this->db->sql_freeresult($dbres); + + if (!$row) { + return false; + } + + return (int)$row['sum']; + }//public function getVoting(..) @@ -83,7 +117,26 @@ class SemanticScuttle_Service_Vote extends SemanticScuttle_Service */ public function getVotes($bookmark) { - //FIXME + $query = 'SELECT COUNT(vote) as count FROM ' . $this->getTableName() + . ' WHERE bid = "' . $this->db->sql_escape($bookmark) . '"'; + + if (!($dbres = $this->db->sql_query_limit($query, 1, 0))) { + message_die( + GENERAL_ERROR, 'Could not get vote count', + '', __LINE__, __FILE__, $query, $this->db + ); + //FIXME: throw exception + return false; + } + + $row = $this->db->sql_fetchrow($dbres); + $this->db->sql_freeresult($dbres); + + if (!$row) { + return false; + } + + return (int)$row['count']; } @@ -99,7 +152,28 @@ class SemanticScuttle_Service_Vote extends SemanticScuttle_Service */ public function hasVoted($bookmark, $user) { - //FIXME + $query = 'SELECT COUNT(vote) as count FROM ' . $this->getTableName() + . ' WHERE' + . ' bid = "' . $this->db->sql_escape($bookmark) . '"' + . ' AND uid = "' . $this->db->sql_escape($user) . '"'; + + if (!($dbres = $this->db->sql_query_limit($query, 1, 0))) { + message_die( + GENERAL_ERROR, 'Could not get vote count', + '', __LINE__, __FILE__, $query, $this->db + ); + //FIXME: throw exception + return false; + } + + $row = $this->db->sql_fetchrow($dbres); + $this->db->sql_freeresult($dbres); + + if (!$row) { + return false; + } + + return (int)$row['count'] == 1; } @@ -111,11 +185,32 @@ class SemanticScuttle_Service_Vote extends SemanticScuttle_Service * @param integer $bookmark Bookmark ID * @param integer $user User ID * - * @return integer Either 1 or -1. + * @return integer Either 1 or -1, null when not voted. */ public function getVote($bookmark, $user) { - //FIXME + $query = 'SELECT vote FROM ' . $this->getTableName() + . ' WHERE' + . ' bid = "' . $this->db->sql_escape($bookmark) . '"' + . ' AND uid = "' . $this->db->sql_escape($user) . '"'; + + if (!($dbres = $this->db->sql_query_limit($query, 1, 0))) { + message_die( + GENERAL_ERROR, 'Could not get vote count', + '', __LINE__, __FILE__, $query, $this->db + ); + //FIXME: throw exception + return false; + } + + $row = $this->db->sql_fetchrow($dbres); + $this->db->sql_freeresult($dbres); + + if (!$row) { + return null; + } + + return $row['vote']; } @@ -149,7 +244,7 @@ class SemanticScuttle_Service_Vote extends SemanticScuttle_Service return false; } - $dbresult = $this->db->sql_query( + $res = $this->db->sql_query( 'INSERT INTO ' . $this->getTableName() . ' SET' . ' bid = ' . (int)$bookmark @@ -157,8 +252,17 @@ class SemanticScuttle_Service_Vote extends SemanticScuttle_Service . ',vote = ' . (int)$vote ); //FIXME: check for sql error - $this->db->sql_freeresult(); - //FIXME: update bookmarks table + $this->db->sql_freeresult($res); + + //update bookmark table + $bm = SemanticScuttle_Service_Factory::get('Bookmark'); + $res = $this->db->sql_query( + 'UPDATE ' . $bm->getTableName() + . ' SET bVoting = bVoting + ' . (int)$vote + ); + $this->db->sql_freeresult($res); + + return true; } @@ -172,6 +276,7 @@ class SemanticScuttle_Service_Vote extends SemanticScuttle_Service */ public function rewriteVotings() { + throw new Exception('Not implemented yet'); //FIXME //SELECT bid, SUM( vote ) FROM sc_votes GROUP BY bid } |