contributions/voting/model/classes/votes.facade.php

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00001 <?php
00002 Load::models('votesaggregates');
00003 
00004 /**
00005  * Facade class for votes
00006  */
00007 class Votes {
00008         /**
00009          * Create adapter to find votes for instance
00010          *
00011          * @return DAOVotes
00012          */
00013         public static function create_instance_adapter(IDataObject $inst) {
00014                 $dao = new DAOVotes();
00015                 $dao->instance = $inst;
00016                 return $dao;  
00017         }
00018         
00019         /**
00020          * Find all votes for instance
00021          *
00022          * @param IDataObject $inst
00023          * @return array
00024          */
00025         public static function find_for_instance(IDataObject $inst) {
00026                 $dao = self::create_instance_adapter($inst);
00027                 return $dao->find_all();
00028         }
00029                 
00030         /**
00031          * Calucate average for instance
00032          * 
00033          * @param IDataObject $inst
00034          * @return int
00035          */
00036         public static function get_average_for_instance(IDataObject $inst, $precision = 0) {
00037                 $aggr = VotesAggregates::get_for_instance($inst);
00038                 if ($aggr) {
00039                         return $aggr->get_average($precision);
00040                 }
00041                 return 0;
00042         }
00043         
00044         /**
00045          * Create a vote instance
00046          *
00047          * @param array $params
00048          * @param IDataObject $instance
00049          * @param DAOVotes $created
00050          * @return Status
00051          */
00052         public static function create($params, $instance, &$created) {
00053                 $params['instance'] = $instance;
00054                 $cmd = CommandsFactory::create_command('votes', 'create', $params);
00055                 $ret = $cmd->execute();
00056                 $created = $cmd->get_result();
00057                 return $ret;
00058         }
00059 }