gyro/core/model/base/dbtablesubquery.csl.php

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00001 <?php
00002 /**
00003  * Masks a sub query as a table, that can be used in Joins
00004  * 
00005  * @author Gerd Riesselmann
00006  * @ingroup Model
00007  */
00008 class DBTableSubquery extends DBTable {
00009         /**
00010          * The query to mask as table
00011          */
00012         protected $query; 
00013         
00014         /**
00015          * Constructor
00016          *
00017          * @param IDBTable $table The table to overload alias for
00018          * @param string $alias
00019          */
00020         public function __construct($query, $alias, $table = null) {
00021                 $this->query = $query;
00022                 
00023                 $fields = array();
00024                 if ($table instanceof IDBTable) {
00025                         $fields = $table->get_table_fields();
00026                 }
00027                 parent::__construct($alias, $fields);
00028         }
00029         
00030         /**
00031          * Returns name of table, but escaped
00032          * 
00033          * @return string
00034          */
00035         public function get_table_name_escaped() {
00036                 return '(' . $this->query . ')';
00037         }
00038 }