adds comments for phpDoc

git-svn-id: http://xe-core.googlecode.com/svn/branches/1.5.0@10739 201d5d3c-b55e-5fd7-737f-ddc643e51545
This commit is contained in:
ovclas 2012-05-25 10:14:48 +00:00
parent 94be154d88
commit c65e9d3071
29 changed files with 1701 additions and 583 deletions

View file

@ -1,26 +1,40 @@
<?php
/**
* @class SelectExpression
* @author Arnia Software
* @brief Represents an expresion that appears in the select clause
* SelectExpression
* Represents an expresion that appears in the select clause
*
* @remarks
* $column_name can be:
* - a table column name
* - an sql function - like count(*)
* - an sql expression - substr(column_name, 1, 8) or score1 + score2
* $column_name is already escaped
*
* @author Arnia Software
* @package /classes/db/queryparts/expression
* @version 0.1
*/
class SelectExpression extends Expression {
/**
* column alias name
* @var string
*/
var $column_alias;
/**
* constructor
* @param string $column_name
* @param string $alias
* @return void
*/
function SelectExpression($column_name, $alias = NULL){
parent::Expression($column_name);
$this->column_alias = $alias;
}
/**
* Return column expression, ex) column as alias
* @return string
*/
function getExpression() {
return sprintf("%s%s", $this->column_name, $this->column_alias ? " as ".$this->column_alias : "");
}