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add phpDoc style comment

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git-svn-id: http://xe-core.googlecode.com/svn/branches/1.5.0@10774 201d5d3c-b55e-5fd7-737f-ddc643e51545
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ovclas 2012-06-14 02:33:44 +00:00
parent 744cc459ac
commit 3f0dd9cb06
11 changed files with 534 additions and 229 deletions
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79
classes/xml/xmlquery/DBParser.class.php
View file

@ -1,9 +1,34 @@
<?php
/**
* DBParser class
* @author NHN (developers@xpressengine.com)
* @package /classes/xml/xmlquery
* @version 0.1
**/
class DBParser {
/**
* Character for escape target value on the left
* @var string
*/
var $escape_char_left;
/**
* Character for escape target value on the right
* @var string
*/
var $escape_char_right;
/**
* Table prefix string
* @var string
*/
var $table_prefix;
/**
* constructor
* @param string $escape_char_left
* @param string $escape_char_right
* @param string $table_prefix
* @return void
*/
function DBParser($escape_char_left, $escape_char_right = "", $table_prefix = "xe_"){
$this->escape_char_left = $escape_char_left;
if ($escape_char_right !== "")$this->escape_char_right = $escape_char_right;
@ -11,33 +36,68 @@
$this->table_prefix = $table_prefix;
}
/**
* Get escape character
* @param string $leftOrRight left or right
* @return string
*/
function getEscapeChar($leftOrRight){
if ($leftOrRight === 'left')return $this->escape_char_left;
else return $this->escape_char_right;
}
/**
* escape the value
* @param mixed $name
* @return string
*/
function escape($name){
return $this->escape_char_left . $name . $this->escape_char_right;
}
/**
* escape the string value
* @param string $name
* @return string
*/
function escapeString($name){
return "'".$this->escapeStringValue($name)."'";
}
/**
* escape the string value
* @param string $value
* @return string
*/
function escapeStringValue($value){
if($value == "*") return $value;
if (is_string($value)) return $value = str_replace("'","''",$value);
return $value;
}
/**
* Return table full name
* @param string $name table name without table prefix
* @return string table full name with table prefix
*/
function parseTableName($name){
return $this->table_prefix . $name;
}
/**
* Return colmun name after escape
* @param string $name column name before escape
* @return string column name after escape
*/
function parseColumnName($name){
return $this->escapeColumn($name);
}
/**
* Escape column
* @param string $column_name
* @return string column name with db name
*/
function escapeColumn($column_name){
if($this->isUnqualifiedColumnName($column_name))
return $this->escape($column_name);
@ -49,11 +109,21 @@
}
}
/**
* Column name is suitable for use in checking
* @param string $column_name
* @return bool
*/
function isUnqualifiedColumnName($column_name){
if(strpos($column_name,'.')===false && strpos($column_name,'(')===false) return true;
return false;
}
/**
* Column name is suitable for use in checking
* @param string $column_name
* @return bool
*/
function isQualifiedColumnName($column_name){
if(strpos($column_name,'.')!==false && strpos($column_name,'(')===false) return true;
return false;
@ -92,12 +162,19 @@
/*
* Checks to see if expression is an aggregate star function
* like count(*)
* @param string $column_name
* @return bool
*/
function isStarFunction($column_name){
if(strpos($column_name, "(*)")!==false) return true;
return false;
}
/*
* Return column name after escape
* @param string $column_name
* @return string
*/
function escapeColumnExpression($column_name){
if($this->isStar($column_name)) return $column_name;
if($this->isStarFunction($column_name)){
@ -108,4 +185,4 @@
}
}