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First version of uncorellated select subquery.

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git-svn-id: http://xe-core.googlecode.com/svn/branches/1.5.0-DB@8539 201d5d3c-b55e-5fd7-737f-ddc643e51545
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ucorina 2011-06-27 17:44:56 +00:00
parent af9ced8c5c
commit 0a53ac3e9d
5 changed files with 315 additions and 18 deletions
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187
classes/db/DB.class.php
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@ -526,5 +526,192 @@
return new DBParser('"');
}
// TO BE REMOVED - Used for query compare
/**
* @brief returns type of column
* @param[in] $column_type_list list of column type
* @param[in] $name name of column type
* @return column type of $name
* @remarks columns are usually like a.b, so it needs another function
**/
function getColumnType($column_type_list, $name) {
if(strpos($name, '.') === false) return $column_type_list[$name];
list($prefix, $name) = explode('.', $name);
return $column_type_list[$name];
}
/**
* @brief returns the value of condition
* @param[in] $name name of condition
* @param[in] $value value of condition
* @param[in] $operation operation this is used in condition
* @param[in] $type type of condition
* @param[in] $column_type type of column
* @return well modified $value
* @remarks if $operation is like or like_prefix, $value itself will be modified
* @remarks if $type is not 'number', call addQuotes() and wrap with ' '
**/
function getConditionValue($name, $value, $operation, $type, $column_type) {
if(!in_array($operation,array('in','notin','between')) && $type == 'number') {
if(is_array($value)){
$value = join(',',$value);
}
if(strpos($value, ',') === false && strpos($value, '(') === false) return (int)$value;
return $value;
}
if(!is_array($value) && strpos($name, '.') !== false && strpos($value, '.') !== false) {
list($table_name, $column_name) = explode('.', $value);
if($column_type[$column_name]) return $value;
}
switch($operation) {
case 'like_prefix' :
if(!is_array($value)) $value = preg_replace('/(^\'|\'$){1}/', '', $value);
$value = $value.'%';
break;
case 'like_tail' :
if(!is_array($value)) $value = preg_replace('/(^\'|\'$){1}/', '', $value);
$value = '%'.$value;
break;
case 'like' :
if(!is_array($value)) $value = preg_replace('/(^\'|\'$){1}/', '', $value);
$value = '%'.$value.'%';
break;
case 'notin' :
if(is_array($value))
{
$value = $this->addQuotesArray($value);
if($type=='number') return join(',',$value);
else return "'". join("','",$value)."'";
}
else
{
return $value;
}
break;
case 'in' :
if(is_array($value))
{
$value = $this->addQuotesArray($value);
if($type=='number') return join(',',$value);
else return "'". join("','",$value)."'";
}
else
{
return $value;
}
break;
case 'between' :
if(!is_array($value)) $value = array($value);
$value = $this->addQuotesArray($value);
if($type!='number')
{
foreach($value as $k=>$v)
{
$value[$k] = "'".$v."'";
}
}
return $value;
break;
default:
if(!is_array($value)) $value = preg_replace('/(^\'|\'$){1}/', '', $value);
}
return "'".$this->addQuotes($value)."'";
}
/**
* @brief returns part of condition
* @param[in] $name name of condition
* @param[in] $value value of condition
* @param[in] $operation operation that is used in condition
* @return detail condition
**/
function getConditionPart($name, $value, $operation) {
switch($operation) {
case 'equal' :
case 'more' :
case 'excess' :
case 'less' :
case 'below' :
case 'like_tail' :
case 'like_prefix' :
case 'like' :
case 'in' :
case 'notin' :
case 'notequal' :
// if variable is not set or is not string or number, return
if(!isset($value)) return;
if($value === '') return;
if(!in_array(gettype($value), array('string', 'integer'))) return;
break;
case 'between' :
if(!is_array($value)) return;
if(count($value)!=2) return;
}
switch($operation) {
case 'equal' :
return $name.' = '.$value;
break;
case 'more' :
return $name.' >= '.$value;
break;
case 'excess' :
return $name.' > '.$value;
break;
case 'less' :
return $name.' <= '.$value;
break;
case 'below' :
return $name.' < '.$value;
break;
case 'like_tail' :
case 'like_prefix' :
case 'like' :
return $name.' like '.$value;
break;
case 'in' :
return $name.' in ('.$value.')';
break;
case 'notin' :
return $name.' not in ('.$value.')';
break;
case 'notequal' :
return $name.' <> '.$value;
break;
case 'notnull' :
return $name.' is not null';
break;
case 'null' :
return $name.' is null';
break;
case 'between' :
return $name.' between ' . $value[0] . ' and ' . $value[1];
break;
}
}
/**
* @brief returns condition key
* @param[in] $output result of query
* @return array of conditions of $output
**/
function getConditionList($output) {
$conditions = array();
if(count($output->conditions)) {
foreach($output->conditions as $key => $val) {
if($val['condition']) {
foreach($val['condition'] as $k => $v) {
$conditions[] = $v['column'];
}
}
}
}
return $conditions;
}
}
?>