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Removed legacy methods from DB and DBCubrid classes.

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Added Query object to hold together query parts. 
Updated structure of query cache file to return Query object. 
Added support for array query arguments - used in the IN clause.

git-svn-id: http://xe-core.googlecode.com/svn/branches/1.5.0-DB@8438 201d5d3c-b55e-5fd7-737f-ddc643e51545
This commit is contained in:
ucorina 2011-06-02 13:06:08 +00:00
parent c384f6c753
commit 0cd318fcf5
9 changed files with 210 additions and 891 deletions
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158
classes/db/queryparts/Query.class.php
View file

@ -1,72 +1,172 @@
<?php
class Query extends Object {
var $queryID;
var $action;
var $columns;
var $tables;
var $conditions;
var $groups;
var $orderby;
function select($columns= null){
$this->action = 'select';
function setQueryId($queryID){
$this->queryID = $queryID;
}
function setAction($action){
$this->action = $action;
}
function setColumns($columns){
if(!isset($columns) || count($columns) === 0){
$this->columns = array(new StarExpression());
return $this;
return;
}
if(!is_array($columns)) $columns = array($columns);
$this->columns = $columns;
return $this;
$this->columns = $columns;
}
function from($tables){
function setTables($tables){
if(!isset($tables) || count($tables) === 0){
$this->setError(true);
$this->setMessage("You must provide at least one table for the query.");
return $this;
return;
}
if(!is_array($tables)) $tables = array($tables);
$this->tables = $tables;
$this->tables = $tables;
}
function setConditions($conditions){
if(!isset($conditions) || count($conditions) === 0) return;
if(!is_array($conditions)) $conditions = array($conditions);
$this->conditions = $conditions;
}
function setGroups($groups){
if(!isset($groups) || count($groups) === 0) return;
if(!is_array($groups)) $groups = array($groups);
$this->groups = $groups;
}
function setOrder($order){
if(!isset($order) || count($order) === 0) return;
if(!is_array($order)) $order = array($order);
$this->orderby = $order;
}
function setLimit($limit){
if(!isset($limit)) return;
$this->limit = $limit;
}
// START Fluent interface
function select($columns= null){
$this->action = 'select';
$this->setColumns($columns);
return $this;
}
function from($tables){
$this->setTables($tables);
return $this;
}
function where($conditions){
if(!isset($conditions) || count($conditions) === 0) return $this;
if(!is_array($conditions)) $conditions = array($conditions);
$this->conditions = $conditions;
return $this;
$this->setConditions($conditions);
return $this;
}
function groupBy($groups){
if(!isset($groups) || count($groups) === 0) return $this;
if(!is_array($groups)) $groups = array($groups);
$this->groups = $groups;
$this->setGroups($groups);
return $this;
}
function orderBy($order){
if(!isset($order) || count($order) === 0) return $this;
if(!is_array($order)) $order = array($order);
$this->orderby = $order;
return $this;
$this->setOrder($order);
return $this;
}
function limit($limit){
if(!isset($limit)) return $this;
$this->limit = $limit;
return $this;
$this->setLimit($limit);
return $this;
}
function getSql(){
if($this->action == 'select') return $this->getSelectSql();
// END Fluent interface
function getAction(){
return $this->action;
}
function getSelect(){
$select = '';
foreach($this->columns as $column){
if($column->show())
$select .= $column->getExpression() . ', ';
}
if(trim($select) == '') return '';
$select = substr($select, 0, -2);
return $select;
}
function getFrom(){
$from = '';
$simple_table_count = 0;
foreach($this->tables as $table){
if($table->isJoinTable() || !$simple_table_count) $from .= $table->toString() . ' ';
else $from .= ', '.$table->toString() . ' ';
$simple_table_count++;
}
if(trim($from) == '') return '';
return $from;
}
function getWhere(){
$where = '';
if(count($this->conditions) > 0){
foreach($this->conditions as $conditionGroup){
$where .= $conditionGroup->toString();
}
if(trim($where) == '') return '';
}
return $where;
}
function getGroupBy(){
$groupBy = '';
if($this->groups) if($this->groups[0] !== "")
$groupBy = implode(', ', $this->groups);
return $groupBy;
}
function getOrderBy(){
if(count($this->orderby) === 0) return '';
$orderBy = '';
foreach($this->orderby as $order){
$orderBy .= $order->toString() .', ';
}
$orderBy = substr($orderBy, 0, -2);
return $orderBy;
}
function getLimit(){
$limit = '';
if(count($this->limit) > 0){
$limit = '';
$limit .= $this->limit->toString();
}
return $limit;
}
}