1222 lines
39 KiB
PHP
1222 lines
39 KiB
PHP
<?php
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require_once("Access.php");
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/**
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* Doctrine_Query
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*
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* @package Doctrine ORM
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* @url www.phpdoctrine.com
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* @license LGPL
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* @version 1.0 alpha
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*/
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class Doctrine_Query extends Doctrine_Access {
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/**
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* @var array $fetchmodes an array containing all fetchmodes
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*/
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private $fetchModes = array();
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/**
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* @var array $tables an array containing all the tables used in the query
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*/
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private $tables = array();
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/**
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* @var array $collections an array containing all collections this parser has created/will create
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*/
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private $collections = array();
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/**
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* @var array $joins an array containing all table joins
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*/
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private $joins = array();
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/**
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* @var array $data fetched data
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*/
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private $data = array();
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/**
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* @var Doctrine_Session $session Doctrine_Session object
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*/
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private $session;
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/**
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* @var Doctrine_View $view Doctrine_View object
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*/
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private $view;
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private $inheritanceApplied = false;
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private $aggregate = false;
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/**
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* @var array $tableAliases
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*/
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private $tableAliases = array();
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/**
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* @var array $tableIndexes
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*/
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private $tableIndexes = array();
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/**
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* @var array $paths
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*/
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private $paths = array();
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/**
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* @var array $parts SQL query string parts
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*/
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protected $parts = array(
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"columns" => array(),
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"from" => array(),
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"join" => array(),
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"where" => array(),
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"groupby" => array(),
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"having" => array(),
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"orderby" => array(),
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"limit" => false,
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"offset" => false,
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);
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/**
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* constructor
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*
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* @param Doctrine_Session $session
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*/
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public function __construct(Doctrine_Session $session) {
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$this->session = $session;
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}
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/**
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* @return Doctrine_Session
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*/
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public function getSession() {
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return $this->session;
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}
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/**
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* setView
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* sets a database view this query object uses
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* this method should only be called internally by doctrine
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*
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* @param Doctrine_View $view database view
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* @return void
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*/
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public function setView(Doctrine_View $view) {
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$this->view = $view;
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}
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/**
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* getView
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*
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* @return Doctrine_View
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*/
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public function getView() {
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return $this->view;
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}
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/**
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* clear
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* resets all the variables
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*
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* @return void
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*/
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private function clear() {
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$this->fetchModes = array();
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$this->tables = array();
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$this->parts = array(
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"columns" => array(),
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"from" => array(),
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"join" => array(),
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"where" => array(),
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"groupby" => array(),
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"having" => array(),
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"orderby" => array(),
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"limit" => false,
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"offset" => false,
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);
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$this->inheritanceApplied = false;
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$this->aggregate = false;
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$this->data = array();
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$this->collections = array();
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$this->joined = array();
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$this->joins = array();
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}
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/**
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* loadFields
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* loads fields for a given table and
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* constructs a little bit of sql for every field
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*
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* fields of the tables become: [tablename].[fieldname] as [tablename]__[fieldname]
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*
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* @access private
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* @param object Doctrine_Table $table a Doctrine_Table object
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* @param integer $fetchmode fetchmode the table is using eg. Doctrine::FETCH_LAZY
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* @param array $names fields to be loaded (only used in lazy property loading)
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* @return void
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*/
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private function loadFields(Doctrine_Table $table, $fetchmode, array $names, $cpath) {
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$name = $table->getComponentName();
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switch($fetchmode):
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case Doctrine::FETCH_OFFSET:
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$this->limit = $table->getAttribute(Doctrine::ATTR_COLL_LIMIT);
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case Doctrine::FETCH_IMMEDIATE:
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if( ! empty($names))
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$names = array_unique(array_merge($table->getPrimaryKeys(), $names));
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else
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$names = $table->getColumnNames();
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break;
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case Doctrine::FETCH_LAZY_OFFSET:
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$this->limit = $table->getAttribute(Doctrine::ATTR_COLL_LIMIT);
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case Doctrine::FETCH_LAZY:
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case Doctrine::FETCH_BATCH:
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$names = array_unique(array_merge($table->getPrimaryKeys(), $names));
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break;
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default:
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throw new Doctrine_Exception("Unknown fetchmode.");
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endswitch;
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$component = $table->getComponentName();
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$tablename = $this->tableAliases[$cpath];
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$this->fetchModes[$tablename] = $fetchmode;
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$count = count($this->tables);
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foreach($names as $name) {
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if($count == 0) {
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$this->parts["columns"][] = $tablename.".".$name;
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} else {
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$this->parts["columns"][] = $tablename.".".$name." AS ".$tablename."__".$name;
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}
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}
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}
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/**
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* sets a query part
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*
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* @param string $name
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* @param array $args
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* @return void
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*/
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public function __call($name, $args) {
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$name = strtolower($name);
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if(isset($this->parts[$name])) {
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$method = "parse".ucwords($name);
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switch($name):
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case "where":
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case "having":
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$this->parts[$name] = array($this->$method($args[0]));
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break;
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case "limit":
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case "offset":
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if($args[0] == null)
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$args[0] = false;
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$this->parts[$name] = $args[0];
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break;
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case "from":
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$this->parts['columns'] = array();
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$this->parts['join'] = array();
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$this->joins = array();
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$this->tables = array();
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$this->fetchModes = array();
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$this->tableIndexes = array();
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$this->tableAliases = array();
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default:
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$this->parts[$name] = array();
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$this->$method($args[0]);
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endswitch;
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} else
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throw new Doctrine_Query_Exception("Unknown overload method");
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return $this;
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}
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/**
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* returns a query part
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*
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* @param $name query part name
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* @return mixed
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*/
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public function get($name) {
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if( ! isset($this->parts[$name]))
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return false;
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return $this->parts[$name];
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}
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/**
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* sets a query part
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*
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* @param $name query part name
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* @param $value query part value
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* @return boolean
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*/
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public function set($name, $value) {
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if(isset($this->parts[$name])) {
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$method = "parse".ucwords($name);
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switch($name):
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case "where":
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case "having":
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$this->parts[$name] = array($this->$method($value));
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break;
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case "limit":
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case "offset":
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if($value == null)
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$value = false;
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$this->parts[$name] = $value;
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break;
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case "from":
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$this->parts['columns'] = array();
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$this->parts['join'] = array();
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$this->joins = array();
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$this->tables = array();
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$this->fetchModes = array();
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$this->tableIndexes = array();
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$this->tableAliases = array();
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default:
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$this->parts[$name] = array();
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$this->$method($value);
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endswitch;
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return true;
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}
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return false;
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}
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/**
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* returns the built sql query
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*
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* @return string
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*/
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final public function getQuery() {
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if(empty($this->parts["columns"]) || empty($this->parts["from"]))
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return false;
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// build the basic query
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$q = "SELECT ".implode(", ",$this->parts["columns"]).
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" FROM ";
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foreach($this->parts["from"] as $tname => $bool) {
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$a[] = $tname;
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}
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$q .= implode(", ",$a);
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if( ! empty($this->parts['join'])) {
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foreach($this->parts['join'] as $part) {
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$q .= " ".implode(' ', $part);
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}
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}
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$string = $this->applyInheritance();
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if( ! empty($this->parts["where"])) {
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$q .= " WHERE ".implode(" ",$this->parts["where"]);
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if( ! empty($string))
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$q .= " AND (".$string.")";
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} else {
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if( ! empty($string))
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$q .= " WHERE (".$string.")";
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}
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if( ! empty($this->parts["groupby"]))
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$q .= " GROUP BY ".implode(", ",$this->parts["groupby"]);
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if( ! empty($this->parts["having"]))
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$q .= " HAVING ".implode(" ",$this->parts["having"]);
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if( ! empty($this->parts["orderby"]))
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$q .= " ORDER BY ".implode(", ",$this->parts["orderby"]);
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if( ! empty($this->parts["limit"]) || ! empty($this->offset))
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$q = $this->session->modifyLimitQuery($q,$this->parts["limit"],$this->offset);
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return $q;
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}
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/**
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* applyInheritance
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* applies column aggregation inheritance to DQL query
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*
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* @return string
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*/
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final public function applyInheritance() {
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// get the inheritance maps
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$array = array();
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foreach($this->tables as $alias => $table):
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$array[$alias][] = $table->getInheritanceMap();
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endforeach;
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// apply inheritance maps
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$str = "";
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$c = array();
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$index = 0;
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foreach($array as $tname => $maps) {
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$a = array();
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foreach($maps as $map) {
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$b = array();
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foreach($map as $field => $value) {
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if($index > 0)
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$b[] = "(".$tname.".$field = $value OR $tname.$field IS NULL)";
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else
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$b[] = $tname.".$field = $value";
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}
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if( ! empty($b)) $a[] = implode(" AND ",$b);
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}
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if( ! empty($a)) $c[] = implode(" AND ",$a);
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$index++;
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}
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$str .= implode(" AND ",$c);
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return $str;
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}
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/**
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* @param string $where
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* @return boolean
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*/
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final public function addWhere($where) {
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if(empty($where))
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return false;
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if($this->parts["where"]) {
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$this->parts["where"][] = "AND (".$where.")";
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} else {
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$this->parts["where"][] = "(".$where.")";
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}
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return true;
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}
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/**
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* @param string $having
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* @return boolean
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*/
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final public function addHaving($having) {
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if(empty($having))
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return false;
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if($this->parts["having"]) {
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$this->parts["having"][] = "AND (".$having.")";
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} else {
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$this->parts["having"][] = "(".$having.")";
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}
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return true;
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}
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/**
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* getData
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* @param $key the component name
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* @return array the data row for the specified component
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*/
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final public function getData($key) {
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if(isset($this->data[$key]) && is_array($this->data[$key]))
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return $this->data[$key];
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return array();
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}
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/**
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* execute
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* executes the dql query and populates all collections
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*
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* @param string $params
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* @return Doctrine_Collection the root collection
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*/
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public function execute($params = array()) {
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$this->data = array();
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$this->collections = array();
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if( ! $this->view)
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$query = $this->getQuery();
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else
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$query = $this->view->getSelectSql();
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switch(count($this->tables)):
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case 0:
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throw new DQLException();
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break;
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case 1:
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$keys = array_keys($this->tables);
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$name = $this->tables[$keys[0]]->getComponentName();
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$stmt = $this->session->execute($query,$params);
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while($data = $stmt->fetch(PDO::FETCH_ASSOC)):
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foreach($data as $key => $value):
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$e = explode("__",$key);
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if(count($e) > 1) {
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$data[$e[1]] = $value;
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} else {
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$data[$e[0]] = $value;
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}
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unset($data[$key]);
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endforeach;
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$this->data[$name][] = $data;
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endwhile;
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return $this->getCollection($keys[0]);
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break;
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default:
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$query = $this->getQuery();
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$keys = array_keys($this->tables);
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$root = $keys[0];
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$stmt = $this->session->execute($query,$params);
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$previd = array();
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$coll = $this->getCollection($root);
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$prev[$root] = $coll;
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$array = $this->parseData($stmt);
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$colls = array();
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foreach($array as $data) {
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/**
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* remove duplicated data rows and map data into objects
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*/
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foreach($data as $key => $row) {
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if(empty($row))
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continue;
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$ids = $this->tables[$key]->getIdentifier();
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$emptyID = false;
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if(is_array($ids)) {
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foreach($ids as $id) {
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if($row[$id] == null) {
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$emptyID = true;
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break;
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}
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}
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} else {
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if($row[$ids] === null)
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$emptyID = true;
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}
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$name = $key;
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if($emptyID) {
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$pointer = $this->joins[$name];
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$path = array_search($name, $this->tableAliases);
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$tmp = explode(".", $path);
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$alias = end($tmp);
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unset($tmp);
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$fk = $this->tables[$pointer]->getForeignKey($alias);
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if( ! isset($prev[$pointer]) )
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continue;
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$last = $prev[$pointer]->getLast();
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switch($fk->getType()):
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case Doctrine_Relation::ONE_COMPOSITE:
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case Doctrine_Relation::ONE_AGGREGATE:
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break;
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default:
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if($last instanceof Doctrine_Record) {
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if( ! $last->hasReference($alias)) {
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$prev[$name] = $this->getCollection($name);
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$last->initReference($prev[$name],$fk);
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}
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}
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endswitch;
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continue;
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}
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|
|
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if( ! isset($previd[$name]))
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$previd[$name] = array();
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if($previd[$name] !== $row) {
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// set internal data
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$this->tables[$name]->setData($row);
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// initialize a new record
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$record = $this->tables[$name]->getRecord();
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if($name == $root) {
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// add record into root collection
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$coll->add($record);
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unset($previd);
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} else {
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|
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$pointer = $this->joins[$name];
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$path = array_search($name, $this->tableAliases);
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$tmp = explode(".", $path);
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$alias = end($tmp);
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unset($tmp);
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$fk = $this->tables[$pointer]->getForeignKey($alias);
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$last = $prev[$pointer]->getLast();
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|
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switch($fk->getType()):
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case Doctrine_Relation::ONE_COMPOSITE:
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case Doctrine_Relation::ONE_AGGREGATE:
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|
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// one-to-one relation
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$last->internalSet($fk->getLocal(), $record->getID());
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$last->initSingleReference($record, $fk);
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$prev[$name] = $record;
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break;
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default:
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|
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// one-to-many relation or many-to-many relation
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if( ! $last->hasReference($alias)) {
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$prev[$name] = $this->getCollection($name);
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$last->initReference($prev[$name], $fk);
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} else {
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// previous entry found from identityMap
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$prev[$name] = $last->get($alias);
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}
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$last->addReference($record, $fk);
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endswitch;
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}
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}
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$previd[$name] = $row;
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}
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}
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return $coll;
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endswitch;
|
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}
|
|
/**
|
|
* parseData
|
|
* parses the data returned by PDOStatement
|
|
*
|
|
* @return array
|
|
*/
|
|
public function parseData(PDOStatement $stmt) {
|
|
$array = array();
|
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|
|
while($data = $stmt->fetch(PDO::FETCH_ASSOC)):
|
|
/**
|
|
* parse the data into two-dimensional array
|
|
*/
|
|
foreach($data as $key => $value):
|
|
$e = explode("__",$key);
|
|
|
|
if(count($e) > 1) {
|
|
$data[$e[0]][$e[1]] = $value;
|
|
} else {
|
|
$data[0][$e[0]] = $value;
|
|
}
|
|
unset($data[$key]);
|
|
endforeach;
|
|
$array[] = $data;
|
|
endwhile;
|
|
$stmt->closeCursor();
|
|
return $array;
|
|
}
|
|
/**
|
|
* returns a Doctrine_Table for given name
|
|
*
|
|
* @param string $name component name
|
|
* @return Doctrine_Table
|
|
*/
|
|
public function getTable($name) {
|
|
return $this->tables[$name];
|
|
}
|
|
/**
|
|
* getCollection
|
|
*
|
|
* @parma string $name component name
|
|
* @param integer $index
|
|
*/
|
|
private function getCollection($name) {
|
|
$table = $this->tables[$name];
|
|
switch($this->fetchModes[$name]):
|
|
case Doctrine::FETCH_BATCH:
|
|
$coll = new Doctrine_Collection_Batch($table);
|
|
break;
|
|
case Doctrine::FETCH_LAZY:
|
|
$coll = new Doctrine_Collection_Lazy($table);
|
|
break;
|
|
case Doctrine::FETCH_OFFSET:
|
|
$coll = new Doctrine_Collection_Offset($table);
|
|
break;
|
|
case Doctrine::FETCH_IMMEDIATE:
|
|
$coll = new Doctrine_Collection_Immediate($table);
|
|
break;
|
|
case Doctrine::FETCH_LAZY_OFFSET:
|
|
$coll = new Doctrine_Collection_LazyOffset($table);
|
|
break;
|
|
default:
|
|
throw new Doctrine_Exception("Unknown fetchmode");
|
|
endswitch;
|
|
|
|
$coll->populate($this);
|
|
return $coll;
|
|
}
|
|
/**
|
|
* query the database with DQL (Doctrine Query Language)
|
|
*
|
|
* @param string $query DQL query
|
|
* @param array $params parameters
|
|
*/
|
|
public function query($query,$params = array()) {
|
|
$this->parseQuery($query);
|
|
|
|
if($this->aggregate) {
|
|
$keys = array_keys($this->tables);
|
|
$query = $this->getQuery();
|
|
$stmt = $this->tables[$keys[0]]->getSession()->select($query,$this->parts["limit"],$this->offset);
|
|
$data = $stmt->fetch(PDO::FETCH_ASSOC);
|
|
if(count($data) == 1) {
|
|
return current($data);
|
|
} else {
|
|
return $data;
|
|
}
|
|
} else {
|
|
return $this->execute($params);
|
|
}
|
|
}
|
|
/**
|
|
* DQL PARSER
|
|
* parses a DQL query
|
|
* first splits the query in parts and then uses individual
|
|
* parsers for each part
|
|
*
|
|
* @param string $query DQL query
|
|
* @return void
|
|
*/
|
|
final public function parseQuery($query) {
|
|
$this->clear();
|
|
$e = self::bracketExplode($query," ","(",")");
|
|
|
|
$parts = array();
|
|
foreach($e as $k=>$part):
|
|
switch(strtolower($part)):
|
|
case "select":
|
|
case "from":
|
|
case "where":
|
|
case "limit":
|
|
case "offset":
|
|
$p = $part;
|
|
$parts[$part] = array();
|
|
break;
|
|
case "order":
|
|
$p = $part;
|
|
$i = $k+1;
|
|
if(isset($e[$i]) && strtolower($e[$i]) == "by") {
|
|
$parts[$part] = array();
|
|
}
|
|
break;
|
|
case "by":
|
|
continue;
|
|
default:
|
|
$parts[$p][] = $part;
|
|
endswitch;
|
|
endforeach;
|
|
|
|
foreach($parts as $k => $part) {
|
|
$part = implode(" ",$part);
|
|
switch(strtoupper($k)):
|
|
case "SELECT":
|
|
$this->parseSelect($part);
|
|
break;
|
|
case "FROM":
|
|
$this->parseFrom($part);
|
|
break;
|
|
case "WHERE":
|
|
$this->addWhere($this->parseWhere($part));
|
|
break;
|
|
case "ORDER":
|
|
$this->parseOrderBy($part);
|
|
break;
|
|
case "LIMIT":
|
|
$this->parts["limit"] = trim($part);
|
|
break;
|
|
case "OFFSET":
|
|
$this->offset = trim($part);
|
|
break;
|
|
endswitch;
|
|
}
|
|
}
|
|
/**
|
|
* DQL ORDER BY PARSER
|
|
* parses the order by part of the query string
|
|
*
|
|
* @param string $str
|
|
* @return void
|
|
*/
|
|
private function parseOrderBy($str) {
|
|
foreach(explode(",",trim($str)) as $r) {
|
|
$r = trim($r);
|
|
$e = explode(" ",$r);
|
|
$a = explode(".",$e[0]);
|
|
|
|
if(count($a) > 1) {
|
|
$field = array_pop($a);
|
|
$reference = implode(".",$a);
|
|
$name = end($a);
|
|
|
|
$this->load($reference, false);
|
|
$alias = $this->tableAliases[$reference];
|
|
$tname = $this->tables[$alias]->getTableName();
|
|
|
|
$r = $tname.".".$field;
|
|
if(isset($e[1]))
|
|
$r .= " ".$e[1];
|
|
}
|
|
$this->parts["orderby"][] = $r;
|
|
}
|
|
}
|
|
/**
|
|
* DQL SELECT PARSER
|
|
* parses the select part of the query string
|
|
*
|
|
* @param string $str
|
|
* @return void
|
|
*/
|
|
private function parseSelect($str) {
|
|
$this->aggregate = true;
|
|
foreach(explode(",",trim($str)) as $reference) {
|
|
|
|
$e = explode(" AS ",trim($reference));
|
|
|
|
$f = explode("(",$e[0]);
|
|
$a = explode(".",$f[1]);
|
|
$field = substr(array_pop($a),0,-1);
|
|
|
|
$reference = trim(implode(".",$a));
|
|
|
|
$objTable = $this->load($reference);
|
|
if(isset($e[1]))
|
|
$s = " AS $e[1]";
|
|
|
|
$this->parts["columns"][] = $f[0]."(".$objTable->getTableName().".$field)$s";
|
|
|
|
}
|
|
}
|
|
/**
|
|
* DQL GROUP BY PARSER
|
|
* parses the group by part of the query string
|
|
|
|
* @param string $str
|
|
* @return void
|
|
*/
|
|
private function parseGroupBy($str) {
|
|
foreach(explode(",", $str) as $reference) {
|
|
$reference = trim($reference);
|
|
$e = explode(".",$reference);
|
|
$field = array_pop($e);
|
|
$table = $this->load(implode(".",$e));
|
|
$component = $table->getComponentName();
|
|
$this->parts["groupby"][] = $this->tableAliases[$component].".".$field;
|
|
}
|
|
}
|
|
/**
|
|
* DQL FROM PARSER
|
|
* parses the from part of the query string
|
|
|
|
* @param string $str
|
|
* @return void
|
|
*/
|
|
private function parseFrom($str) {
|
|
foreach(self::bracketExplode(trim($str),",", "(",")") as $reference) {
|
|
$reference = trim($reference);
|
|
$a = explode(".",$reference);
|
|
$field = array_pop($a);
|
|
$table = $this->load($reference);
|
|
}
|
|
}
|
|
/**
|
|
* returns Doctrine::FETCH_* constant
|
|
*
|
|
* @param string $mode
|
|
* @return integer
|
|
*/
|
|
private function parseFetchMode($mode) {
|
|
switch(strtolower($mode)):
|
|
case "i":
|
|
case "immediate":
|
|
$fetchmode = Doctrine::FETCH_IMMEDIATE;
|
|
break;
|
|
case "b":
|
|
case "batch":
|
|
$fetchmode = Doctrine::FETCH_BATCH;
|
|
break;
|
|
case "l":
|
|
case "lazy":
|
|
$fetchmode = Doctrine::FETCH_LAZY;
|
|
break;
|
|
case "o":
|
|
case "offset":
|
|
$fetchmode = Doctrine::FETCH_OFFSET;
|
|
break;
|
|
case "lo":
|
|
case "lazyoffset":
|
|
$fetchmode = Doctrine::FETCH_LAZYOFFSET;
|
|
default:
|
|
throw new DQLException("Unknown fetchmode '$mode'. The availible fetchmodes are 'i', 'b' and 'l'.");
|
|
endswitch;
|
|
return $fetchmode;
|
|
}
|
|
/**
|
|
* DQL CONDITION PARSER
|
|
* parses the where/having part of the query string
|
|
*
|
|
*
|
|
* @param string $str
|
|
* @return string
|
|
*/
|
|
private function parseCondition($str, $type = 'Where') {
|
|
|
|
$tmp = trim($str);
|
|
$str = self::bracketTrim($tmp,"(",")");
|
|
|
|
$brackets = false;
|
|
$loadMethod = "load".$type;
|
|
|
|
while($tmp != $str) {
|
|
$brackets = true;
|
|
$tmp = $str;
|
|
$str = self::bracketTrim($str,"(",")");
|
|
}
|
|
|
|
$parts = self::bracketExplode($str," && ","(",")");
|
|
if(count($parts) > 1) {
|
|
$ret = array();
|
|
foreach($parts as $part) {
|
|
$ret[] = $this->parseCondition($part, $type);
|
|
}
|
|
$r = implode(" AND ",$ret);
|
|
} else {
|
|
$parts = self::bracketExplode($str," || ","(",")");
|
|
if(count($parts) > 1) {
|
|
$ret = array();
|
|
foreach($parts as $part) {
|
|
$ret[] = $this->parseCondition($part, $type);
|
|
}
|
|
$r = implode(" OR ",$ret);
|
|
} else {
|
|
return $this->$loadMethod($parts[0]);
|
|
}
|
|
}
|
|
if($brackets)
|
|
return "(".$r.")";
|
|
else
|
|
return $r;
|
|
}
|
|
/**
|
|
* DQL WHERE PARSER
|
|
* parses the where part of the query string
|
|
*
|
|
*
|
|
* @param string $str
|
|
* @return string
|
|
*/
|
|
private function parseWhere($str) {
|
|
return $this->parseCondition($str,'Where');
|
|
}
|
|
/**
|
|
* DQL HAVING PARSER
|
|
* parses the having part of the query string
|
|
*
|
|
*
|
|
* @param string $str
|
|
* @return string
|
|
*/
|
|
private function parseHaving($str) {
|
|
return $this->parseCondition($str,'Having');
|
|
}
|
|
/**
|
|
* trims brackets
|
|
*
|
|
* @param string $str
|
|
* @param string $e1 the first bracket, usually '('
|
|
* @param string $e2 the second bracket, usually ')'
|
|
*/
|
|
public static function bracketTrim($str,$e1,$e2) {
|
|
if(substr($str,0,1) == $e1 && substr($str,-1) == $e2)
|
|
return substr($str,1,-1);
|
|
else
|
|
return $str;
|
|
}
|
|
/**
|
|
* bracketExplode
|
|
* usage:
|
|
* $str = (age < 20 AND age > 18) AND email LIKE 'John@example.com'
|
|
* now exploding $str with parameters $d = ' AND ', $e1 = '(' and $e2 = ')'
|
|
* would return an array:
|
|
* array("(age < 20 AND age > 18)", "email LIKE 'John@example.com'")
|
|
*
|
|
* @param string $str
|
|
* @param string $d the delimeter which explodes the string
|
|
* @param string $e1 the first bracket, usually '('
|
|
* @param string $e2 the second bracket, usually ')'
|
|
*
|
|
*/
|
|
public static function bracketExplode($str,$d,$e1,$e2) {
|
|
$str = explode("$d",$str);
|
|
$i = 0;
|
|
$term = array();
|
|
foreach($str as $key=>$val) {
|
|
if (empty($term[$i])) {
|
|
$term[$i] = trim($val);
|
|
$s1 = substr_count($term[$i],"$e1");
|
|
$s2 = substr_count($term[$i],"$e2");
|
|
if($s1 == $s2) $i++;
|
|
} else {
|
|
$term[$i] .= "$d".trim($val);
|
|
$c1 = substr_count($term[$i],"$e1");
|
|
$c2 = substr_count($term[$i],"$e2");
|
|
if($c1 == $c2) $i++;
|
|
}
|
|
}
|
|
return $term;
|
|
}
|
|
/**
|
|
* DQL Aggregate Function parser
|
|
*
|
|
* @param string $func
|
|
* @return mixed
|
|
*/
|
|
private function parseAggregateFunction($func) {
|
|
$pos = strpos($func,"(");
|
|
|
|
if($pos !== false) {
|
|
|
|
$funcs = array();
|
|
|
|
$name = substr($func, 0, $pos);
|
|
$func = substr($func, ($pos + 1), -1);
|
|
$params = self::bracketExplode($func, ",", "(", ")");
|
|
|
|
foreach($params as $k => $param) {
|
|
$params[$k] = $this->parseAggregateFunction($param);
|
|
}
|
|
|
|
$funcs = $name."(".implode(", ", $params).")";
|
|
|
|
return $funcs;
|
|
|
|
} else {
|
|
if( ! is_numeric($func)) {
|
|
$a = explode(".",$func);
|
|
$field = array_pop($a);
|
|
$reference = implode(".",$a);
|
|
$table = $this->load($reference, false);
|
|
$func = $this->tableAliases[$reference].".".$field;
|
|
|
|
return $func;
|
|
} else {
|
|
return $func;
|
|
}
|
|
}
|
|
}
|
|
/**
|
|
* loadHaving
|
|
* returns the parsed query part
|
|
*
|
|
* @param string $having
|
|
* @return string
|
|
*/
|
|
private function loadHaving($having) {
|
|
$e = self::bracketExplode($having," ","(",")");
|
|
|
|
$r = array_shift($e);
|
|
$t = explode("(",$r);
|
|
|
|
$count = count($t);
|
|
$r = $this->parseAggregateFunction($r);
|
|
$operator = array_shift($e);
|
|
$value = implode(" ",$e);
|
|
$r .= " ".$operator." ".$value;
|
|
|
|
return $r;
|
|
}
|
|
/**
|
|
* loadWhere
|
|
* returns the parsed query part
|
|
*
|
|
* @param string $where
|
|
* @return string
|
|
*/
|
|
private function loadWhere($where) {
|
|
$e = explode(" ",$where);
|
|
$r = array_shift($e);
|
|
$a = explode(".",$r);
|
|
|
|
|
|
if(count($a) > 1) {
|
|
$field = array_pop($a);
|
|
$operator = array_shift($e);
|
|
$value = implode(" ",$e);
|
|
$reference = implode(".",$a);
|
|
$count = count($a);
|
|
|
|
$table = $this->load($reference, false);
|
|
$where = $this->tableAliases[$reference].".".$field." ".$operator." ".$value;
|
|
}
|
|
return $where;
|
|
}
|
|
/**
|
|
* generateAlias
|
|
*
|
|
* @param string $tableName
|
|
* @return string
|
|
*/
|
|
final public function generateAlias($tableName) {
|
|
if(isset($this->tableIndexes[$tableName])) {
|
|
return $tableName.++$this->tableIndexes[$tableName];
|
|
} else {
|
|
$this->tableIndexes[$tableName] = 1;
|
|
return $tableName;
|
|
}
|
|
}
|
|
/**
|
|
* getTableAlias
|
|
*
|
|
* @param string $path
|
|
* @return string
|
|
*/
|
|
final public function getTableAlias($path) {
|
|
if( ! isset($this->tableAliases[$path]))
|
|
return false;
|
|
|
|
return $this->tableAliases[$path];
|
|
}
|
|
/**
|
|
* loads a component
|
|
*
|
|
* @param string $path the path of the loadable component
|
|
* @param integer $fetchmode optional fetchmode, if not set the components default fetchmode will be used
|
|
* @throws DQLException
|
|
* @return Doctrine_Table
|
|
*/
|
|
final public function load($path, $loadFields = true) {
|
|
$e = preg_split("/[.:]/",$path);
|
|
$index = 0;
|
|
$currPath = '';
|
|
|
|
foreach($e as $key => $fullname) {
|
|
try {
|
|
$copy = $e;
|
|
|
|
$e2 = preg_split("/[-(]/",$fullname);
|
|
$name = $e2[0];
|
|
|
|
$currPath .= ".".$name;
|
|
|
|
if($key == 0) {
|
|
$currPath = substr($currPath,1);
|
|
|
|
$table = $this->session->getTable($name);
|
|
|
|
$tname = $table->getTableName();
|
|
|
|
if( ! isset($this->tableAliases[$currPath]))
|
|
$this->tableIndexes[$tname] = 1;
|
|
|
|
$this->parts["from"][$tname] = true;
|
|
|
|
$this->tableAliases[$currPath] = $tname;
|
|
|
|
$tableName = $tname;
|
|
} else {
|
|
|
|
$index += strlen($e[($key - 1)]) + 1;
|
|
// the mark here is either '.' or ':'
|
|
$mark = substr($path,($index - 1),1);
|
|
|
|
if(isset($this->tableAliases[$prevPath])) {
|
|
$tname = $this->tableAliases[$prevPath];
|
|
} else
|
|
$tname = $table->getTableName();
|
|
|
|
|
|
$fk = $table->getForeignKey($name);
|
|
$name = $fk->getTable()->getComponentName();
|
|
$original = $fk->getTable()->getTableName();
|
|
|
|
if(isset($this->tableAliases[$currPath])) {
|
|
$tname2 = $this->tableAliases[$currPath];
|
|
} else
|
|
$tname2 = $this->generateAlias($original);
|
|
|
|
if($original !== $tname2)
|
|
$aliasString = $original." AS ".$tname2;
|
|
else
|
|
$aliasString = $original;
|
|
|
|
switch($mark):
|
|
case ":":
|
|
$join = 'INNER JOIN ';
|
|
break;
|
|
case ".":
|
|
$join = 'LEFT JOIN ';
|
|
break;
|
|
default:
|
|
throw new Doctrine_Exception("Unknown operator '$mark'");
|
|
endswitch;
|
|
|
|
|
|
if($fk instanceof Doctrine_ForeignKey ||
|
|
$fk instanceof Doctrine_LocalKey) {
|
|
|
|
$this->parts["join"][$tname][$tname2] = $join.$aliasString." ON ".$tname.".".$fk->getLocal()." = ".$tname2.".".$fk->getForeign();
|
|
|
|
} elseif($fk instanceof Doctrine_Association) {
|
|
$asf = $fk->getAssociationFactory();
|
|
|
|
$assocTableName = $asf->getTableName();
|
|
|
|
$this->parts["join"][$tname][$assocTableName] = $join.$assocTableName." ON ".$tname.".id = ".$assocTableName.".".$fk->getLocal();
|
|
$this->parts["join"][$tname][$tname2] = $join.$aliasString." ON ".$tname2.".id = ".$assocTableName.".".$fk->getForeign();
|
|
}
|
|
|
|
$this->joins[$tname2] = $prevTable;
|
|
|
|
|
|
$table = $fk->getTable();
|
|
$this->tableAliases[$currPath] = $tname2;
|
|
|
|
$tableName = $tname2;
|
|
}
|
|
|
|
|
|
// parse the fetchmode and load table fields
|
|
|
|
if( ! isset($this->tables[$tableName])) {
|
|
$this->tables[$tableName] = $table;
|
|
|
|
if($loadFields && ! $this->aggregate) {
|
|
$fields = array();
|
|
|
|
if(strpos($fullname, "-") === false) {
|
|
$fetchmode = $table->getAttribute(Doctrine::ATTR_FETCHMODE);
|
|
|
|
if(isset($e2[1]))
|
|
$fields = explode(",",substr($e2[1],0,-1));
|
|
|
|
} else {
|
|
if(isset($e2[1])) {
|
|
$fetchmode = $this->parseFetchMode($e2[1]);
|
|
} else
|
|
$fetchmode = $table->getAttribute(Doctrine::ATTR_FETCHMODE);
|
|
|
|
if(isset($e2[2]))
|
|
$fields = explode(",",substr($e2[2],0,-1));
|
|
}
|
|
|
|
$this->loadFields($table, $fetchmode, $fields, $currPath);
|
|
}
|
|
}
|
|
|
|
$prevPath = $currPath;
|
|
$prevTable = $tableName;
|
|
} catch(Exception $e) {
|
|
throw new DQLException($e->__toString());
|
|
}
|
|
}
|
|
return $table;
|
|
}
|
|
}
|
|
|
|
?>
|