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doctrine2/lib/Doctrine/Resource/Query.php

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2007-09-21 22:01:08 +04:00
<?php
class Doctrine_Resource_Query extends Doctrine_Resource
{
public $config = array();
public $parts = array();
public $dql = null;
public $defaultFormat = 'xml';
public function __construct($config)
{
$this->config = $config;
}
public function query($dql, $params = array())
{
$this->dql = $dql;
return $this->execute($params);
}
public function execute($params = array())
{
$request = array();
$request['dql'] = $this->getDql();
$request['params'] = $params;
$request['format'] = $this->getFormat();
$request['type'] = 'query';
$response = self::request($this->config['url'], $request);
return $this->parseResponse($response);
}
public function getDql()
{
if (!$this->dql && !empty($this->parts)) {
$q = '';
$q .= ( ! empty($this->parts['select']))? 'SELECT ' . implode(', ', $this->parts['select']) : '';
$q .= ( ! empty($this->parts['from']))? ' FROM ' . implode(' ', $this->parts['from']) : '';
$q .= ( ! empty($this->parts['where']))? ' WHERE ' . implode(' AND ', $this->parts['where']) : '';
$q .= ( ! empty($this->parts['groupby']))? ' GROUP BY ' . implode(', ', $this->parts['groupby']) : '';
$q .= ( ! empty($this->parts['having']))? ' HAVING ' . implode(' AND ', $this->parts['having']) : '';
$q .= ( ! empty($this->parts['orderby']))? ' ORDER BY ' . implode(', ', $this->parts['orderby']) : '';
$q .= ( ! empty($this->parts['limit']))? ' LIMIT ' . implode(' ', $this->parts['limit']) : '';
$q .= ( ! empty($this->parts['offset']))? ' OFFSET ' . implode(' ', $this->parts['offset']) : '';
return $q;
} else {
return $this->dql;
}
}
public function parseResponse($response)
{
$array = Doctrine_Parser::load($response, $this->getFormat());
$hydrated = $this->hydrate($array);
return $hydrated;
}
public function buildUrl($array)
{
$url = '';
foreach ($array as $key => $value) {
if (is_array($value)) {
$url .= $this->buildUrl($value);
} else {
$url .= $key.'='.$value.'&';
}
}
return $url;
}
public function hydrate(array $array, $passedKey = null)
{
$model = $passedKey ? $passedKey:$this->getModel();
$collection = new Doctrine_Resource_Collection();
$collection->model = $model;
$collection->config = $this->config;
foreach ($array as $record) {
$r = new Doctrine_Resource_Record();
$r->config = $this->config;
$r->model = $model;
foreach ($record as $key => $value) {
if (is_array($value)) {
$r->data[$key] = $this->hydrate($value, $key);
} else {
$r->data[$key] = $value;
}
}
$collection->data[] = $r;
}
return $collection;
}
public function getModel()
{
$dql = $this->getDql();
$e = explode('FROM ', $dql);
$e = explode(' ', $e[1]);
return $e[0];
}
public function setFormat($format)
{
$this->config['format'] = $format;
return $this;
}
public function getFormat()
{
return isset($this->config['format']) ? $this->config['format']:$this->defaultFormat;
}
/**
* addSelect
* adds fields to the SELECT part of the query
*
* @param string $select Query SELECT part
* @return Doctrine_Query
*/
public function addSelect($select)
{
return $this->parseQueryPart('select', $select, true);
}
/**
* addFrom
* adds fields to the FROM part of the query
*
* @param string $from Query FROM part
* @return Doctrine_Query
*/
public function addFrom($from)
{
return $this->parseQueryPart('from', $from, true);
}
/**
* addWhere
* adds conditions to the WHERE part of the query
*
* @param string $where Query WHERE part
* @param mixed $params an array of parameters or a simple scalar
* @return Doctrine_Query
*/
public function addWhere($where, $params = array())
{
if (is_array($params)) {
$this->_params['where'] = array_merge($this->_params['where'], $params);
} else {
$this->_params['where'][] = $params;
}
return $this->parseQueryPart('where', $where, true);
}
/**
* whereIn
* adds IN condition to the query WHERE part
*
* @param string $expr
* @param mixed $params an array of parameters or a simple scalar
* @return Doctrine_Query
*/
public function whereIn($expr, $params = array())
{
$params = (array) $params;
$a = array();
foreach ($params as $k => $value) {
if ($value instanceof Doctrine_Expression) {
$value = $value->getSql();
unset($params[$k]);
} else {
$value = '?';
}
$a[] = $value;
}
$this->_params['where'] = array_merge($this->_params['where'], $params);
$where = $expr . ' IN (' . implode(', ', $a) . ')';
return $this->parseQueryPart('where', $where, true);
}
/**
* addGroupBy
* adds fields to the GROUP BY part of the query
*
* @param string $groupby Query GROUP BY part
* @return Doctrine_Query
*/
public function addGroupBy($groupby)
{
return $this->parseQueryPart('groupby', $groupby, true);
}
/**
* addHaving
* adds conditions to the HAVING part of the query
*
* @param string $having Query HAVING part
* @param mixed $params an array of parameters or a simple scalar
* @return Doctrine_Query
*/
public function addHaving($having, $params = array())
{
if (is_array($params)) {
$this->_params['having'] = array_merge($this->_params['having'], $params);
} else {
$this->_params['having'][] = $params;
}
return $this->parseQueryPart('having', $having, true);
}
/**
* addOrderBy
* adds fields to the ORDER BY part of the query
*
* @param string $orderby Query ORDER BY part
* @return Doctrine_Query
*/
public function addOrderBy($orderby)
{
return $this->parseQueryPart('orderby', $orderby, true);
}
/**
* select
* sets the SELECT part of the query
*
* @param string $select Query SELECT part
* @return Doctrine_Query
*/
public function select($select)
{
return $this->parseQueryPart('select', $select);
}
/**
* distinct
* Makes the query SELECT DISTINCT.
*
* @param bool $flag Whether or not the SELECT is DISTINCT (default true).
* @return Doctrine_Query
*/
public function distinct($flag = true)
{
$this->parts['distinct'] = (bool) $flag;
return $this;
}
/**
* forUpdate
* Makes the query SELECT FOR UPDATE.
*
* @param bool $flag Whether or not the SELECT is FOR UPDATE (default true).
* @return Doctrine_Query
*/
public function forUpdate($flag = true)
{
$this->parts[self::FOR_UPDATE] = (bool) $flag;
return $this;
}
/**
* delete
* sets the query type to DELETE
*
* @return Doctrine_Query
*/
public function delete()
{
$this->type = self::DELETE;
return $this;
}
/**
* update
* sets the UPDATE part of the query
*
* @param string $update Query UPDATE part
* @return Doctrine_Query
*/
public function update($update)
{
$this->type = self::UPDATE;
return $this->parseQueryPart('from', $update);
}
/**
* set
* sets the SET part of the query
*
* @param string $update Query UPDATE part
* @return Doctrine_Query
*/
public function set($key, $value, $params = null)
{
if (is_array($key)) {
foreach ($key as $k => $v) {
$this->set($k, '?', array($v));
}
} else {
if ($params !== null) {
if (is_array($params)) {
$this->_params['set'] = array_merge($this->_params['set'], $params);
} else {
$this->_params['set'][] = $params;
}
}
return $this->parseQueryPart('set', $key . ' = ' . $value, true);
}
}
/**
* from
* sets the FROM part of the query
*
* @param string $from Query FROM part
* @return Doctrine_Query
*/
public function from($from)
{
return $this->parseQueryPart('from', $from);
}
/**
* innerJoin
* appends an INNER JOIN to the FROM part of the query
*
* @param string $join Query INNER JOIN
* @return Doctrine_Query
*/
public function innerJoin($join)
{
return $this->parseQueryPart('from', 'INNER JOIN ' . $join, true);
}
/**
* leftJoin
* appends a LEFT JOIN to the FROM part of the query
*
* @param string $join Query LEFT JOIN
* @return Doctrine_Query
*/
public function leftJoin($join)
{
return $this->parseQueryPart('from', 'LEFT JOIN ' . $join, true);
}
/**
* groupBy
* sets the GROUP BY part of the query
*
* @param string $groupby Query GROUP BY part
* @return Doctrine_Query
*/
public function groupBy($groupby)
{
return $this->parseQueryPart('groupby', $groupby);
}
/**
* where
* sets the WHERE part of the query
*
* @param string $join Query WHERE part
* @param mixed $params an array of parameters or a simple scalar
* @return Doctrine_Query
*/
public function where($where, $params = array())
{
$this->_params['where'] = array();
if (is_array($params)) {
$this->_params['where'] = $params;
} else {
$this->_params['where'][] = $params;
}
return $this->parseQueryPart('where', $where);
}
/**
* having
* sets the HAVING part of the query
*
* @param string $having Query HAVING part
* @param mixed $params an array of parameters or a simple scalar
* @return Doctrine_Query
*/
public function having($having, $params = array())
{
$this->_params['having'] = array();
if (is_array($params)) {
$this->_params['having'] = $params;
} else {
$this->_params['having'][] = $params;
}
return $this->parseQueryPart('having', $having);
}
/**
* orderBy
* sets the ORDER BY part of the query
*
* @param string $orderby Query ORDER BY part
* @return Doctrine_Query
*/
public function orderBy($orderby)
{
return $this->parseQueryPart('orderby', $orderby);
}
/**
* limit
* sets the Query query limit
*
* @param integer $limit limit to be used for limiting the query results
* @return Doctrine_Query
*/
public function limit($limit)
{
return $this->parseQueryPart('limit', $limit);
}
/**
* offset
* sets the Query query offset
*
* @param integer $offset offset to be used for paginating the query
* @return Doctrine_Query
*/
public function offset($offset)
{
return $this->parseQueryPart('offset', $offset);
}
/**
* parseQueryPart
* parses given DQL query part
*
* @param string $queryPartName the name of the query part
* @param string $queryPart query part to be parsed
* @return Doctrine_Query this object
*/
public function parseQueryPart($queryPartName, $queryPart)
{
$this->parts[$queryPartName][] = $queryPart;
return $this;
}
}