Pluf Framework

Pluf Framework Commit Details


Date:2008-12-03 07:59:33 (16 years 18 days ago)
Author:Loic d'Anterroches
Branch:develop, master
Commit:1c162797b48b1ea00ea64c2213fca8d447f138d4
Parents: 964dc2d87da9c823572ce892d4b57aea048127b1
Message:Added a special iterator for some models.

Changes:

File differences

src/Pluf/Model/Set.php
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<?php
/* -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
# ***** BEGIN LICENSE BLOCK *****
# This file is part of Plume Framework, a simple PHP Application Framework.
# Copyright (C) 2001-2007 Loic d'Anterroches and contributors.
#
# Plume Framework is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
#
# Plume Framework is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
# ***** END LICENSE BLOCK ***** */
/**
* Allow to iterate over an array of standard classes with
* 'model_class' and 'model_id' properties set.
*
* Optional properties from the classses can also be extracted and
* added as properties to the model.
*
* Suppose you have a $data array with:
* array(
* (object) array('model_class' => 'MyApp_Item',
* 'model_id' => 32,
* 'foo' => 'bingo plus'),
* (object) array('model_class' => 'MyApp_Bong',
* 'model_id' => 12,
* 'foo' => 'youpla'),
* (object) array('model_class' => 'MyApp_Item',
* 'model_id' => 14,
* 'foo' => 'bingo'),
* );
*
* You can do:
* $set = new Pluf_Model_Set($data, array('foo' => '_Foo'));
* foreach ($set as $res) {
* echo $res; // Will be the loaded model based on the class and id.
* echo $res->_Foo; // will contain the value foo of the $data array.
* }
*
*/
class Pluf_Model_Set implements Iterator, ArrayAccess
{
protected $data = array();
protected $keys = array();
public function __construct($data, $keys=array())
{
$this->data = $data;
$this->keys = $keys;
reset($this->data);
}
/**
* Get the current item.
*/
public function current()
{
$i = current($this->data);
$item = Pluf::factory($i->model_class, $i->model_id);
foreach ($this->keys as $key => $val) {
$item->$val = $i->$key;
}
return $item;
}
public function key()
{
return key($this->data);
}
public function next()
{
next($this->data);
}
public function rewind()
{
reset($this->data);
}
public function valid()
{
// We know that the boolean false will not be stored as a
// field, so we can test against false to check if valid or
// not.
return (false !== current($this->data));
}
public function count()
{
return count($this->data);
}
public function offsetUnset($index)
{
unset($this->data[$index]);
}
public function offsetSet($index, $value)
{
if (!is_object($value) or
is_subclass_of($value, 'Pluf_Model')) {
throw new Exception('Must be a subclass of Pluf_Model: '.$value);
}
$res = array('model_class' => $value->_model,
'model_id' => $value->id);
foreach ($this->keys as $key => $name) {
$res[$key] = (isset($value->$name)) ? $value->$name : null;
}
$this->data[$index] = (object) $res;
}
public function offsetGet($index)
{
if (!isset($this->data[$index])) {
throw new Exception('Undefined index: '.$index);
}
$i = $this->data[$index];
$item = Pluf::factory($i->model_class, $i->model_id);
foreach ($this->keys as $key => $val) {
$item->$val = $i->$key;
}
return $item;
}
public function offsetExists($index)
{
return (isset($this->data[$index]));
}
}

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