diff -r 5b37998e522e -r 162c1de6545a web/lib/Zend/Dojo/Data.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/Zend/Dojo/Data.php	Fri Mar 11 15:05:35 2011 +0100
@@ -0,0 +1,563 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Dojo
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Data.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+/**
+ * dojo.data support for Zend Framework
+ *
+ * @uses       ArrayAccess
+ * @uses       Iterator
+ * @uses       Countable
+ * @package    Zend_Dojo
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Dojo_Data implements ArrayAccess,Iterator,Countable
+{
+    /**
+     * Identifier field of item
+     * @var string|int
+     */
+    protected $_identifier;
+
+    /**
+     * Collected items
+     * @var array
+     */
+    protected $_items = array();
+
+    /**
+     * Label field of item
+     * @var string
+     */
+    protected $_label;
+
+    /**
+     * Data container metadata
+     * @var array
+     */
+    protected $_metadata = array();
+
+    /**
+     * Constructor
+     *
+     * @param  string|null $identifier
+     * @param  array|Traversable|null $items
+     * @param  string|null $label
+     * @return void
+     */
+    public function __construct($identifier = null, $items = null, $label = null)
+    {
+        if (null !== $identifier) {
+            $this->setIdentifier($identifier);
+        }
+        if (null !== $items) {
+            $this->setItems($items);
+        }
+        if (null !== $label) {
+            $this->setLabel($label);
+        }
+    }
+
+    /**
+     * Set the items to collect
+     *
+     * @param array|Traversable $items
+     * @return Zend_Dojo_Data
+     */
+    public function setItems($items)
+    {
+        $this->clearItems();
+        return $this->addItems($items);
+    }
+
+    /**
+     * Set an individual item, optionally by identifier (overwrites)
+     *
+     * @param  array|object $item
+     * @param  string|null $identifier
+     * @return Zend_Dojo_Data
+     */
+    public function setItem($item, $id = null)
+    {
+        $item = $this->_normalizeItem($item, $id);
+        $this->_items[$item['id']] = $item['data'];
+        return $this;
+    }
+
+    /**
+     * Add an individual item, optionally by identifier
+     *
+     * @param  array|object $item
+     * @param  string|null $id
+     * @return Zend_Dojo_Data
+     */
+    public function addItem($item, $id = null)
+    {
+        $item = $this->_normalizeItem($item, $id);
+
+        if ($this->hasItem($item['id'])) {
+            require_once 'Zend/Dojo/Exception.php';
+            throw new Zend_Dojo_Exception('Overwriting items using addItem() is not allowed');
+        }
+
+        $this->_items[$item['id']] = $item['data'];
+
+        return $this;
+    }
+
+    /**
+     * Add multiple items at once
+     *
+     * @param  array|Traversable $items
+     * @return Zend_Dojo_Data
+     */
+    public function addItems($items)
+    {
+        if (!is_array($items) && (!is_object($items) || !($items instanceof Traversable))) {
+            require_once 'Zend/Dojo/Exception.php';
+            throw new Zend_Dojo_Exception('Only arrays and Traversable objects may be added to ' . __CLASS__);
+        }
+
+        foreach ($items as $item) {
+            $this->addItem($item);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Get all items as an array
+     *
+     * Serializes items to arrays.
+     *
+     * @return array
+     */
+    public function getItems()
+    {
+        return $this->_items;
+    }
+
+    /**
+     * Does an item with the given identifier exist?
+     *
+     * @param  string|int $id
+     * @return bool
+     */
+    public function hasItem($id)
+    {
+        return array_key_exists($id, $this->_items);
+    }
+
+    /**
+     * Retrieve an item by identifier
+     *
+     * Item retrieved will be flattened to an array.
+     *
+     * @param  string $id
+     * @return array
+     */
+    public function getItem($id)
+    {
+        if (!$this->hasItem($id)) {
+            return null;
+        }
+
+        return $this->_items[$id];
+    }
+
+    /**
+     * Remove item by identifier
+     *
+     * @param  string $id
+     * @return Zend_Dojo_Data
+     */
+    public function removeItem($id)
+    {
+        if ($this->hasItem($id)) {
+            unset($this->_items[$id]);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Remove all items at once
+     *
+     * @return Zend_Dojo_Data
+     */
+    public function clearItems()
+    {
+        $this->_items = array();
+        return $this;
+    }
+
+
+    /**
+     * Set identifier for item lookups
+     *
+     * @param  string|int|null $identifier
+     * @return Zend_Dojo_Data
+     */
+    public function setIdentifier($identifier)
+    {
+        if (null === $identifier) {
+            $this->_identifier = null;
+        } elseif (is_string($identifier)) {
+            $this->_identifier = $identifier;
+        } elseif (is_numeric($identifier)) {
+            $this->_identifier = (int) $identifier;
+        } else {
+            require_once 'Zend/Dojo/Exception.php';
+            throw new Zend_Dojo_Exception('Invalid identifier; please use a string or integer');
+        }
+
+        return $this;
+    }
+
+    /**
+     * Retrieve current item identifier
+     *
+     * @return string|int|null
+     */
+    public function getIdentifier()
+    {
+        return $this->_identifier;
+    }
+
+
+    /**
+     * Set label to use for displaying item associations
+     *
+     * @param  string|null $label
+     * @return Zend_Dojo_Data
+     */
+    public function setLabel($label)
+    {
+        if (null === $label) {
+            $this->_label = null;
+        } else {
+            $this->_label = (string) $label;
+        }
+        return $this;
+    }
+
+    /**
+     * Retrieve item association label
+     *
+     * @return string|null
+     */
+    public function getLabel()
+    {
+        return $this->_label;
+    }
+
+    /**
+     * Set metadata by key or en masse
+     *
+     * @param  string|array $spec
+     * @param  mixed $value
+     * @return Zend_Dojo_Data
+     */
+    public function setMetadata($spec, $value = null)
+    {
+        if (is_string($spec) && (null !== $value)) {
+            $this->_metadata[$spec] = $value;
+        } elseif (is_array($spec)) {
+            foreach ($spec as $key => $value) {
+                $this->setMetadata($key, $value);
+            }
+        }
+        return $this;
+    }
+
+    /**
+     * Get metadata item or all metadata
+     *
+     * @param  null|string $key Metadata key when pulling single metadata item
+     * @return mixed
+     */
+    public function getMetadata($key = null)
+    {
+        if (null === $key) {
+            return $this->_metadata;
+        }
+
+        if (array_key_exists($key, $this->_metadata)) {
+            return $this->_metadata[$key];
+        }
+
+        return null;
+    }
+
+    /**
+     * Clear individual or all metadata item(s)
+     *
+     * @param  null|string $key
+     * @return Zend_Dojo_Data
+     */
+    public function clearMetadata($key = null)
+    {
+        if (null === $key) {
+            $this->_metadata = array();
+        } elseif (array_key_exists($key, $this->_metadata)) {
+            unset($this->_metadata[$key]);
+        }
+        return $this;
+    }
+
+    /**
+     * Load object from array
+     *
+     * @param  array $data
+     * @return Zend_Dojo_Data
+     */
+    public function fromArray(array $data)
+    {
+        if (array_key_exists('identifier', $data)) {
+            $this->setIdentifier($data['identifier']);
+        }
+        if (array_key_exists('label', $data)) {
+            $this->setLabel($data['label']);
+        }
+        if (array_key_exists('items', $data) && is_array($data['items'])) {
+            $this->setItems($data['items']);
+        } else {
+            $this->clearItems();
+        }
+        return $this;
+    }
+
+    /**
+     * Load object from JSON
+     *
+     * @param  string $json
+     * @return Zend_Dojo_Data
+     */
+    public function fromJson($json)
+    {
+        if (!is_string($json)) {
+            require_once 'Zend/Dojo/Exception.php';
+            throw new Zend_Dojo_Exception('fromJson() expects JSON input');
+        }
+        require_once 'Zend/Json.php';
+        $data = Zend_Json::decode($json);
+        return $this->fromArray($data);
+    }
+
+    /**
+     * Seralize entire data structure, including identifier and label, to array
+     *
+     * @return array
+     */
+    public function toArray()
+    {
+        if (null === ($identifier = $this->getIdentifier())) {
+            require_once 'Zend/Dojo/Exception.php';
+            throw new Zend_Dojo_Exception('Serialization requires that an identifier be present in the object; first call setIdentifier()');
+        }
+
+        $array = array(
+            'identifier' => $identifier,
+            'items'      => array_values($this->getItems()),
+        );
+
+        $metadata = $this->getMetadata();
+        if (!empty($metadata)) {
+            foreach ($metadata as $key => $value) {
+                $array[$key] = $value;
+            }
+        }
+
+        if (null !== ($label = $this->getLabel())) {
+            $array['label'] = $label;
+        }
+
+        return $array;
+    }
+
+    /**
+     * Serialize to JSON (dojo.data format)
+     *
+     * @return string
+     */
+    public function toJson()
+    {
+        require_once 'Zend/Json.php';
+        return Zend_Json::encode($this->toArray());
+    }
+
+    /**
+     * Serialize to string (proxy to {@link toJson()})
+     *
+     * @return string
+     */
+    public function __toString()
+    {
+        return $this->toJson();
+    }
+
+    /**
+     * ArrayAccess: does offset exist?
+     *
+     * @param  string|int $offset
+     * @return bool
+     */
+    public function offsetExists($offset)
+    {
+        return (null !== $this->getItem($offset));
+    }
+
+    /**
+     * ArrayAccess: retrieve by offset
+     *
+     * @param  string|int $offset
+     * @return array
+     */
+    public function offsetGet($offset)
+    {
+        return $this->getItem($offset);
+    }
+
+    /**
+     * ArrayAccess: set value by offset
+     *
+     * @param  string $offset
+     * @param  array|object|null $value
+     * @return void
+     */
+    public function offsetSet($offset, $value)
+    {
+        $this->setItem($value, $offset);
+    }
+
+    /**
+     * ArrayAccess: unset value by offset
+     *
+     * @param  string $offset
+     * @return void
+     */
+    public function offsetUnset($offset)
+    {
+        $this->removeItem($offset);
+    }
+
+    /**
+     * Iterator: get current value
+     *
+     * @return array
+     */
+    public function current()
+    {
+        return current($this->_items);
+    }
+
+    /**
+     * Iterator: get current key
+     *
+     * @return string|int
+     */
+    public function key()
+    {
+        return key($this->_items);
+    }
+
+    /**
+     * Iterator: get next item
+     *
+     * @return void
+     */
+    public function next()
+    {
+        return next($this->_items);
+    }
+
+    /**
+     * Iterator: rewind to first value in collection
+     *
+     * @return void
+     */
+    public function rewind()
+    {
+        return reset($this->_items);
+    }
+
+    /**
+     * Iterator: is item valid?
+     *
+     * @return bool
+     */
+    public function valid()
+    {
+        return (bool) $this->current();
+    }
+
+    /**
+     * Countable: how many items are present
+     *
+     * @return int
+     */
+    public function count()
+    {
+        return count($this->_items);
+    }
+
+    /**
+     * Normalize an item to attach to the collection
+     *
+     * @param  array|object $item
+     * @param  string|int|null $id
+     * @return array
+     */
+    protected function _normalizeItem($item, $id)
+    {
+        if (null === ($identifier = $this->getIdentifier())) {
+            require_once 'Zend/Dojo/Exception.php';
+            throw new Zend_Dojo_Exception('You must set an identifier prior to adding items');
+        }
+
+        if (!is_object($item) && !is_array($item)) {
+            require_once 'Zend/Dojo/Exception.php';
+            throw new Zend_Dojo_Exception('Only arrays and objects may be attached');
+        }
+
+        if (is_object($item)) {
+            if (method_exists($item, 'toArray')) {
+                $item = $item->toArray();
+            } else {
+                $item = get_object_vars($item);
+            }
+        }
+
+        if ((null === $id) && !array_key_exists($identifier, $item)) {
+            require_once 'Zend/Dojo/Exception.php';
+            throw new Zend_Dojo_Exception('Item must contain a column matching the currently set identifier');
+        } elseif (null === $id) {
+            $id = $item[$identifier];
+        } else {
+            $item[$identifier] = $id;
+        }
+
+        return array(
+            'id'   => $id,
+            'data' => $item,
+        );
+    }
+}