Merge remote-tracking branch 'weierophinney/feature/view-layer'

src/Writer/Exception/InvalidArgumentException.php

@@ -0,0 +1,40 @@
+<?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_Feed
+ * @subpackage Writer
+ * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+
+namespace Zend\Feed\Writer\Exception;
+
+use Zend\Feed\Writer\Exception;
+
+/**
+ * Feed exceptions
+ *
+ * Class to represent exceptions that occur during Feed operations.
+ *
+ * @category   Zend
+ * @package    Zend_Feed
+ * @subpackage Writer
+ * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class InvalidArgumentException 
+    extends \InvalidArgumentException 
+    implements Exception
+{}

src/Writer/FeedFactory.php

@@ -0,0 +1,145 @@
+<?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_Feed
+ * @subpackage Writer
+ * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+
+/**
+* @namespace
+*/
+namespace Zend\Feed\Writer;
+
+/**
+ * @category   Zend
+ * @package    Zend_Feed
+ * @subpackage Writer
+ * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd New BSD License
+ */
+abstract class FeedFactory
+{
+    /**
+     * Create and return a Feed basd on data provided.
+     * 
+     * @param  array|Traversable $data 
+     * @return Feed
+     */
+    public static function factory($data)
+    {
+        if (!is_array($data) && !$data instanceof Traversable) {
+            throw Exception\InvalidArgumentException(sprintf(
+                '%s expects an array or Traversable argument; received "%s"',
+                __METHOD__,
+                (is_object($data) ? get_class($data) : gettype($data))
+            ));
+        }
+
+        $feed = new Feed();
+
+        foreach ($data as $key => $value) {
+            // Setters
+            $key    = static::convertKey($key);
+            $method = 'set' . $key;
+            if (method_exists($feed, $method)) {
+                switch ($method) {
+                    case 'setfeedlink':
+                        if (!is_array($value)) {
+                            // Need an array
+                            break;
+                        }
+                        if (!array_key_exists('link', $value) || !array_key_exists('type', $value)) {
+                            // Need both keys to set this correctly
+                            break;
+                        }
+                        $feed->setFeedLink($value['link'], $value['type']);
+                        break;
+                    default:
+                        $feed->$method($value);
+                        break;
+                }
+                continue;
+            }
+
+            // Entries
+            if ('entries' == $key) {
+                static::createEntries($value, $feed);
+                continue;
+            }
+        }
+
+        return $feed;
+    }
+
+    /**
+     * Normalize a key
+     * 
+     * @param  string $key 
+     * @return void
+     */
+    protected static function convertKey($key)
+    {
+        $key = str_replace('_', '', strtolower($key));
+        return $key;
+    }
+
+    /**
+     * Create and attach entries to a feed
+     * 
+     * @param  array|Traversable $entries 
+     * @param  Feed $feed 
+     * @return void
+     */
+    protected static function createEntries($entries, Feed $feed)
+    {
+        if (!is_array($entries) && !$entries instanceof Traversable) {
+            throw new Exception\InvalidArgumentException(sprintf(
+                '%s::factory expects the "entries" value to be an array or Traversable; received "%s"',
+                get_called_class(),
+                (is_object($entries) ? get_class($entries) : gettype($entries))
+            ));
+        }
+
+        foreach ($entries as $data) {
+            if (!is_array($data) && !$data instanceof Traversable && !$data instanceof Entry) {
+                throw Exception\InvalidArgumentException(sprintf(
+                    '%s expects an array, Traversable, or Zend\Feed\Writer\Entry argument; received "%s"',
+                    __METHOD__,
+                    (is_object($data) ? get_class($data) : gettype($data))
+                ));
+            }
+
+            // Use case 1: Entry item
+            if ($data instanceof Entry) {
+                $feed->addEntry($data);
+                continue;
+            }
+
+            // Use case 2: iterate item and populate entry
+            $entry = $feed->createEntry();
+            foreach ($data as $key => $value) {
+                $key    = static::convertKey($key);
+                $method = 'set' . $key;
+                if (!method_exists($entry, $method)) {
+                    continue;
+                }
+                $entry->$method($value);
+            }
+            $feed->addEntry($entry);
+        }
+    }
+}