5 * A PHP-Based RSS and Atom Feed Framework.
6 * Takes the hard work out of managing a complete RSS/Atom solution.
8 * Copyright (c) 2004-2009, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors
11 * Redistribution and use in source and binary forms, with or without modification, are
12 * permitted provided that the following conditions are met:
14 * * Redistributions of source code must retain the above copyright notice, this list of
15 * conditions and the following disclaimer.
17 * * Redistributions in binary form must reproduce the above copyright notice, this list
18 * of conditions and the following disclaimer in the documentation and/or other materials
19 * provided with the distribution.
21 * * Neither the name of the SimplePie Team nor the names of its contributors may be used
22 * to endorse or promote products derived from this software without specific prior
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
26 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
27 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
28 * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
32 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
37 * @copyright 2004-2010 Ryan Parman, Geoffrey Sneddon, Ryan McCue
39 * @author Geoffrey Sneddon
41 * @link http://simplepie.org/ SimplePie
42 * @license http://www.opensource.org/licenses/bsd-license.php BSD License
43 * @todo phpDoc comments
46 abstract class SimplePie_Cache_DB
implements SimplePie_Cache_Base
48 protected static function prepare_simplepie_object_for_cache(&$data)
50 $items = $data->get_items();
51 $items_by_id = array();
55 foreach ($items as $item)
57 $items_by_id[$item->get_id()] = $item;
60 if (count($items_by_id) !== count($items))
62 $items_by_id = array();
63 foreach ($items as $item)
65 $items_by_id[$item->get_id(true)] = $item;
69 if (isset($data->data
['child'][SIMPLEPIE_NAMESPACE_ATOM_10
]['feed'][0]))
71 $channel =& $data->data
['child'][SIMPLEPIE_NAMESPACE_ATOM_10
]['feed'][0];
73 elseif (isset($data->data
['child'][SIMPLEPIE_NAMESPACE_ATOM_03
]['feed'][0]))
75 $channel =& $data->data
['child'][SIMPLEPIE_NAMESPACE_ATOM_03
]['feed'][0];
77 elseif (isset($data->data
['child'][SIMPLEPIE_NAMESPACE_RDF
]['RDF'][0]))
79 $channel =& $data->data
['child'][SIMPLEPIE_NAMESPACE_RDF
]['RDF'][0];
81 elseif (isset($data->data
['child'][SIMPLEPIE_NAMESPACE_RSS_20
]['rss'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_20
]['channel'][0]))
83 $channel =& $data->data
['child'][SIMPLEPIE_NAMESPACE_RSS_20
]['rss'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_20
]['channel'][0];
90 if ($channel !== null)
92 if (isset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_10
]['entry']))
94 unset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_10
]['entry']);
96 if (isset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_03
]['entry']))
98 unset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_03
]['entry']);
100 if (isset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_10
]['item']))
102 unset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_10
]['item']);
104 if (isset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_090
]['item']))
106 unset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_090
]['item']);
108 if (isset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_20
]['item']))
110 unset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_20
]['item']);
113 if (isset($data->data
['items']))
115 unset($data->data
['items']);
117 if (isset($data->data
['ordered_items']))
119 unset($data->data
['ordered_items']);
122 return array(serialize($data->data
), $items_by_id);