root / drupal7 / sites / all / libraries / simplepie / library / SimplePie / Cache / DB.php @ 41cc1b08
1 | 41cc1b08 | Assos Assos | <?php
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2 | /**
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3 | * SimplePie
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4 | *
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5 | * A PHP-Based RSS and Atom Feed Framework.
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6 | * Takes the hard work out of managing a complete RSS/Atom solution.
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7 | *
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8 | * Copyright (c) 2004-2012, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors
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9 | * All rights reserved.
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10 | *
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11 | * Redistribution and use in source and binary forms, with or without modification, are
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12 | * permitted provided that the following conditions are met:
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13 | *
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14 | * * Redistributions of source code must retain the above copyright notice, this list of
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15 | * conditions and the following disclaimer.
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16 | *
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17 | * * Redistributions in binary form must reproduce the above copyright notice, this list
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18 | * of conditions and the following disclaimer in the documentation and/or other materials
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19 | * provided with the distribution.
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20 | *
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21 | * * Neither the name of the SimplePie Team nor the names of its contributors may be used
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22 | * to endorse or promote products derived from this software without specific prior
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23 | * written permission.
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24 | *
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25 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
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26 | * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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27 | * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
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28 | * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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29 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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30 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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31 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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32 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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33 | * POSSIBILITY OF SUCH DAMAGE.
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34 | *
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35 | * @package SimplePie
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36 | * @version 1.3.1
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37 | * @copyright 2004-2012 Ryan Parman, Geoffrey Sneddon, Ryan McCue
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38 | * @author Ryan Parman
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39 | * @author Geoffrey Sneddon
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40 | * @author Ryan McCue
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41 | * @link http://simplepie.org/ SimplePie
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42 | * @license http://www.opensource.org/licenses/bsd-license.php BSD License
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43 | */
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44 | |||
45 | /**
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46 | * Base class for database-based caches
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47 | *
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48 | * @package SimplePie
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49 | * @subpackage Caching
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50 | */
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51 | abstract class SimplePie_Cache_DB implements SimplePie_Cache_Base |
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52 | { |
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53 | /**
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54 | * Helper for database conversion
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55 | *
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56 | * Converts a given {@see SimplePie} object into data to be stored
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57 | *
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58 | * @param SimplePie $data
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59 | * @return array First item is the serialized data for storage, second item is the unique ID for this item
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60 | */
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61 | protected static function prepare_simplepie_object_for_cache($data) |
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62 | { |
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63 | $items = $data->get_items(); |
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64 | $items_by_id = array(); |
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65 | |||
66 | if (!empty($items)) |
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67 | { |
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68 | foreach ($items as $item) |
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69 | { |
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70 | $items_by_id[$item->get_id()] = $item; |
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71 | } |
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72 | |||
73 | if (count($items_by_id) !== count($items)) |
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74 | { |
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75 | $items_by_id = array(); |
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76 | foreach ($items as $item) |
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77 | { |
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78 | $items_by_id[$item->get_id(true)] = $item; |
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79 | } |
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80 | } |
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81 | |||
82 | if (isset($data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0])) |
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83 | { |
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84 | $channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]; |
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85 | } |
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86 | elseif (isset($data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0])) |
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87 | { |
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88 | $channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]; |
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89 | } |
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90 | elseif (isset($data->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0])) |
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91 | { |
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92 | $channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]; |
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93 | } |
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94 | elseif (isset($data->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_20]['channel'][0])) |
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95 | { |
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96 | $channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_20]['channel'][0]; |
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97 | } |
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98 | else
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99 | { |
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100 | $channel = null; |
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101 | } |
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102 | |||
103 | if ($channel !== null) |
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104 | { |
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105 | if (isset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['entry'])) |
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106 | { |
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107 | unset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['entry']); |
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108 | } |
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109 | if (isset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['entry'])) |
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110 | { |
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111 | unset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['entry']); |
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112 | } |
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113 | if (isset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_10]['item'])) |
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114 | { |
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115 | unset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_10]['item']); |
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116 | } |
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117 | if (isset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_090]['item'])) |
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118 | { |
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119 | unset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_090]['item']); |
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120 | } |
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121 | if (isset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_20]['item'])) |
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122 | { |
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123 | unset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_20]['item']); |
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124 | } |
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125 | } |
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126 | if (isset($data->data['items'])) |
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127 | { |
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128 | unset($data->data['items']); |
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129 | } |
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130 | if (isset($data->data['ordered_items'])) |
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131 | { |
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132 | unset($data->data['ordered_items']); |
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133 | } |
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134 | } |
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135 | return array(serialize($data->data), $items_by_id); |
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136 | } |
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137 | } |