1 | <?php |
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2 | // +-----------------------------------------------------------------------+ |
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3 | // | PhpWebGallery - a PHP based picture gallery | |
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4 | // | Copyright (C) 2006-2007 PhpWebGallery Team - http://phpwebgallery.net | |
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5 | // +-----------------------------------------------------------------------+ |
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6 | // | branch : BSF (Best So Far) |
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7 | // | file : $Id: filter.inc.php 1651 2006-12-13 00:05:16Z rub $ |
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8 | // | last update : $Date: 2006-12-13 01:05:16 +0100 (mer., 13 déc. 2006) $ |
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9 | // | last modifier : $Author: rub $ |
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10 | // | revision : $Revision: 1651 $ |
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11 | // +-----------------------------------------------------------------------+ |
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12 | // | This program is free software; you can redistribute it and/or modify | |
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13 | // | it under the terms of the GNU General Public License as published by | |
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14 | // | the Free Software Foundation | |
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15 | // | | |
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16 | // | This program is distributed in the hope that it will be useful, but | |
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17 | // | WITHOUT ANY WARRANTY; without even the implied warranty of | |
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18 | // | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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19 | // | General Public License for more details. | |
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20 | // | | |
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21 | // | You should have received a copy of the GNU General Public License | |
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22 | // | along with this program; if not, write to the Free Software | |
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23 | // | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
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24 | // | USA. | |
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25 | // +-----------------------------------------------------------------------+ |
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26 | |
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27 | // global variable for filter |
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28 | $filter = array(); |
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29 | |
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30 | // $filter['enabled']: Filter is enabled |
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31 | // $filter['categories']: Computed data of filtered categories |
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32 | // $filter['visible_categories']: List of visible categories (count(visible) < count(forbidden) more often) |
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33 | // $filter['visible_images']: List of visible images |
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34 | |
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35 | |
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36 | $filter['enabled'] = |
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37 | (in_array(basename($_SERVER['SCRIPT_FILENAME']), $conf['filter_pages'])) and |
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38 | ( |
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39 | (isset($_GET['filter']) and ($_GET['filter'] == 'start')) or |
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40 | pwg_get_session_var('filter_enabled', false) |
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41 | ); |
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42 | |
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43 | if (in_array(basename($_SERVER['SCRIPT_FILENAME']), $conf['filter_pages'])) |
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44 | { |
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45 | if (isset($_GET['filter'])) |
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46 | { |
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47 | $filter['enabled'] = ($_GET['filter'] == 'start'); |
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48 | } |
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49 | else |
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50 | { |
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51 | $filter['enabled'] = pwg_get_session_var('filter_enabled', false); |
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52 | } |
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53 | } |
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54 | else |
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55 | { |
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56 | $filter['enabled'] = false; |
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57 | } |
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58 | |
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59 | if ($filter['enabled']) |
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60 | { |
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61 | if ( |
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62 | // New filter |
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63 | !pwg_get_session_var('filter_enabled', false) or |
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64 | // Cache data updated |
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65 | $user['need_update_done'] or |
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66 | // Date, period, user are changed |
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67 | (pwg_get_session_var('filter_check_key', '') != get_filter_check_key()) |
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68 | ) |
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69 | { |
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70 | // Need to compute dats |
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71 | $filter['check_key'] = get_filter_check_key(); |
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72 | $filter['categories'] = get_computed_categories($user['id'], $user['forbidden_categories'], true, $user['recent_period']); |
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73 | |
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74 | $filter['visible_categories'] = implode(',', array_keys($filter['categories'])); |
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75 | if (empty($filter['visible_categories'])) |
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76 | { |
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77 | // Must be not empty |
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78 | $filter['visible_categories'] = -1; |
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79 | } |
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80 | |
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81 | $query =' |
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82 | SELECT |
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83 | distinct image_id |
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84 | FROM '. |
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85 | IMAGE_CATEGORY_TABLE.' INNER JOIN '.IMAGES_TABLE.' ON image_id = id |
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86 | WHERE '; |
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87 | if (!empty($filter['visible_categories'])) |
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88 | { |
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89 | $query.= ' |
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90 | category_id IN ('.$filter['visible_categories'].') and'; |
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91 | } |
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92 | $query.= ' |
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93 | date_available > SUBDATE( |
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94 | CURRENT_DATE,INTERVAL '.$user['recent_period'].' DAY)'; |
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95 | |
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96 | $filter['visible_images'] = implode(',', array_from_query($query, 'image_id')); |
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97 | |
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98 | if (empty($filter['visible_images'])) |
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99 | { |
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100 | // Must be not empty |
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101 | $filter['visible_images'] = -1; |
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102 | } |
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103 | |
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104 | } |
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105 | else |
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106 | { |
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107 | // Read only data |
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108 | $filter['check_key'] = pwg_get_session_var('filter_check_key', ''); |
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109 | $filter['categories'] = unserialize(pwg_get_session_var('filter_categories', serialize(array()))); |
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110 | $filter['visible_categories'] = pwg_get_session_var('filter_visible_categories', ''); |
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111 | $filter['visible_images'] = pwg_get_session_var('filter_visible_images', ''); |
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112 | } |
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113 | |
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114 | $header_notes[] = l10n_dec('note_filter_day', 'note_filter_days', $user['recent_period']); |
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115 | } |
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116 | else |
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117 | { |
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118 | $filter['check_key'] = ''; |
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119 | $filter['categories'] = array(); |
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120 | $filter['visible_categories'] = ''; |
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121 | $filter['visible_images'] = ''; |
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122 | } |
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123 | |
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124 | pwg_set_session_var('filter_enabled', $filter['enabled']); |
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125 | pwg_set_session_var('filter_check_key', $filter['check_key']); |
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126 | pwg_set_session_var('filter_categories', serialize($filter['categories'])); |
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127 | pwg_set_session_var('filter_visible_categories', $filter['visible_categories']); |
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128 | pwg_set_session_var('filter_visible_images', $filter['visible_images']); |
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129 | |
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130 | ?> |
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