1 | <?php |
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2 | // +-----------------------------------------------------------------------+ |
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3 | // | functions_category.inc.php | |
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4 | // +-----------------------------------------------------------------------+ |
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5 | // | application : PhpWebGallery <http://phpwebgallery.net> | |
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6 | // | branch : BSF (Best So Far) | |
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7 | // +-----------------------------------------------------------------------+ |
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8 | // | file : $RCSfile$ |
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9 | // | last update : $Date: 2004-08-21 13:10:25 +0000 (Sat, 21 Aug 2004) $ |
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10 | // | last modifier : $Author: z0rglub $ |
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11 | // | revision : $Revision: 490 $ |
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12 | // +-----------------------------------------------------------------------+ |
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13 | // | This program is free software; you can redistribute it and/or modify | |
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14 | // | it under the terms of the GNU General Public License as published by | |
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15 | // | the Free Software Foundation | |
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16 | // | | |
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17 | // | This program is distributed in the hope that it will be useful, but | |
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18 | // | WITHOUT ANY WARRANTY; without even the implied warranty of | |
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19 | // | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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20 | // | General Public License for more details. | |
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21 | // | | |
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22 | // | You should have received a copy of the GNU General Public License | |
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23 | // | along with this program; if not, write to the Free Software | |
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24 | // | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
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25 | // | USA. | |
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26 | // +-----------------------------------------------------------------------+ |
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27 | |
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28 | /** |
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29 | * Provides functions to handle categories. |
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30 | * |
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31 | * |
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32 | */ |
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33 | |
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34 | /** |
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35 | * Is the category accessible to the connected user ? |
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36 | * |
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37 | * Note : if the user is not authorized to see this category, page creation |
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38 | * ends (exit command in this function) |
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39 | * |
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40 | * @param int category id to verify |
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41 | * @return void |
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42 | */ |
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43 | function check_restrictions( $category_id ) |
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44 | { |
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45 | global $user,$lang; |
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46 | |
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47 | if ( in_array( $category_id, $user['restrictions'] ) ) |
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48 | { |
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49 | echo '<div style="text-align:center;">'.$lang['access_forbiden'].'<br />'; |
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50 | echo '<a href="'.add_session_id( './category.php' ).'">'; |
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51 | echo $lang['thumbnails'].'</a></div>'; |
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52 | exit(); |
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53 | } |
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54 | } |
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55 | |
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56 | /** |
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57 | * Checks whether the argument is a right parameter category id |
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58 | * |
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59 | * The argument is a right parameter if corresponds to one of these : |
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60 | * |
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61 | * - is numeric and corresponds to a category in the database |
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62 | * - equals 'fav' (for favorites) |
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63 | * - equals 'search' (when the result of a search is displayed) |
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64 | * - equals 'most_visited' |
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65 | * - equals 'best_rated' |
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66 | * - equals 'recent_pics' |
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67 | * - equals 'recent_cats' |
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68 | * _ equals 'calendar' |
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69 | * |
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70 | * The function fills the global var $page['cat'] and returns nothing |
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71 | * |
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72 | * @param mixed category id or special category name |
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73 | * @return void |
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74 | */ |
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75 | function check_cat_id( $cat ) |
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76 | { |
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77 | global $page; |
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78 | |
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79 | unset( $page['cat'] ); |
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80 | if ( isset( $cat ) ) |
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81 | { |
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82 | if ( isset( $page['plain_structure'][$cat] ) ) |
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83 | { |
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84 | $page['cat'] = $cat; |
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85 | } |
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86 | else if ( is_numeric( $cat ) ) |
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87 | { |
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88 | $query = 'SELECT id'; |
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89 | $query.= ' FROM '.CATEGORIES_TABLE.' WHERE id = '.$cat.';'; |
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90 | $result = mysql_query( $query ); |
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91 | if ( mysql_num_rows( $result ) != 0 ) |
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92 | { |
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93 | $page['cat'] = $cat; |
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94 | } |
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95 | } |
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96 | if ( $cat == 'fav' |
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97 | or $cat == 'most_visited' |
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98 | or $cat == 'best_rated' |
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99 | or $cat == 'recent_pics' |
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100 | or $cat == 'recent_cats' |
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101 | or $cat == 'calendar' ) |
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102 | { |
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103 | $page['cat'] = $cat; |
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104 | } |
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105 | if ($cat == 'search' and isset($_GET['search'])) |
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106 | { |
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107 | $page['cat'] = $cat; |
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108 | } |
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109 | } |
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110 | } |
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111 | |
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112 | function get_user_plain_structure() |
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113 | { |
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114 | global $page,$user; |
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115 | |
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116 | $infos = array( 'name','id','date_last','nb_images','dir','id_uppercat', |
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117 | 'rank','site_id','uppercats'); |
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118 | |
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119 | $query = 'SELECT '.implode( ',', $infos ); |
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120 | $query.= ' FROM '.CATEGORIES_TABLE; |
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121 | $query.= ' WHERE 1 = 1'; // stupid but permit using AND after it ! |
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122 | if ( !$user['expand'] ) |
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123 | { |
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124 | $query.= ' AND (id_uppercat is NULL'; |
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125 | if ( count( $page['tab_expand'] ) > 0 ) |
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126 | { |
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127 | $query.= ' OR id_uppercat IN ('.implode(',',$page['tab_expand']).')'; |
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128 | } |
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129 | $query.= ')'; |
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130 | } |
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131 | if ( $user['forbidden_categories'] != '' ) |
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132 | { |
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133 | $query.= ' AND id NOT IN '; |
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134 | $query.= '('.$user['forbidden_categories'].')'; |
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135 | } |
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136 | $query.= ' ORDER BY id_uppercat ASC, rank ASC'; |
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137 | $query.= ';'; |
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138 | |
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139 | $plain_structure = array(); |
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140 | $result = mysql_query( $query ); |
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141 | while ( $row = mysql_fetch_array( $result ) ) |
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142 | { |
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143 | $category = array(); |
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144 | foreach ( $infos as $info ) { |
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145 | if ( $info == 'uc.date_last') |
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146 | { |
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147 | if ( empty( $row['date_last'] ) ) |
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148 | { |
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149 | $category['date_last'] = 0; |
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150 | } |
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151 | else |
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152 | { |
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153 | list($year,$month,$day) = explode( '-', $row['date_last'] ); |
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154 | $category['date_last'] = mktime(0,0,0,$month,$day,$year); |
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155 | } |
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156 | } |
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157 | else if ( isset( $row[$info] ) ) $category[$info] = $row[$info]; |
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158 | else $category[$info] = ''; |
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159 | } |
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160 | $plain_structure[$row['id']] = $category; |
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161 | } |
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162 | |
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163 | return $plain_structure; |
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164 | } |
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165 | |
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166 | function create_user_structure( $id_uppercat ) |
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167 | { |
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168 | global $page; |
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169 | |
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170 | if ( !isset( $page['plain_structure'] ) ) |
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171 | $page['plain_structure'] = get_user_plain_structure(); |
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172 | |
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173 | $structure = array(); |
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174 | $ids = get_user_subcat_ids( $id_uppercat ); |
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175 | foreach ( $ids as $id ) { |
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176 | $category = $page['plain_structure'][$id]; |
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177 | $category['subcats'] = create_user_structure( $id ); |
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178 | array_push( $structure, $category ); |
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179 | } |
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180 | return $structure; |
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181 | } |
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182 | |
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183 | function get_user_subcat_ids( $id_uppercat ) |
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184 | { |
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185 | global $page; |
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186 | |
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187 | $ids = array(); |
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188 | foreach ( $page['plain_structure'] as $id => $category ) { |
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189 | if ( $category['id_uppercat'] == $id_uppercat ) array_push( $ids, $id ); |
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190 | else if ( count( $ids ) > 0 ) return $ids; |
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191 | } |
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192 | return $ids; |
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193 | } |
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194 | |
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195 | // update_structure updates or add informations about each node of the |
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196 | // structure : |
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197 | // |
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198 | // 1. should the category be expanded in the menu ? |
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199 | // If the category has to be expanded (ie its id is in the |
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200 | // $page['tab_expand'] or all the categories must be expanded by default), |
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201 | // $category['expanded'] is set to true. |
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202 | // |
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203 | // 2. associated expand string |
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204 | // in the menu, there is a expand string (used in the URL) to tell which |
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205 | // categories must be expanded in the menu if this category is chosen |
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206 | function update_structure( $categories ) |
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207 | { |
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208 | global $page, $user; |
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209 | |
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210 | $updated_categories = array(); |
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211 | |
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212 | foreach ( $categories as $category ) { |
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213 | // update the "expanded" key |
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214 | if ( $user['expand'] |
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215 | or in_array( $category['id'], $page['tab_expand'] ) ) |
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216 | { |
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217 | $category['expanded'] = true; |
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218 | } |
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219 | else |
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220 | { |
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221 | $category['expanded'] = false; |
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222 | } |
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223 | // recursive call |
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224 | $category['subcats'] = update_structure( $category['subcats'] ); |
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225 | // adding the updated category |
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226 | array_push( $updated_categories, $category ); |
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227 | } |
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228 | |
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229 | return $updated_categories; |
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230 | } |
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231 | |
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232 | // count_images returns the number of pictures contained in the given |
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233 | // category represented by an array, in this array, we have (among other |
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234 | // things) : |
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235 | // $category['nb_images'] -> number of pictures in this category |
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236 | // $category['subcats'] -> array of sub-categories |
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237 | // count_images goes to the deepest sub-category to find the total number of |
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238 | // pictures contained in the given given category |
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239 | function count_images( $categories ) |
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240 | { |
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241 | return count_user_total_images(); |
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242 | $total = 0; |
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243 | foreach ( $categories as $category ) { |
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244 | $total+= $category['nb_images']; |
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245 | $total+= count_images( $category['subcats'] ); |
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246 | } |
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247 | return $total; |
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248 | } |
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249 | |
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250 | function count_user_total_images() |
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251 | { |
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252 | global $user; |
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253 | |
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254 | $query = 'SELECT SUM(nb_images) AS total'; |
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255 | $query.= ' FROM '.CATEGORIES_TABLE; |
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256 | if ( count( $user['restrictions'] ) > 0 ) |
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257 | $query.= ' WHERE id NOT IN ('.$user['forbidden_categories'].')'; |
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258 | $query.= ';'; |
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259 | |
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260 | // $query = ' |
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261 | // SELECT COUNT(DISTINCT(image_id)) as total |
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262 | // FROM '.PREFIX_TABLE.'image_category'; |
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263 | // if (count($user['restrictions']) > 0) |
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264 | // { |
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265 | // $query.= ' |
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266 | // WHERE category_id NOT IN ('.$user['forbidden_categories'].')'; |
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267 | // } |
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268 | // $query = ' |
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269 | // ;'; |
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270 | |
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271 | $row = mysql_fetch_array( mysql_query( $query ) ); |
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272 | |
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273 | if ( !isset( $row['total'] ) ) $row['total'] = 0; |
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274 | |
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275 | return $row['total']; |
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276 | } |
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277 | |
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278 | /** |
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279 | * Retrieve informations about a category in the database |
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280 | * |
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281 | * Returns an array with following keys : |
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282 | * |
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283 | * - comment |
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284 | * - dir : directory, might be empty for virtual categories |
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285 | * - name : an array with indexes from 0 (lowest cat name) to n (most |
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286 | * uppercat name findable) |
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287 | * - nb_images |
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288 | * - id_uppercat |
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289 | * - site_id |
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290 | * - |
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291 | * |
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292 | * @param int category id |
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293 | * @return array |
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294 | */ |
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295 | function get_cat_info( $id ) |
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296 | { |
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297 | $infos = array( 'nb_images','id_uppercat','comment','site_id','galleries_url' |
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298 | ,'dir','date_last','uploadable','status','visible' |
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299 | ,'representative_picture_id','uppercats' ); |
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300 | |
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301 | $query = 'SELECT '.implode( ',', $infos ); |
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302 | $query.= ' FROM '.CATEGORIES_TABLE.' AS a'; |
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303 | $query.= ', '.SITES_TABLE.' AS b'; |
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304 | $query.= ' WHERE a.id = '.$id; |
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305 | $query.= ' AND a.site_id = b.id'; |
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306 | $query.= ';'; |
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307 | $row = mysql_fetch_array( mysql_query( $query ) ); |
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308 | |
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309 | $cat = array(); |
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310 | // affectation of each field of the table "config" to an information of the |
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311 | // array $cat. |
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312 | foreach ( $infos as $info ) { |
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313 | if ( isset( $row[$info] ) ) $cat[$info] = $row[$info]; |
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314 | else $cat[$info] = ''; |
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315 | // If the field is true or false, the variable is transformed into a |
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316 | // boolean value. |
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317 | if ( $cat[$info] == 'true' or $cat[$info] == 'false' ) |
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318 | { |
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319 | $cat[$info] = get_boolean( $cat[$info] ); |
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320 | } |
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321 | } |
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322 | $cat['comment'] = nl2br( $cat['comment'] ); |
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323 | |
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324 | $cat['name'] = array(); |
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325 | |
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326 | $query = 'SELECT name,id FROM '.CATEGORIES_TABLE; |
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327 | $query.= ' WHERE id IN ('.$cat['uppercats'].')'; |
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328 | $query.= ' ORDER BY id ASC'; |
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329 | $query.= ';'; |
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330 | $result = mysql_query( $query ); |
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331 | while( $row = mysql_fetch_array( $result ) ) |
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332 | { |
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333 | $cat['name'][$row['id']] = $row['name']; |
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334 | } |
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335 | |
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336 | return $cat; |
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337 | } |
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338 | |
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339 | // get_complete_dir returns the concatenation of get_site_url and |
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340 | // get_local_dir |
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341 | // Example : "pets > rex > 1_year_old" is on the the same site as the |
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342 | // PhpWebGallery files and this category has 22 for identifier |
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343 | // get_complete_dir(22) returns "./galleries/pets/rex/1_year_old/" |
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344 | function get_complete_dir( $category_id ) |
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345 | { |
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346 | return get_site_url( $category_id ).get_local_dir( $category_id ); |
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347 | } |
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348 | |
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349 | // get_local_dir returns an array with complete path without the site url |
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350 | // Example : "pets > rex > 1_year_old" is on the the same site as the |
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351 | // PhpWebGallery files and this category has 22 for identifier |
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352 | // get_local_dir(22) returns "pets/rex/1_year_old/" |
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353 | function get_local_dir( $category_id ) |
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354 | { |
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355 | global $page; |
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356 | |
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357 | $uppercats = ''; |
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358 | $local_dir = ''; |
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359 | |
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360 | if ( isset( $page['plain_structure'][$category_id]['uppercats'] ) ) |
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361 | { |
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362 | $uppercats = $page['plain_structure'][$category_id]['uppercats']; |
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363 | } |
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364 | else |
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365 | { |
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366 | $query = 'SELECT uppercats'; |
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367 | $query.= ' FROM '.CATEGORIES_TABLE.' WHERE id = '.$category_id; |
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368 | $query.= ';'; |
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369 | $row = mysql_fetch_array( mysql_query( $query ) ); |
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370 | $uppercats = $row['uppercats']; |
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371 | } |
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372 | |
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373 | $upper_array = explode( ',', $uppercats ); |
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374 | |
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375 | $database_dirs = array(); |
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376 | $query = 'SELECT id,dir'; |
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377 | $query.= ' FROM '.CATEGORIES_TABLE.' WHERE id IN ('.$uppercats.')'; |
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378 | $query.= ';'; |
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379 | $result = mysql_query( $query ); |
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380 | while( $row = mysql_fetch_array( $result ) ) |
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381 | { |
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382 | $database_dirs[$row['id']] = $row['dir']; |
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383 | } |
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384 | foreach ( $upper_array as $id ) { |
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385 | $local_dir.= $database_dirs[$id].'/'; |
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386 | } |
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387 | |
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388 | return $local_dir; |
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389 | } |
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390 | |
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391 | // retrieving the site url : "http://domain.com/gallery/" or |
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392 | // simply "./galleries/" |
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393 | function get_site_url( $category_id ) |
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394 | { |
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395 | global $page; |
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396 | |
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397 | $query = 'SELECT galleries_url'; |
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398 | $query.= ' FROM '.SITES_TABLE.' AS s,'.CATEGORIES_TABLE.' AS c'; |
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399 | $query.= ' WHERE s.id = c.site_id'; |
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400 | $query.= ' AND c.id = '.$category_id; |
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401 | $query.= ';'; |
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402 | $row = mysql_fetch_array( mysql_query( $query ) ); |
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403 | return $row['galleries_url']; |
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404 | } |
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405 | |
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406 | // initialize_category initializes ;-) the variables in relation |
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407 | // with category : |
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408 | // 1. calculation of the number of pictures in the category |
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409 | // 2. determination of the SQL query part to ask to find the right category |
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410 | // $page['where'] is not the same if we are in |
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411 | // - simple category |
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412 | // - search result |
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413 | // - favorites displaying |
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414 | // - most visited pictures |
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415 | // - best rated pictures |
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416 | // - recent pictures |
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417 | // 3. determination of the title of the page |
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418 | // 4. creation of the navigation bar |
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419 | function initialize_category( $calling_page = 'category' ) |
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420 | { |
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421 | pwg_debug( 'start initialize_category' ); |
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422 | global $page,$lang,$user,$conf; |
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423 | |
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424 | if ( isset( $page['cat'] ) ) |
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425 | { |
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426 | // $page['nb_image_page'] is the number of picture to display on this page |
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427 | // By default, it is the same as the $user['nb_image_page'] |
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428 | $page['nb_image_page'] = $user['nb_image_page']; |
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429 | // $url is used to create the navigation bar |
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430 | $url = './category.php?cat='.$page['cat']; |
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431 | if ( isset($page['expand']) ) $url.= '&expand='.$page['expand']; |
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432 | // simple category |
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433 | if ( is_numeric( $page['cat'] ) ) |
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434 | { |
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435 | $result = get_cat_info( $page['cat'] ); |
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436 | $page['comment'] = $result['comment']; |
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437 | $page['cat_dir'] = $result['dir']; |
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438 | $page['cat_name'] = $result['name']; |
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439 | $page['cat_nb_images'] = $result['nb_images']; |
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440 | $page['cat_site_id'] = $result['site_id']; |
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441 | $page['cat_uploadable'] = $result['uploadable']; |
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442 | $page['uppercats'] = $result['uppercats']; |
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443 | $page['title'] = get_cat_display_name( $page['cat_name'],' - ','',false); |
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444 | $page['where'] = ' WHERE category_id = '.$page['cat']; |
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445 | } |
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446 | else |
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447 | { |
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448 | if ( $page['cat'] == 'search' |
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449 | or $page['cat'] == 'most_visited' |
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450 | or $page['cat'] == 'recent_pics' |
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451 | or $page['cat'] == 'recent_cats' |
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452 | or $page['cat'] == 'best_rated' |
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453 | or $page['cat'] == 'calendar' ) |
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454 | { |
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455 | // we must not show pictures of a forbidden category |
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456 | if ( $user['forbidden_categories'] != '' ) |
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457 | { |
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458 | $forbidden = ' category_id NOT IN '; |
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459 | $forbidden.= '('.$user['forbidden_categories'].')'; |
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460 | } |
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461 | } |
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462 | // search result |
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463 | if ( $page['cat'] == 'search' ) |
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464 | { |
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465 | // analyze search string given in URL (created in search.php) |
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466 | $tokens = explode('|', $_GET['search']); |
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467 | |
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468 | if (isset($tokens[1]) and $tokens[1] == 'AND') |
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469 | { |
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470 | $search['mode'] = 'AND'; |
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471 | } |
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472 | else |
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473 | { |
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474 | $search['mode'] = 'OR'; |
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475 | } |
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476 | |
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477 | $search_tokens = explode(';', $tokens[0]); |
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478 | foreach ($search_tokens as $search_token) |
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479 | { |
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480 | $tokens = explode(':', $search_token); |
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481 | $field_name = $tokens[0]; |
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482 | $field_content = $tokens[1]; |
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483 | |
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484 | $tokens = explode('~', $tokens[1]); |
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485 | if (isset($tokens[1])) |
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486 | { |
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487 | $search['fields'][$field_name]['mode'] = $tokens[1]; |
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488 | } |
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489 | else |
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490 | { |
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491 | $search['fields'][$field_name]['mode'] = ''; |
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492 | } |
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493 | |
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494 | $search['fields'][$field_name]['words'] = array(); |
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495 | $tokens = explode(',', $tokens[0]); |
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496 | foreach ($tokens as $token) |
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497 | { |
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498 | array_push($search['fields'][$field_name]['words'], $token); |
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499 | } |
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500 | } |
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501 | |
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502 | $page['title'] = $lang['search_result']; |
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503 | if ( $calling_page == 'picture' ) |
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504 | { |
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505 | $page['title'].= ' : <span style="font-style:italic;">'; |
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506 | $page['title'].= $_GET['search']."</span>"; |
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507 | } |
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508 | |
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509 | // SQL where clauses are stored in $clauses array during query |
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510 | // construction |
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511 | $clauses = array(); |
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512 | |
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513 | $textfields = array('file', 'name', 'comment', 'keywords', 'author'); |
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514 | foreach ($textfields as $textfield) |
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515 | { |
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516 | if (isset($search['fields'][$textfield])) |
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517 | { |
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518 | $local_clauses = array(); |
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519 | foreach ($search['fields'][$textfield]['words'] as $word) |
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520 | { |
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521 | array_push($local_clauses, $textfield." LIKE '%".$word."%'"); |
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522 | } |
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523 | // adds brackets around where clauses |
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524 | array_walk($local_clauses,create_function('&$s','$s="(".$s.")";')); |
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525 | array_push($clauses, |
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526 | implode(' '.$search['fields'][$textfield]['mode'].' ', |
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527 | $local_clauses)); |
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528 | } |
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529 | } |
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530 | |
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531 | $datefields = array('date_available', 'date_creation'); |
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532 | foreach ($datefields as $datefield) |
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533 | { |
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534 | $key = $datefield; |
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535 | if (isset($search['fields'][$key])) |
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536 | { |
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537 | $local_clause = $datefield." = '"; |
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538 | $local_clause.= str_replace('.', '-', |
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539 | $search['fields'][$key]['words'][0]); |
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540 | $local_clause.= "'"; |
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541 | array_push($clauses, $local_clause); |
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542 | } |
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543 | |
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544 | foreach (array('after','before') as $suffix) |
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545 | { |
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546 | $key = $datefield.'-'.$suffix; |
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547 | if (isset($search['fields'][$key])) |
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548 | { |
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549 | $local_clause = $datefield; |
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550 | if ($suffix == 'after') |
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551 | { |
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552 | $local_clause.= ' >'; |
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553 | } |
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554 | else |
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555 | { |
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556 | $local_clause.= ' <'; |
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557 | } |
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558 | if (isset($search['fields'][$key]['mode']) |
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559 | and $search['fields'][$key]['mode'] == 'inc') |
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560 | { |
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561 | $local_clause.= '='; |
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562 | } |
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563 | $local_clause.= " '"; |
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564 | $local_clause.= str_replace('.', '-', |
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565 | $search['fields'][$key]['words'][0]); |
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566 | $local_clause.= "'"; |
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567 | array_push($clauses, $local_clause); |
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568 | } |
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569 | } |
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570 | } |
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571 | |
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572 | if (isset($search['fields']['cat'])) |
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573 | { |
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574 | $local_clause = 'category_id IN ('; |
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575 | $local_clause.= implode(',',$search['fields']['cat']['words']); |
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576 | $local_clause.= ')'; |
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577 | array_push($clauses, $local_clause); |
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578 | } |
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579 | |
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580 | // adds brackets around where clauses |
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581 | array_walk($clauses, create_function('&$s', '$s = "(".$s.")";')); |
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582 | $page['where'] = 'WHERE '.implode(' '.$search['mode'].' ', $clauses); |
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583 | if ( isset( $forbidden ) ) $page['where'].= ' AND '.$forbidden; |
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584 | |
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585 | $query = ' |
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586 | SELECT COUNT(DISTINCT(id)) AS nb_total_images |
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587 | FROM '.IMAGES_TABLE.' |
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588 | INNER JOIN '.IMAGE_CATEGORY_TABLE.' AS ic ON id = ic.image_id |
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589 | '.$page['where'].' |
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590 | ;'; |
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591 | $url.= '&search='.$_GET['search']; |
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592 | } |
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593 | // favorites displaying |
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594 | else if ( $page['cat'] == 'fav' ) |
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595 | { |
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596 | $page['title'] = $lang['favorites']; |
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597 | |
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598 | $page['where'] = ', '.FAVORITES_TABLE.' AS fav'; |
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599 | $page['where'].= ' WHERE user_id = '.$user['id']; |
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600 | $page['where'].= ' AND fav.image_id = id'; |
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601 | |
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602 | $query = 'SELECT COUNT(*) AS nb_total_images'; |
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603 | $query.= ' FROM '.FAVORITES_TABLE; |
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604 | $query.= ' WHERE user_id = '.$user['id']; |
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605 | $query.= ';'; |
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606 | } |
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607 | // pictures within the short period |
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608 | else if ( $page['cat'] == 'recent_pics' ) |
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609 | { |
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610 | $page['title'] = $lang['recent_pics_cat_title']; |
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611 | // We must find the date corresponding to : |
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612 | // today - $conf['periode_courte'] |
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613 | $date = time() - 60*60*24*$user['recent_period']; |
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614 | $page['where'] = " WHERE date_available > '"; |
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615 | $page['where'].= date( 'Y-m-d', $date )."'"; |
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616 | if ( isset( $forbidden ) ) $page['where'].= ' AND '.$forbidden; |
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617 | |
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618 | $query = 'SELECT COUNT(DISTINCT(id)) AS nb_total_images'; |
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619 | $query.= ' FROM '.IMAGES_TABLE; |
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620 | $query.= ' INNER JOIN '.PREFIX_TABLE.'image_category AS ic'; |
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621 | $query.= ' ON id = ic.image_id'; |
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622 | $query.= $page['where']; |
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623 | $query.= ';'; |
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624 | } |
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625 | // categories containing recent pictures |
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626 | else if ( $page['cat'] == 'recent_cats' ) |
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627 | { |
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628 | $page['title'] = $lang['recent_cats_cat_title']; |
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629 | $page['cat_nb_images'] = 0; |
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630 | } |
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631 | // most visited pictures |
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632 | else if ( $page['cat'] == 'most_visited' ) |
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633 | { |
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634 | $page['title'] = $conf['top_number'].' '.$lang['most_visited_cat']; |
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635 | |
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636 | if ( isset( $forbidden ) ) $page['where'] = ' WHERE '.$forbidden; |
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637 | else $page['where'] = ''; |
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638 | $conf['order_by'] = ' ORDER BY hit DESC, file ASC'; |
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639 | $page['cat_nb_images'] = $conf['top_number']; |
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640 | if ( isset( $page['start'] ) |
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641 | and ($page['start']+$user['nb_image_page']>=$conf['top_number'])) |
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642 | { |
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643 | $page['nb_image_page'] = $conf['top_number'] - $page['start']; |
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644 | } |
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645 | } |
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646 | else if ( $page['cat'] == 'calendar' ) |
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647 | { |
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648 | $page['cat_nb_images'] = 0; |
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649 | $page['title'] = $lang['calendar']; |
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650 | if (isset($_GET['year']) |
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651 | and preg_match('/^\d+$/', $_GET['year'])) |
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652 | { |
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653 | $page['calendar_year'] = (int)$_GET['year']; |
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654 | } |
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655 | if (isset($_GET['month']) |
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656 | and preg_match('/^(\d+)\.(\d{2})$/', $_GET['month'], $matches)) |
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657 | { |
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658 | $page['calendar_year'] = (int)$matches[1]; |
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659 | $page['calendar_month'] = (int)$matches[2]; |
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660 | } |
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661 | if (isset($_GET['day']) |
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662 | and preg_match('/^(\d+)\.(\d{2})\.(\d{2})$/', |
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663 | $_GET['day'], |
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664 | $matches)) |
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665 | { |
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666 | $page['calendar_year'] = (int)$matches[1]; |
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667 | $page['calendar_month'] = (int)$matches[2]; |
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668 | $page['calendar_day'] = (int)$matches[3]; |
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669 | } |
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670 | if (isset($page['calendar_year'])) |
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671 | { |
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672 | $page['title'] .= ' ('; |
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673 | if (isset($page['calendar_day'])) |
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674 | { |
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675 | $unixdate = mktime(0,0,0, |
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676 | $page['calendar_month'], |
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677 | $page['calendar_day'], |
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678 | $page['calendar_year']); |
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679 | $page['title'].= $lang['day'][date("w", $unixdate)]; |
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680 | $page['title'].= ' '.$page['calendar_day'].', '; |
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681 | } |
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682 | if (isset($page['calendar_month'])) |
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683 | { |
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684 | $page['title'] .= $lang['month'][$page['calendar_month']].' '; |
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685 | } |
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686 | $page['title'] .= $page['calendar_year']; |
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687 | $page['title'] .= ')'; |
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688 | } |
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689 | if (isset($forbidden)) |
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690 | { |
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691 | $page['where'] = 'WHERE '.$forbidden; |
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692 | } |
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693 | else |
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694 | { |
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695 | $page['where'] = 'WHERE 1=1'; |
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696 | } |
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697 | } |
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698 | |
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699 | if (isset($query)) |
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700 | { |
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701 | $result = mysql_query( $query ); |
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702 | $row = mysql_fetch_array( $result ); |
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703 | $page['cat_nb_images'] = $row['nb_total_images']; |
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704 | } |
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705 | } |
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706 | if ( $calling_page == 'category' ) |
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707 | { |
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708 | $page['navigation_bar'] = |
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709 | create_navigation_bar( $url, $page['cat_nb_images'], $page['start'], |
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710 | $user['nb_image_page'], 'back' ); |
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711 | } |
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712 | } |
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713 | else |
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714 | { |
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715 | $page['title'] = $lang['diapo_default_page_title']; |
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716 | } |
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717 | pwg_debug( 'end initialize_category' ); |
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718 | } |
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719 | |
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720 | // get_non_empty_subcat_ids returns an array with sub-categories id |
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721 | // associated with their first non empty category id. |
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722 | // |
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723 | // example : |
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724 | // |
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725 | // - catname [cat_id] |
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726 | // - cat1 [1] -> given uppercat |
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727 | // - cat1.1 [12] (empty) |
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728 | // - cat1.1.1 [5] (empty) |
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729 | // - cat1.1.2 [6] |
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730 | // - cat1.2 [3] |
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731 | // - cat1.3 [4] |
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732 | // |
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733 | // get_non_empty_sub_cat_ids will return : |
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734 | // $ids[12] = 6; |
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735 | // $ids[3] = 3; |
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736 | // $ids[4] = 4; |
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737 | function get_non_empty_subcat_ids( $id_uppercat ) |
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738 | { |
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739 | global $user; |
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740 | |
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741 | $ids = array(); |
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742 | |
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743 | $query = 'SELECT id,nb_images'; |
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744 | $query.= ' FROM '.CATEGORIES_TABLE; |
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745 | $query.= ' WHERE id_uppercat '; |
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746 | if ( !is_numeric( $id_uppercat ) ) $query.= 'is NULL'; |
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747 | else $query.= '= '.$id_uppercat; |
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748 | // we must not show pictures of a forbidden category |
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749 | if ( $user['forbidden_categories'] != '' ) |
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750 | { |
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751 | $query.= ' AND id NOT IN ('.$user['forbidden_categories'].')'; |
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752 | } |
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753 | $query.= ' ORDER BY rank'; |
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754 | $query.= ';'; |
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755 | |
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756 | $result = mysql_query( $query ); |
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757 | while ( $row = mysql_fetch_array( $result ) ) |
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758 | { |
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759 | // only categories with findable picture in any of its subcats is |
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760 | // represented. |
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761 | if ( ( $row['nb_images'] != 0 and $non_empty_cat = $row['id'] ) |
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762 | or $non_empty_cat = get_first_non_empty_cat_id( $row['id'] ) ) |
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763 | { |
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764 | $ids[$row['id']] = $non_empty_cat; |
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765 | } |
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766 | } |
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767 | return $ids; |
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768 | } |
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769 | |
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770 | // get_first_non_empty_cat_id returns the id of the first non empty |
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771 | // sub-category to the given uppercat. If no picture is found in any |
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772 | // subcategory, false is returned. |
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773 | function get_first_non_empty_cat_id( $id_uppercat ) |
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774 | { |
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775 | global $user; |
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776 | |
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777 | $query = 'SELECT id,nb_images'; |
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778 | $query.= ' FROM '.CATEGORIES_TABLE; |
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779 | $query.= ' WHERE id_uppercat = '.$id_uppercat; |
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780 | // we must not show pictures of a forbidden category |
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781 | if ( $user['forbidden_categories'] != '' ) |
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782 | { |
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783 | $query.= ' AND id NOT IN ('.$user['forbidden_categories'].')'; |
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784 | } |
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785 | $query.= ' ORDER BY RAND()'; |
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786 | $query.= ';'; |
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787 | $result = mysql_query( $query ); |
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788 | while ( $row = mysql_fetch_array( $result ) ) |
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789 | { |
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790 | if ( $row['nb_images'] > 0 ) |
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791 | { |
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792 | return $row['id']; |
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793 | } |
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794 | } |
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795 | $result = mysql_query( $query ); |
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796 | while ( $row = mysql_fetch_array( $result ) ) |
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797 | { |
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798 | // recursive call |
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799 | if ( $subcat = get_first_non_empty_cat_id( $row['id'] ) ) |
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800 | { |
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801 | return $subcat; |
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802 | } |
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803 | } |
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804 | return false; |
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805 | } |
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806 | ?> |
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