| // | branch : BSF (Best So Far) | // +-----------------------------------------------------------------------+ // | file : $RCSfile$ // | last update : $Date$ // | last modifier : $Author$ // | revision : $Revision$ // +-----------------------------------------------------------------------+ // | This program is free software; you can redistribute it and/or modify | // | it under the terms of the GNU General Public License as published by | // | the Free Software Foundation | // | | // | This program is distributed in the hope that it will be useful, but | // | WITHOUT ANY WARRANTY; without even the implied warranty of | // | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | // | General Public License for more details. | // | | // | You should have received a copy of the GNU General Public License | // | along with this program; if not, write to the Free Software | // | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, | // | USA. | // +-----------------------------------------------------------------------+ /** * Provides functions to handle categories. * * */ /** * Is the category accessible to the connected user ? * * Note : if the user is not authorized to see this category, page creation * ends (exit command in this function) * * @param int category id to verify * @return void */ function check_restrictions( $category_id ) { global $user,$lang; if ( in_array( $category_id, $user['restrictions'] ) ) { echo '
'.$lang['access_forbiden'].'
'; echo ''; echo $lang['thumbnails'].'
'; exit(); } } /** * Checks whether the argument is a right parameter category id * * The argument is a right parameter if corresponds to one of these : * * - is numeric and corresponds to a category in the database * - equals 'fav' (for favorites) * - equals 'search' (when the result of a search is displayed) * - equals 'most_visited' * - equals 'best_rated' * - equals 'recent_pics' * - equals 'recent_cats' * _ equals 'calendar' * * The function fills the global var $page['cat'] and returns nothing * * @param mixed category id or special category name * @return void */ function check_cat_id( $cat ) { global $page; unset( $page['cat'] ); if ( isset( $cat ) ) { if ( isset( $page['plain_structure'][$cat] ) ) { $page['cat'] = $cat; } else if ( is_numeric( $cat ) ) { $query = 'SELECT id'; $query.= ' FROM '.CATEGORIES_TABLE.' WHERE id = '.$cat.';'; $result = mysql_query( $query ); if ( mysql_num_rows( $result ) != 0 ) { $page['cat'] = $cat; } } if ( $cat == 'fav' or $cat == 'search' or $cat == 'most_visited' or $cat == 'best_rated' or $cat == 'recent_pics' or $cat == 'recent_cats' or $cat == 'calendar' ) { $page['cat'] = $cat; } } } function get_user_plain_structure() { global $page,$user; $infos = array( 'name','id','date_last','nb_images','dir','id_uppercat', 'rank','site_id','uppercats'); $query = 'SELECT '.implode( ',', $infos ); $query.= ' FROM '.CATEGORIES_TABLE; $query.= ' WHERE 1 = 1'; // stupid but permit using AND after it ! if ( !$user['expand'] ) { $query.= ' AND (id_uppercat is NULL'; if ( count( $page['tab_expand'] ) > 0 ) { $query.= ' OR id_uppercat IN ('.implode(',',$page['tab_expand']).')'; } $query.= ')'; } if ( $user['forbidden_categories'] != '' ) { $query.= ' AND id NOT IN '; $query.= '('.$user['forbidden_categories'].')'; } $query.= ' ORDER BY id_uppercat ASC, rank ASC'; $query.= ';'; $plain_structure = array(); $result = mysql_query( $query ); while ( $row = mysql_fetch_array( $result ) ) { $category = array(); foreach ( $infos as $info ) { if ( $info == 'uc.date_last') { if ( empty( $row['date_last'] ) ) { $category['date_last'] = 0; } else { list($year,$month,$day) = explode( '-', $row['date_last'] ); $category['date_last'] = mktime(0,0,0,$month,$day,$year); } } else if ( isset( $row[$info] ) ) $category[$info] = $row[$info]; else $category[$info] = ''; } $plain_structure[$row['id']] = $category; } return $plain_structure; } function create_user_structure( $id_uppercat ) { global $page; if ( !isset( $page['plain_structure'] ) ) $page['plain_structure'] = get_user_plain_structure(); $structure = array(); $ids = get_user_subcat_ids( $id_uppercat ); foreach ( $ids as $id ) { $category = $page['plain_structure'][$id]; $category['subcats'] = create_user_structure( $id ); array_push( $structure, $category ); } return $structure; } function get_user_subcat_ids( $id_uppercat ) { global $page; $ids = array(); foreach ( $page['plain_structure'] as $id => $category ) { if ( $category['id_uppercat'] == $id_uppercat ) array_push( $ids, $id ); else if ( count( $ids ) > 0 ) return $ids; } return $ids; } // update_structure updates or add informations about each node of the // structure : // // 1. should the category be expanded in the menu ? // If the category has to be expanded (ie its id is in the // $page['tab_expand'] or all the categories must be expanded by default), // $category['expanded'] is set to true. // // 2. associated expand string // in the menu, there is a expand string (used in the URL) to tell which // categories must be expanded in the menu if this category is chosen function update_structure( $categories ) { global $page, $user; $updated_categories = array(); foreach ( $categories as $category ) { // update the "expanded" key if ( $user['expand'] or in_array( $category['id'], $page['tab_expand'] ) ) { $category['expanded'] = true; } else { $category['expanded'] = false; } // recursive call $category['subcats'] = update_structure( $category['subcats'] ); // adding the updated category array_push( $updated_categories, $category ); } return $updated_categories; } // count_images returns the number of pictures contained in the given // category represented by an array, in this array, we have (among other // things) : // $category['nb_images'] -> number of pictures in this category // $category['subcats'] -> array of sub-categories // count_images goes to the deepest sub-category to find the total number of // pictures contained in the given given category function count_images( $categories ) { return count_user_total_images(); $total = 0; foreach ( $categories as $category ) { $total+= $category['nb_images']; $total+= count_images( $category['subcats'] ); } return $total; } function count_user_total_images() { global $user; $query = 'SELECT SUM(nb_images) AS total'; $query.= ' FROM '.CATEGORIES_TABLE; if ( count( $user['restrictions'] ) > 0 ) $query.= ' WHERE id NOT IN ('.$user['forbidden_categories'].')'; $query.= ';'; $row = mysql_fetch_array( mysql_query( $query ) ); if ( !isset( $row['total'] ) ) $row['total'] = 0; return $row['total']; } /** * Retrieve informations about a category in the database * * Returns an array with following keys : * * - comment * - dir : directory, might be empty for virtual categories * - name : an array with indexes from 0 (lowest cat name) to n (most * uppercat name findable) * - nb_images * - id_uppercat * - site_id * - * * @param int category id * @return array */ function get_cat_info( $id ) { $infos = array( 'nb_images','id_uppercat','comment','site_id','galleries_url' ,'dir','date_last','uploadable','status','visible' ,'representative_picture_id','uppercats' ); $query = 'SELECT '.implode( ',', $infos ); $query.= ' FROM '.CATEGORIES_TABLE.' AS a'; $query.= ', '.SITES_TABLE.' AS b'; $query.= ' WHERE a.id = '.$id; $query.= ' AND a.site_id = b.id'; $query.= ';'; $row = mysql_fetch_array( mysql_query( $query ) ); $cat = array(); // affectation of each field of the table "config" to an information of the // array $cat. foreach ( $infos as $info ) { if ( isset( $row[$info] ) ) $cat[$info] = $row[$info]; else $cat[$info] = ''; // If the field is true or false, the variable is transformed into a // boolean value. if ( $cat[$info] == 'true' or $cat[$info] == 'false' ) { $cat[$info] = get_boolean( $cat[$info] ); } } $cat['comment'] = nl2br( $cat['comment'] ); $cat['name'] = array(); $query = 'SELECT name,id FROM '.CATEGORIES_TABLE; $query.= ' WHERE id IN ('.$cat['uppercats'].')'; $query.= ' ORDER BY id ASC'; $query.= ';'; $result = mysql_query( $query ); while( $row = mysql_fetch_array( $result ) ) { $cat['name'][$row['id']] = $row['name']; } return $cat; } // get_complete_dir returns the concatenation of get_site_url and // get_local_dir // Example : "pets > rex > 1_year_old" is on the the same site as the // PhpWebGallery files and this category has 22 for identifier // get_complete_dir(22) returns "./galleries/pets/rex/1_year_old/" function get_complete_dir( $category_id ) { return get_site_url( $category_id ).get_local_dir( $category_id ); } // get_local_dir returns an array with complete path without the site url // Example : "pets > rex > 1_year_old" is on the the same site as the // PhpWebGallery files and this category has 22 for identifier // get_local_dir(22) returns "pets/rex/1_year_old/" function get_local_dir( $category_id ) { global $page; $uppercats = ''; $local_dir = ''; if ( isset( $page['plain_structure'][$category_id]['uppercats'] ) ) { $uppercats = $page['plain_structure'][$category_id]['uppercats']; } else { $query = 'SELECT uppercats'; $query.= ' FROM '.CATEGORIES_TABLE.' WHERE id = '.$category_id; $query.= ';'; $row = mysql_fetch_array( mysql_query( $query ) ); $uppercats = $row['uppercats']; } $upper_array = explode( ',', $uppercats ); $database_dirs = array(); $query = 'SELECT id,dir'; $query.= ' FROM '.CATEGORIES_TABLE.' WHERE id IN ('.$uppercats.')'; $query.= ';'; $result = mysql_query( $query ); while( $row = mysql_fetch_array( $result ) ) { $database_dirs[$row['id']] = $row['dir']; } foreach ( $upper_array as $id ) { $local_dir.= $database_dirs[$id].'/'; } return $local_dir; } // retrieving the site url : "http://domain.com/gallery/" or // simply "./galleries/" function get_site_url( $category_id ) { global $page; $query = 'SELECT galleries_url'; $query.= ' FROM '.SITES_TABLE.' AS s,'.CATEGORIES_TABLE.' AS c'; $query.= ' WHERE s.id = c.site_id'; $query.= ' AND c.id = '.$category_id; $query.= ';'; $row = mysql_fetch_array( mysql_query( $query ) ); return $row['galleries_url']; } // initialize_category initializes ;-) the variables in relation // with category : // 1. calculation of the number of pictures in the category // 2. determination of the SQL query part to ask to find the right category // $page['where'] is not the same if we are in // - simple category // - search result // - favorites displaying // - most visited pictures // - best rated pictures // - recent pictures // 3. determination of the title of the page // 4. creation of the navigation bar function initialize_category( $calling_page = 'category' ) { pwg_debug( 'start initialize_category' ); global $page,$lang,$user,$conf; if ( isset( $page['cat'] ) ) { // $page['nb_image_page'] is the number of picture to display on this page // By default, it is the same as the $user['nb_image_page'] $page['nb_image_page'] = $user['nb_image_page']; // $url is used to create the navigation bar $url = './category.php?cat='.$page['cat']; if ( isset($page['expand']) ) $url.= '&expand='.$page['expand']; // simple category if ( is_numeric( $page['cat'] ) ) { $result = get_cat_info( $page['cat'] ); $page['comment'] = $result['comment']; $page['cat_dir'] = $result['dir']; $page['cat_name'] = $result['name']; $page['cat_nb_images'] = $result['nb_images']; $page['cat_site_id'] = $result['site_id']; $page['cat_uploadable'] = $result['uploadable']; $page['uppercats'] = $result['uppercats']; $page['title'] = get_cat_display_name( $page['cat_name'],' - ','',false); $page['where'] = ' WHERE category_id = '.$page['cat']; } else { if ( $page['cat'] == 'search' or $page['cat'] == 'most_visited' or $page['cat'] == 'recent_pics' or $page['cat'] == 'recent_cats' or $page['cat'] == 'best_rated' or $page['cat'] == 'calendar' ) { // we must not show pictures of a forbidden category if ( $user['forbidden_categories'] != '' ) { $forbidden = ' category_id NOT IN '; $forbidden.= '('.$user['forbidden_categories'].')'; } } // search result if ( $page['cat'] == 'search' ) { $page['title'] = $lang['search_result']; if ( $calling_page == 'picture' ) { $page['title'].= ' : '; $page['title'].= $_GET['search'].""; } $page['where'] = ' WHERE ('; $fields = array( 'file', 'name', 'comment', 'keywords' ); $words = explode( ',', $_GET['search'] ); $sql_search = array(); foreach ( $words as $i => $word ) { // if the user searchs any of the words, the where statement must // be : // field1 LIKE '%$word1%' OR field2 LIKE '%$word1%' ... // OR field1 LIKE '%$word2%' OR field2 LIKE '%$word2%' ... if ( $_GET['mode'] == 'OR' ) { if ( $i != 0 ) $page['where'].= ' OR'; foreach ( $fields as $j => $field ) { if ( $j != 0 ) $page['where'].= ' OR'; $page['where'].= ' '.$field." LIKE '%".$word."%'"; } } // if the user searchs all the words : // ( field1 LIKE '%$word1%' OR field2 LIKE '%$word1%' ) // AND ( field1 LIKE '%$word2%' OR field2 LIKE '%$word2%' ) else if ( $_GET['mode'] == 'AND' ) { if ( $i != 0 ) $page['where'].= ' AND'; $page['where'].= ' ('; foreach ( $fields as $j => $field ) { if ( $j != 0 ) $page['where'].= ' OR'; $page['where'].= ' '.$field." LIKE '%".$word."%'"; } $page['where'].= ' )'; } } $page['where'].= ' )'; if ( isset( $forbidden ) ) $page['where'].= ' AND '.$forbidden; $query = 'SELECT COUNT(DISTINCT(id)) AS nb_total_images'; $query.= ' FROM '.IMAGES_TABLE; $query.= ' INNER JOIN '.IMAGE_CATEGORY_TABLE.' AS ic'; $query.= ' ON id = ic.image_id'; $query.= $page['where']; $query.= ';'; $url.= '&search='.$_GET['search'].'&mode='.$_GET['mode']; } // favorites displaying else if ( $page['cat'] == 'fav' ) { $page['title'] = $lang['favorites']; $page['where'] = ', '.FAVORITES_TABLE.' AS fav'; $page['where'].= ' WHERE user_id = '.$user['id']; $page['where'].= ' AND fav.image_id = id'; $query = 'SELECT COUNT(*) AS nb_total_images'; $query.= ' FROM '.FAVORITES_TABLE; $query.= ' WHERE user_id = '.$user['id']; $query.= ';'; } // pictures within the short period else if ( $page['cat'] == 'recent_pics' ) { $page['title'] = $lang['recent_pics_cat_title']; // We must find the date corresponding to : // today - $conf['periode_courte'] $date = time() - 60*60*24*$user['short_period']; $page['where'] = " WHERE date_available > '"; $page['where'].= date( 'Y-m-d', $date )."'"; if ( isset( $forbidden ) ) $page['where'].= ' AND '.$forbidden; $query = 'SELECT COUNT(DISTINCT(id)) AS nb_total_images'; $query.= ' FROM '.IMAGES_TABLE; $query.= ' INNER JOIN '.PREFIX_TABLE.'image_category AS ic'; $query.= ' ON id = ic.image_id'; $query.= $page['where']; $query.= ';'; } // categories containing recent pictures else if ( $page['cat'] == 'recent_cats' ) { $page['title'] = $lang['recent_cats_cat_title']; $page['cat_nb_images'] = 0; } // most visited pictures else if ( $page['cat'] == 'most_visited' ) { $page['title'] = $conf['top_number'].' '.$lang['most_visited_cat']; if ( isset( $forbidden ) ) $page['where'] = ' WHERE '.$forbidden; else $page['where'] = ''; $conf['order_by'] = ' ORDER BY hit DESC, file ASC'; $page['cat_nb_images'] = $conf['top_number']; if ( isset( $page['start'] ) and ($page['start']+$user['nb_image_page']>=$conf['top_number'])) { $page['nb_image_page'] = $conf['top_number'] - $page['start']; } } else if ( $page['cat'] == 'calendar' ) { $page['cat_nb_images'] = 0; $page['title'] = $lang['calendar']; if (isset($_GET['year']) and preg_match('/^\d+$/', $_GET['year'])) { $page['calendar_year'] = (int)$_GET['year']; } if (isset($_GET['month']) and preg_match('/^(\d+)\.(\d{2})$/', $_GET['month'], $matches)) { $page['calendar_year'] = (int)$matches[1]; $page['calendar_month'] = (int)$matches[2]; } if (isset($_GET['day']) and preg_match('/^(\d+)\.(\d{2})\.(\d{2})$/', $_GET['day'], $matches)) { $page['calendar_year'] = (int)$matches[1]; $page['calendar_month'] = (int)$matches[2]; $page['calendar_day'] = (int)$matches[3]; } if (isset($page['calendar_year'])) { $page['title'] .= ' ('; if (isset($page['calendar_day'])) { $unixdate = mktime(0,0,0, $page['calendar_month'], $page['calendar_day'], $page['calendar_year']); $page['title'].= $lang['day'][date("w", $unixdate)]; $page['title'].= ' '.$page['calendar_day'].', '; } if (isset($page['calendar_month'])) { $page['title'] .= $lang['month'][$page['calendar_month']].' '; } $page['title'] .= $page['calendar_year']; $page['title'] .= ')'; } if (isset($forbidden)) { $page['where'] = 'WHERE '.$forbidden; } else { $page['where'] = 'WHERE 1=1'; } } if (isset($query)) { $result = mysql_query( $query ); $row = mysql_fetch_array( $result ); $page['cat_nb_images'] = $row['nb_total_images']; } } if ( $calling_page == 'category' ) { $page['navigation_bar'] = create_navigation_bar( $url, $page['cat_nb_images'], $page['start'], $user['nb_image_page'], 'back' ); } } else { $page['title'] = $lang['diapo_default_page_title']; } pwg_debug( 'end initialize_category' ); } // get_non_empty_subcat_ids returns an array with sub-categories id // associated with their first non empty category id. // // example : // // - catname [cat_id] // - cat1 [1] -> given uppercat // - cat1.1 [12] (empty) // - cat1.1.1 [5] (empty) // - cat1.1.2 [6] // - cat1.2 [3] // - cat1.3 [4] // // get_non_empty_sub_cat_ids will return : // $ids[12] = 6; // $ids[3] = 3; // $ids[4] = 4; function get_non_empty_subcat_ids( $id_uppercat ) { global $user; $ids = array(); $query = 'SELECT id,nb_images'; $query.= ' FROM '.CATEGORIES_TABLE; $query.= ' WHERE id_uppercat '; if ( !is_numeric( $id_uppercat ) ) $query.= 'is NULL'; else $query.= '= '.$id_uppercat; // we must not show pictures of a forbidden category if ( $user['forbidden_categories'] != '' ) { $query.= ' AND id NOT IN ('.$user['forbidden_categories'].')'; } $query.= ' ORDER BY rank'; $query.= ';'; $result = mysql_query( $query ); while ( $row = mysql_fetch_array( $result ) ) { // only categories with findable picture in any of its subcats is // represented. if ( ( $row['nb_images'] != 0 and $non_empty_cat = $row['id'] ) or $non_empty_cat = get_first_non_empty_cat_id( $row['id'] ) ) { $ids[$row['id']] = $non_empty_cat; } } return $ids; } // get_first_non_empty_cat_id returns the id of the first non empty // sub-category to the given uppercat. If no picture is found in any // subcategory, false is returned. function get_first_non_empty_cat_id( $id_uppercat ) { global $user; $query = 'SELECT id,nb_images'; $query.= ' FROM '.CATEGORIES_TABLE; $query.= ' WHERE id_uppercat = '.$id_uppercat; // we must not show pictures of a forbidden category if ( $user['forbidden_categories'] != '' ) { $query.= ' AND id NOT IN ('.$user['forbidden_categories'].')'; } $query.= ' ORDER BY RAND()'; $query.= ';'; $result = mysql_query( $query ); while ( $row = mysql_fetch_array( $result ) ) { if ( $row['nb_images'] > 0 ) { return $row['id']; } } $result = mysql_query( $query ); while ( $row = mysql_fetch_array( $result ) ) { // recursive call if ( $subcat = get_first_non_empty_cat_id( $row['id'] ) ) { return $subcat; } } return false; } ?>