662 lines
No EOL
21 KiB
PHP
662 lines
No EOL
21 KiB
PHP
<?php
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/***************************************************************************
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* functions_category.inc.php *
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* -------------------- *
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* application : PhpWebGallery 1.3 <http://phpwebgallery.net> *
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* author : Pierrick LE GALL <pierrick@z0rglub.com> *
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* *
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* $Id$
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* *
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***************************************************************************
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; *
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* *
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***************************************************************************/
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function get_subcats_id( $cat_id )
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{
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$restricted_cats = array();
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$query = 'SELECT id';
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$query.= ' FROM '.PREFIX_TABLE.'categories';
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$query.= ' WHERE id_uppercat = '.$cat_id;
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$query.= ';';
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$result = mysql_query( $query );
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while ( $row = mysql_fetch_array( $result ) )
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{
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array_push( $restricted_cats, $row['id'] );
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$sub_restricted_cats = get_subcats_id( $row['id'] );
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foreach ( $sub_restricted_cats as $sub_restricted_cat ) {
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array_push( $restricted_cats, $sub_restricted_cat );
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}
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}
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return $restricted_cats;
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}
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function check_restrictions( $category_id )
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{
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global $user,$lang;
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if ( is_user_allowed( $category_id, $user['restrictions'] ) > 0 )
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{
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echo '<div style="text-align:center;">'.$lang['access_forbiden'].'<br />';
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echo '<a href="'.add_session_id( './category.php' ).'">';
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echo $lang['thumbnails'].'</a></div>';
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exit();
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}
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}
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// the check_cat_id function check whether the $cat is a right parameter :
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// - $cat is numeric and corresponds to a category in the database
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// - $cat equals 'fav' (for favorites)
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// - $cat equals 'search' (when the result of a search is displayed)
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function check_cat_id( $cat )
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{
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global $page;
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unset( $page['cat'] );
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if ( isset( $cat ) )
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{
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if ( isset( $page['plain_structure'] ) )
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{
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if ( isset( $page['plain_structure'][$cat] ) )
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{
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$page['cat'] = $cat;
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}
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}
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else if ( is_numeric( $cat ) )
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{
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$query = 'SELECT id';
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$query.= ' FROM '.PREFIX_TABLE.'categories';
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$query.= ' WHERE id = '.$cat;
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$query. ';';
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$result = mysql_query( $query );
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if ( mysql_num_rows( $result ) != 0 )
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{
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$page['cat'] = $cat;
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}
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}
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if ( $cat == 'fav'
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or $cat == 'search'
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or $cat == 'most_visited'
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or $cat == 'best_rated'
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or $cat == 'recent' )
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{
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$page['cat'] = $cat;
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}
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}
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}
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function get_plain_structure()
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{
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$infos = array( 'name','id','date_last','nb_images','dir','id_uppercat',
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'rank','site_id');
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$query = 'SELECT ';
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foreach ( $infos as $i => $info ) {
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if ( $i > 0 ) $query.= ',';
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$query.= $info;
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}
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$query.= ' FROM '.PREFIX_TABLE.'categories';
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$query.= ' ORDER BY id_uppercat ASC, rank ASC';
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$query.= ';';
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$plain_structure = array();
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$result = mysql_query( $query );
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while ( $row = mysql_fetch_array( $result ) )
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{
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$category = array();
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foreach ( $infos as $info ) {
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$category[$info] = $row[$info];
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if ( $info == 'date_last' )
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{
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list($year,$month,$day) = explode( '-', $row[$info] );
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$category[$info] = mktime(0,0,0,$month,$day,$year);
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}
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}
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$plain_structure[$row['id']] = $category;
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}
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return $plain_structure;
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}
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function create_structure( $id_uppercat, $restrictions )
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{
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global $page;
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if ( !isset( $page['plain_structure'] ) )
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$page['plain_structure'] = get_plain_structure();
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$structure = array();
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$ids = get_subcat_ids( $id_uppercat );
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foreach ( $ids as $id ) {
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if ( !in_array( $id, $restrictions ) )
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{
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$category = $page['plain_structure'][$id];
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$category['subcats'] = create_structure( $id, $restrictions );
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array_push( $structure, $category );
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}
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}
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return $structure;
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}
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function get_subcat_ids( $id_uppercat )
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{
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global $page;
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$ids = array();
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foreach ( $page['plain_structure'] as $id => $category ) {
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if ( $category['id_uppercat'] == $id_uppercat ) array_push( $ids, $id );
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else if ( count( $ids ) > 0 ) return $ids;
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}
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return $ids;
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}
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// update_structure updates or add informations about each node of the
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// structure : the last date, should the category be expanded in the menu ?,
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// the associated expand string "48,14,54"
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//
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// 1. last date
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// for each category of the structure, we have to find the most recent
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// subcat so that the parent cat has the same last_date info.
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// For example : we have :
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// > pets (2003.02.15)
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// > dogs (2003.06.14)
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// > rex (2003.06.18)
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// > toby (2003.06.13)
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// > kitten (2003.07.05)
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// We finally want to have :
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// > pets (2003.07.05) <- changed to pets > kitten last date
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// > dogs (2003.06.18) <- changed to pets > dogs > rex last date
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// > rex (2003.06.18)
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// > toby (2003.06.13)
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// > kitten (2003.07.05)
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//
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// 2. should the category be expanded in the menu ?
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// If the category has to be expanded (ie its id is in the
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// $page['tab_expand'] or all the categories must be expanded by default),
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// $category['expanded'] is set to true.
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//
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// 3. associated expand string
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// in the menu, there is a expand string (used in the URL) to tell which
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// categories must be expanded in the menu if this category is chosen
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function update_structure( $categories )
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{
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global $page, $user;
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$updated_categories = array();
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foreach ( $categories as $category ) {
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// update the last date of the category
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$last_date = search_last_date( $category );
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$category['date_last'] = $last_date;
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// update the "expanded" key
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if ( $user['expand']
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or $page['expand'] == 'all'
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or in_array( $category['id'], $page['tab_expand'] ) )
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{
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$category['expanded'] = true;
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}
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else
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{
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$category['expanded'] = false;
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}
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// update the "expand_string" key
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if ( $page['expand'] == 'all' )
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{
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$category['expand_string'] = 'all';
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}
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else
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{
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$tab_expand = $page['tab_expand'];
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if ( in_array( $category['id'], $page['tab_expand'] ) )
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{
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// the expand string corresponds to the $page['tab_expand'] without
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// the $category['id']
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$tab_expand = array_diff( $page['tab_expand'],array($category['id']) );
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}
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else if ( count( $category['subcats'] ) > 0 )
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{
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// we have this time to add the $category['id']...
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$tab_expand = array_merge($page['tab_expand'],array($category['id']));
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}
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$category['expand_string'] = implode( ',', $tab_expand );
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}
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// recursive call
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$category['subcats'] = update_structure( $category['subcats'] );
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// adding the updated category
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array_push( $updated_categories, $category );
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}
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return $updated_categories;
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}
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// search_last_date searchs the last date for a given category. If we take
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// back the example given for update_last_dates, we should have :
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// search_last_date( pets ) --> 2003.07.05
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// search_last_date( pets > dogs ) --> 2003.06.18
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// and so on
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function search_last_date( $category )
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{
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$date_last = $category['date_last'];
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foreach ( $category['subcats'] as $subcat ) {
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$subcat_date_last = search_last_date( $subcat );
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if ( $subcat_date_last > $date_last )
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{
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$date_last = $subcat_date_last;
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}
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}
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return $date_last;
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}
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// count_images returns the number of pictures contained in the given
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// category represented by an array, in this array, we have (among other
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// things) :
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// $category['nb_images'] -> number of pictures in this category
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// $category['subcats'] -> array of sub-categories
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// count_images goes to the deepest sub-category to find the total number of
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// pictures contained in the given given category
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function count_images( $categories )
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{
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$total = 0;
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foreach ( $categories as $category ) {
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$total+= $category['nb_images'];
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$total+= count_images( $category['subcats'] );
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}
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return $total;
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}
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// variables :
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// $cat['comment']
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// $cat['dir']
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// $cat['dir']
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// $cat['name'] is an array :
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// - $cat['name'][0] is the lowest cat name
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// and
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// - $cat['name'][n] is the most uppercat name findable
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// $cat['nb_images']
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// $cat['id_uppercat']
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// $cat['site_id']
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function get_cat_info( $id )
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{
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global $page;
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$cat = array();
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$query = 'SELECT nb_images,id_uppercat,comment,site_id,galleries_url,dir';
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$query.= ',date_last,uploadable,status,visible,representative_picture_id';
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$query.= ' FROM '.PREFIX_TABLE.'categories AS a';
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$query.= ', '.PREFIX_TABLE.'sites AS b';
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$query.= ' WHERE a.id = '.$id;
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$query.= ' AND a.site_id = b.id;';
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$row = mysql_fetch_array( mysql_query( $query ) );
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$cat['site_id'] = $row['site_id'];
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$cat['id_uppercat'] = $row['id_uppercat'];
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$cat['comment'] = nl2br( $row['comment'] );
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$cat['nb_images'] = $row['nb_images'];
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$cat['dir'] = $row['dir'];
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$cat['date_last'] = $row['date_last'];
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$cat['uploadable'] = get_boolean( $row['uploadable'] );
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$cat['status'] = $row['status'];
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$cat['visible'] = get_boolean( $row['visible'] );
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$cat['representative_picture_id'] = $row['representative_picture_id'];
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$cat['name'] = array();
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if ( !isset( $page['plain_structure'] ) )
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$page['plain_structure'] = get_plain_structure();
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array_push( $cat['name'], $page['plain_structure'][$id]['name'] );
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while ( $page['plain_structure'][$id]['id_uppercat'] != '' )
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{
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$id = $page['plain_structure'][$id]['id_uppercat'];
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array_push( $cat['name'], $page['plain_structure'][$id]['name'] );
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}
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return $cat;
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}
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// get_complete_dir returns the concatenation of get_site_url and
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// get_local_dir
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// Example : "pets > rex > 1_year_old" is on the the same site as the
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// PhpWebGallery files and this category has 22 for identifier
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// get_complete_dir(22) returns "./galleries/pets/rex/1_year_old/"
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function get_complete_dir( $category_id )
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{
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return get_site_url( $category_id ).get_local_dir( $category_id );
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}
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// get_local_dir returns an array with complete path without the site url
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// Example : "pets > rex > 1_year_old" is on the the same site as the
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// PhpWebGallery files and this category has 22 for identifier
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// get_local_dir(22) returns "pets/rex/1_year_old/"
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function get_local_dir( $category_id )
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{
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global $page;
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if ( !isset( $page['plain_structure'] ) )
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$page['plain_structure'] = get_plain_structure();
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// creating the local path : "root_cat/sub_cat/sub_sub_cat/"
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$dir = $page['plain_structure'][$category_id]['dir'].'/';
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while ( $page['plain_structure'][$category_id]['id_uppercat'] != '' )
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{
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$category_id = $page['plain_structure'][$category_id]['id_uppercat'];
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$dir = $page['plain_structure'][$category_id]['dir'].'/'.$dir;
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}
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return $dir;
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}
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// retrieving the site url : "http://domain.com/gallery/" or
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// simply "./galleries/"
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function get_site_url( $category_id )
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{
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global $page;
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if ( !isset( $page['plain_structure'] ) )
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$page['plain_structure'] = get_plain_structure();
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$query = 'SELECT galleries_url';
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$query.= ' FROM '.PREFIX_TABLE.'sites';
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$query.= ' WHERE id = '.$page['plain_structure'][$category_id]['site_id'];
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$query.= ';';
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$row = mysql_fetch_array( mysql_query( $query ) );
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return $row['galleries_url'];
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}
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// The function get_cat_display_name returns a string containing the list
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// of upper categories to the root category from the lowest category shown
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// example : "anniversaires - fete mere 2002 - animaux - erika"
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// You can give two parameters :
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// - $separation : the string between each category name " - " for example
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// - $style : the style of the span tag for the lowest category,
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// "font-style:italic;" for example
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function get_cat_display_name( $array_cat_names, $separation, $style )
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{
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$output = "";
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for ( $i = sizeof( $array_cat_names ) - 1; $i >= 0; $i-- )
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{
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if ( $i != sizeof( $array_cat_names ) - 1 )
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{
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$output.= $separation;
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}
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if ( $i != 0 )
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{
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$output.= $array_cat_names[$i];
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}
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else
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{
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if ( $style != "" )
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{
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$output.= '<span style="'.$style.'">';
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}
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$output.= $array_cat_names[$i];
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if ( $style != "" )
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{
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$output.= "</span>";
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}
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}
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}
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return replace_space( $output );
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}
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// initialize_category initializes ;-) the variables in relation
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// with category :
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// 1. calculation of the number of pictures in the category
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// 2. determination of the SQL query part to ask to find the right category
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// $page['where'] is not the same if we are in
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// - simple category
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// - search result
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// - favorites displaying
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// - most visited pictures
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// - best rated pictures
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// - recent pictures
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// 3. determination of the title of the page
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// 4. creation of the navigation bar
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function initialize_category( $calling_page = 'category' )
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{
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global $page,$lang,$user,$conf;
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if ( isset( $page['cat'] ) )
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{
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// $page['nb_image_page'] is the number of picture to display on this page
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// By default, it is the same as the $user['nb_image_page']
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$page['nb_image_page'] = $user['nb_image_page'];
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// $url is used to create the navigation bar
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$url = './category.php?cat='.$page['cat'].'&expand='.$page['expand'];
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// simple category
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if ( is_numeric( $page['cat'] ) )
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{
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$result = get_cat_info( $page['cat'] );
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$page['comment'] = $result['comment'];
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$page['cat_dir'] = $result['dir'];
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$page['cat_name'] = $result['name'];
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$page['cat_nb_images'] = $result['nb_images'];
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$page['cat_site_id'] = $result['site_id'];
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$page['cat_uploadable'] = $result['uploadable'];
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$page['title'] = get_cat_display_name( $page['cat_name'], ' - ', '' );
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$page['where'] = ' WHERE category_id = '.$page['cat'];
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}
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else
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{
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if ( $page['cat'] == 'search' or $page['cat'] == 'most_visited'
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or $page['cat'] == 'recent' or $page['cat'] == 'best_rated' )
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{
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// we must not show pictures of a forbidden category
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$restricted_cats = get_all_restrictions( $user['id'],$user['status'] );
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if ( count( $restricted_cats ) > 0 )
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{
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$where_append.= ' AND category_id NOT IN (';
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foreach ( $restricted_cats as $i => $restricted_cat ) {
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if ( $i > 0 ) $where_append.= ',';
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$where_append.= $restricted_cat;
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}
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$where_append.= ')';
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}
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}
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// search result
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if ( $page['cat'] == 'search' )
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{
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$page['title'] = $lang['search_result'];
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if ( $calling_page == 'picture' )
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{
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$page['title'].= ' : <span style="font-style:italic;">';
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$page['title'].= $_GET['search']."</span>";
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}
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$page['where'] = ' WHERE (';
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$fields = array( 'file', 'name', 'comment', 'keywords' );
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$words = explode( ',', $_GET['search'] );
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$sql_search = array();
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foreach ( $words as $i => $word ) {
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// if the user searchs any of the words, the where statement must
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// be :
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// field1 LIKE '%$word1%' OR field2 LIKE '%$word1%' ...
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// OR field1 LIKE '%$word2%' OR field2 LIKE '%$word2%' ...
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if ( $_GET['mode'] == 'OR' )
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{
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if ( $i != 0 ) $page['where'].= ' OR';
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foreach ( $fields as $j => $field ) {
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if ( $j != 0 ) $page['where'].= ' OR';
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$page['where'].= ' '.$field." LIKE '%".$word."%'";
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}
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}
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// if the user searchs all the words :
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// ( field1 LIKE '%$word1%' OR field2 LIKE '%$word1%' )
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// 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'].= ' )';
|
|
$page['where'].= $where_append;
|
|
|
|
$query = 'SELECT COUNT(DISTINCT(id)) AS nb_total_images';
|
|
$query.= ' FROM '.PREFIX_TABLE.'images';
|
|
$query.= ' LEFT JOIN '.PREFIX_TABLE.'image_category 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'] = ', '.PREFIX_TABLE.'favorites 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 '.PREFIX_TABLE.'favorites';
|
|
$query.= ' WHERE user_id = '.$user['id'];
|
|
$query.= ';';
|
|
}
|
|
// pictures within the short period
|
|
else if ( $page['cat'] == 'recent' )
|
|
{
|
|
$page['title'] = $lang['recent_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 )."'";
|
|
$page['where'].= $where_append;
|
|
|
|
$query = 'SELECT COUNT(DISTINCT(id)) AS nb_total_images';
|
|
$query.= ' FROM '.PREFIX_TABLE.'images';
|
|
$query.= ' LEFT JOIN '.PREFIX_TABLE.'image_category AS ic';
|
|
$query.= ' ON id = ic.image_id';
|
|
$query.= $page['where'];
|
|
$query.= ';';
|
|
}
|
|
// most visited pictures
|
|
else if ( $page['cat'] == 'most_visited' )
|
|
{
|
|
$page['title'] = $conf['top_number'].' '.$lang['most_visited_cat'];
|
|
$page['where'] = ' WHERE category_id != -1'.$where_append;
|
|
$conf['order_by'] = ' ORDER BY hit DESC, file ASC';
|
|
$page['cat_nb_images'] = $conf['top_number'];
|
|
if ( $page['start'] + $user['nb_image_page'] >= $conf['top_number'] )
|
|
{
|
|
$page['nb_image_page'] = $conf['top_number'] - $page['start'];
|
|
}
|
|
}
|
|
|
|
if ( $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'];
|
|
}
|
|
}
|
|
|
|
// 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 '.PREFIX_TABLE.'categories';
|
|
$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
|
|
foreach ( $user['restrictions'] as $restricted_cat ) {
|
|
$query.= ' AND id != '.$restricted_cat;
|
|
}
|
|
$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 '.PREFIX_TABLE.'categories';
|
|
$query.= ' WHERE id_uppercat = '.$id_uppercat;
|
|
// we must not show pictures of a forbidden category
|
|
foreach ( $user['restrictions'] as $restricted_cat ) {
|
|
$query.= ' AND id != '.$restricted_cat;
|
|
}
|
|
$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;
|
|
}
|
|
?>
|