mirror of
https://github.com/Piwigo/Piwigo.git
synced 2026-03-28 17:42:57 +01:00
57b44b3146
and not the ascending order of category ids (if you alterate manually the database by moving an old category under a new one). git-svn-id: http://piwigo.org/svn/branches/release-1_3@271 68402e56-0260-453c-a942-63ccdbb3a9ee
646 lines
20 KiB
PHP
646 lines
20 KiB
PHP
<?php
|
|
/***************************************************************************
|
|
* functions_category.inc.php *
|
|
* -------------------- *
|
|
* application : PhpWebGallery 1.3 <http://phpwebgallery.net> *
|
|
* author : Pierrick LE GALL <pierrick@z0rglub.com> *
|
|
* *
|
|
* $Id$
|
|
* *
|
|
***************************************************************************
|
|
|
|
***************************************************************************
|
|
* *
|
|
* 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; *
|
|
* *
|
|
***************************************************************************/
|
|
|
|
function check_restrictions( $category_id )
|
|
{
|
|
global $user,$lang;
|
|
|
|
if ( in_array( $category_id, $user['restrictions'] ) )
|
|
{
|
|
echo '<div style="text-align:center;">'.$lang['access_forbiden'].'<br />';
|
|
echo '<a href="'.add_session_id( './category.php' ).'">';
|
|
echo $lang['thumbnails'].'</a></div>';
|
|
exit();
|
|
}
|
|
}
|
|
|
|
// the check_cat_id function check whether the $cat is a right parameter :
|
|
// - $cat is numeric and corresponds to a category in the database
|
|
// - $cat equals 'fav' (for favorites)
|
|
// - $cat equals 'search' (when the result of a search is displayed)
|
|
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 '.PREFIX_TABLE.'categories';
|
|
$query.= ' WHERE id = '.$cat;
|
|
$query.= ';';
|
|
$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' )
|
|
{
|
|
$page['cat'] = $cat;
|
|
}
|
|
}
|
|
}
|
|
|
|
function get_user_plain_structure()
|
|
{
|
|
global $page,$user;
|
|
|
|
$infos = array( 'name','id','uc.date_last','nb_images','dir','id_uppercat',
|
|
'rank','site_id','nb_sub_categories','uppercats');
|
|
|
|
$query = 'SELECT ';
|
|
foreach ( $infos as $i => $info ) {
|
|
if ( $i > 0 ) $query.= ',';
|
|
$query.= $info;
|
|
}
|
|
$query.= ' FROM '.PREFIX_TABLE.'categories AS c';
|
|
// $query.= ' ,'.PREFIX_TABLE.'user_category AS uc';
|
|
$query.= ' INNER JOIN '.PREFIX_TABLE.'user_category AS uc';
|
|
$query.= ' ON c.id = uc.category_id';
|
|
$query.= ' WHERE user_id = '.$user['id'];
|
|
if ( $page['expand'] != 'all' )
|
|
{
|
|
$query.= ' AND (id_uppercat is NULL';
|
|
if ( count( $page['tab_expand'] ) > 0 )
|
|
{
|
|
$query.= ' OR id_uppercat IN ('.$page['expand'].')';
|
|
}
|
|
$query.= ')';
|
|
}
|
|
if ( $user['forbidden_categories'] != '' )
|
|
{
|
|
$query.= ' AND id NOT IN ';
|
|
$query.= '('.$user['forbidden_categories'].')';
|
|
}
|
|
// $query.= ' AND c.id = uc.category_id';
|
|
$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 ) {
|
|
$category[$info] = $row[$info];
|
|
if ( $info == 'date_last' )
|
|
{
|
|
list($year,$month,$day) = explode( '-', $row[$info] );
|
|
$category[$info] = mktime(0,0,0,$month,$day,$year);
|
|
}
|
|
}
|
|
$plain_structure[$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 $page['expand'] == 'all'
|
|
or in_array( $category['id'], $page['tab_expand'] ) )
|
|
{
|
|
$category['expanded'] = true;
|
|
}
|
|
else
|
|
{
|
|
$category['expanded'] = false;
|
|
}
|
|
// update the "expand_string" key
|
|
if ( $page['expand'] == 'all' )
|
|
{
|
|
$category['expand_string'] = 'all';
|
|
}
|
|
else
|
|
{
|
|
$tab_expand = $page['tab_expand'];
|
|
if ( in_array( $category['id'], $page['tab_expand'] ) )
|
|
{
|
|
// the expand string corresponds to the $page['tab_expand'] without
|
|
// the $category['id']
|
|
$tab_expand = array_diff( $page['tab_expand'],array($category['id']) );
|
|
}
|
|
else if ( $category['nb_sub_categories'] > 0 )
|
|
{
|
|
// we have this time to add the $category['id']...
|
|
$tab_expand = array_merge($page['tab_expand'],array($category['id']));
|
|
}
|
|
$category['expand_string'] = implode( ',', $tab_expand );
|
|
}
|
|
// 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 '.PREFIX_TABLE.'categories';
|
|
if ( count( $user['restrictions'] ) > 0 )
|
|
$query.= ' WHERE id NOT IN ('.$user['forbidden_categories'].')';
|
|
$query.= ';';
|
|
|
|
$row = mysql_fetch_array( mysql_query( $query ) );
|
|
|
|
return $row['total'];
|
|
}
|
|
|
|
// variables :
|
|
// $cat['comment']
|
|
// $cat['dir']
|
|
// $cat['dir']
|
|
// $cat['name'] is an array :
|
|
// - $cat['name'][0] is the lowest cat name
|
|
// and
|
|
// - $cat['name'][n] is the most uppercat name findable
|
|
// $cat['nb_images']
|
|
// $cat['id_uppercat']
|
|
// $cat['site_id']
|
|
function get_cat_info( $id )
|
|
{
|
|
global $page;
|
|
|
|
$cat = array();
|
|
|
|
$query = 'SELECT nb_images,id_uppercat,comment,site_id,galleries_url,dir';
|
|
$query.= ',date_last,uploadable,status,visible,representative_picture_id';
|
|
$query.= ',uppercats';
|
|
$query.= ' FROM '.PREFIX_TABLE.'categories AS a';
|
|
$query.= ', '.PREFIX_TABLE.'sites AS b';
|
|
$query.= ' WHERE a.id = '.$id;
|
|
$query.= ' AND a.site_id = b.id;';
|
|
$row = mysql_fetch_array( mysql_query( $query ) );
|
|
$cat['site_id'] = $row['site_id'];
|
|
$cat['id_uppercat'] = $row['id_uppercat'];
|
|
$cat['comment'] = nl2br( $row['comment'] );
|
|
$cat['nb_images'] = $row['nb_images'];
|
|
$cat['dir'] = $row['dir'];
|
|
$cat['date_last'] = $row['date_last'];
|
|
$cat['uploadable'] = get_boolean( $row['uploadable'] );
|
|
$cat['status'] = $row['status'];
|
|
$cat['visible'] = get_boolean( $row['visible'] );
|
|
$cat['uppercats'] = $row['uppercats'];
|
|
$cat['representative_picture_id'] = $row['representative_picture_id'];
|
|
|
|
$cat['name'] = array();
|
|
|
|
$query = 'SELECT name';
|
|
$query.= ' FROM '.PREFIX_TABLE.'categories';
|
|
$query.= ' WHERE id IN ('.$cat['uppercats'].')';
|
|
$query.= ' ORDER BY id ASC';
|
|
$query.= ';';
|
|
$result = mysql_query( $query );
|
|
while( $row = mysql_fetch_array( $result ) )
|
|
{
|
|
array_push( $cat['name'], $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 '.PREFIX_TABLE.'categories';
|
|
$query.= ' WHERE id = '.$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 '.PREFIX_TABLE.'categories';
|
|
$query.= ' WHERE id IN ('.$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 '.PREFIX_TABLE.'sites AS s,'.PREFIX_TABLE.'categories 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'];
|
|
}
|
|
|
|
// The function get_cat_display_name returns a string containing the list
|
|
// of upper categories to the root category from the lowest category shown
|
|
// example : "anniversaires - fete mere 2002 - animaux - erika"
|
|
// You can give two parameters :
|
|
// - $separation : the string between each category name " - " for example
|
|
// - $style : the style of the span tag for the lowest category,
|
|
// "font-style:italic;" for example
|
|
function get_cat_display_name( $array_cat_names, $separation,
|
|
$style, $replace_space = true )
|
|
{
|
|
$output = '';
|
|
foreach ( $array_cat_names as $i => $name ) {
|
|
if ( $i > 0 ) $output.= $separation;
|
|
if ( $i < count( $array_cat_names ) - 1 or $style == '')
|
|
$output.= $name;
|
|
else
|
|
$output.= '<span style="'.$style.'">'.$name.'</span>';
|
|
}
|
|
if ( $replace_space ) return replace_space( $output );
|
|
else return $output;
|
|
}
|
|
|
|
// 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'].'&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' or $page['cat'] == 'best_rated' )
|
|
{
|
|
// we must not show pictures of a forbidden category
|
|
if ( $user['forbidden_categories'] != '' )
|
|
{
|
|
$query.= ' AND category_id NOT IN ';
|
|
$query.= '('.$user['forbidden_categories'].')';
|
|
}
|
|
}
|
|
// search result
|
|
if ( $page['cat'] == 'search' )
|
|
{
|
|
$page['title'] = $lang['search_result'];
|
|
if ( $calling_page == 'picture' )
|
|
{
|
|
$page['title'].= ' : <span style="font-style:italic;">';
|
|
$page['title'].= $_GET['search']."</span>";
|
|
}
|
|
|
|
$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'].= ' )';
|
|
$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'];
|
|
}
|
|
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 '.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
|
|
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 '.PREFIX_TABLE.'categories';
|
|
$query.= ' WHERE id_uppercat = '.$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;
|
|
}
|
|
?>
|