*
* *
***************************************************************************
***************************************************************************
* *
* 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 get_subcats_id( $cat_id )
{
$restricted_cats = array();
$query = 'SELECT id';
$query.= ' FROM '.PREFIX_TABLE.'categories';
$query.= ' WHERE id_uppercat = '.$cat_id;
$query.= ';';
$result = mysql_query( $query );
while ( $row = mysql_fetch_array( $result ) )
{
array_push( $restricted_cats, $row['id'] );
$sub_restricted_cats = get_subcats_id( $row['id'] );
foreach ( $sub_restricted_cats as $sub_restricted_cat ) {
array_push( $restricted_cats, $sub_restricted_cat );
}
}
return $restricted_cats;
}
function check_restrictions( $category_id )
{
global $user,$lang;
if ( is_user_allowed( $category_id, $user['restrictions'] ) > 0 )
{
echo '';
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'] ) )
{
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_plain_structure()
{
$infos = array( 'name','id','date_last','nb_images','dir','id_uppercat',
'rank');
$query = 'SELECT ';
foreach ( $infos as $i => $info ) {
if ( $i > 0 ) $query.= ',';
$query.= $info;
}
$query.= ' FROM '.PREFIX_TABLE.'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 ) {
$category[$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_structure( $id_uppercat, $restrictions )
{
global $page;
$structure = array();
$ids = get_subcat_ids( $id_uppercat );
foreach ( $ids as $id ) {
if ( !in_array( $id, $restrictions ) )
{
$category = $page['plain_structure'][$id];
$category['subcats'] = create_structure( $id, $restrictions );
array_push( $structure, $category );
}
}
return $structure;
}
function get_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 : the last date, should the category be expanded in the menu ?,
// the associated expand string "48,14,54"
//
// 1. last date
// for each category of the structure, we have to find the most recent
// subcat so that the parent cat has the same last_date info.
// For example : we have :
// > pets (2003.02.15)
// > dogs (2003.06.14)
// > rex (2003.06.18)
// > toby (2003.06.13)
// > kitten (2003.07.05)
// We finally want to have :
// > pets (2003.07.05) <- changed to pets > kitten last date
// > dogs (2003.06.18) <- changed to pets > dogs > rex last date
// > rex (2003.06.18)
// > toby (2003.06.13)
// > kitten (2003.07.05)
//
// 2. 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.
//
// 3. 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 last date of the category
$last_date = search_last_date( $category );
$category['date_last'] = $last_date;
// 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 ( count( $category['subcats'] ) > 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;
}
// search_last_date searchs the last date for a given category. If we take
// back the example given for update_last_dates, we should have :
// search_last_date( pets ) --> 2003.07.05
// search_last_date( pets > dogs ) --> 2003.06.18
// and so on
function search_last_date( $category )
{
$date_last = $category['date_last'];
foreach ( $category['subcats'] as $subcat ) {
$subcat_date_last = search_last_date( $subcat );
if ( $subcat_date_last > $date_last )
{
$date_last = $subcat_date_last;
}
}
return $date_last;
}
// 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 )
{
$total = 0;
foreach ( $categories as $category ) {
$total+= $category['nb_images'];
$total+= count_images( $category['subcats'] );
}
return $total;
}
// variables :
// $cat['comment']
// $cat['dir']
// $cat['last_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 )
{
$cat = array();
$cat['name'] = array();
$query = 'SELECT nb_images,id_uppercat,comment,site_id,galleries_url,dir';
$query.= ',date_last,uploadable';
$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['last_dir'] = $row['dir'];
$cat['date_last'] = $row['date_last'];
$cat['uploadable'] = get_boolean( $row['uploadable'] );
$galleries_url = $row['galleries_url'];
$cat['dir'] = "";
$i = 0;
$is_root = false;
$row['id_uppercat'] = $id;
while ( !$is_root )
{
$query = 'SELECT name,dir,id_uppercat';
$query.= ' FROM '.PREFIX_TABLE.'categories';
$query.= ' WHERE id = '.$row['id_uppercat'].';';
$row = mysql_fetch_array( mysql_query( $query ) );
$cat['dir'] = $row['dir'].'/'.$cat['dir'];
if ( $row['name'] == "" )
{
$cat['name'][$i] = str_replace( "_", " ", $row['dir'] );
}
else
{
$cat['name'][$i] = $row['name'];
}
if ( $row['id_uppercat'] == "" )
{
$is_root = true;
}
$i++;
}
$cat['local_dir'] = substr( $cat['dir'], 0 , strlen( $cat['dir'] ) - 1 );
$cat['dir'] = $galleries_url.$cat['dir'];
return $cat;
}
// 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 )
{
$output = "";
for ( $i = sizeof( $array_cat_names ) - 1; $i >= 0; $i-- )
{
if ( $i != sizeof( $array_cat_names ) - 1 )
{
$output.= $separation;
}
if ( $i != 0 )
{
$output.= $array_cat_names[$i];
}
else
{
if ( $style != "" )
{
$output.= '';
}
$output.= $array_cat_names[$i];
if ( $style != "" )
{
$output.= "";
}
}
}
return replace_space( $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' )
{
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['title'] = get_cat_display_name( $page['cat_name'], ' - ', '' );
$page['where'] = ' WHERE cat_id = '.$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
$restricted_cats = get_all_restrictions( $user['id'],$user['status'] );
foreach ( $restricted_cats as $restricted_cat ) {
$where_append.= ' AND cat_id != '.$restricted_cat;
}
}
// 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'].= ' )';
$page['where'].= $where_append;
$query = 'SELECT COUNT(*) AS nb_total_images';
$query.= ' FROM '.PREFIX_TABLE.'images';
$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';
$page['where'].= ' WHERE user_id = '.$user['id'];
$page['where'].= ' AND 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(*) AS nb_total_images';
$query.= ' FROM '.PREFIX_TABLE.'images';
$query.= $page['where'];
$query.= ';';
}
// most visited pictures
else if ( $page['cat'] == 'most_visited' )
{
$page['title'] = $conf['top_number'].' '.$lang['most_visited_cat'];
$page['where'] = ' WHERE cat_id != -1'.$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;
}
?>