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Piwigo/include/functions_category.inc.php
z0rglub 0ec91d8b48 *** empty log message *** 
git-svn-id: http://piwigo.org/svn/trunk@21 68402e56-0260-453c-a942-63ccdbb3a9ee
2003-07-01 09:27:20 +00:00

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PHP
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<?php
/***************************************************************************
* functions_category.inc.php *
* -------------------- *
* application : PhpWebGallery 1.3 *
* author : Pierrick LE GALL <pierrick@z0rglub.com> *
* *
***************************************************************************
***************************************************************************
* *
* 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, $user['restrictions'] ) > 0 )
{
echo '<div style="text-align:center;">'.$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 ( 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 display_cat( $id_uppercat, $indent, $restriction, $tab_expand )
{
global $user,$lang,$conf,$page,$vtp,$handle;
$query = 'select name,id,date_dernier,nb_images,dir';
$query.= ' from '.PREFIX_TABLE.'categories';
$query.= ' where id_uppercat';
if ( $id_uppercat == "" )
{
$query.= ' is NULL';
}
else
{
$query.= ' = '.$id_uppercat;
}
$query.= ' order by rank asc;';
$result = mysql_query( $query );
while ( $row = mysql_fetch_array( $result ) )
{
if ( !in_array( $row['id'], $restriction ) )
{
$nb_subcats = get_nb_subcats( $row['id'] );
$expand = "";
// si la cat<61>gorie n'a pas de sous cat<61>gorie
// ou que l'on doit d<>velopper toutes les cat<61>gories par d<>faut
// alors on utilise l'expand par d<>faut
if ( $nb_subcats == 0 or $user['expand'] == "true" )
{
$expand = $page['expand'];
}
// si la cat<61>gorie n'est pas dans les cat<61>gories <20> d<>velopper
// alors on l'ajoute aux cat<61>gories <20> d<>velopper
else if ( !in_array( $row['id'], $tab_expand ) )
{
$expand = implode( ",", $tab_expand );
if ( strlen( $expand ) > 0 )
{
$expand.= ",";
}
$expand.= $row['id'];
}
// si la cat<61>gorie est d<>j<EFBFBD> dans les cat<61>gories <20> d<>velopper
// alors on la retire des cat<61>gories <20> d<>velopper
else
{
$expand = array_remove( $tab_expand, $row['id'] );
}
$url = "./category.php?cat=".$page['cat']."&amp;expand=$expand";
if ( $page['cat'] == 'search' )
{
$url.= "&amp;search=".$_GET['search'].'&amp;mode='.$_GET['mode'];
}
$lien_cat = add_session_id( $url );
if ( $row['name'] == "" )
{
$name = str_replace( "_", " ", $row['dir'] );
}
else
{
$name = $row['name'];
}
$vtp->addSession( $handle, 'category' );
$vtp->setVar( $handle, 'category.indent', $indent );
if ( $user['expand'] == "true" or $nb_subcats == 0 )
{
$vtp->addSession( $handle, 'bullet_wo_link' );
$vtp->setVar( $handle, 'bullet_wo_link.bullet_url',
$user['lien_collapsed'] );
$vtp->setVar( $handle, 'bullet_wo_link.bullet_alt', '&gt;' );
$vtp->closeSession( $handle, 'bullet_wo_link' );
}
else
{
$vtp->addSession( $handle, 'bullet_w_link' );
$vtp->setVar( $handle, 'bullet_w_link.bullet_link', $lien_cat );
$vtp->setVar( $handle, 'bullet_w_link.bullet_alt', '&gt;' );
if ( in_array( $row['id'], $tab_expand ) )
{
$vtp->setVar( $handle, 'bullet_w_link.bullet_url',
$user['lien_expanded'] );
}
else
{
$vtp->setVar( $handle, 'bullet_w_link.bullet_url',
$user['lien_collapsed'] );
}
$vtp->closeSession( $handle, 'bullet_w_link' );
}
$vtp->setVar( $handle, 'category.link_url',
add_session_id( './category.php?cat='.
$row['id'].'&amp;expand='.$expand ) );
$vtp->setVar( $handle, 'category.link_name', $name );
if ( $id_uppercat == "" )
{
$vtp->setVar( $handle, 'category.name_style', 'font-weight:bold;' );
}
if ( $nb_subcats > 0 )
{
$vtp->addSession( $handle, 'subcat' );
$vtp->setVar( $handle, 'subcat.nb_subcats', $nb_subcats );
$vtp->closeSession( $handle, 'subcat' );
}
$vtp->setVar( $handle, 'category.total_cat', $row['nb_images'] );
$date_dispo = explode( "-", $row['date_dernier'] );
$date_cat = mktime( 0, 0, 0, $date_dispo[1], $date_dispo[2],
$date_dispo[0] );
$vtp->setVar( $handle, 'category.cat_icon', get_icon( $date_cat ) );
$vtp->closeSession( $handle, 'category' );
if ( in_array( $row['id'], $tab_expand ) or $user['expand'] == "true" )
{
display_cat( $row['id'], $indent.'&nbsp;&nbsp;&nbsp;&nbsp;',
$restriction, $tab_expand );
}
}
}
}
function get_nb_subcats( $id )
{
global $user;
$query = 'select count(*) as count';
$query.= ' from '.PREFIX_TABLE.'categories';
$query.= ' where id_uppercat = '.$id;
for ( $i = 0; $i < sizeof( $user['restrictions'] ); $i++ )
{
$query.= " and id != ".$user['restrictions'][$i];
}
$query.= ';';
$result = mysql_query( $query );
$row = mysql_fetch_array( $result );
return $row['count'];
}
function get_total_image( $id, $restriction )
{
$total = 0;
$query = 'select id,nb_images';
$query.= ' from '.PREFIX_TABLE.'categories';
$query.= ' where id_uppercat';
if ( !is_numeric( $id ) )
{
$query.= ' is NULL';
}
else
{
$query.= ' = '.$id;
}
$query.= ";";
$result = mysql_query( $query );
while ( $row = mysql_fetch_array( $result ) )
{
if ( !in_array( $row['id'], $restriction ) )
{
$total+= $row['nb_images'];
$total+= get_total_image( $row['id'], $restriction );
}
}
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.= ' 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'];
$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 != "" )
{
$output.= '<span style="'.$style.'">';
}
$output.= $array_cat_names[$i];
if ( $style != "" )
{
$output.= "</span>";
}
}
}
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'].'&amp;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['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'].= ' : <span style="font-style:italic;">';
$page['title'].= $_GET['search']."</span>";
}
$page['where'] = ' WHERE (';
$fields = array( 'file', 'name', 'comment' );
$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.= ';';
$url.= '&amp;search='.$_GET['search'].'&amp;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_sub_cat_ids returns an array composing of the infos of the
// direct sub-categories of the given uppercat id. Each of these infos is
// associated to the first found non empty category id. eg :
//
// - catname [cat_id]
// - cat1 [1] -> given uppercat
// - cat1.1 [2] (empty)
// - cat1.1.1 [5] (empty)
// - cat1.1.2 [6]
// - cat1.2 [3]
// - cat1.3 [4]
//
// get_non_empty_sub_cat_ids will return :
// $cats[0]['id'] = 2;
// $cats[0]['name'] = '';
// $cats[0]['dir'] = 'cat1';
// $cats[0]['date_dernier'] = '2003-05-17';
// $cats[0]['non_empty_cat'] = 6;
//
// $cats[1]['id'] = 3;
// $cats[1]['non_empty_cat'] = 3;
//
// $cats[1]['id'] = 4;
// $cats[1]['non_empty_cat'] = 4;
function get_non_empty_sub_cat_ids( $id_uppercat )
{
global $user;
$cats = array();
$query = 'SELECT id,name,dir,date_dernier,nb_images';
$query.= ' FROM '.PREFIX_TABLE.'categories';
$query.= ' WHERE id_uppercat = '.$id_uppercat;
// we must not show pictures of a forbidden category
$restricted_cats = get_all_restrictions( $user['id'],$user['status'] );
foreach ( $restricted_cats 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'] ) )
{
$temp_cat = array(
'id' => $row['id'],
'name' => $row['name'],
'dir' => $row['dir'],
'date_dernier' => $row['date_dernier'],
'non_empty_cat' => $non_empty_cat );
array_push( $cats, $temp_cat );
}
}
return $cats;
}
// 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
$restricted_cats = get_all_restrictions( $user['id'],$user['status'] );
foreach ( $restricted_cats 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;
}
?>
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