Initial revision

git-svn-id: http://piwigo.org/svn/trunk@2 68402e56-0260-453c-a942-63ccdbb3a9ee

1 files changed, 481 insertions, 0 deletions

diff --git a/include/functions_category.inc.php b/include/functions_category.inc.php
new file mode 100644
index 000000000..051e89f56
--- /dev/null
+++ b/include/functions_category.inc.php
@@ -0,0 +1,481 @@
+<?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 )
+{
+  global $prefixeTable;
+                
+  $restricted_cat = array();
+  $i = 0;
+                
+  $query = "select id";
+  $query.= " from $prefixeTable"."categories";
+  $query.= " where id_uppercat = $cat_id;";
+  $result = mysql_query( $query );
+  while ( $row = mysql_fetch_array( $result ) )
+  {
+    $restricted_cat[$i++] = $row['id'];
+    $sub_restricted_cat = get_subcats_id( $row['id'] );
+    for ( $j = 0; $j < sizeof( $sub_restricted_cat ); $j++ )
+    {
+      $restricted_cat[$i++] = $sub_restricted_cat[$j];
+    }
+  }
+                
+  return $restricted_cat;
+}
+
+function check_restrictions( $category_id )
+{
+  global $user,$lang,$prefixeTable;
+
+  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 $page,$prefixeTable;
+  unset( $page['cat'] );
+  if ( isset( $cat ) )
+  {
+    if ( is_numeric( $cat ) )
+    {
+      $query = "select id from $prefixeTable"."categories where id = $cat;";
+      $result = mysql_query( $query );
+      if ( mysql_num_rows( $result ) != 0 )
+      {
+        $page['cat'] = $cat;
+      }
+    }
+    if ( $cat == 'fav' or $cat == 'search' or $cat == 'most_visited'
+         or $cat == 'best_rated' or $cat == 'recent' )
+    {
+      $page['cat'] = $cat;
+    }
+  }
+}
+
+function display_cat( $id_uppercat, $indent, $restriction, $tab_expand )
+{
+  global $prefixeTable,$user,$lang,$conf,$page,$vtp,$handle;
+  
+  $query = 'select name,id,date_dernier,nb_images,dir';
+  $query.= ' from '.$prefixeTable.'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 catégorie n'a pas de sous catégorie
+      // ou que l'on doit développer toutes les catégories par défaut
+      // alors on utilise l'expand par défaut
+      if ( $nb_subcats == 0 or $user['expand'] == "true" )
+      {
+        $expand = $page['expand'];
+      }
+      // si la catégorie n'est pas dans les catégories à développer
+      // alors on l'ajoute aux catégories à développer
+      else if ( !in_array( $row['id'], $tab_expand ) )
+      {
+        $expand = implode( ",", $tab_expand );
+        if ( strlen( $expand ) > 0 )
+        {
+          $expand.= ",";
+        }
+        $expand.= $row['id'];
+      }
+      // si la catégorie est déjà dans les catégories à développer
+      // alors on la retire des catégories à développer
+      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'];
+      }
+      $lien_cat = add_session_id_to_url( $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 $prefixeTable,$user;
+                
+  $query = 'select count(*) as count';
+  $query.= ' from '.$prefixeTable.'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 )
+{
+  global $prefixeTable;
+                
+  $total = 0;
+                
+  $query = 'select id,nb_images';
+  $query.= ' from '.$prefixeTable.'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 )
+{
+  global $prefixeTable;
+                
+  $cat = array();
+  $cat['name'] = array();
+                
+  $query = 'select nb_images,id_uppercat,comment,site_id,galleries_url,dir';
+  $query.= ' from '.$prefixeTable.'categories as a';
+  $query.= ', '.$prefixeTable.'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';
+    $query.= ' from '.$prefixeTable.'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 $prefixeTable,$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
+    {
+      $query = '';
+      // 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>";
+        }
+        $page['where'] = " where ( file like '%".$_GET['search']."%'";
+        $page['where'].= " or name like '%".$_GET['search']."%'";
+        $page['where'].= " or comment like '%".$_GET['search']."%' )";
+
+        $query = 'select count(*) as nb_total_images';
+        $query.= ' from '.$prefixeTable.'images';
+        $query.= $page['where'];
+        $query.= ';';
+
+        $url.= '&amp;search='.$_GET['search'];
+      }
+      // favorites displaying
+      else if ( $page['cat'] == 'fav' )
+      {
+        $page['title'] = $lang['favorites'];
+
+        $page['where'] = ', '.$prefixeTable.'favorites';
+        $page['where'].= ' where user_id = '.$user['id'];
+        $page['where'].= ' and image_id = id';
+      
+        $query = 'select count(*) as nb_total_images';
+        $query.= ' from '.$prefixeTable.'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 )."'";
+
+        $query = 'select count(*) as nb_total_images';
+        $query.= ' from '.$prefixeTable.'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';
+        $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 ( $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_cat = get_all_restrictions( $user['id'], $user['status'] );
+        if ( sizeof( $restricted_cat ) > 0 )
+        {
+          for ( $i = 0; $i < sizeof( $restricted_cat ); $i++ )
+          {
+            $page['where'].= ' and cat_id != '.$restricted_cat[$i];
+          }
+        }
+      }
+    }
+    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'];
+  }
+}
+?>
\ No newline at end of file