fix: sql query on tags when there are no images

fix: cat_name was not passed to make_index_url in category_subcats.inc.php 
(subcatify was working)

improvement: added some rel="nofollow"

git-svn-id: http://piwigo.org/svn/branches/branch-1_6@1134 68402e56-0260-453c-a942-63ccdbb3a9ee

2 files changed, 18 insertions, 14 deletions

diff --git a/include/category_subcats.inc.php b/include/category_subcats.inc.php
index f8eb27f9c..08c883d78 100644
--- a/include/category_subcats.inc.php
+++ b/include/category_subcats.inc.php
@@ -132,7 +132,7 @@ SELECT id, path, tn_ext
     $thumbnail_src_of[$row['id']] =
       get_thumbnail_src($row['path'], @$row['tn_ext']);
   }
-  
+
   if ($conf['subcatify'])
   {
     $template->set_filenames(
@@ -142,7 +142,7 @@ SELECT id, path, tn_ext
       );
 
     $template->assign_block_vars('categories', array());
-    
+
     foreach ($categories as $category)
     {
       $template->assign_block_vars(
@@ -152,7 +152,7 @@ SELECT id, path, tn_ext
           'ALT'   => $category['name'],
           'TITLE' => $lang['hint_category'],
           'ICON'  => get_icon(@$category['date_last']),
-          
+
           'URL' => make_index_url(
             array(
               'category' => $category['category'],
@@ -165,7 +165,7 @@ SELECT id, path, tn_ext
           )
         );
     }
-  
+
     $template->assign_var_from_handle('CATEGORIES', 'mainpage_categories');
   }
   else
@@ -175,7 +175,7 @@ SELECT id, path, tn_ext
     $template->assign_block_vars('thumbnails.line', array());
     // current row displayed
     $row_number = 0;
-    
+
     foreach ($categories as $category)
     {
       $template->assign_block_vars(
@@ -185,10 +185,11 @@ SELECT id, path, tn_ext
           'IMAGE_ALT'   => $category['name'],
           'IMAGE_TITLE' => $lang['hint_category'],
           'IMAGE_TS'    => get_icon(@$category['date_last']),
-          
+
           'U_IMG_LINK'  => make_index_url(
             array(
               'category' => $category['category'],
+              'cat_name' => $category['name'],
               )
             ),
           'CLASS'       => 'thumbCat',
@@ -201,7 +202,7 @@ SELECT id, path, tn_ext
           'NAME' => $category['name']
           )
         );
-      
+
       // create a new line ?
       if (++$row_number == $user['nb_image_line'])
       {
diff --git a/include/functions_tag.inc.php b/include/functions_tag.inc.php
index 5dd4884f4..3e3934669 100644
--- a/include/functions_tag.inc.php
+++ b/include/functions_tag.inc.php
@@ -54,7 +54,10 @@ SELECT DISTINCT image_id
   WHERE category_id NOT IN ('.implode(',', $forbidden_categories).')
 ;';
     $image_ids = array_from_query($images_query, 'image_id');
-
+    if ( empty($image_ids) )
+    {
+      return array();
+    }
     $tags_query.= '
   WHERE image_id IN ('.
       wordwrap(
@@ -63,13 +66,13 @@ SELECT DISTINCT image_id
         "\n"
         ).')';
   }
-  
+
   $tags_query.= '
   GROUP BY tag_id
 ;';
 
   $result = pwg_query($tags_query);
-  
+
   $tags = array();
 
   while ($row = mysql_fetch_array($result))
@@ -93,7 +96,7 @@ SELECT id AS tag_id, name, url_name
   ORDER BY name
 ;';
   $result = pwg_query($query);
-  
+
   $tags = array();
 
   while ($row = mysql_fetch_array($result))
@@ -123,7 +126,7 @@ function add_level_to_tags($tags)
   {
     return $tags;
   }
-  
+
   $total_count = 0;
 
   foreach ($tags as $tag)
@@ -146,7 +149,7 @@ function add_level_to_tags($tags)
   foreach (array_keys($tags) as $k)
   {
     $tags[$k]['level'] = 1;
-    
+
     // based on threshold, determine current tag level
     for ($i = $conf['tags_levels'] - 1; $i >= 1; $i--)
     {
@@ -177,7 +180,7 @@ function get_image_ids_for_tags($tag_ids, $mode = 'AND')
     {
       // strategy is to list images associated to each tag
       $tag_images = array();
-      
+
       foreach ($tag_ids as $tag_id)
       {
         $query = '