1 files changed, 97 insertions, 4 deletions

diff --git a/admin/include/functions.php b/admin/include/functions.php
index 4c56dc20f..ad493f877 100644
--- a/admin/include/functions.php
+++ b/admin/include/functions.php
@@ -606,7 +606,7 @@ function mass_updates($tablename, $dbfields, $datas)
   UPDATE '.$tablename.'
     SET ';
         $is_first = true;
-        foreach ($dbfields['update'] as $num => $key)
+        foreach ($dbfields['update'] as $key)
         {
           if (!$is_first)
           {
@@ -625,13 +625,16 @@ function mass_updates($tablename, $dbfields, $datas)
         }
         $query.= '
     WHERE ';
-        foreach ($dbfields['primary'] as $num => $key)
+
+        $is_first = true;
+        foreach ($dbfields['primary'] as $key)
         {
-          if ($num > 1)
+          if (!$is_first)
           {
             $query.= ' AND ';
           }
           $query.= $key.' = \''.$data[$key].'\'';
+          $is_first = false;
         }
         $query.= '
   ;';
@@ -1902,6 +1905,97 @@ SELECT image_id
 }
 
 /**
+ * Create an XML file with PhpWebGallery informations about a list of
+ * pictures.
+ *
+ * The goal of the export feature is to make easier the reading of
+ * informations related to pictures outside of PhpWebGallery.
+ *
+ * @param array image_ids
+ */
+function export_pwg_data($image_ids)
+{
+  global $conf;
+
+  if (count($image_ids) == 0)
+  {
+    return;
+  }
+
+  $fp = fopen($conf['export_file'], 'w');
+  $xml_string = '<export>'."\n";
+
+  $query = '
+SELECT tag_id,
+       image_id
+  FROM '.IMAGE_TAG_TABLE.'
+  WHERE image_id IN ('.implode(',', $image_ids).')
+;';
+  $result = pwg_query($query);
+  $tags_of = array();
+  $all_tag_ids = array();
+  $tag_name_of = array();
+
+  if (mysql_num_rows($result))
+  {
+      while ($row = mysql_fetch_array($result))
+      {
+        array_push($all_tag_ids, $row['tag_id']);
+        
+        if (!isset($tags_of[ $row['image_id'] ])) {
+          $tags_of[ $row['image_id'] ] = array();
+        }
+        
+        array_push(
+          $tags_of[ $row['image_id'] ],
+          $row['tag_id']
+          );
+      }
+
+      $all_tag_ids = array_unique($all_tag_ids);
+
+      $query = '
+SELECT id,
+       name
+  FROM '.TAGS_TABLE.'
+  WHERE id IN ('.implode(',', $all_tag_ids).')
+;';
+      $result = pwg_query($query);
+
+      while ($row = mysql_fetch_array($result))
+      {
+        $tag_name_of[ $row['id'] ] = $row['name'];
+      }
+  }
+
+  $query = '
+SELECT id,
+       path
+  FROM '.IMAGES_TABLE.'
+  WHERE id IN ('.implode(',', $image_ids).')
+;';
+  $result = pwg_query($query);
+
+  while ($row = mysql_fetch_array($result))
+  {
+    $xml_string.= "  <photo>\n";
+    $xml_string.= "    <id>".$row['id']."</id>\n";
+    $xml_string.= "    <path>".$row['path']."</path>\n";
+
+    foreach ($tags_of[ $row['id'] ] as $tag_id)
+    {
+      $xml_string.= "    <tag>".$tag_name_of[$tag_id]."</tag>\n";
+    }
+    
+    $xml_string.= "  </photo>\n";
+  }
+  
+  $xml_string.= '</export>';
+  fwrite($fp, $xml_string);
+  fclose($fp);
+}
+
+/**
  * Check configuration and add notes on problem
  *
  * @param void
@@ -1937,7 +2031,6 @@ function check_conf()
       );
   }
 }
-
 /**
  * Refer main PhpWebGallery URLs (currently PHPWG_DOMAIN domain)
  *