oops, missing file

diff --git a/planetlab/includes/plc_visibletags.php b/planetlab/includes/plc_visibletags.php
new file mode 100644 (file)
index 0000000..a0382cc
--- /dev/null
+++ b/planetlab/includes/plc_visibletags.php
@@ -0,0 +1,84 @@
+<?php
+
+  // $Id: plc_functions.php 15734 2009-11-13 10:52:31Z thierry $
+
+  // utility function for displaying extra columns based on tags and categories
+  // expected type is e.g. 'node' 
+
+class VisibleTags {
+  var $api;
+  var $type;
+  
+  function VisibleTags ($api,$type) {
+    $this->api=$api;
+    $this->type=$type;
+    $this->columns=NULL;
+  }
+  
+  // returns an ordered set of columns - compute only once
+  function columns () {
+    # if cached
+    if ($this->columns != NULL) 
+      return $this->columns;
+
+    // scan tag types to find relevant additional columns
+    $tag_types = $this->api->GetTagTypes(array('category'=>"$type*/ui*"));
+    
+    $columns = array();
+    foreach ($tag_types as $tag_type) {
+      $tagname=$tag_type['tagname'];
+      $column=array();
+      $column['tagname']=$tagname;
+      // defaults
+      $column['header']=$tagname;
+      $column['rank']=$tagname;
+      $column['type']='string';
+      $column['description']=$tag_type['description'];
+      // split category and parse any setting
+      $category_tokens=split('/',$tag_type['category']);
+      foreach ($category_tokens as $token) {
+       $assign=split('=',$token);
+       if (count($assign)==2) 
+         $column[$assign[0]]=$assign[1];
+      }
+      $columns []= $column;
+    }
+    
+    // sort upon 'rank'
+    usort ($columns, create_function('$col1,$col2','return strcmp($col1["rank"],$col2["rank"]);'));
+
+    # cache for next time
+    $this->columns=$columns;
+//    plc_debug('columns',$columns);
+    return $columns;
+  }
+
+  // extract tagname
+  function column_names () {
+    return array_map(create_function('$tt','return $tt["tagname"];'),$this->columns());
+  }
+  
+  // to add with array_merge to the headers part of the Plekit Table
+  function headers () {
+    $headers=array();
+    $columns=$this->columns();
+    foreach ($columns as $column)
+      if ($column['header'] == $column['tagname']) 
+       $headers[$column['header']]=$column['type'];
+      else
+       $headers[$column['header']]=array('type'=>$column['type'],'title'=>$column['description']);
+    return $headers;
+  }
+
+  // to add with array_merge to the notes part of the Plekit Table
+  function notes () {
+    $notes=array();
+    $columns=$this->columns();
+    foreach ($columns as $column)
+      if ($column['header'] != $column['tagname']) 
+       $notes []= strtoupper($column['header']) . ' = ' . $column['description'];
+    return $notes;
+  }
+
+}
+?>