remove metadata for a virtual server

Refs #375

ui/static/synnefo.js

@@ -702,6 +702,29 @@ function get_metadata(serverID) {
     return false;
 }
 
+// delete server metadata action
+function delete_server_metadata(serverID, meta_key) {
+    $.ajax({
+        url: API_URL + '/servers/' + serverID + '/meta/' + meta_key,
+        type: "DELETE",
+        //async: false,
+        dataType: "json",
+        timeout: TIMEOUT,
+        error: function(jqXHR, textStatus, errorThrown) { 
+            try {
+				ajax_error(jqXHR.status, undefined, 'Delete metadata', jqXHR.responseText);
+			} catch (err) {
+				ajax_error(err);
+			}
+        },
+        success: function(data, textStatus, jqXHR) {
+            get_metadata(serverID);
+        }
+    });
+    return false;
+}
+
+
 // show the welcome screen
 function showWelcome() {
     $("#view-select").fadeOut("fast");

ui/templates/machines.html

@@ -625,10 +625,11 @@ $('#editor-1.meta-modal button.create').click( function(){
 });
 
 // intercept click on remove button in metadata edit dialog
-$('#editor-1.meta-modal button.create').click( function(){
-    // ajax call to delete selected metadata key-value pair
-    // if successful remove it from the overlay
-    // TODO
+$('#editor-1.meta-modal button.remove').live('click', function() {    
+    var serverID = $(this).parent().parent().parent().parent().children("h3").attr('id');
+    var meta_key = $(this).parent().find("label").text();
+    delete_server_metadata(serverID, meta_key);
+    return false;
 });
 
 // intercept click on edit button in metadata edit dialog