only fetch link ID if link template requests it

Chris Santero · Chris Santero · commit 3cc0280e2111 · 2015-03-14T11:44:54.000-04:00
diff --git a/JSONAPI/Json/JsonApiFormatter.cs b/JSONAPI/Json/JsonApiFormatter.cs
@@ -319,8 +319,9 @@ protected void Serialize(object value, Stream writeStream, JsonWriter writer, Js
                             break;
                         case SerializeAsOptions.Link:
                             if (lt == null) throw new JsonSerializationException("A property was decorated with SerializeAs(SerializeAsOptions.Link) but no LinkTemplate attribute was provided.");
-                            //TODO: Check for "{0}" in linkTemplate and (only) if it's there, get the Ids of all objects and "implode" them.
-                            string href = String.Format(lt, null, GetIdFor(value));
+
+                            string linkId = lt.Contains("{0}") ? GetIdFor(value) : null;
+                            string href = String.Format(lt, null, linkId);
                             //writer.WritePropertyName(ContractResolver._modelManager.GetJsonKeyForProperty(prop));
                             //TODO: Support ids and type properties in "link" object
                             writer.WriteStartObject();
