[CORD-1338] Inline navigation for related models

Change-Id: I58ff4a4675d1ce1140fe162f1f8360f2dc9a6527
diff --git a/src/app/datasources/rest/modeldefs.rest.ts b/src/app/datasources/rest/modeldefs.rest.ts
index fdb4b99..0af00ff 100644
--- a/src/app/datasources/rest/modeldefs.rest.ts
+++ b/src/app/datasources/rest/modeldefs.rest.ts
@@ -16,6 +16,7 @@
 export interface IXosModelDefsRelation {
   model: string; // model name
   type: string; // relation type
+  on_field: string; // the field that is containing the relation
 }
 
 export interface IXosModeldef {