Adds user and message to flagaction to display in FE.

graph/resolvers/flag_action.js

@@ -1,9 +1,15 @@
 const FlagAction = {
 
   // Stored in the metadata, extract and return.
-  reason({metadata: {reason}}) {
-    return reason;
-  }
+  message({metadata: {message}}) {
+    return message;
+  },
+  reason({group_id}) {
+    return group_id;
+  },
+  user({user_id}, _, {loaders: {Users}}) {
+    return Users.getByID.load(user_id);
+  },
 };
 
 module.exports = FlagAction;

graph/typeDefs.graphql

@@ -31,7 +31,7 @@ type User {
   username: String!
 
   # Action summaries against the user.
-  action_summaries: [FlagActionSummary]
+  action_summaries: [ActionSummary]
 
   # Actions completed on the parent.
   actions: [Action]