fix(calendar): persist settings on PUT/POST

Accept calendar.settings (e.g. week_patterns) in validate_update
and convert_field; apply on create like tags. Unblocks Front#42
pattern save which previously got 200 with empty settings.

src/handlers/handler_calendars.erl

@@ -117,12 +117,21 @@ create_calendar(Req) ->
               Confirmation = parse_confirmation(maps:get(<<"confirmation">>, Decoded, <<"manual">>)),
               Tags         = maps:get(<<"tags">>, Decoded, []),
               Type         = parse_type(maps:get(<<"type">>, Decoded, <<"personal">>)),
+              Settings = maps:get(<<"settings">>, Decoded, undefined),
               case logic_calendar:create_calendar(UserId, Title, Description, Confirmation, Type) of
                 {ok, Calendar} ->
-                  Updated = case Tags of
+                  Extra0 = case Tags of
+                    [] -> [];
+                    _ -> [{tags, Tags}]
+                  end,
+                  Extra = case Settings of
+                    S when is_map(S) -> [{settings, S} | Extra0];
+                    _ -> Extra0
+                  end,
+                  Updated = case Extra of
                     [] -> Calendar;
                     _ ->
-                      case logic_calendar:update_calendar(UserId, Calendar#calendar.id, [{tags, Tags}]) of
+                      case logic_calendar:update_calendar(UserId, Calendar#calendar.id, Extra) of
                         {ok, C2} -> C2;
                         _ -> Calendar
                       end