feat: user API голосования за отзывы (like/dislike). Refs EventHub/EventHubBack#47

src/handlers/handler_utils.erl

@@ -21,6 +21,7 @@
   event_to_json/1,
   user_to_json/1,
   review_to_json/1,
+  review_to_json/2,
   report_to_json/1,
   ticket_to_json/1,
   calendar_to_json/1,
@@ -359,9 +360,14 @@ user_to_json(User) ->
     updated_at      => datetime_to_iso8601(User#user.updated_at)
   }.
 
-%% @doc Преобразует #review{} в JSON-карту.
+%% @doc Преобразует #review{} в JSON-карту (без my_vote).
 -spec review_to_json(#review{}) -> map().
 review_to_json(Review) ->
+  review_to_json(Review, null).
+
+%% @doc Преобразует #review{} в JSON с голосом текущего пользователя.
+-spec review_to_json(#review{}, like | dislike | null) -> map().
+review_to_json(Review, MyVote) ->
   #{
     id          => Review#review.id,
     user_id     => Review#review.user_id,
@@ -373,10 +379,15 @@ review_to_json(Review) ->
     reason      => Review#review.reason,
     likes       => Review#review.likes,
     dislikes    => Review#review.dislikes,
+    my_vote     => my_vote_json(MyVote),
     created_at  => datetime_to_iso8601(Review#review.created_at),
     updated_at  => datetime_to_iso8601(Review#review.updated_at)
   }.
 
+my_vote_json(like) -> <<"like">>;
+my_vote_json(dislike) -> <<"dislike">>;
+my_vote_json(null) -> null.
+
 %% @doc Преобразует #report{} в JSON-карту.
 -spec report_to_json(#report{}) -> map().
 report_to_json(Report) ->