Posts
--------------------------------
| id | title         | user_id |
------------------------------
| 1  | Say hello     | 1       |
--------------------------------
| 2  | Amazing world | 2       |
--------------------------------

Users
--------------
| id | name  |
--------------
| 1  | Alice |
--------------
| 2  | Bob   |
--------------

Votes
--------------------------------------
| id | user_id | post_id | vote_type |
--------------------------------------
| 1  | 1       | 2       | 1         |
--------------------------------------

current_user.id = 1

How to get all posts of all users and vote_type for post of current_user

Need posts
---------------------------------------------------------
| id | title         | user_id | current_user_vote_type |
---------------------------------------------------------
| 1  | Say hello     | 1       | nil                    |
---------------------------------------------------------
| 2  | Amazing world | 2       | 1                      |
---------------------------------------------------------