[32] pry(main)> PostFavorite.where('user_id <> 20').pluck(:post_id).include?(26)
   (0.5ms)  SELECT "post_favorites"."post_id" FROM "post_favorites" WHERE (user_id <> 20)
=> true
[33] pry(main)> PostFavorite.find(687)
  PostFavorite Load (0.3ms)  SELECT  "post_favorites".* FROM "post_favorites" WHERE "post_favorites"."id" = $1 LIMIT 1  [["id", 687]]
=> #<PostFavorite:0x007f7fa68f9530
 id: 687,
 post_id: 26,
 user_id: 20,
 status: "Upvote",
 created_at: Fri, 28 Apr 2017 04:08:51 UTC +00:00,
 updated_at: Fri, 28 Apr 2017 04:08:51 UTC +00:00,
 imported_id: nil,
 is_imported: false,
 import_source: nil>