#7

backend/app/models/post.rb

@@ -1,6 +1,6 @@
 class Post < ApplicationRecord
   belongs_to :parent, class_name: 'Post', optional: true, foreign_key: 'parent_id'
-  belongs_to :user, foreign_key: ''
+  belongs_to :uploaded_user, class_name: 'User', optional: true
   has_many :post_tags, dependent: :destroy
   has_many :tags, through: :post_tags
   has_many :user_post_views, dependent: :destroy