lots of things done: thread - reply - category - seeds

priv/repo/migrations/20180102015706_create_thread.exs

@@ -4,15 +4,15 @@ defmodule MyApp.Repo.Migrations.CreateThread do
   def change do
     create table(:thread) do
       add :title, :string
+      add :category_id, :integer
       add :content, :string
       add :view_count, :integer
       add :user_id, references(:user)
-      add :last_reply_id, :integer
+      add :last_reply_id, :integer # TODO: figure this out
       add :sticky, :boolean
       add :locked, :boolean
-
+      add :edited, :boolean
       timestamps()
     end
-
   end
 end