Update associations

lib/aggiedit/accounts/user.ex

@@ -13,6 +13,7 @@ defmodule Aggiedit.Accounts.User do
     field :role, Ecto.Enum, values: [:user, :admin], default: :user
 
     belongs_to :room, Room, on_replace: :update
+    has_many :posts, Aggiedit.Rooms.Post
 
     timestamps()
   end

lib/aggiedit/rooms/post.ex

@@ -5,9 +5,10 @@ defmodule Aggiedit.Rooms.Post do
   schema "posts" do
     field :body, :string
     field :title, :string
-    field :user_id, :id
-    field :upload_id, :id
-    field :room_id, :id
+    
+    belongs_to :room, Aggiedit.Rooms.Room
+    belongs_to :user, Aggiedit.Accounts.User
+    belongs_to :upload, Aggiedit.Uploads.Upload
 
     timestamps()
   end
@@ -18,4 +19,19 @@ defmodule Aggiedit.Rooms.Post do
     |> cast(attrs, [:title, :body])
     |> validate_required([:title, :body])
   end
+
+  def change_user(post, user) do
+    change(post)
+    |> put_assoc(:user, user)
+  end
+
+  def change_upload(post, upload) do
+    change(post)
+    |> put_assoc(:upload, upload)
+  end
+
+  def change_room(post, room) do
+    change(post)
+    |> put_assoc(:room, room)
+  end
 end

lib/aggiedit/rooms/room.ex

@@ -6,6 +6,7 @@ defmodule Aggiedit.Rooms.Room do
     field :domain, :string
 
     has_many :users, Aggiedit.Accounts.User
+    has_many :posts, Aggiedit.Rooms.Post
 
     timestamps()
   end