Working basic frontend implementation

lib/mixer/accounts/user.ex

@@ -303,6 +303,8 @@ defmodule Mixer.Accounts.User do
     has_many :valid_api_keys, Mixer.Accounts.ApiKey do
       filter expr(valid)
     end
+
+    has_many :tweets, Mixer.Posts.Tweet
   end
 
   identities do

lib/mixer/posts/tweet.ex

@@ -16,7 +16,7 @@ defmodule Mixer.Posts.Tweet do
   end
 
   state_machine do
-    initial_states [:drafted]
+    initial_states [:drafted, :posted]
     default_initial_state :drafted
 
     transitions do
@@ -57,4 +57,18 @@ defmodule Mixer.Posts.Tweet do
       public? true
     end
   end
+
+  policies do
+    policy action_type(:read) do
+      authorize_if always()
+    end
+
+    policy action_type(:create) do
+      authorize_if actor_present()
+    end
+
+    policy action_type([:destroy, :update]) do
+      authorize_if relates_to_actor_via(:user)
+    end
+  end
 end