Adding likes to tweets

priv/repo/migrations/20260331182608_add_tweet_likes.exs

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+defmodule Mixer.Repo.Migrations.AddTweetLikes do
+  @moduledoc """
+  Updates resources based on their most recent snapshots.
+
+  This file was autogenerated with `mix ash_postgres.generate_migrations`
+  """
+
+  use Ecto.Migration
+
+  def up do
+    create table(:tweet_likes, primary_key: false) do
+      add :id, :uuid, null: false, default: fragment("gen_random_uuid()"), primary_key: true
+
+      add :tweet_id,
+          references(:tweets,
+            column: :id,
+            name: "tweet_likes_tweet_id_fkey",
+            type: :uuid,
+            prefix: "public"
+          ), null: false
+
+      add :user_id,
+          references(:users,
+            column: :id,
+            name: "tweet_likes_user_id_fkey",
+            type: :uuid,
+            prefix: "public"
+          ), null: false
+    end
+
+    create unique_index(:tweet_likes, [:tweet_id, :user_id],
+             name: "tweet_likes_unique_user_tweet_index"
+           )
+  end
+
+  def down do
+    drop_if_exists unique_index(:tweet_likes, [:tweet_id, :user_id],
+                     name: "tweet_likes_unique_user_tweet_index"
+                   )
+
+    drop constraint(:tweet_likes, "tweet_likes_tweet_id_fkey")
+
+    drop constraint(:tweet_likes, "tweet_likes_user_id_fkey")
+
+    drop table(:tweet_likes)
+  end
+end