Merge with migration step 3 (PR #5036)

Author: RobertJoonas

priv/repo/migrations/20250128161815_add_scroll_threshold_to_goals.exs

@@ -4,14 +4,6 @@ defmodule Plausible.Repo.Migrations.AddScrollThresholdToGoals do
   @disable_ddl_transaction true
   @disable_migration_lock true
 
-  # Plausible.Repo.Migrations.GoalsUnique
-  @old_index unique_index(
-               :goals,
-               [:site_id, :page_path],
-               where: "page_path IS NOT NULL",
-               name: :goals_page_path_unique
-             )
-
   @new_index unique_index(
                :goals,
                [:site_id, :page_path, :scroll_threshold],
@@ -24,13 +16,11 @@ defmodule Plausible.Repo.Migrations.AddScrollThresholdToGoals do
       add :scroll_threshold, :smallint, null: false, default: -1
     end
 
-    drop(@old_index)
     create(@new_index)
   end
 
   def down do
     drop(@new_index)
-    create(@old_index)
 
     alter table(:goals) do
       remove :scroll_threshold

priv/repo/migrations/20250130121019_drop_unique_page_path_constraint_from_goals.exs

@@ -0,0 +1,22 @@
+defmodule Plausible.Repo.Migrations.DropUniquePagePathConstraintFromGoals do
+  use Ecto.Migration
+
+  @disable_ddl_transaction true
+  @disable_migration_lock true
+
+  # Plausible.Repo.Migrations.GoalsUnique
+  @old_index unique_index(
+               :goals,
+               [:site_id, :page_path],
+               where: "page_path IS NOT NULL",
+               name: :goals_page_path_unique
+             )
+
+  def up do
+    drop(@old_index)
+  end
+
+  def down do
+    create(@old_index)
+  end
+end

test/plausible/goals_test.exs

@@ -99,8 +99,7 @@ defmodule Plausible.GoalsTest do
     assert {:error, changeset} =
              Goals.create(site, %{"page_path" => "foo bar", "display_name" => "two"})
 
-    assert {"has already been taken", _} =
-             changeset.errors[:page_path]
+    assert {"has already been taken", _} = changeset.errors[:page_path]
   end
 
   test "create/2 fails to create the same custom event goal twice" do