Do not invoke old data migrations inside of migrations any more

priv/repo/migrations/20210314114416_execute_migrate_idea_labels.exs

@@ -1,13 +1,11 @@
 defmodule Mindwendel.Repo.Migrations.ExecuteMigrateIdeaLabels do
-  # Remember to always use a relative file to the priv directory of the elixir app.
-  # Therefore, we are using `:code.priv_dir(:mindwendel)`
-  # See https://elixirforum.com/t/handling-relative-paths-inside-my-mix-project/28974
-  Code.require_file("#{:code.priv_dir(:mindwendel)}/repo/data_migrations/migrate_idea_labels.exs")
-
   use Ecto.Migration
 
+  # There used to be code here, but the migration is so old it's not worth keeping significant code
+  # and its tests around. No one needs a 2 year+ old data migration, or so I hope.
+  # However, the migration already ran/is saved in the `schema_migrations` so removing it would also
+  # be confusing. Hence, it's kept empty.
   def up do
-    Mindwendel.Repo.DataMigrations.MigrateIdealLabels.run()
   end
 
   # We do nothing here

priv/repo/migrations/20220220162733_migrate_idea_labels_to_idea_idea_labels.exs

@@ -1,15 +1,11 @@
 defmodule Mindwendel.Repo.Migrations.MigrateIdeaLabelsToIdeaIdeaLabels do
-  # Remember to always use a relative file to the priv directory of the elixir app.
-  # Therefore, we are using `:code.priv_dir(:mindwendel)`
-  # See https://elixirforum.com/t/handling-relative-paths-inside-my-mix-project/28974
-  Code.require_file(
-    "#{:code.priv_dir(:mindwendel)}/repo/data_migrations/migrate_idea_labels_to_idea_idea_labels.exs"
-  )
-
   use Ecto.Migration
 
+  # There used to be code here, but the migration is so old it's not worth keeping significant code
+  # and its tests around. No one needs a 2 year+ old data migration, or so I hope.
+  # However, the migration already ran/is saved in the `schema_migrations` so removing it would also
+  # be confusing. Hence, it's kept empty.
   def up do
-    Mindwendel.Repo.DataMigrations.MigrateIdeaLabelsToIdeaIdeaLabels.run()
   end
 
   # We do nothing here