FIX: Drop and recreate column properly for directory_columns (#13429)

db/migrate/20210617202227_change_automatic_on_directory_columns_to_bool.rb

@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+class ChangeAutomaticOnDirectoryColumnsToBool < ActiveRecord::Migration[6.1]
+  def up
+    begin
+      Migration::SafeMigrate.disable!
+
+      # Because of a weird state we are in where some sites have a boolean type column for `automatic` and some
+      # have an `integer`type, we remove the column. Then we re-create it and using `user_field_id` to determine
+      # if the value should be true or false.
+      remove_column :directory_columns, :automatic
+      add_column :directory_columns, :automatic, :boolean, default: true, null: false
+
+      execute <<~SQL
+        UPDATE directory_columns SET automatic = (user_field_id IS NULL);
+      SQL
+    ensure
+      Migration::SafeMigrate.enable!
+    end
+  end
+
+  def down
+    raise ActiveRecord::IrreversibleMigration
+  end
+end