Merge pull request doorkeeper-gem#762 from arion/fix/allow_migrations

Check should not abort the actual migration

lib/doorkeeper/orm/active_record.rb

@@ -25,11 +25,12 @@ def self.check_requirements!(_config)
              Doorkeeper::Application.table_name
            )
           unless Doorkeeper::Application.new.attributes.include?("scopes")
-            fail <<-MSG.squish
+            migration_path = '../../../generators/doorkeeper/templates/add_scopes_to_oauth_applications.rb'
+            puts <<-MSG.squish
 [doorkeeper] Missing column: `oauth_applications.scopes`.
-Run `rails generate doorkeeper:application_scopes
-&& rake db:migrate` to add it.
+Create the following migration and run `rake db:migrate`.
             MSG
+            puts File.read(File.expand_path(migration_path, __FILE__))
           end
         end
       end