Sequel model class config example

base.rb

        def self.configure_class(table:, filter: {}, &block)
          ds = db[table]
          ds = ds.filter filter unless filter.blank?
          ds = ds.filter &block if     block_given?
          set_dataset(ds)
          fixture_keys.each { |k| FixtureDependencies.class_map[k] = self }
        end

        def self.fixture_keys
          # PorcIO::ID::Models::User -> [ :user, :porc_io/id/models/user ]
          [ singularize(table_name).to_sym, "porc_io/id/models/#{singularize(table_name)}".to_sym ]
        end

model.rb

      OAuth2Request = Class.new(Base)
      class OAuth2Request
        configure_class(table: :oauth2_requests)
        configure_class(table: :oauth2_requests, filter: :active)
        configure_class(table: :oauth2_requests, filter: {active: true}})
        configure_class(table: :oauth2_requests) {created_at > Time.yesterday}