Module: QueryInterface::Server::Transformations

Defined in:
lib/query-interface-server/transformations.rb,
lib/query-interface-server/transformations/sequel_transformer.rb

Defined Under Namespace

Modules: ClassMethods Classes: SequelTransformer, TransformationScope

Class Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/query-interface-server/transformations.rb', line 5

def self.included(base)    
  base.extend(ClassMethods)
  base.dataset_module do
    def query_transformation(type, name, *args)
      block = model.instance_variable_get(:@query_transformations)[type][name]
      if block
        self.instance_exec(*args, &block)
      elsif type == :order and args.count == 1
        self.order_append(Sequel.send(args[0], name.to_sym))
      else
        raise "No #{type} implementation for #{name}"
      end
    end
  end
  base.instance_variable_set(:@query_transformations, {
    exclude: {},
    filter: {},
    with: {},
    order: {},
    update: {},
  })
end