Class: ActiveAdapter::Engine

Inherits:

Object

• Object
• ActiveAdapter::Engine

Defined in:

lib/active_adapter/engine.rb

Class Method Summary

• .adapt(adapter) ⇒ Object

  To adapt engine object for a real object.

Class Method Details

.adapt(adapter) ⇒ Object

To adapt engine object for a real object

Examples:

# vehicle.rb
class Vehicle < ActiveAdapter::Engine; end

# vehicle_adapters/abstract.rb
class VehicleAdapters::Abstract < ActiveAdapter::Abstract
  def run
    adapter.run
  end
end

# vehicle_adapters/car.rb
class VehicleAdapters::Car < ActiveAdapter::Implement
  def run
    "Car running..."
  end
end

vehicle = Vehicle.adapt(:car)
vehicle.run # => "Car running..."

Parameters:

• adapter (#to_sym) —

  Adapter class name

Returns:

• (Object) —

  The real object with a adapter

Raises:

• (ActiveAdapter::AbstractAdapterUndefinedError) —

  if there is no *_adapters folder or there is no abstract class(inherit from ActiveAdapter::Abstract) in *_adapters folder

• (ActiveAdapter::ImplementAdapterUndefinedError) —

  if there is no implement class inherit from ActiveAdapter::Implement)

# File 'lib/active_adapter/engine.rb', line 31

def adapt(adapter)
  adapters[adapter.to_s] ||= begin
    module_name = "#{name.deconstantize}::#{name.demodulize}Adapters"
    abstract_adapter_class = get_abstract_adapter_class(module_name)
    implement_adapter_class = get_implement_adapter_class(module_name, adapter)
    implement_adapter_class.abstract_adapter = abstract_adapter_class
    abstract_adapter_class.new(implement_adapter_class)
  end
end