Module: Serega::SeregaPlugins::Presenter

Defined in:
lib/serega/plugins/presenter/presenter.rb

Overview

Plugin :presenter — moves computed attribute logic into a dedicated Presenter class.

Presenter inherits from SimpleDelegator:

  • All methods of the serialized object are available directly inside presenter methods.

  • Methods not defined on Presenter are resolved via method_missing on the first call and then defined as real delegators, so subsequent calls skip method_missing entirely.

  • The original object is accessible via __getobj__ (standard SimpleDelegator API).

  • The serialization context is accessible via the private method __ctx__.

    class UserSerializer < Serega

    plugin :presenter

attribute :name
attribute :role

class Presenter
  def name
    [first_name, last_name].compact.join(' ') # first_name/last_name delegated to object
  end

  def role
    id == __ctx__[:current_user_id] ? :self : :other
  end
end

    end

Defined Under Namespace

Modules: ClassMethods, SeregaObjectSerializerInstanceMethods Classes: Presenter

Class Method Summary collapse

Class Method Details

.after_load_plugin(serializer_class, **_opts) ⇒ void

This method returns an undefined value.

Runs callbacks after plugin was attached

Parameters:

  • serializer_class (Class<Serega>) —

    Current serializer class

  • _opts (Hash) —

    Plugin options



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# File 'lib/serega/plugins/presenter/presenter.rb', line 61

def self.after_load_plugin(serializer_class, **_opts)
  presenter_class = Class.new(Presenter)
  presenter_class.serializer_class = serializer_class
  serializer_class.const_set(:Presenter, presenter_class)
end

.load_plugin(serializer_class, **_opts) ⇒ void

This method returns an undefined value.

Applies plugin code to specific serializer

Parameters:

  • serializer_class (Class<Serega>) —

    Current serializer class

  • _opts (Hash) —

    Plugin options



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# File 'lib/serega/plugins/presenter/presenter.rb', line 48

def self.load_plugin(serializer_class, **_opts)
  serializer_class.extend(ClassMethods)
  serializer_class::SeregaObjectSerializer.include(SeregaObjectSerializerInstanceMethods)
end

.plugin_name ⇒ Symbol

Returns Plugin name.

Returns:

  • (Symbol) —

    Plugin name



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# File 'lib/serega/plugins/presenter/presenter.rb', line 36

def self.plugin_name
  :presenter
end