Class: Ruhl::Rails::Presenter

Inherits:
Object
  • Object
show all
Includes:
ActiveRecord, Helper
Defined in:
lib/ruhl/rails/ruhl_presenter.rb

Instance Attribute Summary (collapse)

Instance Method Summary (collapse)

Methods included from Helper

#form_authenticity, #i

Methods included from ActiveRecord

#define_paths, #error_messages, #error_messages?

Constructor Details

- (Presenter) initialize(context, obj = nil)

Returns a new instance of Presenter



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# File 'lib/ruhl/rails/ruhl_presenter.rb', line 12

def initialize(context, obj = nil)
  @context = context

  # May only want to use the form helper
  if obj
    @presentee = obj
    define_paths(obj.class.name.underscore.downcase)
  end
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

- (Object) method_missing(name, *args)



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# File 'lib/ruhl/rails/ruhl_presenter.rb', line 22

def method_missing(name, *args)
  # Pass presenter method call to model so you don't have to
  # redefine every model method in the presenter class.
  presentee.__send__(name, *args)
rescue NoMethodError 
  # Instead of saying context.link_to('Some site', some_path)
  # can just use link_to
  context.__send__(name, *args)
end

Instance Attribute Details

- (Object) context (readonly)

Returns the value of attribute context



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# File 'lib/ruhl/rails/ruhl_presenter.rb', line 10

def context
  @context
end

- (Object) presentee (readonly)

Returns the value of attribute presentee



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# File 'lib/ruhl/rails/ruhl_presenter.rb', line 10

def presentee
  @presentee
end

Instance Method Details

- (Boolean) respond_to?(name)

Extend scope of respond_to? to model.

Returns:

  • (Boolean)


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# File 'lib/ruhl/rails/ruhl_presenter.rb', line 33

def respond_to?(name)  
  if super
    true
  else
    presentee.respond_to?(name)
  end
end