Class: Ruhl::Rails::Presenter

Inherits:

Object

• Object
• Ruhl::Rails::Presenter

show all

Includes:

ActiveRecord, Helper

Defined in:

lib/ruhl/rails/ruhl_presenter.rb

Instance Attribute Summary (collapse)

• - (Object) context readonly

  Returns the value of attribute context.

• - (Object) presentee readonly

  Returns the value of attribute presentee.

Instance Method Summary (collapse)

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

  A new instance of Presenter.

• - (Object) method_missing(name, *args)
• - (Boolean) respond_to?(name)

  Extend scope of respond_to? to model.

Methods included from Helper

#form_authenticity, #i

Methods included from ActiveRecord

#define_paths, #error_messages, #error_messages?

12
13
14
15
16
17
18
19
20

# 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

22
23
24
25
26
27
28
29
30

# 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

10
11
12

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

def context
  @context
end

10
11
12

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

def presentee
  @presentee
end

33
34
35
36
37
38
39

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

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