Class: DisplayCase::EnumerableExhibit

Inherits:
Exhibit
  • Object
show all
Includes:
Enumerable
Defined in:
lib/display_case/enumerable_exhibit.rb

Instance Attribute Summary

Attributes inherited from Exhibit

#context

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Exhibit

#__class__, #__instance_of__?, #__kind_of__?, #cache, #class, class_comparator, exhibit, #exhibit, #exhibit_chain, exhibit_if_applicable, #exhibited?, exhibited_object?, exhibits, inherited, #initialize, initialize_exhibits, #inspect, #inspect_exhibits, #instance_of?, #kind_of?

Constructor Details

This class inherits a constructor from DisplayCase::Exhibit

Class Method Details

.applicable_to?(object, context = nil) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/display_case/enumerable_exhibit.rb', line 7

def self.applicable_to?(object, context=nil)
  # ActiveRecord::Relation, surprisingly, is not Enumerable. But it
  # behaves sufficiently similarly for our purposes.
  object.respond_to?(:each)
end

Instance Method Details

#each ⇒ Object 



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# File 'lib/display_case/enumerable_exhibit.rb', line 36

def each(*)
  __getobj__.map do |e|
    yield exhibit(e) if block_given?
    exhibit(e)
  end.each
end

#render(template, options = {}) ⇒ Object 



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# File 'lib/display_case/enumerable_exhibit.rb', line 54

def render(template, options = {})
  inject(ActiveSupport::SafeBuffer.new) { |output,element|
    output << element.render(template, options)
  }
end

#to_ary ⇒ Object

‘render ’…‘, :collection => self` will call #to_ary on this before rendering, so we need to be prepared.



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# File 'lib/display_case/enumerable_exhibit.rb', line 45

def to_ary
  self.to_a
end

#to_json(*args) ⇒ Object

See github.com/objects-on-rails/display-case/issues/27



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# File 'lib/display_case/enumerable_exhibit.rb', line 50

def to_json(*args)
  as_json(*args).to_json(*args)
end