Module: Renderable::ClassMethods

Defined in:
lib/renderable.rb

Instance Method Summary collapse

Instance Method Details

#acts_as_renderable(options = {}) ⇒ Object

Add auto-rendering behaviour to an ActiveRecord object. This will automatically set up accessors on both original and rendered fields, using attr_accessor

Parameters

options

a Hash containing options for Renderable (see below)

Options

:fields

an array of ActiveRecord fields you wish to make renderable

:suffix

the suffix to use for ‘rendered’ versions of fields. (default: ‘_rendered’)



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# File 'lib/renderable.rb', line 24

def acts_as_renderable( options = {} )
  include InstanceMethods
  
  # sanity check
  if options[:fields].blank?
    return
  end
  
  # default options
  options[:suffix]        ||= '_rendered'
  options[:restrictions]  ||= []
  
  # store the options
  self.renderable_options = options
  
  # set accessible on fields
  options[:fields].each do |field|
    if ::Rails::VERSION::STRING < '4.0'
      attr_accessible field, "#{field}#{options[:suffix]}"
    end
    
    define_renderable_callbacks :"#{field}_render"
  end
  
  # set up callbacks
  define_renderable_callbacks :render
  
  # hook
  before_save :renderable_render
        
end