Module: Backable::ControllerConcern

Extended by:
ActiveSupport::Concern
Defined in:
lib/backable/controller_concern.rb

Instance Method Summary collapse

Instance Method Details

#backable_back_path(fallback = nil) ⇒ Object 



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# File 'lib/backable/controller_concern.rb', line 32

def backable_back_path( fallback=nil )
  back = backable_history.last
  fallback = Backable.fallback_url
  return fallback unless back

  back_param = backable_param( backable_history[0..-2] )
  back.index('?') ? "#{back}&back=#{CGI::escape(back_param)}" : "#{back}?back=#{CGI::escape(back_param)}"
end

#backable_future ⇒ Object 



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# File 'lib/backable/controller_concern.rb', line 28

def backable_future
  @backable_future ||= []
end

#backable_history ⇒ Object 



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# File 'lib/backable/controller_concern.rb', line 20

def backable_history
  @backable_history ||= begin
    (params[:back] || "").split('|').map do |v|
      v
    end
  end
end

#backable_param(history = nil) ⇒ Object 



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# File 'lib/backable/controller_concern.rb', line 15

def backable_param( history=nil)
  history ||= (backable_history + backable_future)
  history.map{ |bi| bi.to_s }.join("|")
end

#backable_push(path) ⇒ Object 



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# File 'lib/backable/controller_concern.rb', line 41

def backable_push(path)
  path = polymorphic_path(path) if !path.kind_of?( String )
  backable_future << path.to_s
end

#backable_url_for(link_options, extra_options = {}) ⇒ Object 



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# File 'lib/backable/controller_concern.rb', line 46

def backable_url_for( link_options, extra_options = {} )
  args = extra_options.merge( back: backable_param )

  # support for strings
  if link_options.kind_of?( String )
    url = link_options
    url << ( link_options.index('?') ? '&' : '?' )
    url << args.to_query
    url
  else
    polymorphic_url( link_options, args )
  end
end