Module: PagedScopes::Controller::ClassMethods

Defined in:
lib/paged_scopes/controller.rb

Instance Method Summary collapse

Instance Method Details

#paginate(*args) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/paged_scopes/controller.rb', line 4

def paginate(*args)
  options = args.extract_options!
  raise ArgumentError, "can't paginate multiple collections with one call" if args.many?
  collection_name = args.first || default_collection_name
  callback_method = "paginate_#{collection_name}"
  define_method callback_method do
    collection = instance_variable_get("@#{collection_name.to_s.pluralize}")
    raise RuntimeError, "no @#{collection_name.to_s.pluralize} collection was set" unless collection
    object = instance_variable_get("@#{collection_name.to_s.singularize}")
    page = page_for(collection, object, options)
    instance_variable_set("@#{collection.pages.name.underscore}", page)
  end
  protected callback_method
  before_filter callback_method, options.except(:per_page, :name, :path)
end