DEFAULT_OPTIONS[:group] = nil
else
# A hash holding options for controllers using macro-style pagination
- OPTIONS = {}
+ OPTIONS = {}.freeze
# The default options for pagination
DEFAULT_OPTIONS = {
:select => nil,
:group => nil,
:parameter => "page"
- }
+ }.freeze
end
def self.included(base) #:nodoc:
valid_options << :actions unless in_action
unknown_option_keys = options.keys - valid_options
- fail ActionController::ActionControllerError,
- "Unknown options: #{unknown_option_keys.join(', ')}" unless
- unknown_option_keys.empty?
+ unless unknown_option_keys.empty?
+ raise ActionController::ActionControllerError,
+ "Unknown options: #{unknown_option_keys.join(', ')}"
+ end
options[:singular_name] ||= ActiveSupport::Inflector.singularize(collection_id.to_s)
options[:class_name] ||= ActiveSupport::Inflector.camelize(options[:singular_name])
# than or equal to zero). The page CGI parameter for links defaults to
# "page" and can be overridden with +page_parameter+.
def initialize(controller, item_count, items_per_page, current_page = 1)
- fail ArgumentError, "must have at least one item per page" if
+ raise ArgumentError, "must have at least one item per page" if
items_per_page <= 0
@controller = controller
# not belong to this Paginator, an ArgumentError is raised.
def current_page=(page)
if page.is_a? Page
- fail ArgumentError, "Page/Paginator mismatch" unless
+ raise ArgumentError, "Page/Paginator mismatch" unless
page.paginator == self
end
page = page.to_i
def current_page
@current_page ||= self[@current_page_number]
end
- alias_method :current, :current_page
+ alias current current_page
# Returns a new Page representing the first page in this paginator.
def first_page
@first_page ||= self[1]
end
- alias_method :first, :first_page
+ alias first first_page
# Returns a new Page representing the last page in this paginator.
def last_page
@last_page ||= self[page_count]
end
- alias_method :last, :last_page
+ alias last last_page
# Returns the number of pages in this paginator.
def page_count
1
else
q, r = @item_count.divmod(@items_per_page)
- r == 0 ? q : q + 1
+ r.zero? ? q : q + 1
end
end
- alias_method :length, :page_count
+ alias length page_count
# Returns true if this paginator contains the page of index +number+.
def has_page_number?(number)
@number = 1 unless @paginator.has_page_number? @number
end
attr_reader :paginator, :number
- alias_method :to_i, :number
+ alias to_i number
# Compares two Page objects and returns true when they represent the
# same page (i.e., their paginators are the same and they have the
# left-hand page comes after the right-hand page. Raises ArgumentError
# if the pages do not belong to the same Paginator object.
def <=>(other)
- fail ArgumentError unless @paginator == other.paginator
+ raise ArgumentError unless @paginator == other.paginator
@number <=> other.number
end
def pages
(@first.number..@last.number).to_a.collect! { |n| @paginator[n] }
end
- alias_method :to_a, :pages
+ alias to_a pages
end
end
end