module Pagination
unless const_defined?(:OPTIONS)
# A hash holding options for controllers using macro-style pagination
- OPTIONS = Hash.new
+ OPTIONS = {}
# The default options for pagination
DEFAULT_OPTIONS = {
end
def self.validate_options!(collection_id, options, in_action) #:nodoc:
- options.merge!(DEFAULT_OPTIONS) {|key, old, new| old}
+ options.merge!(DEFAULT_OPTIONS) { |_key, old, _new| old }
valid_options = DEFAULT_OPTIONS.keys
valid_options << :actions unless in_action
unknown_option_keys = options.keys - valid_options
- raise ActionController::ActionControllerError,
- "Unknown options: #{unknown_option_keys.join(', ')}" unless
+ fail ActionController::ActionControllerError,
+ "Unknown options: #{unknown_option_keys.join(', ')}" unless
unknown_option_keys.empty?
options[:singular_name] ||= ActiveSupport::Inflector.singularize(collection_id.to_s)
#
# <tt>:group</tt>:: :group parameter passed to Model.find(:all, *params). It forces the use of DISTINCT instead of plain COUNT to come up with the total number of records
#
- def paginate(collection_id, options={})
+ def paginate(collection_id, options = {})
Pagination.validate_options!(collection_id, options, true)
paginator_and_collection_for(collection_id, options)
end
# of:
# <tt>:actions</tt>:: an array of actions for which the pagination is
# active. Defaults to +nil+ (i.e., every action)
- def paginate(collection_id, options={})
+ def paginate(collection_id, options = {})
Pagination.validate_options!(collection_id, options, false)
module_eval do
before_filter :create_paginators_and_retrieve_collections
- OPTIONS[self] ||= Hash.new
+ OPTIONS[self] ||= {}
OPTIONS[self][collection_id] = options
end
end
paginator_and_collection_for(collection_id, options)
paginator_name = "@#{options[:singular_name]}_pages"
- self.instance_variable_set(paginator_name, paginator)
+ instance_variable_set(paginator_name, paginator)
- collection_name = "@#{collection_id.to_s}"
- self.instance_variable_set(collection_name, collection)
+ collection_name = "@#{collection_id}"
+ instance_variable_set(collection_name, collection)
end
end
:count_collection_for_pagination,
:find_collection_for_pagination
- def paginator_and_collection_for(collection_id, options) #:nodoc:
+ def paginator_and_collection_for(_collection_id, options) #:nodoc:
klass = options[:class_name].constantize
page = params[options[:parameter]]
count = count_collection_for_pagination(klass, options)
paginator = Paginator.new(self, count, options[:per_page], page)
collection = find_collection_for_pagination(klass, options, paginator)
- return paginator, collection
+ [paginator, collection]
end
private :paginator_and_collection_for
# Raises ArgumentError if items_per_page is out of bounds (i.e., less
# 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)
- raise ArgumentError, 'must have at least one item per page' if
+ def initialize(controller, item_count, items_per_page, current_page = 1)
+ fail 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
- raise ArgumentError, 'Page/Paginator mismatch' unless
+ fail ArgumentError, 'Page/Paginator mismatch' unless
page.paginator == self
end
page = page.to_i
def current_page
@current_page ||= self[@current_page_number]
end
- alias current :current_page
+ alias_method :current, :current_page
# Returns a new Page representing the first page in this paginator.
def first_page
@first_page ||= self[1]
end
- alias first :first_page
+ alias_method :first, :first_page
# Returns a new Page representing the last page in this paginator.
def last_page
@last_page ||= self[page_count]
end
- alias last :last_page
+ alias_method :last, :last_page
# Returns the number of pages in this paginator.
def page_count
@page_count ||= @item_count.zero? ? 1 :
- (q,r=@item_count.divmod(@items_per_page); r==0? q : q+1)
+ (q, r = @item_count.divmod(@items_per_page); r == 0 ? q : q + 1)
end
- alias length :page_count
+ alias_method :length, :page_count
# Returns true if this paginator contains the page of index +number+.
def has_page_number?(number)
- number >= 1 and number <= page_count
+ number >= 1 && number <= page_count
end
# Returns a new Page representing the page with the given index
end
# Successively yields all the paginator's pages to the given block.
- def each(&block)
+ def each(&_block)
page_count.times do |n|
- yield self[n+1]
+ yield self[n + 1]
end
end
@number = 1 unless @paginator.has_page_number? @number
end
attr_reader :paginator, :number
- alias to_i :number
+ alias_method :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
# same page number).
def ==(page)
return false if page.nil?
- @paginator == page.paginator and
+ @paginator == page.paginator &&
@number == page.number
end
# left-hand page comes after the right-hand page. Raises ArgumentError
# if the pages do not belong to the same Paginator object.
def <=>(page)
- raise ArgumentError unless @paginator == page.paginator
+ fail ArgumentError unless @paginator == page.paginator
@number <=> page.number
end
# Returns a new Window object for this page with the specified
# +padding+.
- def window(padding=2)
+ def window(padding = 2)
Window.new(self, padding)
end
class Window
# Creates a new Window object for the given +page+ with the specified
# +padding+.
- def initialize(page, padding=2)
+ def initialize(page, padding = 2)
@paginator = page.paginator
@page = page
self.padding = padding
# Returns an array of Page objects in the current window.
def pages
- (@first.number..@last.number).to_a.collect! {|n| @paginator[n]}
+ (@first.number..@last.number).to_a.collect! { |n| @paginator[n] }
end
- alias to_a :pages
+ alias_method :to_a, :pages
end
end
-
end
end
projects / rails.git / blobdiff