X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/8e404f3a468a2636481d52f245b816c41e9d5ac0..fe81ac334cfef04751a959297dca24e472cb025f:/lib/classic_pagination/pagination.rb diff --git a/lib/classic_pagination/pagination.rb b/lib/classic_pagination/pagination.rb index 32995a5f6..b54b0e9f8 100644 --- a/lib/classic_pagination/pagination.rb +++ b/lib/classic_pagination/pagination.rb @@ -61,44 +61,45 @@ module ActionController 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 = { :class_name => nil, :singular_name => nil, - :per_page => 10, + :per_page => 10, :conditions => nil, - :order_by => nil, - :order => nil, - :join => nil, - :joins => nil, - :count => nil, - :include => nil, - :select => nil, - :group => nil, - :parameter => "page" - } + :order_by => nil, + :order => nil, + :join => nil, + :joins => nil, + :count => nil, + :include => nil, + :select => nil, + :group => nil, + :parameter => "page" + }.freeze end - def self.included(base) #:nodoc: + def self.included(base) # :nodoc: super base.extend(ClassMethods) end - def self.validate_options!(collection_id, options, in_action) #:nodoc: + def self.validate_options!(collection_id, options, in_action) # :nodoc: 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 - 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]) + options[:class_name] ||= ActiveSupport::Inflector.camelize(options[:singular_name]) end # Returns a paginator and a collection of Active Record model instances @@ -135,7 +136,7 @@ module ActionController # These methods become class methods on any controller module ClassMethods - # Creates a +before_filter+ which automatically paginates an Active + # Creates a +before_action+ which automatically paginates an Active # Record model for all actions in a controller (or certain actions if # specified with the :actions option). # @@ -146,17 +147,18 @@ module ActionController def paginate(collection_id, options = {}) Pagination.validate_options!(collection_id, options, false) module_eval do - before_filter :create_paginators_and_retrieve_collections + before_action :create_paginators_and_retrieve_collections OPTIONS[self] ||= {} OPTIONS[self][collection_id] = options end end end - def create_paginators_and_retrieve_collections #:nodoc: + protected + + def create_paginators_and_retrieve_collections # :nodoc: Pagination::OPTIONS[self.class].each do |collection_id, options| - next unless options[:actions].include? action_name if - options[:actions] + next if options[:actions]&.exclude?(action_name) paginator, collection = paginator_and_collection_for(collection_id, options) @@ -200,11 +202,9 @@ module ActionController collection.offset(paginator.current.offset).limit(options[:per_page]) end - protected :create_paginators_and_retrieve_collections, - :count_collection_for_pagination, - :find_collection_for_pagination + private - 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) @@ -214,8 +214,6 @@ module ActionController [paginator, collection] end - private :paginator_and_collection_for - # A class representing a paginator for an Active Record collection. class Paginator include Enumerable @@ -226,7 +224,7 @@ module ActionController # 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 @@ -242,31 +240,29 @@ module ActionController # object, its +number+ attribute is used as the value; if the page does # not belong to this Paginator, an ArgumentError is raised. def current_page=(page) - if page.is_a? Page - fail ArgumentError, "Page/Paginator mismatch" unless - page.paginator == self - end + raise ArgumentError, "Page/Paginator mismatch" if page.is_a?(Page) && page.paginator != self + page = page.to_i - @current_page_number = has_page_number?(page) ? page : 1 + @current_page_number = contains_page?(page) ? page : 1 end # Returns a Page object representing this paginator's current page. 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 @@ -274,14 +270,14 @@ module ActionController 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) + def contains_page?(number) number >= 1 && number <= page_count end @@ -292,7 +288,7 @@ module ActionController end # Successively yields all the paginator's pages to the given block. - def each(&_block) + def each(&) page_count.times do |n| yield self[n + 1] end @@ -308,16 +304,18 @@ module ActionController def initialize(paginator, number) @paginator = paginator @number = number.to_i - @number = 1 unless @paginator.has_page_number? @number + @number = 1 unless @paginator.contains_page? @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 # same page number). def ==(other) return false if other.nil? + @paginator == other.paginator && @number == other.number end @@ -327,7 +325,8 @@ module ActionController # 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 @@ -379,7 +378,7 @@ module ActionController [@paginator.items_per_page, offset] end - def to_param #:nodoc: + def to_param # :nodoc: @number.to_s end end @@ -393,31 +392,30 @@ module ActionController @page = page self.padding = padding end - attr_reader :paginator, :page + attr_reader :paginator, :page, :padding, :first, :last # Sets the window's padding (the number of pages on either side of the # window page). def padding=(padding) - @padding = padding < 0 ? 0 : padding + @padding = padding.negative? ? 0 : padding # Find the beginning and end pages of the window - @first = if @paginator.has_page_number?(@page.number - @padding) + @first = if @paginator.contains_page?(@page.number - @padding) @paginator[@page.number - @padding] else @paginator.first end - @last = if @paginator.has_page_number?(@page.number + @padding) + @last = if @paginator.contains_page?(@page.number + @padding) @paginator[@page.number + @padding] else @paginator.last end end - attr_reader :padding, :first, :last # Returns an array of Page objects in the current window. 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