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[rails.git] / lib / classic_pagination / pagination.rb

diff --git a/lib/classic_pagination/pagination.rb b/lib/classic_pagination/pagination.rb
index 3fa1109f06b3f583c4490ddc00db838fe0199645..c59c1a90159fae9990d0fc499ed0437427d1f405 100644 (file)
--- a/lib/classic_pagination/pagination.rb
+++ b/lib/classic_pagination/pagination.rb
@@ -61,24 +61,24 @@ module ActionController
       DEFAULT_OPTIONS[:group] = nil
     else
       # A hash holding options for controllers using macro-style pagination
       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,
 
       # The default options for pagination
       DEFAULT_OPTIONS = {
         :class_name => nil,
         :singular_name => nil,

-        :per_page   => 10,
+        :per_page => 10,

         :conditions => nil,
         :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:
     end
 
     def self.included(base) #:nodoc:


@@ -93,12 +93,13 @@ module ActionController
       valid_options << :actions unless in_action
 
       unknown_option_keys = options.keys - valid_options
       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[: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
     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
 
     # 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 <tt>:actions</tt> option).
       #
       # Record model for all actions in a controller (or certain actions if
       # specified with the <tt>:actions</tt> option).
       #


@@ -146,17 +147,18 @@ module ActionController
       def paginate(collection_id, options = {})
         Pagination.validate_options!(collection_id, options, false)
         module_eval do
       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
 
           OPTIONS[self] ||= {}
           OPTIONS[self][collection_id] = options
         end
       end
     end
 

+    protected
+

     def create_paginators_and_retrieve_collections #:nodoc:
       Pagination::OPTIONS[self.class].each do |collection_id, options|
     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)
 
         paginator, collection =
           paginator_and_collection_for(collection_id, options)


@@ -200,9 +202,7 @@ module ActionController
       collection.offset(paginator.current.offset).limit(options[:per_page])
     end
 
       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:
       klass = options[:class_name].constantize
 
     def paginator_and_collection_for(_collection_id, options) #:nodoc:
       klass = options[:class_name].constantize


@@ -214,8 +214,6 @@ module ActionController
       [paginator, collection]
     end
 
       [paginator, collection]
     end
 

-    private :paginator_and_collection_for
-

     # A class representing a paginator for an Active Record collection.
     class Paginator
       include Enumerable
     # 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)
       # 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
           items_per_page <= 0
 
         @controller = controller


@@ -242,10 +240,8 @@ 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)
       # 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
       end
         page = page.to_i
         @current_page_number = has_page_number?(page) ? page : 1
       end


@@ -254,19 +250,19 @@ module ActionController
       def current_page
         @current_page ||= self[@current_page_number]
       end
       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
 
       # 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
 
       # 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
 
       # Returns the number of pages in this paginator.
       def page_count


@@ -274,11 +270,11 @@ module ActionController
                           1
                         else
                           q, r = @item_count.divmod(@items_per_page)
                           1
                         else
                           q, r = @item_count.divmod(@items_per_page)

-                          r == 0 ? q : q + 1
+                          r.zero? ? q : q + 1

                         end
       end
 
                         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)
 
       # Returns true if this paginator contains the page of index +number+.
       def has_page_number?(number)


@@ -311,13 +307,15 @@ module ActionController
           @number = 1 unless @paginator.has_page_number? @number
         end
         attr_reader :paginator, :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
         # same page number).
         def ==(other)
           return false if other.nil?
 
         # 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
           @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)
         # 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
 
           @number <=> other.number
         end
 


@@ -359,13 +358,13 @@ module ActionController
         # Returns a new Page object representing the page just before this
         # page, or nil if this is the first page.
         def previous
         # Returns a new Page object representing the page just before this
         # page, or nil if this is the first page.
         def previous

-          if first? then nil else @paginator[@number - 1] end
+          first? ? nil : @paginator[@number - 1]

         end
 
         # Returns a new Page object representing the page just after this
         # page, or nil if this is the last page.
         def next
         end
 
         # Returns a new Page object representing the page just after this
         # page, or nil if this is the last page.
         def next

-          if last? then nil else @paginator[@number + 1] end
+          last? ? nil : @paginator[@number + 1]

         end
 
         # Returns a new Window object for this page with the specified
         end
 
         # Returns a new Window object for this page with the specified


@@ -393,12 +392,12 @@ module ActionController
           @page = page
           self.padding = padding
         end
           @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)
 
         # 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)
                      @paginator[@page.number - @padding]
           # Find the beginning and end pages of the window
           @first = if @paginator.has_page_number?(@page.number - @padding)
                      @paginator[@page.number - @padding]


@@ -411,13 +410,12 @@ module ActionController
                     @paginator.last
                   end
         end
                     @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
 
         # 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
       end
     end
   end