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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 00db5d33762dc797a3eac782a16667d14d44bed2..c59c1a90159fae9990d0fc499ed0437427d1f405 100644 (file)
--- a/lib/classic_pagination/pagination.rb
+++ b/lib/classic_pagination/pagination.rb
@@ -67,17 +67,17 @@ module ActionController
       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
 
@@ -93,9 +93,10 @@ module ActionController
       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])
@@ -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 <tt>:actions</tt> option).
       #
@@ -146,16 +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
 
+    protected
+
     def create_paginators_and_retrieve_collections #:nodoc:
       Pagination::OPTIONS[self.class].each do |collection_id, options|
-        next if options[:actions] && !options[:actions].include?(action_name)
+        next if options[:actions]&.exclude?(action_name)
 
         paginator, collection =
           paginator_and_collection_for(collection_id, options)
@@ -199,9 +202,7 @@ 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:
       klass = options[:class_name].constantize
@@ -213,8 +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
@@ -225,7 +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
@@ -241,10 +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)
-        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
@@ -273,7 +270,7 @@ module ActionController
                           1
                         else
                           q, r = @item_count.divmod(@items_per_page)
-                          r == 0 ? q : q + 1
+                          r.zero? ? q : q + 1
                         end
       end
 
@@ -310,6 +307,7 @@ module ActionController
           @number = 1 unless @paginator.has_page_number? @number
         end
         attr_reader :paginator, :number
+
         alias to_i number
 
         # Compares two Page objects and returns true when they represent the
@@ -317,6 +315,7 @@ module ActionController
         # same page number).
         def ==(other)
           return false if other.nil?
+
           @paginator == other.paginator &&
             @number == other.number
         end
@@ -326,7 +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
 
@@ -392,12 +392,12 @@ 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)
                      @paginator[@page.number - @padding]
@@ -410,7 +410,6 @@ module ActionController
                     @paginator.last
                   end
         end
-        attr_reader :padding, :first, :last
 
         # Returns an array of Page objects in the current window.
         def pages