style(Rails/Delegate): safe autocorrect

.rubocop_todo.yml

@@ -688,27 +688,6 @@ Rails/Date:
     - 'spec/mongoid/persistable/maxable_spec.rb'
     - 'spec/mongoid/persistable/minable_spec.rb'
 
-# Offense count: 22
-# This cop supports safe autocorrection (--autocorrect).
-# Configuration parameters: EnforceForPrefixed.
-Rails/Delegate:
-  Exclude:
-    - 'lib/mongoid/association/many.rb'
-    - 'lib/mongoid/association/referenced/has_many/enumerable.rb'
-    - 'lib/mongoid/association/relatable.rb'
-    - 'lib/mongoid/clients.rb'
-    - 'lib/mongoid/clients/options.rb'
-    - 'lib/mongoid/contextual/memory.rb'
-    - 'lib/mongoid/contextual/mongo.rb'
-    - 'lib/mongoid/contextual/none.rb'
-    - 'lib/mongoid/criteria.rb'
-    - 'lib/mongoid/document.rb'
-    - 'lib/mongoid/extensions/nil_class.rb'
-    - 'lib/mongoid/extensions/symbol.rb'
-    - 'lib/mongoid/fields/foreign_key.rb'
-    - 'lib/mongoid/findable.rb'
-    - 'lib/mongoid/scopable.rb'
-
 # Offense count: 91
 # Configuration parameters: Include.
 # Include: spec/**/*.rb, test/**/*.rb

lib/mongoid/association/many.rb

@@ -9,7 +9,7 @@ class Many < Association::Proxy
       extend Forwardable
       include ::Enumerable
 
-      def_delegators :criteria, :avg, :max, :min, :sum
+      def_delegators :criteria, :avg, :max, :min, :sum, :unscoped
       def_delegators :_target, :length, :size, :any?
 
       # Is the association empty?
@@ -166,17 +166,6 @@ def serializable_hash(options = {})
         _target.map { |document| document.serializable_hash(options) }
       end
 
-      # Get a criteria for the embedded documents without the default scoping
-      # applied.
-      #
-      # @example Get the unscoped criteria.
-      #   person.addresses.unscoped
-      #
-      # @return [ Mongoid::Criteria ] The unscoped criteria.
-      def unscoped
-        criteria.unscoped
-      end
-
       private
 
       def _session

lib/mongoid/association/referenced/has_many/enumerable.rb

@@ -20,6 +20,7 @@ class Enumerable
           attr_accessor :_added, :_loaded, :_unloaded
 
           def_delegators [], :is_a?, :kind_of?
+          def_delegators :entries, :inspect, :uniq
 
           # Check if the enumerable is equal to the other object.
           #
@@ -288,17 +289,6 @@ def include?(doc)
             _unloaded.exists?(_id: doc._id) || _added.key?(doc._id)
           end
 
-          # Inspection will just inspect the entries for nice array-style
-          # printing.
-          #
-          # @example Inspect the enumerable.
-          #   enumerable.inspect
-          #
-          # @return [ String ] The inspected enum.
-          def inspect
-            entries.inspect
-          end
-
           # Return all the documents in the enumerable that have been _loaded or
           # _added.
           #
@@ -455,18 +445,6 @@ def as_json(options = {})
             entries.as_json(options)
           end
 
-          # Return all the unique documents in the enumerable.
-          #
-          # @note This operation loads all documents from the database.
-          #
-          # @example Get all the unique documents.
-          #   enumerable.uniq
-          #
-          # @return [ Array<Mongoid::Document> ] The unique documents.
-          def uniq
-            entries.uniq
-          end
-
           private
 
           def set_base(document)

lib/mongoid/association/relatable.rb

@@ -222,9 +222,7 @@ def foreign_key_setter
       # The atomic path for this association.
       #
       # @return [  Mongoid::Atomic::Paths::Root ] The atomic path object.
-      def path(document)
-        relation.path(document)
-      end
+      delegate :path, to: :relation
 
       # Gets the setter for the field that sets the type of document on a
       # polymorphic association.

lib/mongoid/clients.rb

@@ -27,9 +27,7 @@ class << self
       #   Mongoid::Clients.clear
       #
       # @return [ Array ] The empty clients.
-      def clear
-        clients.clear
-      end
+      delegate :clear, to: :clients
 
       # Get the default client.
       #

lib/mongoid/clients/options.rb

@@ -54,9 +54,7 @@ def collection(parent = nil)
       #
       # @return [ String ] The collection name for the current persistence
       #   context.
-      def collection_name
-        persistence_context.collection_name
-      end
+      delegate :collection_name, to: :persistence_context
 
       # Get the database client for the document's current persistence context.
       #
@@ -127,9 +125,7 @@ module ClassMethods
         #
         # @return [ String ] The database client name for the current
         #   persistence context.
-        def client_name
-          persistence_context.client_name
-        end
+        delegate :client_name, to: :persistence_context
 
         # Get the collection name for the current persistence context of the
         # document class.
@@ -139,9 +135,7 @@ def client_name
         #
         # @return [ String ] The collection name for the current persistence
         #   context.
-        def collection_name
-          persistence_context.collection_name
-        end
+        delegate :collection_name, to: :persistence_context
 
         # Get the database name for the current persistence context of the
         # document class.
@@ -151,9 +145,7 @@ def collection_name
         #
         # @return [ String ] The database name for the current persistence
         #   context.
-        def database_name
-          persistence_context.database_name
-        end
+        delegate :database_name, to: :persistence_context
 
         # Get the collection for the current persistence context of the
         # document class.
@@ -163,9 +155,7 @@ def database_name
         #
         # @return [ Mongo::Collection ] The collection for the current
         #   persistence context.
-        def collection
-          persistence_context.collection
-        end
+        delegate :collection, to: :persistence_context
 
         # Get the client for the current persistence context of the
         # document class.

lib/mongoid/contextual/memory.rb

@@ -230,9 +230,7 @@ def last!
       #   context.length
       #
       # @return [ Integer ] The matching length.
-      def length
-        documents.length
-      end
+      delegate :length, to: :documents
       alias_method :size, :length
 
       # Limits the number of documents that are returned.

lib/mongoid/contextual/none.rb

@@ -334,9 +334,7 @@ def third_to_last!
       #   context.length
       #
       # @return [ Integer ] Always zero.
-      def length
-        entries.length
-      end
+      delegate :length, to: :entries
       alias_method :size, :length
       alias_method :find_first, :first
       alias_method :one, :first

lib/mongoid/criteria.rb

@@ -157,9 +157,7 @@ def embedded?
     #   criteria.extract_id
     #
     # @return [ Object ] The id.
-    def extract_id
-      selector.extract_id
-    end
+    delegate :extract_id, to: :selector
 
     # Adds a criterion to the +Criteria+ that specifies additional options
     # to be passed to the Ruby driver, in the exact format for the driver.

lib/mongoid/document.rb

@@ -57,9 +57,7 @@ def freeze
     #   document.frozen?
     #
     # @return [ true | false ] True if frozen, else false.
-    def frozen?
-      attributes.frozen?
-    end
+    delegate :frozen?, to: :attributes
 
     # Delegates to identity in order to allow two records of the same identity
     # to work with something like:
@@ -71,9 +69,7 @@ def frozen?
     #   document.hash
     #
     # @return [ Integer ] The hash of the document's identity.
-    def hash
-      identity.hash
-    end
+    delegate :hash, to: :identity
 
     # A Document's is identified absolutely by its class and database id:
     #

lib/mongoid/extensions/nil_class.rb

@@ -22,9 +22,7 @@ def __setter__
       #   nil.collectionize
       #
       # @return [ String ] A blank string.
-      def collectionize
-        to_s.collectionize
-      end
+      delegate :collectionize, to: :to_s
     end
   end
 end

lib/mongoid/extensions/symbol.rb

@@ -12,9 +12,7 @@ module Symbol
       #   :_id.mongoid_id?
       #
       # @return [ true | false ] If the symbol is :id or :_id.
-      def mongoid_id?
-        to_s.mongoid_id?
-      end
+      delegate :mongoid_id?, to: :to_s
 
       module ClassMethods
 

lib/mongoid/fields/foreign_key.rb

@@ -111,15 +111,7 @@ def object_id_field?
           association.polymorphic? ? true : association.klass.using_object_ids?
       end
 
-      # Returns true if an array, false if not.
-      #
-      # @example Is the field resizable?
-      #   field.resizable?
-      #
-      # @return [ true | false ] If the field is resizable.
-      def resizable?
-        type.resizable?
-      end
+      def_delegators :type, :resizable?
 
       private
 

lib/mongoid/findable.rb

@@ -17,10 +17,12 @@ module Findable
     def_delegators :with_default_scope,
                    :aggregates,
                    :avg,
+                   :count,
                    :create_with,
                    :distinct,
                    :each,
                    :each_with_index,
+                   :estimated_count,
                    :extras,
                    :fifth,
                    :fifth!,
@@ -63,28 +65,6 @@ module Findable
                    :update,
                    :update_all
 
-    # Returns a count of records in the database.
-    # If you want to specify conditions use where.
-    #
-    # @example Get the count of matching documents.
-    #   Person.count
-    #   Person.where(title: "Sir").count
-    #
-    # @return [ Integer ] The number of matching documents.
-    def count
-      with_default_scope.count
-    end
-
-    # Returns an estimated count of records in the database.
-    #
-    # @example Get the count of matching documents.
-    #   Person.estimated_count
-    #
-    # @return [ Integer ] The number of matching documents.
-    def estimated_count
-      with_default_scope.estimated_count
-    end
-
     # Returns true if count is zero
     #
     # @example Are there no saved documents for this model?

lib/mongoid/scopable.rb

@@ -193,9 +193,7 @@ def unscoped
       #   Model.with_default_scope
       #
       # @return [ Mongoid::Criteria ] The criteria.
-      def with_default_scope
-        queryable.with_default_scope
-      end
+      delegate :with_default_scope, to: :queryable
       alias_method :criteria, :with_default_scope
 
       # Pushes the provided criteria onto the scope stack, and removes it after the