Additional backport

lib/mongoid/association/bindable.rb

@@ -135,7 +135,7 @@ def bind_foreign_key(keyed, id)
       # @param [ Mongoid::Document ] typed The document that stores the type field.
       # @param [ String ] name The name of the model.
       def bind_polymorphic_type(typed, name)
-        return unless _association.type
+        return unless _association.type && !typed.frozen?
 
         try_method(typed, _association.type_setter, name)
       end
@@ -151,7 +151,7 @@ def bind_polymorphic_type(typed, name)
       # @param [ Mongoid::Document ] typed The document that stores the type field.
       # @param [ String ] name The name of the model.
       def bind_polymorphic_inverse_type(typed, name)
-        return unless _association.inverse_type
+        return unless _association.inverse_type && !typed.frozen?
 
         try_method(typed, _association.inverse_type_setter, name)
       end
@@ -167,7 +167,7 @@ def bind_polymorphic_inverse_type(typed, name)
       # @param [ Mongoid::Document ] doc The base document.
       # @param [ Mongoid::Document ] inverse The inverse document.
       def bind_inverse(doc, inverse)
-        return unless doc.respond_to?(_association.inverse_setter)
+        return unless doc.respond_to?(_association.inverse_setter) && !doc.frozen?
 
         try_method(doc, _association.inverse_setter, inverse)
       end

lib/mongoid/association/embedded/embedded_in/proxy.rb

@@ -4,15 +4,13 @@ module Mongoid
   module Association
     module Embedded
       class EmbeddedIn
-
         # Transparent proxy for embedded_in associations.
         # An instance of this class is returned when calling the
         # association getter method on the child document. This
         # class inherits from Mongoid::Association::Proxy and forwards
         # most of its methods to the target of the association, i.e.
         # the parent document.
         class Proxy < Association::One
-
           # Instantiate a new embedded_in association.
           #
           # @example Create the new association.

lib/mongoid/association/embedded/embeds_many/proxy.rb

@@ -6,7 +6,6 @@ module Mongoid
   module Association
     module Embedded
       class EmbedsMany
-
         # Transparent proxy for embeds_many associations.
         # An instance of this class is returned when calling the
         # association getter method on the parent document. This
@@ -18,7 +17,6 @@ class Proxy < Association::Many
 
           # Class-level methods for the Proxy class.
           module ClassMethods
-
             # Returns the eager loader for this association.
             #
             # @param [ Array<Mongoid::Association> ] associations The

lib/mongoid/association/embedded/embeds_one/proxy.rb

@@ -4,15 +4,13 @@ module Mongoid
   module Association
     module Embedded
       class EmbedsOne
-
         # Transparent proxy for embeds_one associations.
         # An instance of this class is returned when calling the
         # association getter method on the parent document. This
         # class inherits from Mongoid::Association::Proxy and forwards
         # most of its methods to the target of the association, i.e.
         # the child document.
         class Proxy < Association::One
-
           # The valid options when defining this association.
           #
           # @return [ Array<Symbol> ] The allowed options when defining this association.

lib/mongoid/association/macros.rb

@@ -2,7 +2,6 @@
 
 module Mongoid
   module Association
-
     # This module contains the core macros for defining associations between
     # documents. They can be either embedded or referenced.
     module Macros
@@ -58,7 +57,6 @@ def associations
 
       # Class methods for associations.
       module ClassMethods
-
         # Adds the association back to the parent document. This macro is
         # necessary to set the references from the child back to the parent
         # document. If a child does not define this association calling

lib/mongoid/association/nested/many.rb

@@ -176,7 +176,9 @@ def update_nested_relation(parent, id, attrs)
           first = existing.first
           converted = first ? convert_id(first.class, id) : id
 
-          if existing.exists?(_id: converted)
+          # The next line cannot be written as `existing.exists?(_id: converted)`,
+          # otherwise tests will fail.
+          if existing.where(_id: converted).exists? # rubocop:disable Rails/WhereExists
             # document exists in association
             doc = existing.find(converted)
             if destroyable?(attrs)

lib/mongoid/association/proxy.rb

@@ -4,16 +4,17 @@
 
 module Mongoid
   module Association
-
     # This class is the superclass for all association proxy objects, and contains
     # common behavior for all of them.
     class Proxy
       extend Forwardable
 
+      alias_method :extend_proxy, :extend
+
       # Specific methods to prevent from being undefined.
       #
       # @api private
-      KEEP_METHODS = %i[
+      KEEPER_METHODS = %i[
         send
         object_id
         equal?
@@ -25,11 +26,9 @@ class Proxy
         extend_proxies
       ].freeze
 
-      alias_method :extend_proxy, :extend
-
       # We undefine most methods to get them sent through to the target.
       instance_methods.each do |method|
-        next if method.to_s.start_with?('__') || KEEP_METHODS.include?(method)
+        next if method.to_s.start_with?('__') || KEEPER_METHODS.include?(method)
 
         undef_method(method)
       end
@@ -201,7 +200,6 @@ def execute_callbacks_around(name, doc)
       end
 
       class << self
-
         # Apply ordering to the criteria if it was defined on the association.
         #
         # @example Apply the ordering.

lib/mongoid/association/referenced/belongs_to/proxy.rb

@@ -4,7 +4,6 @@ module Mongoid
   module Association
     module Referenced
       class BelongsTo
-
         # Transparent proxy for belong_to associations.
         # An instance of this class is returned when calling the
         # association getter method on the subject document.
@@ -99,7 +98,6 @@ def persistable?
           end
 
           class << self
-
             # Get the Eager object for this type of association.
             #
             # @example Get the eager loader object

lib/mongoid/association/referenced/has_and_belongs_to_many/proxy.rb

@@ -4,7 +4,6 @@ module Mongoid
   module Association
     module Referenced
       class HasAndBelongsToMany
-
         # Transparent proxy for has_and_belongs_to_many associations.
         # An instance of this class is returned when calling
         # the association getter method on the subject document.
@@ -13,10 +12,8 @@ class HasAndBelongsToMany
         # i.e. the array of documents on the opposite-side collection
         # which must be loaded.
         class Proxy < Referenced::HasMany::Proxy
-
           # Class-level methods for HasAndBelongsToMany::Proxy
           module ClassMethods
-
             # Get the eager loader object for this type of association.
             #
             # @example Get the eager loader object
@@ -90,7 +87,6 @@ def <<(*args)
             end
             unsynced(_base, foreign_key) and self
           end
-
           alias_method :push, :<<
 
           # Appends an array of documents to the association. Performs a batch

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

@@ -4,7 +4,6 @@ module Mongoid
   module Association
     module Referenced
       class HasMany
-
         # Transparent proxy for has_many associations.
         # An instance of this class is returned when calling the
         # association getter method on the subject document. This class

lib/mongoid/association/referenced/has_one/eager.rb

@@ -4,7 +4,6 @@ module Mongoid
   module Association
     module Referenced
       class HasOne
-
         # Eager class for has_one associations.
         class Eager < Association::Eager
 

lib/mongoid/association/referenced/has_one/proxy.rb

@@ -4,15 +4,13 @@ module Mongoid
   module Association
     module Referenced
       class HasOne
-
         # Transparent proxy for has_one associations.
         # An instance of this class is returned when calling the
         # association getter method on the subject document. This class
         # inherits from Mongoid::Association::Proxy and forwards most of
         # its methods to the target of the association, i.e. the
         # document on the opposite-side collection which must be loaded.
         class Proxy < Association::One
-
           # Class-level methods for HasOne::Proxy
           module ClassMethods
 

lib/mongoid/deprecation.rb

@@ -17,10 +17,10 @@ def initialize
     #
     # @return [ Array<Proc> ] The deprecation behavior.
     def behavior
-      @behavior ||= Array(lambda do |message, callstack, _deprecation_horizon, _gem_name|
+      @behavior ||= Array(lambda do |*args|
         logger = Mongoid.logger
-        logger.warn(message)
-        logger.debug(callstack.join("\n  ")) if debug
+        logger.warn(args[0])
+        logger.debug(args[1].join("\n  ")) if debug
       end)
     end
   end