1 files changed, 23 insertions, 6 deletions
diff --git a/activerecord/lib/active_record/core.rb b/activerecord/lib/active_record/core.rb
index e1a0b2ecf8..c983bc0d93 100644
--- a/activerecord/lib/active_record/core.rb
+++ b/activerecord/lib/active_record/core.rb
@@ -99,7 +99,7 @@ module ActiveRecord
       ##
       # :singleton-method:
       # Specify whether schema dump should happen at the end of the
-      # db:migrate rake task. This is true by default, which is useful for the
+      # db:migrate rails command. This is true by default, which is useful for the
       # development environment. This should ideally be false in the production
       # environment where dumping schema is rarely needed.
       mattr_accessor :dump_schema_after_migration, instance_writer: false, default: true
@@ -139,11 +139,6 @@ module ActiveRecord
     end
 
     module ClassMethods # :nodoc:
-      def allocate
-        define_attribute_methods
-        super
-      end
-
       def initialize_find_by_cache # :nodoc:
         @find_by_statement_cache = { true => Concurrent::Map.new, false => Concurrent::Map.new }
       end
@@ -350,6 +345,28 @@ module ActiveRecord
     end
 
     ##
+    # Initializer used for instantiating objects that have been read from the
+    # database.  +attributes+ should be an attributes object, and unlike the
+    # `initialize` method, no assignment calls are made per attribute.
+    #
+    # :nodoc:
+    def init_from_db(attributes)
+      init_internals
+
+      @new_record = false
+      @attributes = attributes
+
+      self.class.define_attribute_methods
+
+      yield self if block_given?
+
+      _run_find_callbacks
+      _run_initialize_callbacks
+
+      self
+    end
+
+    ##
     # :method: clone
     # Identical to Ruby's clone method.  This is a "shallow" copy.  Be warned that your attributes are not copied.
     # That means that modifying attributes of the clone will modify the original, since they will both point to the