method

initialize_copy

v3.0.0 - Show latest stable - Class: ActiveRecord::Base

initialize_copy(other)

public

Cloned objects have no id assigned and are treated as new records. Note that this is a "shallow" clone as it copies the object’s attributes only, not its associations. The extent of a "deep" clone is application specific and is therefore left to the application to implement according to its need.

# File activerecord/lib/active_record/base.rb, line 1423
      def initialize_copy(other)
        _run_after_initialize_callbacks if respond_to?(:_run_after_initialize_callbacks)
        cloned_attributes = other.clone_attributes(:read_attribute_before_type_cast)
        cloned_attributes.delete(self.class.primary_key)

        @attributes = cloned_attributes

        @changed_attributes = {}
        attributes_from_column_definition.each do |attr, orig_value|
          @changed_attributes[attr] = orig_value if field_changed?(attr, orig_value, @attributes[attr])
        end

        clear_aggregation_cache
        clear_association_cache
        @attributes_cache = {}
        @new_record = true
        ensure_proper_type

        if scope = self.class.send(:current_scoped_methods)
          create_with = scope.scope_for_create
          create_with.each { |att,value| self.send("#{att}=", value) } if create_with
        end
      end

initialize_copy

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