instance method `will_save_change_to_attribute?`

Ruby on Rails 6.0.6

Since v5.2.8.1

Available in: v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

will_save_change_to_attribute?(attr_name, **options)

Will this attribute change the next time we save?

This method is useful in validations and before callbacks to determine if the next call to save will change a particular attribute. It can be invoked as will_save_change_to_name? instead of will_save_change_to_attribute("name").

Options

from When passed, this method will return false unless the original value is equal to the given option

to When passed, this method will return false unless the value will be changed to the given value

Parameters

attr_name req
options keyrest

Source

# File activerecord/lib/active_record/attribute_methods/dirty.rb, line 101
      def will_save_change_to_attribute?(attr_name, **options)
        mutations_from_database.changed?(attr_name.to_s, **options)
      end

Defined in activerecord/lib/active_record/attribute_methods/dirty.rb line 101 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::AttributeMethods::Dirty

Signature

Options

Parameters