method

will_save_change_to_attribute?

v7.1.3.4 - Show latest stable - 0 notes - Class: ActiveRecord::AttributeMethods::Dirty

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What's this?

will_save_change_to_attribute?(attr_name, **options) public

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 specified, this method will return false unless the original value is equal to the given value.
to: When specified, this method will return false unless the value will be changed to the given value.

Show source

# File activerecord/lib/active_record/attribute_methods/dirty.rb, line 138
      def will_save_change_to_attribute?(attr_name, **options)
        mutations_from_database.changed?(attr_name.to_s, **options)
      end

will_save_change_to_attribute?

Related methods

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