method

saved_change_to_attribute?

v7.0.0 - Show latest stable - 0 notes - Class: ActiveRecord::AttributeMethods::Dirty

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What's this?

saved_change_to_attribute?(attr_name, **options) public

Did this attribute change when we last saved?

This method is useful in after callbacks to determine if an attribute was changed during the save that triggered the callbacks to run. It can be invoked as saved_change_to_name? instead of saved_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 was changed to the given value

Show source

# File activerecord/lib/active_record/attribute_methods/dirty.rb, line 78
      def saved_change_to_attribute?(attr_name, **options)
        mutations_before_last_save.changed?(attr_name.to_s, **options)
      end

saved_change_to_attribute?

Related methods

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