method

touch

v3.2.13 - Show latest stable - 1 note - Class: ActiveRecord::Callbacks

touch(*) public

No documentation

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# File activerecord/lib/active_record/callbacks.rb, line 257
    def touch(*) #:nodoc:
      run_callbacks(:touch) { super }
    end

September 11, 2013 - (v3.2.13)

0 thanks

touch is used to update the updated_at column you can create a model instance and update the updated_at value on it

Let say we have one user model

user = User.first

next you can write

so it will run the query for you

UPDATE `users` SET `updated_at` = ‘current_date_time’ WHERE `users`.`id` = 1

Alternatively, to update some other column with the current date and time use:

model.touch(:column_name)