Ruby on Rails：更新数据库中的布尔记录

Question

if my database is set to as false, whats the best practice in updating boolean value in database?

I can do it on console:

>> u = User.find_by_id(1)

What do I do next?

Thanks

Answer 1

If you want to toggle the boolean:

u.toggle!(:<attribute>)  # Toggles the boolean and saves without validations
u.toggle(:<attribute>)   # Toggles the boolean and does not save

If you want to set the boolean:

u.<attribute> = [true|false]

If you want to update the boolean immediately:

u.update_column(:<attribute>, [true|false])  # Doesn't update timestamps or call callbacks
u.update_attribute(:<attribute>, [true|false])  # Updates timestamps and triggers any callbacks

Answer 2

>> u.boolean_property = false
>> u.save

where boolean_property is the name of the property that you want to set to false.

That is the simplest way (just setting it directly), and there are other ways, depending on your needs: http://www.davidverhasselt.com/2011/06/28/5-ways-to-set-attributes-in-activerecord/