Let's suppose I have a table called 'user_products' and a corresponding model called UserProduct in my Rails application. I also have a field called 'is_temporary' in my table. Now suppose I want to run a query like this but using the ActiveRecord abstraction layer:
UPDATE user_products SET is_temporary = false WHERE user_id = 12345;
Is there a way I can do this using ActiveRecord? Maybe something along the lines of
UserProduct.find_by_user_id(12345).update_attributes(:is_temporary => false)
I'd like only one query to be run for this to happen.
This is an old post. I updated this in case someone checks it :) (Rails 4)
DEPRECATION: Relation#update_all with conditions is deprecated. Please use Item.where(color: 'red').update_all(...) rather than Item.update_all(..., color: 'red').
So the query will be
UserProduct.where(:user_id => 12345).update_all(:is_temporary => false)
Cheers
UserProduct.update_all({:is_temporary => false}, {:user_id => 12345})
Although beware: this skips all validations and callbacks, since no instance of UserProduct will ever be instanciated.
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