In Rails Console. how to update a field for all records?

Question

how can I update a table Notification.email to all true in console?

In console, I'd like to loop through all the records in the table and set email = true.

Ideas?

Answer 1

this should work

Notification.all.each do |n| n.update_attribute(:email, true); end

edit: made custom from bricker:

Notification.all.each { |n| n.update_attribute(:email, true) }

Answer 2

You're looking for update_all. See doc.

Beware, no callbacks are triggered this way.

Answer 3

You can use:

Notification.update_all(email: true)

If you additionally have a condition while updating you should use:

Notification.find_each { |n| n.email = (n.id > 100) ? true : false }

Use Something.all is bad idea for huge db table.