如何将信息添加到自定义用户字段（Devise）

Question

I create a custom field in user (using a Devise) in my Rails project, varible called information. Type is string. Somethigh like that: current_user.information How can I add another string to end of this string? I need a method then do like this:

current_user.information << some_varible 

And save changes.

Answer 1

If the value of current_user.information is a string you can append to it like you stated.

s = current_user.information
s << "New string addition"
s.save

Answer 2

Except the << method mentioned on @Rockwell's answer, you can achieve your goal by using String#concat as well:

s = current_user.information
s.concat("New string addition")
s.save