In Rails, I want to update my user record. I'm trying to use this command:
@user=User.update_attributes(:name=> params[:name], :user=> params[:username], :pass=> params[:password])
But I always get the error:
undefined method `update_attributes'
What's the right way to update my user?
Update for Rails v >= 6.1
Use update method asupdate_attributes method was removed as part of Rails 6.1 Release
@user.update(name: "ABC", pass: "12345678")
For Rails v < 6.1
update_attributes is an instance method not a class method, so first thing you need to call it on an instance of User class.
Get the user you want to update : e.g. Say you want to update a User with id 1
@user = User.find_by(id: 1)
now if you want to update the user's name and password, you can do
either
@user.update(name: "ABC", pass: "12345678")
or
@user.update_attributes(name: "ABC", pass: "12345678")
Use it accordingly in your case.
For more reference you can refer to Ruby on Rails Guides.
You can use update_all method for updating all records.
It is a class method so you can call it as
Following code will update name of all User records and set it to "ABC"
User.update_all(name: "ABC")
It seems that as of Rails 6.1, the "update_attributes" method is not working anymore! You must use the "update" method like this:
@user=User.update(:name=> params[:name], :user=> params[:username], :pass=> params[:password])
update_attributes I thought I was going crazy.
@user.update(...) also works in rails 6 and it fully replaces @user.update_attributes(...) from rails 5 code. You don't need to convert it to a class instance aka User.update call where you can get later issues when updating nested models (while @user.update also works on nested models just like the deprecated method update_attributes did in rails 5).
