ArgumentError: wrong number of arguments (1 for 2)

Question

I\'m very new to Rails, MVC, and CRUD, and I\'m trying to use the update method to change the amount of votes on a post. I have the following code in my Posts Controller upd

Answer 1

update_column takes two arguments. You are only passing one.

Instead of:

@post.update_column(:ups => @post[:ups] + 1)

Try:

@post.update_column(:ups, @post[:ups] + 1)

This may seem like two arguments:

:ups => @post[:ups] + 1

but it's actually one hash.

With the more commonly used update_attributes, you can pass a hash:

@post.update_attributes(:ups => @post[:ups] + 1)