why use rescue nil?

rubyonrails-talk
1

Hey all,

I saw this piece of code:

@user = User.find(params[:user_id]) rescue nil

why rescue with a nil here? If the user is not found, it will be nil anyway.

2

if the record is not found the find() throws an exception.

3

http://api.rubyonrails.org/classes/ActiveRecord/RecordNotFound.html

4

ok I thought it would return nil

thanks for response

5

Just a reminder: it’s just specific with the find(). find_by_* will return nil unless you add a ! (e,g, find_by_name!()) then it also returns the exception

6

It would take 30seconds to try it out in a console...

7

Alson you could just use where: @user = User.where(:id => params[:user_id]).first

8

Because the author forgot about find_by_id, which would accomplish the exact same thing (returning nil if no record was found).

–Matt Jones