Use instance variable in "delete_if" method in ruby on rails

Question

I am using @registers.delete_if { |r| r.location_id != @location_id && @location_id.present?} to filter the registers so that only the ones with the chosen location_id are kept, if anything was chosen at least. The thing is that using the @location_id.present? works just fine but checking if the id's are the same doesn't. If I check hardcoded with a number like this: r.location_id != 5 it does work.

Muhammad Ali · Accepted Answer · 2016-04-18 10:57:52Z

2

Try it like this :

@registers.delete_if { |r| r.location_id != @location_id.to_i && @location_id.present?}

But I think to do it better you should do it like :

@registers.delete_if { |r| r.location_id != @location_id.to_i if @location_id.present?}

answered Apr 18, 2016 at 10:57

Muhammad Ali

2,18115 silver badges20 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Edito Over a year ago

Only possible after 10 minutes

Collectives™ on Stack Overflow

Use instance variable in "delete_if" method in ruby on rails

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related