How to handle ActiveRecord::RecordNotUnique error

Question

I'm new to Ruby on Rails and I've been searching how to handle error on Ruby and found this links but none of them works.

redirect_to is not working into rescue block

https://www.ruby-forum.com/t/begin-rescue-not-working/118832/5

Rails 3: Handle ActiveRecord::RecordNotUnique Exception

https://www.honeybadger.io/blog/ruby-exception-vs-standarderror-whats-the-difference/

On my create method I have this


      def create
        @departments = Spree::Department.new(department_params)

        begin
          @departments.save
          flash[:success] = 'Department Created'
          redirect_to admin_departments_path
        rescue ActiveRecord::RecordNotUnique => e
          flash[:notice] = 'Department name already exists'
          redirect_to admin_departments_path
          return
        end
      end

but the problem is it doesn't go to rescue block so it doesn't render the flash[:notice] it will render flash[:success] and redirect in short it will just do the begin even though it errors out.

Also on @department.save when I add the ! (bang) if I input a name that is not unique I will get an error Validation failed: Name has already been taken which I wanted but it won't redirect instead it will go to error screen.

Is there something missing here?

try changing the `ActiveRecord::RecordNotUnique` to `ActiveRecord::RecordInvalid` and with the `save!` — Subash, May 01 '19 at 23:24
@Subash not all heroes are in the air flying sometimes they're behind the keyboard coding! thank you champ! can you make this as an answer so I can Accept this? — aRtoo, May 01 '19 at 23:31
btw how did you know that its `ActiveRecord::RecordInvalid`? — aRtoo, May 01 '19 at 23:32

score 2 · Accepted Answer · answered May 01 '19 at 23:38

2

You can use ActiveRecord::RecordInvalid instead of ActiveRecord::RecordNotUnique because thats the exception that gets raised by save! and create!.

I think I came across that, don't remember when, have a look here

answered May 01 '19 at 23:38

Subash

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Thanks my guy. you saved me. 2hrs was wasted. – aRtoo May 01 '19 at 23:40

How to handle ActiveRecord::RecordNotUnique error

1 Answers1