How to prevent duplicate records in Rails

Question

It's probably trivial question but i can't find any solutions to make this right.

def make_thing
  @thing = Thing.new

  if @thing.save
    redirect_to some_path
  end
end

<%= link_to "Make Thing", controller: :things, action: :make_thing %>

Sending multiple requests(by pressing "Make Thing" link) to "make_thing" action will multiple call save method before it would be redirected. So this will create multiple records. How can i record only single "thing" and redirect then?

http://edgeguides.rubyonrails.org/active_record_validations.html — Roman Kiselenko, Jul 28 '14 at 14:57

score 0 · Accepted Answer · edited May 23 '17 at 10:26

0

You should use disable_with (Rails 4: Disable submit button after click) and check uniqueness of the record at model- or database-level.

UPD:

You can do something like this for disabling with image (slim):

= link_to "#", data: { disable_with: "<span class='with_image' class='with_image'>Submitting...</span>" } span | Submit

And css:

.with_image { background: url('/assets/test.jpg'); }

But it is better to use jquery loader or something like that... Hope I helped with my answer.

edited May 23 '17 at 10:26

Community

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answered Jul 28 '14 at 14:58

Vitaly

161
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is it possible to use an image as value for disable_with? – stackoverflow Jul 28 '14 at 16:42

How to prevent duplicate records in Rails

1 Answers1