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Ruby

Posted by Matthew Hartwig
Matthew Hartwig
3,941 Points

Using AJax - Prevent users from creating multiple friendships

There is a delay from when I click Add Friend until the javascript runs and sends the friend request. The user can click the Add Friend button repeatedly during this time resulting in multiple friend requests. Is there any way to prevent this.

2 Answers

Jason Seifer
STAFF
Jason Seifer
Treehouse Guest Teacher
Jason Seifer
Jason Seifer
Treehouse Guest Teacher

Great question, Matthew! You can add a uniqueness validation that's scoped to the friend id in the user friendship model. Check out the rails guide on the topic for more info:

http://edgeguides.rubyonrails.org/active_record_validations.html

Matthew Hartwig
Matthew Hartwig
3,941 Points
Matthew Hartwig
Matthew Hartwig
3,941 Points

That worked! Thanks Jason.

Here's the code I added

validates :user_id, uniqueness: true