Rails 3: how to generate custom error message from failed validation

Question

I'm using

validates :feed_id, presence: true, uniqueness: true

How should I be generating a custom error message to specify that the user has already subscribed to this feed (the feed_id) field is a duplicate

I know I can just do validate_uniqueness_of but it would clutter up the code unnecessarily. How do I pass a specific error message if uniqueness validation fails??

jdoe · Accepted Answer · 2012-05-07 20:07:46Z

27

Put a hash with the key message and desired message as the value instead of true:

validates :feed_id, presence: true, uniqueness: {message: "already subscribed"}

answered May 7, 2012 at 20:07

jdoe

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