Rails4 Friendly_id Unique Slug Formatting

Question

I am using friendly_id gem for slugging my models. Since the slug has to be unique when i enter the same data to check i get a long hashed appending in the slug.

Answer 1

So if anyone comes across this at some point, I have an update I would have preferred to put as a comment in tirdadc's comment, but I can't (not enough reputation). So, here you go:

Tirdadc's answer is perfect, in theory, but unfortunately the id of an object isn't yet assigned at the point slug_candidates is called, so you need to do a little trickery. Here's the full way to get a slug with the id of the object in there:

class YourModel < ActiveRecord::Base
  extend FriendlyId
  friendly_id :slug_candidates, use: :slugged
  after_create :remake_slug

  # Try building a slug based on the following fields in
  # increasing order of specificity.
  def slug_candidates
    [
      :name,
      [:name, :id],
    ]
  end

  def remake_slug
    self.update_attribute(:slug, nil)
    self.save!
  end

  #You don't necessarily need this bit, but I have it in there anyways
  def should_generate_new_friendly_id?
    new_record? || self.slug.nil?
  end
end

So you're basically setting the slug after the creation of the object and then after the object is done being created, you nil out the slug and perform a save, which will reassign the slug (now with the id intact). Is saving an object in an after_create call dangerous? Probably, but it seems to work for me.