Ruby on Rails
Identification amicale

Introduction

Rails Quickstart

rails new my_app
cd my_app

Gemfile

gem 'friendly_id', '~> 5.1.0' # Note: You MUST use 5.0.0 or greater for Rails 4.0+
rails generate friendly_id
rails generate scaffold user name:string slug:string:uniq
rake db:migrate

éditer app / models / user.rb

class User < ApplicationRecord
  extend FriendlyId
  friendly_id :name, use: :slugged
end

User.create! name: "Joe Schmoe"

# Change User.find to User.friendly.find in your controller
User.friendly.find(params[:id])

rails server
GET http://localhost:3000/users/joe-schmoe

# If you're adding FriendlyId to an existing app and need
# to generate slugs for existing users, do this from the
# console, runner, or add a Rake task:
User.find_each(&:save)

Finders are no longer overridden by default. If you want to do friendly finds, you must do Model.friendly.find rather than Model.find. You can however restore FriendlyId 4-style finders by using the :finders addon


friendly_id :foo, use: :slugged # you must do MyClass.friendly.find('bar')
#or...
friendly_id :foo, use: [:slugged, :finders] # you can now do MyClass.find('bar')

Une nouvelle fonctionnalité "candidats" qui facilite la mise en place d'une liste de slugs alternatifs pouvant être utilisés pour distinguer de manière unique les enregistrements, plutôt que d'ajouter une séquence. Par exemple:

class Restaurant < ActiveRecord::Base
  extend FriendlyId
  friendly_id :slug_candidates, use: :slugged

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

Définir la longueur limite du slug en utilisant la gem friendly_id?

def normalize_friendly_id(string)
   super[0..40]
end