Ruby on Rails
Vänligt ID

Introduktion

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

redigera app / modeller / 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')

En ny "kandidat" -funktion som gör det enkelt att sätta upp en lista med alternativa sniglar som kan användas för att på ett unikt sätt särskilja poster, snarare än att lägga till en sekvens. Till exempel:

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

Ställ in gränslängden för snigeln med hjälp av friendly_id pärla?

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