acts-as-taggable-on

Komutlar,

$ rails generate acts_as_taggable_on:migration
$ rake db:migrate

User model,

$ rails g model User name:string
$ rake db:migrate

İlişkisellik,

$ vim app/model/user.rb
class User < ActiveRecord::Base
  acts_as_taggable
  acts_as_taggable_on :skills, :interests
end

Konsol,

> @user = User.new(:name => "Bobby")
> @user.tag_list = ["awesome", "slick", "hefty"]
> @user.skill_list = ["joking", "clowning", "boxing"]
> @user.tag_list
=> ["awesome", "slick", "hefty"]
> @user.save

Tüm tag'leri bir arada görmek istersen,

> y ActsAsTaggableOn::Tag.all
ActsAsTaggableOn::Tag Load (0.3ms)  SELECT "tags".* FROM "tags"
---
- !ruby/object:ActsAsTaggableOn::Tag
  attributes:
    id: 1
    name: awesome
- !ruby/object:ActsAsTaggableOn::Tag
  attributes:
    id: 2
    name: slick
- !ruby/object:ActsAsTaggableOn::Tag
  attributes:
    id: 3
    name: hefty
- !ruby/object:ActsAsTaggableOn::Tag
  attributes:
    id: 4
    name: joking
- !ruby/object:ActsAsTaggableOn::Tag
  attributes:
    id: 5
    name: clowning
- !ruby/object:ActsAsTaggableOn::Tag
  attributes:
    id: 6
    name: boxing
=> nil

Kullanıcının tag'lerine bakalım,

> y User.last.tags
> y User.last.skills

Kullanıcıyı oluştururken doğrudan tag'leyebilirsin,

> User.create(name: "Frankie", skill_list: "joking, flying, eating")

burada "foo, bar" aslında ["foo", "bar"] ile aynı.

Bunları saydırmak mümkün,

> y User.skill_counts.all
---
- !ruby/object:ActsAsTaggableOn::Tag
  attributes:
    id: 4
    name: joking
    count: 2
- !ruby/object:ActsAsTaggableOn::Tag
  attributes:
    id: 5
    name: clowning
    count: 1
- !ruby/object:ActsAsTaggableOn::Tag
  attributes:
    id: 6
    name: boxing
    count: 1
- !ruby/object:ActsAsTaggableOn::Tag
  attributes:
    id: 7
    name: flying
    count: 1
- !ruby/object:ActsAsTaggableOn::Tag
  attributes:
    id: 8
    name: eating
    count: 1
=> nil
>

Ararken,

> y User.tagged_with("awesome").all
---
- !ruby/object:User
  attributes:
    id: 1
    name: Bobby
    created_at: 2012-06-04 06:56:31.410198000 Z
    updated_at: 2012-06-04 06:56:31.410198000 Z
=> nil
> y User.tagged_with("joking").all
---
- !ruby/object:User
  attributes:
    id: 1
    name: Bobby
    created_at: 2012-06-04 06:56:31.410198000 Z
    updated_at: 2012-06-04 06:56:31.410198000 Z
- !ruby/object:User
  attributes:
    id: 2
    name: Frankie
    created_at: 2012-06-04 07:03:04.630137000 Z
    updated_at: 2012-06-04 07:03:04.630137000 Z
=> nil
>

Daha fazlası,

> # hepsiyle eslessin
> User.tagged_with(["awesome", "cool"], :match_all => true)

> # herhangi birisiyle eslessin
> User.tagged_with(["awesome", "cool"], :any => true)

> # hicbirisiyle eslesmesin
> User.tagged_with(["awesome", "cool"], :exclude => true)

Tag ve skill'i şu olanları bul demek için,

> User.tagged_with(['awesome', 'cool'], :on => :tags, :any => true).
       tagged_with(['smart', 'joking'], :on => :skills, :any => true)

Relations

Girdi,

@bobby = User.find_by_name("Bobby")
@bobby.skill_list # => ["jogging", "diving"]

@frankie = User.find_by_name("Frankie")
@frankie.skill_list # => ["hacking"]

@tom = User.find_by_name("Tom")
@tom.skill_list # => ["hacking", "jogging", "diving"]

İlişki olanları bul,

@tom.find_related_skills # => [<User name="Bobby">,<User name="Frankie">]
@bobby.find_related_skills # => [<User name="Tom">]
@frankie.find_related_skills # => [<User name="Tom">]

Kaynak

• https://github.com/mbleigh/acts-as-taggable-on