Likes on Hashtag

[woongy]

12 에서 작업한 기능을 수정해보기: polymorphic association 이라는 걸 써야할 거야 http://guides.rubyonrails.org/association_basics.html#polymorphic-associations

해시태그 라이크 버튼은 각 해시태그 페이지에만 있는 걸로 간단하게 :)

[spilist]

polymorphic과 has_many :through를 같이 쓰는게 상당히 번거로운 일이구나. 공부중임

[spilist]

모델에 대한 생각.

현재는

• Like belongs_to :user, :status
• User has_many :likes, dependent: :destroy
• User has_many :favorites, through: :likes, source: :status
• Status has_many :likes, dependent: :destroy
• Status has_many :likers, through: :likes, source: :user

이것을 이렇게 바꿔볼까 함.

• Like belongs_to :user, :status, :hashtag
• Like belongs_to :likeable, polymorphic: true
• User has_many :likes, dependent: :destroy
• User has_many :favorites, through: :likes, source: :likeable, source_type: "Status"
• User has_many :liked_hashtags, through: :likes, source: :likeable, source_type: "Hashtag"
• Status has_many :likes, dependent: :destroy
• Status has_many :likers, through: :likes, source: :user
• Hashtag has_many :likes, dependent: :destroy
• Hashtag has_many :likers, through: :likes, source: :user

(http://stackoverflow.com/questions/5886738/setting-up-a-polymorphic-has-many-through-relationship, http://stackoverflow.com/questions/6997141/rails-has-many-through-with-polymorphic-association-will-this-work 참조했음)

[woongy]

User has_many :likes, as: :likeable, dependent: :destroy 그리고 Like 모델에 있는 validation도 조금씩 수정해야 할 거야

[spilist]

아.. Status와 Hashtag도 as: :likeable 있어야겠군

[woongy]

아 내가 위에 잘못 썼구나; ㅇㅇ User에 있는게 아니라 Status랑 Hashtag에 있어야 함