Ruby on Rails：取消關注用戶

Question

我不確定爲什麼這不允許當前用戶取消關注用戶。當「取消關注」按鈕被點擊，頁面被路由到/友誼friend_id = 2，此錯誤消息：沒有路由匹配[刪除]「/友誼」出現

_user.html.erb

<%= link_to "Unfollow", friendships_path(friend_id: user.id), method: :delete, data: { confirm: "Are you sure?" }, class:"btn btn-md btn-danger" %> 

友誼控制器

def destroy 
    @friendship = Friendship.find_by(id: params[:id]) 
    @friendship.destroy 
    flash[:notice] = "Removed friendship." 
    redirect_back fallback_location: root_path 
end 

的routes.rb

resources :friendships, only: [:create, :update, :destroy] 

schema.rb

create_table "friendships", force: :cascade do |t| 
    t.integer "user_id" 
    t.integer "friend_id" 
    t.boolean "accepted", default: false 
    t.datetime "created_at", null: false 
    t.datetime "updated_at", null: false 
    end 

Answer 1

你可以嘗試使用單數friendship_path沒有複數形式（friendships_path）

<%= link_to "Unfollow", friendship_path(current_user.friendships.find_by_friend_id(u‌​ser.id)), :method => :delete, data: { confirm: "Are you sure?" }, class:"btn btn-md btn-danger" %>