一种基本的酒店设置，其中Task 8
Task 8 | 15:47:32 | Preparing deployment: Preparing deployment (00:00:01)
Task 8 | 15:47:33 | Preparing package compilation: Finding packages to compile (00:00:00)
Task 8 | 15:47:33 | Compiling packages: nginx/d6ddf5c4782669341b260a27c53208d32a17b3a5 (00:00:10)
L Error: CPI error 'Bosh::Clouds::VMCreationFailed' with message 'VM failed to create: googleapi: Error 403: Quota 'CPUS' exceeded. Limit: 8.0 in region europe-west3., quotaExceeded' in 'create_vm' CPI method
Task 8 | 15:47:43 | Error: CPI error 'Bosh::Clouds::VMCreationFailed' with message 'VM failed to create: googleapi: Error 403: Quota 'CPUS' exceeded. Limit: 8.0 in region europe-west3., quotaExceeded' in 'create_vm' CPI method
是users的团队成员。它在Rails 5.2中使用cancancan和devise
hotel rails g scaffold User name
rails g scaffold Hotel name
rails g scaffold TeamMembership user:references hotel:references
rails g scaffold Reservation starts_on:date ends_on:date hotel:references
rails g scaffold CheckIn hotel:references reservation:references
通过hotels连接到users。反之亦然，从has_many :users, through: :team_memberships到users。
config / routes.rb
hotelsapp / controllers / check_ins_controller.rb
resources :hotels do
resources :reservations
resources :check_ins
end
app / models / ability.rb
class CheckInsController < ApplicationController
before_action :authenticate_user!
load_and_authorize_resource :hotel
load_and_authorize_resource :check_in, :through => :hotel
[...]
在某个地方，我有以下代码：
[...]
can [:read, :destroy], CheckIn, hotel_id: user.hotel_ids
can [:create], CheckIn
[...]
它应该只对<% if can? :create, CheckIn %>
<%= link_to 'Create Check-In', new_hotel_check_in_path(@hotel) %>
<% end %>
的团队成员可见。
@hotel的第一行工作正常，但第二行不起作用，因为任何人都可以创建新的ability.rb，但只有check_in可以创建新的team_memberships为他们的旅馆。
解决此问题的最佳方法是什么？显然，不应显示该链接，但是check_in URL应该不能供任何非团队成员使用。
答案 0 :(得分：0)
尝试一下：
can [:create], CheckIn if user.team_memberships.present?
OR
can [:create], CheckIn if user.hotels.present?
希望这会有所帮助。