我无法终生从index.html.erb页面删除此rails保留记录。我已经尝试过在此论坛上阅读的许多内容。在销毁行动或其他地方我缺少什么？
当我单击删除按钮时，得到以下响应： 在ReservationsController＃show中的ActiveRecord :: RecordNotFound 找不到'id'= 32的保留（无论我删除哪条记录，我都会得到相同的响应）
红宝石2.6.3 轨道6.0.2
从日志中：
ActionView::Template::Error (undefined method `reservation' for #<#<Class:0x00007fa0fcf97028>:0x00007fa0fd25ab98>
22:52:00 web.1 | Did you mean? reservation_url):
22:52:00 web.1 | 24: <td> </td>
22:52:00 web.1 | 25: <td><%= link_to 'Show', reservation %></td>
22:52:00 web.1 | 26: <td><%= link_to 'Edit',
edit_reservation_path(reservation) %></td>
22:52:00 web.1 | 27: <td><%= link_to 'Delete', reservation(:user), method: :delete, data: { confirm: 'Are you sure?' } %></td>
22:52:00 web.1 | 28: </tr>
22:52:00 web.1 | 29: <% end %>
22:52:00 web.1 | 30: </tbody>
22:52:00 web.1 |
22:52:00 web.1 | app/views/reservations/index.html.erb:27
22:52:00 web.1 | app/views/reservations/index.html.erb:16
22:52:11 web.1 | Started GET "/reservations" for ::1 at 2020-01-20 22:52:11 -0800
22:52:11 web.1 | Processing by ReservationsController#index as HTML
22:52:11 web.1 | User Load (0.4ms) SELECT "users".* FROM "users" WHERE "users"."id" = $1 ORDER BY "users"."id" ASC LIMIT $2 [["id", 1], ["LIMIT", 1]]
22:52:12 web.1 | Rendering reservations/index.html.erb within layouts/application
22:52:12 web.1 | Reservation Load (0.6ms) SELECT "reservations".* FROM "reservations" ORDER BY "reservations"."name" ASC
22:52:12 web.1 | ↳ app/views/reservations/index.html.erb:16
22:52:12 web.1 | User Load (0.4ms) SELECT "users".* FROM "users" WHERE "users"."id" = $1 LIMIT $2 [["id", 1], ["LIMIT", 1]]
22:52:12 web.1 | ↳ app/views/reservations/index.html.erb:22
22:52:12 web.1 | CACHE User Load (0.0ms) SELECT "users".* FROM "users" WHERE "users"."id" = $1 LIMIT $2 [["id", 1], ["LIMIT", 1]]
22:52:12 web.1 | ↳ app/views/reservations/index.html.erb:22
22:52:12 web.1 | CACHE User Load (0.0ms) SELECT "users".* FROM "users" WHERE "users"."id" = $1 LIMIT $2 [["id", 1], ["LIMIT", 1]]
22:52:12 web.1 | ↳ app/views/reservations/index.html.erb:22
22:52:12 web.1 | Rendered reservations/index.html.erb within layouts/application (Duration: 11.4ms | Allocations: 3355)
22:52:12 web.1 | Rendered shared/_head.html.erb (Duration: 40.9ms | Allocations: 9570)
22:52:12 web.1 | Announcement Load (0.4ms) SELECT "announcements".* FROM "announcements" ORDER BY "announcements"."published_at" DESC LIMIT $1 [["LIMIT", 1]]
22:52:12 web.1 | ↳ app/helpers/announcements_helper.rb:3:in `unread_announcements'
22:52:12 web.1 | Rendered shared/_navbar.html.erb (Duration: 5.3ms | Allocations: 1883)
22:52:12 web.1 | Rendered shared/_notices.html.erb (Duration: 0.9ms | Allocations: 160)
22:52:12 web.1 | Rendered shared/_footer.html.erb (Duration: 1.4ms | Allocations: 195)
22:52:12 web.1 | Completed 200 OK in 73ms (Views: 66.5ms | ActiveRecord: 1.9ms | Allocations: 19335)
22:52:12 web.1 |
22:52:12 web.1 |
22:52:44 web.1 | Started DELETE "/reservations/32" for ::1 at 2020-01-20 22:52:44 -0800
22:52:44 web.1 | Processing by ReservationsController#destroy as HTML
22:52:44 web.1 | Parameters: {"authenticity_token"=>"wT/O32OAbcNAGumgXNuM7fz2pEpZuUSaXd4FTQFYp1mn9GKFZxu2tDw5AtOUpC4Izx0eJplYCZJSOmt024tqog==", "id"=>"32"}
22:52:44 web.1 | Reservation Load (0.5ms) SELECT "reservations".* FROM "reservations" WHERE "reservations"."id" = $1 LIMIT $2 [["id", 32], ["LIMIT", 1]]
22:52:44 web.1 | ↳ app/controllers/reservations_controller.rb:52:in `set_reservation'
22:52:44 web.1 | User Load (5.7ms) SELECT "users".* FROM "users" WHERE "users"."id" = $1 ORDER BY "users"."id" ASC LIMIT $2 [["id", 1], ["LIMIT", 1]]
22:52:44 web.1 | (0.3ms) BEGIN
22:52:44 web.1 | ↳ app/controllers/reservations_controller.rb:43:in `destroy'
22:52:44 web.1 | Reservation Destroy (13.7ms) DELETE FROM "reservations" WHERE "reservations"."id" = $1 [["id", 32]]
22:52:44 web.1 | ↳ app/controllers/reservations_controller.rb:43:in `destroy'
22:52:44 web.1 | (1.5ms) COMMIT
22:52:44 web.1 | ↳ app/controllers/reservations_controller.rb:43:in `destroy'
22:52:44 web.1 | Redirected to http://localhost:5000/reservations/32
22:52:44 web.1 | Completed 302 Found in 36ms (ActiveRecord: 21.7ms | Allocations: 4161)
22:52:44 web.1 |
22:52:44 web.1 |
22:52:44 web.1 | Started GET "/reservations/32" for ::1 at 2020-01-20 22:52:44 -0800
22:52:44 web.1 | Processing by ReservationsController#show as HTML
22:52:44 web.1 | Parameters: {"id"=>"32"}
22:52:44 web.1 | Reservation Load (0.3ms) SELECT "reservations".* FROM "reservations" WHERE "reservations"."id" = $1 LIMIT $2 [["id", 32], ["LIMIT", 1]]
22:52:44 web.1 | ↳ app/controllers/reservations_controller.rb:52:in `set_reservation'
22:52:44 web.1 | Completed 404 Not Found in 3ms (ActiveRecord: 0.3ms | Allocations: 1259)
22:52:44 web.1 |
22:52:44 web.1 |
22:52:44 web.1 |
22:52:44 web.1 | ActiveRecord::RecordNotFound (Couldn't find Reservation with 'id'=32):
22:52:44 web.1 |
22:52:44 web.1 | app/controllers/reservations_controller.rb:52:in `set_reservation'
reservation_controller.rb：
...
class ReservationsController < ApplicationController
before_action :set_reservation, only: [:show, :edit, :update, :destroy]
before_action :authenticate_user!
def index
@reservations = Reservation.all
end
def show
end
def new
@reservation = Reservation.new
end
def edit
end
def create
@reservation = Reservation.new(reservation_params)
@reservation.user_id = current_user.id if current_user
respond_to do |format|
if @reservation.save
format.html { redirect_to @reservation, notice: 'Your audition time was successfully created, write this date and time down so you remember!' }
else
format.html { render :new }
end
end
end
def update
respond_to do |format|
if @reservation.update(reservation_params)
format.html { redirect_to @reservation, notice: 'Selection was successfully updated.' }
else
format.html { render :edit }
end
end
end
def destroy
@reservation.destroy
respond_to do |format|
format.html { redirect_to reservation_url, notice: 'Selection reservation was successfully destroyed.' }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_reservation
@reservation = Reservation.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def reservation_params
params.require(:reservation).permit(:name)
end
def authenticate_admin!
authenticate_user!
redirect_to action: 'new', status: :forbidden unless current_user.admin?
end
end
...
reservation.rb模型
class Reservation < ApplicationRecord
belongs_to :user
end
user.rb模型：
class User < ApplicationRecord
# Include default devise modules. Others available are:
# :confirmable, :lockable, :timeoutable and :omniauthable
devise :masqueradable, :database_authenticatable, :registerable, :recoverable, :rememberable, :validatable, :omniauthable
has_person_name
validates :first_name, length: { minimum: 2 }
validates :last_name, length: { minimum: 2 }
has_many :notifications, foreign_key: :recipient_id
has_many :services
has_many :reservations
end
routes.rb文件：
require 'sidekiq/web'
Rails.application.routes.draw do
resources :products do
resource :purchase
end
resources :auditions
resources :reservations
namespace :admin do
resources :reservations
resources :products
resources :auditions
resources :users
root to: "users#index"
end
get '/reservation', to: 'reservations#new'
get '/privacy', to: 'home#privacy'
get '/terms', to: 'home#terms'
authenticate :user, lambda { |u| u.admin? } do
mount Sidekiq::Web => '/sidekiq'
end
resources :notifications, only: [:index]
resources :announcements, only: [:index]
devise_for :users, controllers: { omniauth_callbacks: "users/omniauth_callbacks" }
root to: 'products#index'
# For details on the DSL available within this file, see https://guides.rubyonrails.org/routing.html
end
reservations / index.html.erb文件：
<h3>Reservations</h3>
<table>
<thead>
<tr>
<th>Audition Time</th>
<th> </th>
<th> </th>
<th>Person</th>
<th colspan="3"></th>
</tr>
</thead>
<tbody>
<% @reservations.order(:name).each do |reservation| %>
<tr>
<td><%= reservation.name %></td>
<td> </td>
<td> </td>
<td><%= reservation.try(:user).try(:first_name) %></td>
<td><%= reservation.try(:user).try(:last_name) %></td>
<td> </td>
<td><%= link_to 'Show', reservation %></td>
<td><%= link_to 'Edit', edit_reservation_path(reservation) %></td>
<td><%= link_to 'Delete', reservation, method: :delete, data: { confirm: 'Are you sure?' } %></td>
</tr>
<% end %>
</tbody>
</table>
<br>
<%= link_to 'New reservation', new_reservation_path %>
答案 0 :(得分：2)
根据您的日志文件保留已成功删除，但是您尝试在删除后查看它。在您的destroy方法更改中
redirect_to reservation_url
到
redirect_to reservations_url
答案 1 :(得分：0)
从日志中，您可以看到预订实际上已被删除。问题是您将被重定向到已删除预订的显示视图-该视图不再存在。因此，您将收到404错误。
在destroy方法中，尝试重定向到reservations_url（索引路径）而不是reservation_url。
答案 2 :(得分：0)
在destroy方法上，将URL更改为提及的“ @VitautsStočka”或自定义root_url。
日志：
请求删除id=32，然后重定向以找到id=32的预订
| DELETED SUCCESSFULLY!
22:52:44 web.1 | ↳ app/controllers/reservations_controller.rb:43:in `destroy'
22:52:44 web.1 | Redirected to http://localhost:5000/reservations/32
...
22:52:44 web.1 | ActiveRecord::RecordNotFound (Couldn't find Reservation with 'id'=32):