粗略操作 "Delete" 在 rails 上 ruby 的第一个项目中不起作用

Question

我在我的第一个项目中实施了 crud 操作 "delete"，但系统将命令视为 "get"，没有错误。

这是控制器：

class MoviesController < ApplicationController

def index
    @movies = Movie.all      
end
#GET /movies/:id
def show
    id = params[:id]
    @movie = Movie.find(id)
    #render plain: 'show'+params[:id]
end
#POST /movies/
# skip_before_action :verify_autenticity_token:
def create
    @movie = Movie.create!(params[:movie].permit(:title, :rating, :description, :realease_date))
    flash[:notice] = "#{@movie.title} was successfully created."
    redirect_to movies_path
end

#new
def new
end

def edit
  id = params[:id]
    @movie = Movie.find(id)
end

def update
  id = params[:id]
  @movie = Movie.find(id)
  if @movie.update_attributes!(params[:movie].permit(:title,:rating,:realease_date))   
   flash[:notice] = "#{@movie.title} has been edited."
   redirect_to movies_path
  end
end

def destroy
  id = params[:id]
  @movie = Movie.find(id)
  @movie.destroy
  flash[:notice] = "#{@movie.title} has been deleted."
  redirect_to movies_path
end


end

这是可以调用 "Delete" 操作的视图：

%h2 Details about #{@movie.title}

%ul#details
    %li
        Rating:
        = @movie.rating
    %li
        Released on:
        = @movie.realease_date#.strftime("%B %d, %Y")

%h3 Description:

%p#description= @movie.description

%h4 Reviews:

- if @movie.reviews.empty?
    %p
        No reviews for this movie...

-else 
    - @movie.reviews.each do |r|
        - u = Moviegoer.find(r.moviegoer_id)
        <b>#{r.vote}</b> (<i>#{Moviegoer.find(r.moviegoer_id).name}</i>) #{r.message} <br />


= link_to 'Add review', new_movie_review_path(@movie)
<br/><br/>



#{link_to 'Edit info', edit_movie_path(@movie)} - #{link_to 'Delete', movie_path(@movie), :method => :delete} - #{link_to 'Back to movie list', movies_path}

问题可能出在最后一行，因为在服务器命令行中 "Delete" 不是调用。这是服务器响应（是我在浏览器上按 "Delete" 时执行的最后一个 GET）：

enter image description here

文件routes.rb:

Rails.application.routes.draw do

resources :movies do
    resources :reviews, only: [:new, :create, :destroy]
end
resources :moviegoers

root :to  => redirect('/movies')

end

命令结果"rake routes"：

Prefix Verb   URI Pattern                                                                              Controller#Action
        movie_reviews POST   /movies/:movie_id/reviews(.:format)                                                      reviews#create
     new_movie_review GET    /movies/:movie_id/reviews/new(.:format)                                                  reviews#new
         movie_review DELETE /movies/:movie_id/reviews/:id(.:format)                                                  reviews#destroy
               movies GET    /movies(.:format)                                                                        movies#index
                      POST   /movies(.:format)                                                                        movies#create
            new_movie GET    /movies/new(.:format)                                                                    movies#new
           edit_movie GET    /movies/:id/edit(.:format)                                                               movies#edit
                movie GET    /movies/:id(.:format)                                                                    movies#show
                      PATCH  /movies/:id(.:format)                                                                    movies#update
                      PUT    /movies/:id(.:format)                                                                    movies#update
                      DELETE /movies/:id(.:format)                                                                    movies#destroy
           moviegoers GET    /moviegoers(.:format)                                                                    moviegoers#index
                      POST   /moviegoers(.:format)                                                                    moviegoers#create
        new_moviegoer GET    /moviegoers/new(.:format)                                                                moviegoers#new
       edit_moviegoer GET    /moviegoers/:id/edit(.:format)                                                           moviegoers#edit
            moviegoer GET    /moviegoers/:id(.:format)                                                                moviegoers#show
                      PATCH  /moviegoers/:id(.:format)                                                                moviegoers#update
                      PUT    /moviegoers/:id(.:format)                                                                moviegoers#update
                      DELETE /moviegoers/:id(.:format)                                                                moviegoers#destroy
                 root GET    /                                                                                        redirect(301, /movies)
   rails_service_blob GET    /rails/active_storage/blobs/:signed_id             /*filename(.:format)                               active_storage/blobs#show
rails_blob_representation GET    /rails/active_storage/representations/:signed_blob_id/:variation_key/*filename(.:format)    active_storage/representations#show
      rails_disk_service GET    /rails/active_storage/disk/:encoded_key/*filename(.:format)                              active_storage/disk#show
 update_rails_disk_service PUT    /rails/active_storage/disk/:encoded_token(.:format)                                         active_storage/disk#update
      rails_direct_uploads POST   /rails/active_storage /direct_uploads(.:format)                                            active_storage/direct_uploads#create

Answer 1

如果没有看到相应的路线，很难确切地说出这是怎么回事。您可以尝试运行 rake routes 以查看可用的路线。

根据你的控制器中的评论，我猜你可能必须做一些事情，比如复数化路径 link_to 'Delete', movies_path(id: @movie.id), method: :delete，但这只会在你的资源路由配置错误时解决问题。

为了让 link 像您配置的那样工作，您的路由文件必须包含 resources :movies，或者一个专门配置的路由以映射到删除操作。

粗略操作 "Delete" 在 rails 上 ruby 的第一个项目中不起作用

Crud operation "Delete" don't works in my first project in ruby on rails

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