Rails 4更新book_reviews問題

Question

我環顧四周，無法找到解決此特定問題的帖子。

在我的瀏覽器中，我進入索引（​​book_path）頁面查看已發佈的所有書籍。標題是和顯示頁面的鏈接，以及該書的詳細信息。

書籍/ index.html.erb

<% @books.each do |book| %><hr> 
    Title: <%= link_to "#{book.title}", book_path(book) %></a><br> 
    Description: <%= book.description %><br> 
    URL: <%= book.url %><br> 
    Role: <%= book.user.role %><br> 
    <%= link_to "Edit Book", edit_book_path(book) %> 
    <%= link_to 'Delete Book', book, method: :delete, 
    data: { confirm: 'Are you sure?' } %> <hr> 
<% end %> 

書籍/ show.html.erb - 因爲你可以看到我有一個從形式加入後的細節編輯的link_to。

<!-- show each book's detail --> 
    <div> 
    Title: <%= @book.title %><br> 
    Description: <%= @book.description %><br> 
    URL: <%= @book.url %><br> 
    <%= link_to "Edit Book", edit_book_path(@book) %> 
    </div><hr> 


    <!-- show each review --> 
    <div> 
    <% @book.reviews.each do |review| %> 
     <%= link_to "Edit", edit_book_review_path(@book, review) %> 
     Review: <%= review.description %><hr> 
    <% end %> 
    </div> 


    <%= render "reviews/reviewform" %> 

評論/ edit.html.erb

<%= form_for :review, :url => { :action => 'update', @review.id => :review_id }, method: :patch do |f| %> 
<p> 
    <%= f.label :description %><br> 
    <%= f.text_area :description %> 
</p> 

<p> 
    <%= f.submit "Update Review"%> 
</p> 
<% end %> 

這是URL，當我在我的索引頁的書點擊我得到（預期）

http://localhost:3000/books/6 

這是我點擊編輯評論（預計）後得到的網址

http://localhost:3000/books/6/reviews/13/edit 

雖然當我點擊 「更新評論」 它給出了一個錯誤（意外）

ActiveRecord::RecordNotFound in BooksController#show 

Couldn't find Book with 'id'=13 

def show 
    @book = Book.find(params[:id]) 
end 

其指我回到我的書控制器

reviews_controller.rb

def edit 
    @book = Book.find(params[:book_id]) 
    @review = Review.find(params[:id]) 
end 

def update 
    @review = Review.find(params[:id]) 

    if @review.update_attributes(review_params) 
    redirect_to book_path, :notice => "Successfully Updated" 
    else 
    render "edit" 
    end 
end 

可理解因爲我將它重定向到book_path，但不應該只是向我展示帶有id 6和更新的評論的書籍？

，所以我把它改成

def update 
    @review = Review.find(params[:id]) 

    if @review.update_attributes(review_params) 
    redirect_to book_review_path, :notice => "Successfully Updated" 
    else 
    render "edit" 
    end 
end 

，並得到

ActiveRecord::RecordNotFound in ReviewsController#show 
Couldn't find Review with 'id'=6 
def show 
    @review = Review.find(params[:book_id]) 
end 

Request 

Parameters: 

{"book_id"=>"6", 
"id"=>"13"} 

的routes.rb

   root GET /          books#index 
     book_reviews GET /books/:book_id/reviews(.:format)   reviews#index 
        POST /books/:book_id/reviews(.:format)   reviews#create 
    new_book_review GET /books/:book_id/reviews/new(.:format)  reviews#new 
    edit_book_review GET /books/:book_id/reviews/:id/edit(.:format) reviews#edit 
     book_review GET /books/:book_id/reviews/:id(.:format)  reviews#show 
        PATCH /books/:book_id/reviews/:id(.:format)  reviews#update 
        PUT /books/:book_id/reviews/:id(.:format)  reviews#update 
        DELETE /books/:book_id/reviews/:id(.:format)  reviews#destroy 
       books GET /books(.:format)       books#index 
        POST /books(.:format)       books#create 
      new_book GET /books/new(.:format)      books#new 
      edit_book GET /books/:id/edit(.:format)     books#edit 
       book GET /books/:id(.:format)      books#show 
        PATCH /books/:id(.:format)      books#update 
        PUT /books/:id(.:format)      books#update 
        DELETE /books/:id(.:format)      books#destroy 

我曾嘗試其他途徑，但沒有運氣。 讓我知道如果你需要任何東西

Answer 1

在你 reviews_controller.rb

def update

行動，你有

redirect_to book_path, :notice => "Successfully Updated" 

應該

redirect_to book_path(params[:book_id]), :notice => "Successfully Updated" 

我猜測。應該做同樣的改變，如果你想重定向到book_review_path，你應該指定id和book_id