Question

如何设置路径？

运行rails应用程序时出现以下错误：

No route matches {:action=>"show", :controller=>"practice"}, missing required keys: [:id]

这是我的index.erb.html文件

<h3>Please fill the following details</h3>
<hr>
<%= form_with scope: :welcome , local: true do |f| -%>
<b><i>Name</b></i>:&nbsp &nbsp &nbsp &nbsp &nbsp &nbsp&nbsp<%= f.text_field :name %> </br></br>
<b><i>Address</b></i>:&nbsp &nbsp &nbsp &nbsp&nbsp <%= f.text_area :address %> </br></br>
<b><i>City</b></i>:&nbsp &nbsp <%= f.text_field :city %> </br></br>
<%= f.submit "Submit", class: "btn-submit" %>

<% end %>

这是我的routes.rb文件。

Rails.application.routes.draw do
  resources :practice

  # For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html
end

这是我的Controller文件：

class PracticeController < ApplicationController
    def new
        @welcome= Welcome.new;
    end

    def index
         @welcome= Welcome.new;
    end
    def show
         @welcome = Welcome.find(params[:id])
    end
    def create
        @welcome=Welcome.new(params.require(:welcome).permit(:name,:address,:city)) ;
            if @welcome.save
            flash[:notice]="Successfully Registered"
            redirect_to practice_path
            else
            flash[:notice]="Error while registering"
            render:new
        end
    end
end

这是我的show.html.erb文件：

＆＃13;

<p>
  <strong>Name:</strong>
  <%= @welcome.name %>
</p>
 
<p>
  <strong>Address:</strong>
  <%= @Welcome.address %>
</p>

<p>
	<strong>City:</strong>
	<%= @welcome.city%>
</p>

＆＃13;

我没有为show.html.erb文件设置任何link_to帮助器。

Answer 1

声明路线时使用复数形式：

# bad
resources :practice

# good
resources :practices

要重定向到索引路径，您需要重定向到practices_path：

def create
  @welcome = Welcome.new(practice_params)
  if @welcome.save
    redirect_to practices_path, notice: "Successfully Registered"
  else
    render :new, notice: "Error while registering"
  end
end

private

def practice_params
  params.require(:welcome).permit(:name,:address,:city)
end

如果您想要重定向到新创建的记录，只需将其传递给redirect_to：

redirect_to @welcome, notice: "Successfully Registered"

您可以看到rails routes的完整路线列表（在Rails 4中运行bundle exec rake routes代替

）

我的应用程序中出现与路径

1 个答案: