路由错误 - 没有路由匹配[POST]

时间:2016-09-01 09:22:51

标签: ruby-on-rails ruby-on-rails-5

在这个问题上已经阅读了很多问题/答案,但似乎找不到我的修复。

问题在于:我正在跟随Rails的入门创建一个简单的注释注册。我的表单工作 - 可以添加新的&更新注释。然而,当我添加链接到索引时,我收到路由错误:

  • 这:<%= button_to "Details", annotation_path(annotation), :class => "btn btn-primary btn-xs"%>导致:没有路线匹配[POST]“/ annotations / 5”
  • 这:<%= button_to "Add Annotation", new_annotation_path, :class => "btn btn-primary btn-xs"%>没有路线匹配[POST]“/ annotations / new”

感谢您的帮助

Routes.db:

Rails.application.routes.draw do
  root 'dashboard#index'
  devise_for :users
  resources :users, :annotations

控制器:

class AnnotationsController < ApplicationController

    def index
        @annotations = Annotation.all
    end

    def show
        @annotation = Annotation.find(params[:id])
    end

    def new
        @annotation = Annotation.new
    end

    def edit
        @annotation = Annotation.find(params[:id])
    end

    def create
        @annotation = Annotation.new(annotation_params)

        @annotation.save
        redirect_to @annotation
    end

    def update
        @annotation = Annotation.find(params[:id])

        if @annotation.update(annotation_params)
            redirect_to @annotation
        else
            render 'edit'
        end
    end

    def destroy
        @annotation = Annotation.find(params[:id])
        @annotation.destroy

        redirect_to annotations_path
    end

    private
        def annotation_params
            params.require(:annotation).permit(:name, :description)
        end
end

表格(=部分)

<%= simple_form_for @annotation, url: annotations_path, html: { class: 'form-horizontal' },
    wrapper: :horizontal_form,
    wrapper_mappings: {
        check_boxes: :horizontal_radio_and_checkboxes,
        radio_buttons: :horizontal_radio_and_checkboxes,
        file: :horizontal_file_input,
        boolean: :horizontal_boolean
    } do |f| %>

    <%= f.error_notification %>

    <%= f.input :name, placeholder: 'Enter name' %>

    <%= f.input :description, placeholder: 'Description' %>

    <%= f.input :file, as: :file %>

    <%= f.input :active, as: :boolean %>

    <%= f.input :choice, as: :check_boxes,
    collection: [
      'Option one ...',
      'Option two ...'] %>

    <%= f.input :documenttype, as: :radio_buttons,
    collection: ['Type1', 'Type2'] %>

  <%= f.button :submit %>

<% end %>

表格注意事项:无济于事,我尝试使用<%= simple_form_for :annotation, url: annotations_path,

2 个答案:

答案 0 :(得分:0)

在此处阅读文档button_to

默认情况下,该方法:post使用:method param

进行更改
<%= button_to "Details", annotation_path(annotation), :class => "btn btn-primary btn-xs", method: :get%>

<%= button_to "Add Annotation", new_annotation_path, :class => "btn btn-primary btn-xs", method: :get%>

答案 1 :(得分:0)

问题是因为button_to帮助器实际上在代码级别生成一个表单,因此POST表示表单,但是新资源的路由必须是GET。

button_to标签确实不应该用于GET请求,所以我会使用带有CSS类的link_to(你已经有了必要的类),但如果你愿意,可以使用下面的代码来实现:

<%= button_to "Details", annotation_path(annotation), class: "btn btn-primary btn-xs", method: :get%>

然而,更好的方法是:

<%= link_to "Details", annotation_path(annotation), class: "btn btn-primary btn-xs" %>