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