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[英]Rails 4 destroy action, undefined_method message_path
[英]“Undefined_method, did you mean [pluralised] path?” error message on form_with Rails 5.1.6, using resources
我敢肯定,这是一个基本的问题,但是令人尴尬的是,我几天来一直在撞墙。 因此,我有一个名为“国家”的模型。
Routes.rb看起来像:
Rails.application.routes.draw do
resources :country
resources :references
get 'homepage/home'
end
country_controller.rb看起来像:
class CountryController < ApplicationController
before_action :set_country, only: [:show, :edit, :update, :destroy]
def new
@country = Country.new
end
def create
@country = Country.new(:name => params[:name], :metatitle => params[:metatitle], :metadescription => params[:metadescription], :ogtitle => params[:ogtitle], :ogdescription => params[:ogdescription], :abouthtml => params[:abouthtml])
if @country.save
redirect_to country_index_path, notice: 'Country was successfully created.'
else
redirect_to :new, notice: 'Something went wrong :('
end
end
def update
if @country.update
redirect_to country_index_path, notice: 'Country was successfully created.'
else
redirect_to :new, notice: 'Something went wrong :('
end
end
end
new.html是:
<%= render 'form', country: @country %>
_form.html.erb是
<div class="form">
<%= form_with(model: country, local: true) do |f| %>
<div class="form_element">
<%= f.label "Name" %>
<%= f.text_field :name %>
</div>
<div class="form_element">
<%= f.label "Meta Title" %>
<%= f.text_field :metatitle %>
</div>
<div class="form_element">
<%= f.label "Meta Description" %>
<%= f.text_field :metadescription %>
</div>
<div class="form_element">
<%= f.label "OG_Title" %>
<%= f.text_field :ogtitle %>
</div>
<div class="form_element">
<%= f.label "OG_Description" %>
<%= f.text_field :ogdescription %>
</div>
<div class="form_element">
<%= f.label "abouthtml" %>
<%= f.text_field "About (HTML)" %>
</div>
<%= f.submit %>
<% end %>
</div>
在/ country / new上,我收到一条错误消息,提示未定义“ countries_path”,我的意思是“ country_path”吗? 我绝对不知道我哪里出了错。
干杯! 麦克风
关于多元化。 routes
和controllers
都使用复数model
中单数。
# config/routes.rb
Rails.application.routes.draw do
resources :countries # <= HERE
resources :references
get 'homepage/home'
end
# apps/controllers/countries_controller.rb
class CountriesController < ApplicationController
# ...
end
另外,我知道这不是您的问题的一部分,但也许您会希望将create动作更新为:
def create
@country = Country.new(country_params)
if @country.save
redirect_to countries_path, notice: 'Country was successfully created.'
else
redirect_to :new, notice: 'Something went wrong :('
end
end
protected
def country_params
params.require(:country).permit(:name, :metatitle, :metadescription, :ogtitle, :ogdescription)
end
在routes.rb
您应该具有:
Rails.application.routes.draw do
resources :countries
end
加上您拥有的所有其他内容,更改是: resources :countries
应为复数形式
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