Question

一个基本问题，我确定，但是我已经在这个特殊的砖墙上撞了好几天，令人尴尬。所以，我有一个名为＆＃39; Country＆＃39;的模型。

Routes.rb看起来像：

decalre
    sqlstr VARCHAR2(30000);
    cur SYS_REFCURSOR;
begin

    SELECT SELECT LISTAGG(''''||LAYER||''' AS '||layer, ',') WITHIN GROUP (ORDER BY LAYER)
    INTO sqlstr 
    FROM (SELECT LAYER FROM your_table GROUP BY LAYER);

    sqlstr := 'SELECT * FROM your_table PIVOT (MIN(VALUESS) FOR layers IN ('||sqlstr||'))';
    DBMS_OUTPUT.PUT_LINE(sqlstr);

    OPEN cur FOR sqlstr;
    ...

end;

country_controller.rb看起来像：

Rails.application.routes.draw do    
  resources :country    
  resources :references
  get 'homepage/home'
end

new.html是：

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

和_form.html.erb是

<%= render 'form', country: @country %>

在/ country / new上，我收到错误消息“country_path＆＃39;没有定义，我的意思是“country_path＆＃39 ;?而且我绝对迷失在这里我出错的地方。

干杯！麦克

Answer 1

关于多元化。 routes和controllers是复数，model是单数。

# 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，我知道这不是你问题的一部分，但也许你会想要将你的创建行动更新为：

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

Answer 2

在routes.rb上你应该：

Rails.application.routes.draw do    
 resources :countries    
end

除了你拥有的任何其他内容，更改是：resources :countries应为复数

＆＃34; Undefined_method，你的意思是[复数]路径？＆＃34; form_with Rails 5.1.6上的错误消息，使用资源

2 个答案: