Ruby on rails 进入页面创建新记录时出现NoMethodError
在Rails中,我一直在努力解决这类问题。我正在尝试为给定的城市创建一个统计记录。我想我不需要粘贴我的模型了?下面是错误、URL、视图和控制器代码 这是我的错误:Ruby on rails 进入页面创建新记录时出现NoMethodError,ruby-on-rails,ruby-on-rails-3,routes,Ruby On Rails,Ruby On Rails 3,Routes,在Rails中,我一直在努力解决这类问题。我正在尝试为给定的城市创建一个统计记录。我想我不需要粘贴我的模型了?下面是错误、URL、视图和控制器代码 这是我的错误: NoMethodError in Statistics#new Showing new.html.haml where line #2 raised: undefined method `statistics_path' for #<#<Class:0x007faf5e172928>:0x007faf5e717ef0
NoMethodError in Statistics#new
Showing new.html.haml where line #2 raised:
undefined method `statistics_path' for #<#<Class:0x007faf5e172928>:0x007faf5e717ef0>
路线:
city_statistics GET /cities/:city_id/statistics(.:format) statistics#index
POST /cities/:city_id/statistics(.:format) statistics#create
new_city_statistic GET /cities/:city_id/statistics/new(.:format) statistics#new
edit_city_statistic GET /cities/:city_id/statistics/:id/edit(.:format) statistics#edit
city_statistic GET /cities/:city_id/statistics/:id(.:format) statistics#show
PUT /cities/:city_id/statistics/:id(.:format) statistics#update
DELETE /cities/:city_id/statistics/:id(.:format) statistics#destroy
cities GET /cities(.:format) cities#index
POST /cities(.:format) cities#create
new_city GET /cities/new(.:format) cities#new
edit_city GET /cities/:id/edit(.:format) cities#edit
city GET /cities/:id(.:format) cities#show
PUT /cities/:id(.:format) cities#update
DELETE /cities/:id(.:format) cities#destroy
routes.rb:
resources :cities do
resources :statistics
end
routes.rb:
控制器:
def new
@statistic = Statistic.new
respond_to do |format|
format.html # new.html.haml
format.json { render :json => @statistic }
end
end
视图:
EDITadded routes.rb您的路径文件显示的是
城市
,而不是城市
。也许你被ActiveResource多元化问题困扰了?两件事
routes.rb
)=form_for([@city,@statistic])do | f |
不介意否决票,但请解释它是如何不正确的。在我的回答中解释。投票被否决只是为了秩序,所以我的答案被问题的作者看到了。请添加你的routes.rb文件,根据你应该使用的路线,[@city,@statistic]@Michael Szyndel:谢谢。更改了这两个内容,但现在我得到了:未定义的方法
模型名称'NilClass:Class`您必须先在控制器中设置@city!哦,谢谢:)!!你的建议帮助我解决了这个问题。非常感谢。
def new
@statistic = Statistic.new
respond_to do |format|
format.html # new.html.haml
format.json { render :json => @statistic }
end
end
%legend New Stat
= form_for(@statistic) do |f| ###### ERROR HERE #######
= f.label :city_id
= f.text_field :city_id
.actions
= f.submit "Add", :id => "add-statistic", :class => "btn btn-primary"