无法创建基于模型的表单 rails 4

Question

我有基于模型的表单：

<h2>Add New Credit Card</h2>
<%= form_for @credit_card do |f| %>
     some fields
<% end %>

路线：

resources :credit_card

credit_card_index GET    /credit_card(.:format)                       credit_card#index
                     POST   /credit_card(.:format)                       credit_card#create
     new_credit_card GET    /credit_card/new(.:format)                   credit_card#new
    edit_credit_card GET    /credit_card/:id/edit(.:format)              credit_card#edit
         credit_card GET    /credit_card/:id(.:format)                   credit_card#show
                     PATCH  /credit_card/:id(.:format)                   credit_card#update
                     PUT    /credit_card/:id(.:format)                   credit_card#update
                     DELETE /credit_card/:id(.:format)                   credit_card#destroy

控制器：

def new
    @credit_card = CreditCard.new
end

当我尝试按表单呈现时，它说：

undefined method `credit_cards_path' for #<#<Class:0x00000004c37680>:0x00000004c34570>
Did you mean?  credit_card_path
               credit_card_index_path
               credit_card_url

它是基于模型的形式，目前我没有模型。我只想渲染和提交将去创建方法

Answer 1

在您的路线中，resources 定义使用复数形式。

resources :credit_cards

这将生成您的路线

credit_cards GET    /credit_cards/:id(.:format)                   credit_card#show

Answer 2

您正在使用 Singular Resources:

resources :credit_card

你必须使用的地方 Plural Resources:

resources :credit_cards

Answer 3

使用resources :credit_cards代替resources :credit_card

无法创建基于模型的表单 rails 4

Unable to create model based forms rails 4

ruby-on-rails

form-helpers