使用嵌套资源调用"new"方法的路由错误

Question

我有两个嵌套资源:

class Customer < ActiveRecord::Base
  has_many :locations, :dependent => :destroy
  accepts_nested_attributes_for :locations
end
class Location < ActiveRecord::Base
  belongs_to :customer
end

在路线。我有

resources :customers do
  resources :locations
end    

创建新位置的代码为

<%= link_to image_tag("add.png"), new_customer_location_path(@customer), :class => "button" %>

当我尝试创建一个新位置时，我得到以下错误

路由错误

没有匹配的路由{:action =>"显示":控制器=>"地点":customer_id => #: id => #}

为什么调用:action=>"show"而不是"new"?

rake路由输出

customer_locations     GET    /customers/:customer_id/locations(.:format)                  {:action=>"index", :controller=>"locations"}
                       POST   /customers/:customer_id/locations(.:format)                  {:action=>"create", :controller=>"locations"}
new_customer_location  GET    /customers/:customer_id/locations/new(.:format)              {:action=>"new", :controller=>"locations"}
edit_customer_location GET    /customers/:customer_id/locations/:id/edit(.:format)         {:action=>"edit", :controller=>"locations"}
customer_location      GET    /customers/:customer_id/locations/:id(.:format)              {:action=>"show", :controller=>"locations"}
                       PUT    /customers/:customer_id/locations/:id(.:format)              {:action=>"update", :controller=>"locations"}
                       DELETE /customers/:customer_id/locations/:id(.:format)              {:action=>"destroy", :controller=>"locations"}

locations_controller中新动作的控制器代码。rb是

before_filter :find_customer
def new
  @location = @customer.locations.new
  respond_to do |format|
    format.html # new.html.erb
    format.json { render json: @location }
  end
end

我不明白这个错误，我有另外两个嵌套的资源，工作正常，检查了所有的代码，它似乎完全相同…有没有可能"位置"是一个保留词，或者有什么遗漏/错误?

Answer 1

好的，找到问题了。

在app/views/位置/_form.html.erb它被app/views/locations/new.html.erb

调用

有一个路径错误的链接帮助:

    <%= link_to "Cancel", customer_location_path(@customer,@location) %>

我已经把它改成

    <%= link_to "Cancel", customer_path(@customer) %>

现在一切正常

Answer 2

试着在image_tag上加一个右括号。

<%= link_to image_tag("add.png"), new_customer_location_path(@customer), :class => "button" %>