Rails 3 ActionMailer模型屬性

Question

我想在用戶填充空白後將信息形成郵件。但我無法將用戶的模型屬性以HTML格式發送到我的郵件地址。

class DemandMailer < ActionMailer::Base 
    default from: "mail@mail.com" 

    def demand_call(demand) 
     mail(:to => "mymail@mail.com" , :subject => "user registered") 
    end 
end 

和demand_call.html.erb就是這樣

the user name is <%= @demand.name %> 

但錯誤是

ActionView::Template::Error (undefined method `name' for nil:NilClass): 

我該怎麼解決呢？

Answer 1

你應該定義實例變量裏面方法

class DemandMailer < ActionMailer::Base 
    default from: "mail@mail.com" 

    def demand_call(demand) 
     @demand = demand 
     mail(:to => "mymail@mail.com" , :subject => "user registered") 
    end 
    end 

:)你的建議是工作不是可以用它裏面查看

the user name is <%= @demand.name %>