Rails的ActionMailer參數是一個字符串

Question

我想使用ActionMailer發送電子郵件。

這是invoice_mailer.rb

class InvoiceMailer < ActionMailer::Base 
    default from: "ndeavor@ameipro.com" 
    def invoice_email(invoice) 
    @invoice = invoice 
    mail(:to => @invoice.workorder.contact.email, :subject => "nDeavor New Invoice") 
    end 
end 

這是控制器代碼：

def sendinvoice 
    @invoice = params[:invoice_id] 
    InvoiceMailer.invoice_email(@invoice).deliver 
    end 

這是視圖代碼：

<%= link_to 'Send Invoice', invoices_sendinvoice_path(:invoice_id => @invoice), :class => 'btn btn-primary' %> 

我得到的錯誤是從invoice_mailer的這一行開始：

mail(:to => @invoice.workorder.contact.email, :subject => "nDeavor New Invoice") 

這是錯誤：

undefined method `workorder' for "10":String 

感謝您的幫助！

Answer 1

在您的sendinvoice方法中，您有@invoice = params[:invoice_id]，它將10分配給@invoice，然後將其傳遞給InvoiceMailer.invoice_email。

你可能想要的是@invoice = Invoice.find(params[:invoice_id])。這將爲您提供ID爲10的發票對象。