Rails在電子郵件中嵌入圖像

在Rails應用程序中，我試圖在電子郵件中嵌入（嵌入）圖像（徽標）。Rails在電子郵件中嵌入圖像

這是invoice.mailer.rb：

class InvoiceMailer < ActionMailer::Base 
    def invoice_email(invoice) 
    @invoice = invoice 
    @recipients = @invoice.workorder.client.contacts.where(:receiveinvoices => true) 
    tomail = @recipients.collect(&:email).join(",") 
    frommail = @invoice.tenant.from_email 
    copymail = @invoice.tenant.copy_email 
    attachments.inline['AME_Logo.gif'] = File.read(Rails.root.join('app/assets/images/AME_Logo.gif')) 

    mail(
     :to => tomail, 
     :bcc => copymail, 
     :from => frommail, 
     :subject => "New Invoice from " + @invoice.tenant.name 

    ) 
    end 
end

這是_invoice_email.html.erb：

<!DOCTYPE html> 
<html> 
<head> 
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 
    <style type="text/css" media="screen"> 
    </style> 
</head> 
<body style="margin-left: auto; margin-right: auto; width: 700px"> 
<div class="invoice"> 
<div class="inv_header" style="margin-left:10px; margin-right: auto; width: 650px"> 
    <h4>Invoice</h4> 
    <%= image_tag attachments['AME_Logo.gif'].url -%> 
</div>

我從IMAGE_TAG代碼行收到此錯誤：

undefined local variable or method `attachments' for #<#<Class:0x007f8a49ce7b08>:0x007f8a4e352110>

感謝您的幫助！

來源

2014-12-01 Reddirt

爲什麼不直接在image_tag助手中硬編碼路徑？

<%= image_tag('http://path-to-your-site/assets/AME_Logo.gif') %>

如果它必須是一個附件，你必須做出一個實例變量：

@attachments.inline['AME_Logo.gif'] = File.read(Rails.root.join('app/assets/images/AME_Logo.gif'))

，並在你的郵件：

<%= image_tag @attachments['AME_Logo.gif'].url -%>

來源

2014-12-01 21:08:07

我已經試過'<％= IMAGE_TAG（「/images/AME_Logo.gif」，：class =>'pull-right padding-right'）％>' - 圖像是附件，但不是內聯。 – Reddirt 2014-12-01 21:11:01

Rails在電子郵件中嵌入圖像

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