我有一个 ActiveMailer 类,在其中使用 render_to_string 方法发送带有附加 PDF 模板的电子邮件,代码如下:
def send_sales_order(email_service)
@email_service = email_service
@sales_order = SalesOrder.find_by_cid(email_service.order[:id])
mail(:subject => I18n.t("custom_mailer.sales_order.subject", company_name: "test"), :to => @email_service.recipients) do |format|
format.html
format.pdf do
attachments['purchase_order.pdf'] = WickedPdf.new.pdf_from_string(
render_to_string('sales_orders/show.pdf.erb', locals: {current_company: @sales_order.company})
)
end
end
end
在show.pdf.erb模板内,我调用了在ApplicationController中定义的辅助方法,例如current_company方法,代码如下: class ApplicationController < ActionController::Base
helper_method :current_company, :current_role
def current_company
return if current_user.nil?
if session[:current_company_id].blank?
session[:current_company_id] = current_user.companies.first.id.to_s
end
@current_company ||= Company.find(session[:current_company_id])
end
但是当我使用render_to_string方法渲染模板时,这些辅助方法不可用,有什么解决办法吗?谢谢。