Question

如何在rails中创建ICS并将其作为附件发送到邮件中？

Answer 1

这可以使用ri_cal gem完成：要创建要创建事件的事件ics文件：

event = RiCal.Event do
      description "MA-6 First US Manned Spaceflight"
      dtstart     DateTime.parse("2/20/1962 14:47:39")
      dtend       DateTime.parse("2/20/1962 19:43:02")
      location    "Cape Canaveral"
      add_attendee "john.glenn@nasa.gov"
      alarm do
        description "Segment 51"
      end
    end

然后在事件上使用.export(stream)（这会将事件插入到仅包含此事件的包装器日历中，因此您不必自己包装它）。可以将流设置为可以按照Andy建议的方式附加的文件，也可以在没有stream参数的情况下调用此方法，该参数将返回可以按原样放入附件的字符串。这看起来像这样：

class UserMailer < ActionMailer::Base
  def send_event_email(user, event)
    attachments['event.ics'] = event.export()
    mail(:to => user.email, :subject => "Calendar event!")
  end
end

Answer 2

使用ActionMailer（API documentation），只需生成文件并将其添加到attachments：

class ApplicationMailer < ActionMailer::Base
  def send_ics(recipient)
    attachments['event.ics'] = File.read('path/to/event.ics')
    mail(:to => recipient, :subject => "Calendar event!")
  end
end

您可以在不将文件实际保存到文件系统的情况下执行此操作，但我会将此练习留给您。

Answer 3

icalendar

将此gem添加到您的Gemfile

gem 'mail'
gem 'icalendar'

您必须在config/enviroment.rb内配置邮件gem，例如RoR 4.2

# Load the Rails application.
require File.expand_path('../application', __FILE__)

# Initialize the Rails application.
Rails.application.initialize!

# Initialize sendgrid
ActionMailer::Base.smtp_settings = {
  :user_name => 'username',
  :password => 'password',
  :domain => 'something.com',
  :address => 'smtp.something.com',
  :port => 587,
  :authentication => :plain,
  :enable_starttls_auto => true
}

用户模型

has_may :calendar_events

字段

全名
邮件

CalendarEvent模型

belongs_to :user

字段

标题
描述
START_TIME
END_TIME
USER_ID

应用/邮寄者/ mail_notifier.rb

class MailNotifier < ActionMailer::Base default from: 'test@something.com' def send_calendar_event(calendar_event, organizer) @cal = Icalendar::Calendar.new @cal.event do |e| e.dtstart = calendar_event.start_time e.dtend = calendar_event.end_time e.summary = calendar_event.title e.organizer = "mailto:#{organizer.mail}" e.organizer = Icalendar::Values::CalAddress.new("mailto:#{organizer.mail}", cn: organizer.fullname) e.description = calendar_event.description end mail.attachments['calendar_event.ics'] = { mime_type: 'text/calendar', content: @cal.to_ical } mail(to: calendar_event.user.mail, subject: "[SUB] #{calendar_event.description} from #{l(calendar_event.start_time, format: :default)}") end end

现在，您可以使用以下代码从控制器调用MailNotifier

MailNotifier.send_calendar_event(@calendar_event, organizer_user).deliver

如何在rails中创建ICS并将其作为附件发送到邮件中？

3 个答案: