ios - Ruby on Rails，Grocer 无法向多个收件人发送推送通知

Question

  def push_notification(users)

    unless self.pushed_to_mobile? || users.empty?

      # make sure all required users receive notifications on
      # all registered devices.
      @device_tokens = users.map { |u| u.device_tokens }.flatten.uniq

      @device_tokens.each do |token|

        notification = Grocer::Notification.new(
          device_token:   token.device_token,
           alert:        { "body" => "#{self.context_type}: #{self.name}", "action-loc-key" => "View" },
           badge:        1,
           sound:        'chord.aiff'
           custom:       { "content" => [ self.name, self.context_type, self.context_name, self.context_id, self.content_id ] },
        )

        feedback.each do |attempt|
        #   # TODO: if a device fails 3 times it should be removed from the token list.
        #   # Failing 3 times indicates that the user has turned notifications off or
        #   # removed the app from the phone. If the user logs in and their token does
        #   # not exist it will be readded.
          puts "Device #{attempt.device_token} failed at #{attempt.timestamp}"
        end

        pusher.push( notification )

      end
    end

    # update model to prevent notifying again.
    self.pushed_to_mobile = true
    self.save
  end

  def pusher
    return @pusher if defined?( @pusher )
    @pusher = Grocer.pusher(
      certificate: Settings.apple_push_notification_options[:certificate],
      passphrase:  Settings.apple_push_notification_options[:pass],
      gateway:     Settings.apple_push_notification_options[:host],
      retries:     3
    )
  end

  def feedback
    return @feedback if defined?( @feedback )
    @feedback = Grocer.feedback(
      certificate: Settings.apple_push_notification_options[:certificate],
      passphrase:  Settings.apple_push_notification_options[:pass],
      gateway:     Settings.apple_push_notification_options[:host],
      retries:     3
    )
  end

如果我删除循环并强制代码发送到单个 token ，代码将运行并在设备上收到推送通知。但是，如果我尝试遍历 users.device_tokens 数组，代码会无误地执行，但设备上永远不会收到通知。

编辑:即使循环只运行一次。

Answer 1

问题与您访问 Grocer::Feedback 套接字的方式有关。尝试将您的 feedback 方法更改为以下内容。

def feedback
  @feedback ||= Grocer.feedback(
    certificate: Settings.apple_push_notification_options[:certificate],
    passphrase:  Settings.apple_push_notification_options[:pass],
    gateway:     Settings.apple_push_notification_options[:host],
    retries:     3
  )
  @feedback.to_a
end

调用 to_a 将强制读取当前反馈套接字上的任何内容。