Ruby on rails 在Rails应用程序中满足条件时，向帐户中的多个用户发送电子邮件

我有一个rails应用程序，我想在满足某些条件时向用户发送通知。我可以通过rake任务来实现这一点。目前，我可以选择符合条件的记录，并通过电子邮件将其发送到特定地址。问题是它会发送所有帐户的所有记录。以下是我在rake任务中的内容：

task :send_reminds => :environment do
    equipment = Equipment.where("calibration_date <= ?", Date.today)
    EquipmentMailer.out_of_calibration(equipment).deliver
end

以下是我的设备Mailer的代码：

class EquipmentMailer < ActionMailer::Base
  default :from => "mark.odonnell@azzurgroup.com"

  def out_of_calibration(equipment)
    @equipment = Equipment.where("calibration_date <= ?", Date.today)
    mail(:to => "markaodonnell@gmail.com", :subject => "Equipment is out of calibration")
  end
end

以下是我的HTML电子邮件的代码，它可以正常工作：

The following Equipment is Due:
<br></br>
<table>
  <tr>
    <th>Equipment Name</th>
    <th>   </th>
    <th>Calibration Due Date</th>
  </tr>
  <% @equipment.each do |equipment| %>
  <tr>
    <td><%= equipment.equipment_id %></td>
    <td>  </td>
    <td><%= equipment.calibration_date %></td>
  </tr>
<% end %>
</table>

正如你所见，我将直接向自己发送电子邮件，并收到符合标准的设备清单。但这当然是不可接受的。我希望电子邮件发送给帐户中所有设备未校准的用户。以下是我的模型：

设备.rb

class Equipment < ActiveRecord::Base
  acts_as_tenant(:account)

  validates :equipment_id, presence: true
  validates :location, presence: true

  validates_uniqueness_to_tenant :serial_number

  has_many :assets, :dependent => :destroy
  accepts_nested_attributes_for :assets, :allow_destroy => true

  has_paper_trail


def self.text_search(query)
    if query.present?
  search(query)
    else
        scoped
    end
end

User.rb

    class User < ActiveRecord::Base
  acts_as_tenant(:account)
  validates_uniqueness_to_tenant :email

   attr_accessible :name, :email, :password, :password_confirmation, :title, :company,
                                    :phone, :mobile,     :admin
  has_secure_password
  before_save :create_remember_token

  belongs_to :account

  validates :name, presence: true, length: { maximum: 50 }
  VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i
  validates :email, presence:   true,
                format:     { with: VALID_EMAIL_REGEX }
  validates :password, length: { minimum: 6 }
  validates :password_confirmation, presence: true

#  has_paper_trail

  private

    def create_remember_token
      self.remember_token = SecureRandom.urlsafe_base64
    end
end

Account.rb

    class Account < ActiveRecord::Base
  attr_accessible :subdomain, :email
  VALID_SUBDOMAIN_REGEX = /\A[\w+\-.]+(-[a-z\d])+(-[a-z\d])/i
  VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i
  validates :subdomain, :presence => true, 
            :uniqueness => true
  validates :email, :presence => true,
            format: { with: VALID_EMAIL_REGEX }

  validates_presence_of :plan_id  

  belongs_to :plan

  has_many  :users
  has_many  :equipment, :through => :users

  before_save { |account| account.subdomain = account.subdomain.downcase }
end

我在邮件中尝试了类似的方法：to=>user.email，而不是直接地址，同时将设备列表限制为特定于帐户及其用户

@equipment = Equipment.where("calibration_date <= ?", Date.today)  
  @equipment.each do |equipment|
    equipment.accounts.each do |account|
      accounts.users.each do |user|
        user.email.each do |email|
          mail(:to => email, :subject => "Equipment is out of calibration"
        end
      end
    end
  end

---

rake任务将无错误运行，但我没有收到电子邮件。思想？顺便说一句，我对rails只有一个月的了解，所以如果我遗漏了一些非常基本的东西，你必须原谅我。

我猜问题就出在这段代码中

def out_of_calibration(equipment)
    @equipment = Equipment.where("calibration_date <= ?", Date.today)
    mail(:to => "markaodonnell@gmail.com", :subject => "Equipment is out of calibration")
  end

---

您根本没有使用传递给该方法的参数。

您的关联看起来不正确，看起来帐户应该有很多设备，帐户应该有很多用户。用户应属于账户，设备应属于账户。设备可以属于多个帐户吗？没有道理。我建议如下：

class Account < ActiveRecord::Base
 has_many :users
 has_many :equipments
end

class User < ActiveRecord::Base
  belongs_to :account
end

class Equipment < ActiveRecord::Base
  belongs_to :account
  has_many :equipments, :through => :account
end

@equipment = Equipment.where("calibration_date <= ?", Date.today)  
  @equipment.each do |equipment|
    equipment.users.each do |user|
      mail(:to => user.email, :subject => "Equipment is out of calibration"
  end
end

---

对的我需要换一个markaodonnell@gmail.com类似user.email的东西，但我需要定义该电子邮件，即设备的日期