forgeplus/app/models/user_action.rb

# == Schema Information
#
# Table name: user_actions
#
#  id          :integer          not null, primary key
#  user_id     :integer
#  action_type :string(255)
#  action_id   :integer
#  created_at  :datetime         not null
#  updated_at  :datetime         not null
#  ip          :string(255)
#  data_bank   :text(65535)
#  login       :string(255)
#  phone       :string(255)
#  email       :string(255)
#  memo        :text(65535)
#
# Indexes
#
#  index_user_actions_on_action_id    (action_id)
#  index_user_actions_on_action_type  (action_type)
#  index_user_actions_on_ip           (ip)
#  index_user_actions_on_user_id      (user_id)
#

class UserAction < ApplicationRecord

  after_save :add_user_info

  serialize :data_bank, JSON

  def action_name
    case action_type
    when "DestroyUser" then "用户注销"
    when "DestroyProject" then "删除项目"
    when "Login" then "登录"
    when "Logout" then "退出登录"
    else self.action_type
    end
  end

  def opt_user_name
    user = User.find_by(id: self.user_id)
    if user.present?
      user&.login
    else
      del_user = UserAction.find_by(action_type: "DestroyUser", action_id: self.user_id)
      del_user.present? ? del_user.user.login : "不存在用户：#{user_id}"
    end
  end

  def action_info
    case action_type
    when "DestroyUser" then "账号：#{user&.login}<br/>邮箱：#{user&.mail}<br/>手机号：#{user&.phone}<br/>昵称：#{user&.nickname}<br/>"
    when "DestroyProject" then "项目名称：#{project&.name}<br/>项目标识：#{project&.identifier}<br/>"
    else "--"
    end
  end

  def user
    action_user = if action_type == "DestroyUser" && data_bank.present?
                    build_mode("User")
                  else
                    User.find_by(id: self.user_id)
                  end
    action_user
  end

  def project
    action_project = if action_type == "DestroyProject" && data_bank.present?
                    build_mode("Project")
                  else
                    Project.find_by(id: self.action_id)
                  end
    action_project
  end
  def build_mode(model_name)
    model = model_name.constantize.new
    model_name.constantize.column_names.each do |col|
      data = self.data_bank.class == String ? JSON.parse(self.data_bank) : self.data_bank
      model[col] = data[col]
    end
    model
  rescue =>err
    return nil
  end

  private
  def add_user_info
    if self.login.blank?
      if user.present?
        self.login = user.login
        self.email = user.mail
        self.phone = user.phone
      end
    end
  end
end