尝试更新数据库 - 获取错误参数数量错误？

Question

我正在为我的应用程序添加考勤跟踪，具有基本的clock-in/clock-out能力

这一行我得到 wrong number of arguments (0 for 1)：

scope :running, -> { where(clock_out: nil).where.not(clock_in: nil) }

这是我的：

控制器：

class AttendenceRecordsController < ApplicationController
  def clock_in
    @clock_in = current_user.attendence_records.create(clock_in: DateTime.current)
    respond_to do |format|
      if @clock_in.save
        format.html { redirect_to root_path, notice: "You've clocked in successfully" }
      else
        format.html { redirect_to root_path, notice: "Something went wrong, you were not clocked in" }
      end
    end

  end

  def clock_out
    current_user.attendence_records.running.first.finish!
    respond_to do |format|
        format.html { redirect_to root_path, notice: "You've clocked out successfully" }
    end

  end
end

型号

class AttendenceRecord < ActiveRecord::Base
  belongs_to :users


  scope :running, -> { where(clock_out: nil).where.not(clock_in: nil) }

  def finish!
    update(clock_out: DateTime.current)
  end
end

路线

Mysupport::Application.routes.draw do

  put "attendence_records/clock_in", to: "attendence_records#clock_in", as: :attendence_clock_in
  put "attendence_records/clock_out", to: "attendence_records#clock_out", as: :attendence_clock_out

end

查看

<ul class="dropdown-menu">
                  <li><%= link_to "Clock In", attendence_clock_in_path, method: :put %></li>
                  <li><%= link_to "Clock Out", attendence_clock_out_path, method: :put %</li>
</ul>

Answer 1

where.not在Rails4

中介绍

对于Rails3，使用

where('clock_in is not null')

Answer 2

您使用哪个版本的Rails？

在Rails3.xwhere.not中未实现。

尝试更新数据库 - 获取错误参数数量错误？

Trying to update database -- Get error wrong number of arguments?

ruby

ruby-on-rails

ruby-on-rails-3