How to use Go language to write the delivery staff working time management module in the door-to-door cooking system?

How to use Go language to write the delivery staff working time management module in the door-to-door cooking system?

With the booming development of the takeout market, the door-to-door cooking system has also become a convenient choice in people's lives. In the door-to-door cooking system, the delivery person is a crucial part. Good working time management is very important for delivery staff's work efficiency and user experience. This article will introduce how to use Go language to write the delivery staff working time management module in the door-to-door cooking system, and provide specific code examples.

1. Requirement Analysis

In the door-to-door cooking system, delivery personnel usually need to arrange delivery tasks according to the time when users place orders. The delivery staff's working hours should be within the scope of system management, and special handling of various situations needs to be taken into account. For example:

• Delivery staff should have rest and working time, and the working hours should be based on the user's Flexible adjustments according to needs.
• Delivery workers may have multiple working time models, such as full-time, part-time, etc.
• Delivery personnel may have other tasks or arrangements outside of working hours.

2. Data model design

In order to implement the delivery staff working time management module, the corresponding data model needs to be designed first. You can consider using the following data structure:

type DeliveryTime struct {
    StartTime time.Time // 工作开始时间
    EndTime   time.Time // 工作结束时间
}

In the delivery person data model, add a field to represent the delivery person's working hours:

type DeliveryPerson struct {
    Name         string         // 配送员姓名
    DeliveryTime []DeliveryTime // 配送员工作时间段
}

3. Functional design

After completing the data model design, it is necessary to implement the relevant functions of the delivery staff working time management module:

• Add working time
• Delete working time
• Query Working hours
• Update working hours

You can define an externally exposed interface to implement the above functions:

type DeliveryPersonService interface {
    AddWorkTime(startTime time.Time, endTime time.Time) error
    RemoveWorkTime(startTime time.Time, endTime time.Time) error
    GetWorkTime() ([]DeliveryTime, error)
    UpdateWorkTime(oldStartTime, oldEndTime, newStartTime, newEndTime time.Time) error
}

4. Code implementation

Based on the above requirements and functional design, we can use Go language for code implementation. The following is a simple example:

type deliveryPersonService struct {
    deliveryPerson *DeliveryPerson
}

func (d *deliveryPersonService) AddWorkTime(startTime time.Time, endTime time.Time) error {
    d.deliveryPerson.DeliveryTime = append(d.deliveryPerson.DeliveryTime, DeliveryTime{
        StartTime: startTime,
        EndTime:   endTime,
    })
    return nil
}

func (d *deliveryPersonService) RemoveWorkTime(startTime time.Time, endTime time.Time) error {
    for i, time := range d.deliveryPerson.DeliveryTime {
        if time.StartTime == startTime && time.EndTime == endTime {
            d.deliveryPerson.DeliveryTime = append(d.deliveryPerson.DeliveryTime[:i], d.deliveryPerson.DeliveryTime[i+1:]...)
            return nil
        }
    }
    return errors.New("work time not found")
}

func (d *deliveryPersonService) GetWorkTime() ([]DeliveryTime, error) {
    return d.deliveryPerson.DeliveryTime, nil
}

func (d *deliveryPersonService) UpdateWorkTime(oldStartTime, oldEndTime, newStartTime, newEndTime time.Time) error {
    for i, time := range d.deliveryPerson.DeliveryTime {
        if time.StartTime == oldStartTime && time.EndTime == oldEndTime {
            d.deliveryPerson.DeliveryTime[i] = DeliveryTime{
                StartTime: newStartTime,
                EndTime:   newEndTime,
            }
            return nil
        }
    }
    return errors.New("work time not found")
}

5. Usage example

func main() {
    // 创建一个配送员对象
    deliveryPerson := &DeliveryPerson{
        Name:         "John",
        DeliveryTime: []DeliveryTime{},
    }

    // 创建配送员服务对象
    service := &deliveryPersonService{
        deliveryPerson: deliveryPerson,
    }

    // 添加工作时间
    service.AddWorkTime(time.Date(2022, time.January, 1, 9, 0, 0, 0, time.UTC), time.Date(2022, time.January, 1, 18, 0, 0, 0, time.UTC))

    // 查询工作时间
    workTime, _ := service.GetWorkTime()
    fmt.Println("Work Time:", workTime)

    // 删除工作时间
    service.RemoveWorkTime(time.Date(2022, time.January, 1, 9, 0, 0, 0, time.UTC), time.Date(2022, time.January, 1, 18, 0, 0, 0, time.UTC))

    // 查询工作时间
    workTime, _ = service.GetWorkTime()
    fmt.Println("Work Time:", workTime)
}

The above code example demonstrates how to use Go language to write delivery staff working time management in the door-to-door cooking system module. By defining the data model and implementing related functions, the delivery staff's working hours can be easily managed and external interfaces can be provided for use by other modules. Writing such a module can effectively improve the work efficiency and service quality of delivery personnel, and provide users with a better door-to-door cooking experience.

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