Question

我是django的新手，我在显示平均时间时遇到问题我的数据库模型是

from django.db import models


class Employee(models.Model):
    class Meta:
        db_table = 'Employee'

    emp_id = models.IntegerField(primary_key=True)
    name = models.CharField(max_length=100, blank=True, null=True)
    department_id = models.IntegerField(blank=True, null=True)
    position = models.CharField(max_length=100, blank=True, null=True)

    def __str__(self):
        return self.name


class AttendanceRecord(models.Model):
    class Meta:
        db_table = 'AttendanceRecord'

    emp_id = models.ForeignKey(Employee, on_delete=models.CASCADE)
   # emp_id = models.CharField(max_length=100, blank=True, null=True)
    date = models.CharField(max_length=100, blank=True, null=True)
    miti = models.CharField(max_length=100, blank=True, null=True)
    day = models.CharField(max_length=100, blank=True, null=True)
    in_time = models.CharField(max_length=100, blank=True, null=True)
    out_time = models.CharField(max_length=100, blank=True, null=True)
    punch_count = models.IntegerField(blank=True, null=True)
    time_spent = models.FloatField(blank=True, null=True)
    difference_time = models.FloatField(blank=True, null=True)

    def __str__(self):
        return self.emp_id.name

class Department:
    class Meta:
        db_table = 'Department'

    department_id = models.IntegerField(primary_key=True)
    staff_count= models.IntegerField()

我的报告视图是：我想平均in_time，以便我可以平均它并显示在报告模板中。我不知道怎么办。

from attendance.models import AttendanceRecord



class Report:

    def get_all_employee_data(from_date, to_date):
        all_employee_list = AttendanceRecord.objects.filter(miti__gt=from_date, miti__lt=to_date).order_by(
            '-miti')

        return all_employee_list

    def get_specific_emp_data(from_date, to_date, e_id):
        specific_employee_list = AttendanceRecord.objects.filter(miti__gt=from_date, miti__lt=to_date,
                                                                 emp_id=e_id).order_by('-miti')

        return specific_employee_list

我的测试数据如下所示 TEST DATA

如何显示在django中花费的平均时间（in_time和out_time）？我使用聚合吗？

0 个答案: