from django.db import models from apps.system.models import CommonBModel,CommonAModel,Dict from simple_history.models import HistoricalRecords from django.contrib.postgres.fields import ArrayField # Create your models here. class Certificate(CommonAModel): """ 证书表 """ certunit = models.ForeignKey('crm.Certunit', on_delete=models.CASCADE, null=True, blank=True, verbose_name='关联单元') enterprise = models.ForeignKey('crm.Enterprise', on_delete=models.CASCADE, verbose_name='所属公司') first_send = models.DateField('证书首发时间') used_start = models.DateField('有效期开始') used_end = models.DateField('有效期结束')