from django.db import models
from django_tidb.fields import BigAutoRandomField


class EventVoucher(models.Model):
    id = BigAutoRandomField(primary_key=True)
    unique_code = models.CharField(max_length=50, unique=True)
    lab_group_name = models.CharField(max_length=150, null=True)
    lab_codes = models.JSONField(null=True, default=list)
    start_begin_date = models.DateField(null=True)
    start_end_date = models.DateField(null=True)
    marketing_code = models.CharField(max_length=30)
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)
    credits_cost = models.IntegerField(null=True)
    event_name = models.CharField(max_length=80, null=True)

    class Meta:
        db_table = "event_vouchers"