37 lines
1.5 KiB
Python
37 lines
1.5 KiB
Python
from django.conf import settings
|
|
from django.db import models
|
|
import uuid
|
|
from django.utils.translation import gettext_lazy as _
|
|
from oauth2_provider.settings import oauth2_settings
|
|
from rest_framework.exceptions import APIException
|
|
|
|
from apps.wallet.constans import StateChoices
|
|
|
|
|
|
class Charge(models.Model):
|
|
uuid = models.UUIDField(primary_key=True, editable=True, default=uuid.uuid4, unique=True,
|
|
db_index=True) # reserve_code
|
|
created_at = models.DateTimeField(auto_now_add=True, null=True)
|
|
updated_at = models.DateTimeField(auto_now=True, null=True)
|
|
application = models.ForeignKey(oauth2_settings.APPLICATION_MODEL, on_delete=models.PROTECT,
|
|
related_name='+', null=True)
|
|
state = models.IntegerField(choices=StateChoices.choices, default=StateChoices.CREATED)
|
|
user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.PROTECT)
|
|
amount = models.PositiveBigIntegerField(null=True, blank=True)
|
|
|
|
def change_state(self, from_state, to_state, error_message=None, **data):
|
|
if self.state == from_state:
|
|
updated = Charge.objects.filter(pk=self.pk, state=from_state).update(
|
|
state=to_state,
|
|
**data
|
|
)
|
|
if updated: # double check in db level
|
|
self.state = to_state
|
|
else:
|
|
raise APIException(error_message)
|
|
else:
|
|
raise APIException(error_message)
|
|
|
|
|
|
|
|
|