Created
January 31, 2018 05:54
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class Payment(models.Model): | |
STATE_CHOICES = ( | |
('started', 'Started'), | |
('captured', 'Captured'), | |
('completed', 'Completed'), | |
) | |
state = models.CharField(choices=STATE_CHOICES, default='started', max_length=16) | |
def can_capture(self): | |
return self.state == 'started' | |
def can_complete(self): | |
return self.state == 'captured' | |
def capture(self): | |
if self.can_capture(): | |
self.contact_payment_gateway() | |
self.state = 'captured' | |
self.save() | |
else: | |
raise ValueError() | |
def complete(self): | |
if self.can_complete(): | |
self.state = 'completed' | |
self.save() | |
self.notify_user() | |
else: | |
raise ValueError() |
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