168 lines
6.6 KiB
Python
168 lines
6.6 KiB
Python
from django.db import models
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from django.contrib.auth.models import User
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from django.conf import settings
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from regluit.core.models import Campaign, Wishlist, Premium
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from regluit.payment.parameters import *
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from decimal import Decimal
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import uuid
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class Transaction(models.Model):
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# type e.g., PAYMENT_TYPE_INSTANT or PAYMENT_TYPE_AUTHORIZATION -- defined in parameters.py
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type = models.IntegerField(default=PAYMENT_TYPE_NONE, null=False)
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# host: the payment processor. Named after the payment module that hosts the payment processing functions
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host = models.CharField(default=settings.PAYMENT_PROCESSOR, max_length=32, null=False)
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# target: e.g, TARGET_TYPE_CAMPAIGN, TARGET_TYPE_LIST -- defined in parameters.py
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target = models.IntegerField(default=TARGET_TYPE_NONE, null=False)
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#execution: e.g. EXECUTE_TYPE_CHAINED_INSTANT, EXECUTE_TYPE_CHAINED_DELAYED, EXECUTE_TYPE_PARALLEL
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execution = models.IntegerField(default=EXECUTE_TYPE_NONE, null=False)
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# status: general status constants defined in parameters.py
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status = models.CharField(max_length=32, default='None', null=False)
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# local_status: status code specific to the payment processor
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local_status = models.CharField(max_length=32, default='NONE', null=True)
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# amount & currency -- amount of money and its currency involved for transaction
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amount = models.DecimalField(default=Decimal('0.00'), max_digits=14, decimal_places=2) # max 999,999,999,999.99
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max_amount = models.DecimalField(default=Decimal('0.00'), max_digits=14, decimal_places=2) # max 999,999,999,999.99
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currency = models.CharField(max_length=10, default='USD', null=True)
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# a unique ID that can be passed to PayPal to track a transaction
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secret = models.CharField(max_length=64, null=True)
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# a paykey that PayPal generates to identify this transaction
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pay_key = models.CharField(max_length=128, null=True)
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# a preapproval key that Paypal generates to identify this transaction
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preapproval_key = models.CharField(max_length=128, null=True)
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# (RY is not sure what receipt is for)
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receipt = models.CharField(max_length=256, null=True)
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# whether a Preapproval has been approved or not
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approved = models.NullBooleanField(null=True)
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# error message from a PayPal transaction
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error = models.CharField(max_length=256, null=True)
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# IPN.reason_code
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reason = models.CharField(max_length=64, null=True)
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# creation and last modified timestamps
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date_created = models.DateTimeField(auto_now_add=True)
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date_modified = models.DateTimeField(auto_now=True)
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# date_payment: when an attempt is made to make the primary payment
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date_payment = models.DateTimeField(null=True)
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# date_executed: when an attempt is made to send money to non-primary chained receivers
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date_executed = models.DateTimeField(null=True)
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# datetime for creation of preapproval and for its expiration
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date_authorized = models.DateTimeField(null=True)
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date_expired = models.DateTimeField(null=True)
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# associated User, Campaign, and Premium for this Transaction
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user = models.ForeignKey(User, null=True)
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campaign = models.ForeignKey(Campaign, null=True)
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premium = models.ForeignKey(Premium, null=True)
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# list: makes allowance for pledging against a Wishlist: not currently in use
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list = models.ForeignKey(Wishlist, null=True)
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# whether the user wants to be not listed publicly
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anonymous = models.BooleanField(null=False)
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def save(self, *args, **kwargs):
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if not self.secret:
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self.secret = str(uuid.uuid1())
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super(Transaction, self).save(*args, **kwargs) # Call the "real" save() method.
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def __unicode__(self):
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return u"-- Transaction:\n \tstatus: %s\n \t amount: %s\n \treference: %s\n \terror: %s\n" % (self.status, str(self.amount), self.preapproval_key, self.error)
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def create_receivers(self, receiver_list):
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primary = True
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for r in receiver_list:
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receiver = Receiver.objects.create(email=r['email'], amount=r['amount'], currency=self.currency, status="None", primary=primary, transaction=self)
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primary = False
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def get_payment_class(self):
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'''
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Returns the specific payment module that implements this transaction
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'''
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if self.host == PAYMENT_HOST_NONE:
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return None
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else:
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mod = __import__("regluit.payment." + self.host, fromlist=[str(self.host)])
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return mod
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class PaymentResponse(models.Model):
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# The API used
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api = models.CharField(max_length=64, null=False)
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# The correlation ID
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correlation_id = models.CharField(max_length=512, null=True)
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# the paypal timestamp
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timestamp = models.CharField(max_length=128, null=True)
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# extra info we want to store if an error occurs such as the response message
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info = models.CharField(max_length=1024, null=True)
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# local status specific to the api call
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status = models.CharField(max_length=32, null=True)
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transaction = models.ForeignKey(Transaction, null=False)
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def __unicode__(self):
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return u"PaymentResponse -- api: {0} correlation_id: {1} transaction: {2}".format(self.api, self.correlation_id, unicode(self.transaction))
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class Receiver(models.Model):
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email = models.CharField(max_length=64)
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amount = models.DecimalField(default=Decimal('0.00'), max_digits=14, decimal_places=2) # max 999,999,999,999.99
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currency = models.CharField(max_length=10)
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status = models.CharField(max_length=64)
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local_status = models.CharField(max_length=64, null=True)
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reason = models.CharField(max_length=64)
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primary = models.BooleanField()
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txn_id = models.CharField(max_length=64)
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transaction = models.ForeignKey(Transaction)
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def __unicode__(self):
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return u"Receiver -- email: {0} status: {1} transaction: {2}".format(self.email, self.status, unicode(self.transaction))
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from django.db.models.signals import post_save, post_delete
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import regluit.payment.manager
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# handle any save, updates to a payment.Transaction
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def handle_transaction_change(sender, instance, created, **kwargs):
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campaign = instance.campaign
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if campaign:
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campaign.update_left()
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return True
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# handle any deletes of payment.Transaction
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def handle_transaction_delete(sender, instance, **kwargs):
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campaign = instance.campaign
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if campaign:
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campaign.update_left()
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return True
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post_save.connect(handle_transaction_change,sender=Transaction)
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post_delete.connect(handle_transaction_delete,sender=Transaction)
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