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eventify_backend/ledger/models.py

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from django.db import models
from django.conf import settings
User = settings.AUTH_USER_MODEL
class RazorpayTransaction(models.Model):
# Optional: who this transaction relates to
user = models.ForeignKey(User,
on_delete=models.SET_NULL,
null=True, blank=True,
related_name="razorpay_transactions",
)
# Razorpay identifiers
razorpay_order_id = models.CharField(max_length=191, unique=True)
razorpay_payment_id = models.CharField(max_length=191, blank=True, null=True)
razorpay_signature = models.CharField(max_length=255, blank=True, null=True)
# Generic linkage to any domain object (order, booking, wallet topup, etc.)
reference_type = models.CharField(
max_length=100,
blank=True, null=True,
help_text="What this payment is for, e.g. 'booking', 'wallet_topup', 'ticket'",
)
transaction_id = models.CharField(
max_length=100,
blank=True, null=True,
help_text="ID of the related for the transaction",
)
# Amount info (Razorpay uses smallest unit, e.g. paise)
amount = models.BigIntegerField(help_text="Amount in paise")
currency = models.CharField(max_length=10, default="INR")
# Status & method
status = models.CharField(
max_length=50,
help_text="created/authorized/captured/failed/refunded",
)
method = models.CharField(
max_length=50,
blank=True, null=True,
help_text="card/netbanking/wallet/upi/etc",
)
email = models.EmailField(blank=True, null=True)
contact = models.CharField(max_length=20, blank=True, null=True)
# Errors
error_code = models.CharField(max_length=100, blank=True, null=True)
error_description = models.TextField(blank=True, null=True)
# Extra data
notes = models.JSONField(blank=True, null=True)
raw_gateway_response = models.JSONField(
blank=True, null=True,
help_text="Full payload from Razorpay",
)
# Timestamps
created_at = models.DateTimeField(auto_now_add=True)
updated_at = models.DateTimeField(auto_now=True)
captured_at = models.DateTimeField(blank=True, null=True)
def __str__(self):
return f"{self.razorpay_payment_id or self.razorpay_order_id} - {self.status}"
def __save__(self):
if not self.transaction_id:
self.transaction_id = str(uuid.uuid4().hex[:10]).upper()
super().save(*args, **kwargs)