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depot_django/payments/models.py

56 lines
2.3 KiB
Python

from django.contrib.auth.models import User
from django.db import models
from accounts.models import DepotUser
from common.models import CompanyModel
from containers.models import Container
# Create your models here.
class Payment(models.Model):
invoice_number = models.CharField(max_length=50, unique=True)
total_amount = models.DecimalField(max_digits=10, decimal_places=2)
company = models.ForeignKey(CompanyModel, related_name='payment_company', on_delete=models.CASCADE)
created_on = models.DateTimeField(auto_now_add=True)
created_by = models.ForeignKey(DepotUser, related_name='payments_user', on_delete=models.CASCADE)
paid = models.BooleanField(default=False)
paid_on = models.DateTimeField(auto_now_add=True)
paid_info = models.TextField(blank=True, null=True)
description = models.CharField(max_length=255, blank=True, null=True)
def clean(self):
if Payment.objects.filter(invoice_number=self.invoice_number).exclude(id=self.id).exists():
raise ValueError(f'Payment with invoice number {self.invoice_number} already exists.')
class PaymentItem(models.Model):
payment = models.ForeignKey(Payment, related_name='payment_items', on_delete=models.CASCADE)
container = models.ForeignKey(Container, related_name='payment_containers', on_delete=models.CASCADE)
amount = models.DecimalField(max_digits=10, decimal_places=2)
class ContainerTariffPeriod(models.Model):
CONTAINER_SIZE_CHOICES = [
('20', '20 feet'),
('40', '40/45 feet'),
]
container_size = models.CharField(max_length=2, choices=CONTAINER_SIZE_CHOICES)
from_days = models.PositiveIntegerField()
to_days = models.PositiveIntegerField(null=True, blank=True) # null for last period (16+ days)
daily_rate = models.DecimalField(max_digits=6, decimal_places=2)
class Meta:
unique_together = ['container_size', 'from_days']
ordering = ['container_size', 'from_days']
class AdditionalFees(models.Model):
reefer_daily_supplement = models.DecimalField(max_digits=6, decimal_places=2, default=3.00)
sweeping_fee = models.DecimalField(max_digits=6, decimal_places=2, default=35.00)
fumigation_fee = models.DecimalField(max_digits=6, decimal_places=2, default=75.00)
class Meta:
verbose_name = 'Additional Fees'
verbose_name_plural = 'Additional Fees'