Hello everyone was requesting for help on this micro-finance software am
developing, needed to make the account balance reflect updated
amount/value on the database when deposits/withdraws are made on either the
account or loan repayment
*class Branch(models.Model):*
time_stamp =models.DateTimeField(default=datetime.datetime.now(),
editable=False)
name =models.CharField(max_length=200)
physical_location=models.CharField(max_length=200)
email =models.EmailField()
*class Account(models.Model):*
account_type =models.CharField(max_length=200, choices=ACCTYPE)
branch =models.ForeignKey('Branch')
first_name =models.CharField(max_length=200)
last_name =models.CharField(max_length=200)
account_number =models.SlugField(unique=True)
account_current_balance =models.FloatField(max_length=255,default=0)
*
class Account_holder(models.Model):*
id =models.IntegerField(primary_key=True,default=1)
account_id =models.ManyToManyField(Account)
*
class Loan(models.Model):*
id = models.AutoField(primary_key=True,default=1)
branch_cod =models.IntegerField(blank=True, null=True)
time_years =models.DecimalField(default=1.0, max_digits=10,
decimal_places=4)
loan_number =models.SlugField(unique=True)
account_name =models.ForeignKey(Account)
loan_amount =models.DecimalField(default=0.0, max_digits=10,
decimal_places=2)
interest_rate =models.DecimalField(default=0.0, max_digits=10,
decimal_places=2)
interest_charged = models.DecimalField(default=0.0, max_digits=10,
decimal_places=2, editable=False)
required_payement = models.DecimalField(default=1.0, max_digits=10,
decimal_places=2)
*
class statement(models.Model):*
account_id =models.ForeignKey(Account)
date = models.DateTimeField(default=datetime.datetime.now(),
editable=False)
deposit = models.PositiveIntegerField(null=True, default=0)
withdraw = models.PositiveIntegerField(null=True, default=0)
description =models.TextField(max_length=200)
current_balance = models.FloatField(max_length=200, editable=False)
def save(self, *args, **kwargs):
self.current_balance = self.account_id.average_balance +
self.credit - self.debit
self.average_balance = self.account_id.average_balance +
self.credit - self.debit -self.minimum_balance
super(statement,self).save(*args, **kwargs)
*
class Savant_user(models.Model):*
user =models.OneToOneField(User)
branch =models.ManyToManyField('Branch')
def create_Dashboard_user_callback(sender, instance, **kwargs):
Dashboard, new = Savant_user.objects.get_or_create(user=instance)
post_save.connect(create_Dashboard_user_callback, User)
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