30 lines
903 B
Python
30 lines
903 B
Python
from django.db import models
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# Create your models here.
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class Account(models.Model):
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name = models.TextField(max_length=1024)
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number = models.TextField(max_length=1024)
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balance = models.IntegerField()
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class Asset(models.Model):
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ticker = models.TextField(max_length=20)
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price = models.FloatField()
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class AccountHolding(models.Model):
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account = models.ForeignKey(Account, on_delete=models.CASCADE)
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asset = models.ForeignKey(Asset, on_delete=models.CASCADE)
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ticker = models.TextField(max_length=20)
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ammount = models.FloatField()
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cost_basis = models.FloatField()
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purchase_date = models.DateTimeField()
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def holding_value(self):
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return self.ammount * self.asset.price
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def holding_principle(self):
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return self.ammount * self.cost_basis
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def holding_gain(self):
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return self.holding_value() - self.holding_principle()
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