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django @property

MahmoudNoor answered on July 30, 2022 Popularity 9/10 Helpfulness 3/10

answer django @property

django @property

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class Project(models.Model):
    id = models.AutoField(primary_key=True)
    name = models.CharField(max_length=100)
    slug = models.SlugField(max_length=100, unique=True, blank=True)
    budget = models.IntegerField()

    def save(self, *args, **kwargs):
        self.slug = slugify(self.name)
        super(Project, self).save(*args, **kwargs)

    @property ### using this annotation you can use the method as a property (e.g. project.budget_left)
    def budget_left(self):
        expense_list = Expense.objects.filter(project=self)
        total_expense_amount = 0
        for expense in expense_list:
            total_expense_amount += expense.amount
        total_expense_amount = int(total_expense_amount)

        return self.budget - total_expense_amount

Popularity 9/10 Helpfulness 3/10 Language python

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Tags: django python

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Contributed on Jul 30 2022

MahmoudNoor

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