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from django.db import models
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from django.contrib.auth.models import User
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import datetime
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# Create your models here.
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class BuyableType(models.Model):
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name = models.CharField(max_length=100)
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def __unicode__(self):
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return self.name
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class Buyable(models.Model):
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name = models.CharField(max_length=100)
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price = models.FloatField()
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image = models.ImageField(upload_to='img/buyable/')
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deposit = models.FloatField()
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description = models.TextField()
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buyableType = models.ManyToManyField(BuyableType)
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def __unicode__(self):
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return "%s (%s EUR/%s Pfand)" % (self.name, self.price, self.deposit)
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class Purchase(models.Model):
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user = models.ForeignKey(User)
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dateTime = models.DateTimeField()
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price = models.FloatField()
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isDeposit = models.BooleanField()
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buyable = models.ForeignKey(Buyable)
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def __unicode__(self):
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return "%s%s, %s by %s" % (self.buyable.name, self.isDeposit and " (deposit)" or "", self.price, self.user)
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def create(self, buyable, isDeposit=None):
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"""constructor"""
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if isDeposit is not None:
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self.isDeposit = isDeposit
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self.dateTime = datetime.datetime.now()
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self.buyable = buyable
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if self.isDeposit:
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self.price = buyable.deposit
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else:
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self.price = buyable.price
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def save(self, *args, **kwargs):
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profile = self.user.get_profile()
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if self.id == None:
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# new item, get it!
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profile.balance -= self.price
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profile.save()
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super(Purchase, self).save(*args, **kwargs)
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