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所以我有一個看起來像這幾個Django模型:過濾器在其他領域ForeignKeyFeild在現場選擇的值
class City(models.Model):
name = models.CharField("City", max_length=200)
def __unicode__(self):
return self.name
class Meta:
verbose_name_plural="Cities"
class Neighborhood(models.Model):
name = models.CharField("Neighborhood", max_length=200)
city = models.ForeignKey(City, verbose_name='City')
def __unicode__(self):
return self.name + " in " + str(self.city)
class Application(models.Model):
NUM_BED_CHOICES = ((1, u'Rollin Solo'), (2, u'2 Bedrooms'), (3, u'3 Bedrooms'), (4, u'4 Bedrooms'),)
LEASE_LENGTH_CHOICES = ((u'SUM', u'Summer'), (u'1YR', u'One Year'), (u'2YR', u'Two Years'), (u'2Y+', u'Two Years+'),)
user = models.ForeignKey(User)
neighborhood = models.ForeignKey(Neighborhood, verbose_name="Neighborhood")
moveinDate = models.DateField("Move-in Date")
numberOfBedrooms = models.SmallIntegerField("Number of Bedrooms", choices=NUM_BED_CHOICES)
leaseLength = models.CharField("Lease Length", max_length=3, choices=LEASE_LENGTH_CHOICES)
bedroomBudget = models.DecimalField("Budget Per-Bedroom", max_digits=10, decimal_places=2)
hasPet = models.BooleanField("Has Pet")
hasBeenPlaced = models.BooleanField("Has Been Placed", default=False)
class Meta:
verbose_name = "Application"
而且我對機應用模式的形式,這只是這個:
class ApplicationForm(ModelForm):
class Meta:
model = Application
exclude = ('hasBeenPlaced','user',)
我希望能夠選擇小工具添加到我的,允許用戶從在我的城市模型中的城市的一個對象選擇,然後過濾他們的選擇,基於該選擇的街區。例如:如果他們在這個領域外我想補充選擇「芝加哥」,所有不在芝加哥街區將被從現有社區的列表中刪除,以從選擇。這可能與Django?如果是這樣,那麼如何完成這樣的任務呢?
酷。我想我需要在那裏使用一些javscript/AJAX。只是想看看Django是否可能有內置的東西來幫助促成這樣的事情。 – 2012-02-22 21:23:06