1
所以我有一个看起来像这几个Django模型:过滤器在其他领域ForeignKeyFeild在现场选择的值
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"
而且我对机应用模式的形式,这只是这个:
class ApplicationForm(ModelForm):
class Meta:
model = Application
exclude = ('hasBeenPlaced','user',)
我希望能够选择小工具添加到我的,允许用户从在我的城市模型中的城市的一个对象选择,然后过滤他们的选择,基于该选择的街区。例如:如果他们在这个领域外我想补充选择“芝加哥”,所有不在芝加哥街区将被从现有社区的列表中删除,以从选择。这可能与Django?如果是这样,那么如何完成这样的任务呢?
酷。我想我需要在那里使用一些javscript/AJAX。只是想看看Django是否可能有内置的东西来帮助促成这样的事情。 – 2012-02-22 21:23:06