是否可以通过过滤器查询访问父模型中的字段?你知道吗
例如,如果我有以下模型结构:
class Space(models.Model):
name = models.CharField(max_length=500)
ident = models.CharField(max_length=4)
# Meta
class Meta:
abstract = True
class Airwaves(Space):
@cached_property
def stations(self):
name_substr = self.name
if " " in name_substr:
name_substr = name_substr[:name_substr.index(" ")]
return Station.objects.filter(Q(ident__contains=self.ident) |
Q(name__contains=self.name) |
Q(name__contains=name_substr))
class Radio(models.Model):
# The fields I would like to access from Airwaves
ident = models.CharField(max_length=4)
name = models.CharField(max_length=500)
# Meta
class Meta:
abstract = True
class Station(Radio):
frequency = models.DecimalField(max_digits=8, decimal_places=2)
使用现有代码,我得到错误Cannot resolve keyword 'ident' into field. Choices are: frequency, id
。你知道吗
如何访问Airwaves
中筛选器查询的ident
和name
字段?你知道吗
目前没有回答
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