我的models.py
:
class Profile(models.Model):
name = models.CharField(max_length=32)
gender = models.CharField(max_length=1, choices=(('m', 'male'),
('f', 'female')), default='m')
addresses = models.ManyToManyField(City,
related_name='user_city', through='User_City')
class User_City(models.Model):
user = models.ForeignKey(Profile)
address = models.ForeignKey(City)
phone = models.CharField(max_length=32)
class Meta:
unique_together = ("user", "address")
我的view.py
:
def user_profile(request, city):
a=Profile.objects.filter(addresses=city)
context_dict['lista'] = a
###first alternative:
#b=User_City.objects.filter(user=request.user, address=city)
#context_dict['lista_address'] = b
###second alternative:
#for c in a:
#b=User_City.objects.filter(user=c, address=city)
#c.phone=b.phone
#context_dict['lista_address'] = c
我的template.html
:
{% for user in lista %}
{{ user.name }}
{{ user.gender}}
{{ user.phone }}
#{{ user.addresses.phone }}
#{{ user.addresses__phone }}
{% endfor %}
它读取了姓名和性别但不是电话...... 我尝试了很多解决方案,但无济于事。
我可以添加lista_address context_dict,但后来我不知道如何在模板中使用(我应该在for循环中找到合适的用户)。
我可以在视图中添加一些属性,但它不起作用(属性不存在)。
感谢您的帮助
答案 0 :(得分:2)
addresses
是一个ManyToManyField
,那么{{ user.addresses.phone }}
(或其类似的)如何知道哪些地址(City
个实例)在那里可以看到向上phone
。
直接在User_City
个对象上循环,而不是Profiles
:
# view.py
a = city.user_city_set.all() # all through instances of city
# a = User_City.objects.filter(address=city)
# template.html
{% for u_c in lista %}
{{ u_c.user.name }}
{{ u_c.user.gender}}
{{ u_c.phone }}
{% endfor %}
还有一点:'user_city'
非常糟糕related_name
!它是用于访问Profile
的{{1}}个实例的相关管理员名称:
City