Django ';成员';对象没有属性';全部';
我的模型定义为:Django ';成员';对象没有属性';全部';,django,django-forms,Django,Django Forms,我的模型定义为: class MembershipHistory(models.Model): mem_name = models.ForeignKey(Member, on_delete=models.CASCADE, related_name='mem_number') project_number = models.IntegerField() project_name = models.CharField(max_length=200) evaluator
class MembershipHistory(models.Model):
mem_name = models.ForeignKey(Member, on_delete=models.CASCADE, related_name='mem_number')
project_number = models.IntegerField()
project_name = models.CharField(max_length=200)
evaluator_remark = models.TextField(null=True, blank=True)
这是我制作ForeignKey
class Member(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE)
name = models.CharField(max_length=200)
membership_number = models.CharField(max_length=10)
我把我的表格定义为
class MembershipHistoryForm(forms.Form):
def __init__(self,*args, **kwargs):
self.user = kwargs.pop('user')
super(MembershipHistoryForm, self).__init__(*args, **kwargs)
self.fields['mem_name'].queryset = Member.objects.get(user=self.user)
#mem_name = forms.ModelChoiceField(empty_label="NAME")
class Meta:
model = MembershipHistory
fields = '__all__'
widgets = {
'project_number':forms.TextInput(attrs={'placeholder':'Project Number'}),
'project_name':forms.TextInput(attrs={'placeholder':'Project Name'}),
'evaluator_remark':forms.Textarea(attrs={'placeholder':'Evaluator Remark'}),
}
现在,无论何时实例化表单,都不会出现以下错误
Django Version: 1.10.4
Exception Type: AttributeError
Exception Value: 'Member' object has no attribute 'all'
关于错误在哪里有什么想法吗?我假设是因为您没有将查询集分配给
成员名
查询集
使用filter
而不是get
Member.objects.filter(user=self.user)
虽然此时,我想知道为什么您需要一个queryset,但从表单中排除此字段,然后在保存实例之前设置用户会更有意义。如果您检查正确的django文档,您可以看到
get()
get(**kwargs)
Returns the object matching the given lookup parameters
这意味着它在适当的情况下返回的对象不是queryset,而是form
需要queryset,因此使用get
方法而不是filter
self.fields['mem_name'].queryset = Member.objects.filter(user=self.user)