我想在我的coach_id字段的表单中填入一个查询集结果的下拉列表。我只希望用户能够选择一个选项,而不是多个选项。我正在尝试使用ModelMultipleChoiceField ...失败......
QDomNode
这是我的模特:
class PersonForm(forms.ModelForm):
coach_id = forms.ModelMultipleChoiceField(queryset=Person.objects.filter(assign_as_coach="Person is a coach"), widget=forms.Select())
class Meta:
model = Person
fields = [ 'id', 'first_name', 'surname', 'email', 'coach_id', 'assign_as_coach', 'position', 'contract_type']
# exclude = ['initials', 'sam']
labels = {
'first_name': _('First Name'),
'surname': _('Surname'),
'email': _('Email'),
'coach_id': _('Select Coach'),
'assign_as_coach': _('Assign as a coach?'),
'position': _('Position'),
'contract_type': _('Contract Type'),
}
widgets = {
'first_name': forms.TextInput(
attrs={'placeholder': 'First Name', 'id': 'person-first-name'}
),
'surname': forms.TextInput(
attrs={'placeholder': 'Surname', 'id': 'person-surname'}
),
'email': forms.TextInput(
attrs={'placeholder': 'Email Address', 'id': 'person-email'}
),
# 'coach_id': forms.Select(
# attrs={'placeholder': 'Select Coach', 'id': 'person-coach-id'}
# ),
'assign_as_coach': forms.Select(
attrs={'placeholder': 'Assign person as a coach?', 'id': 'person-is-coach'}
),
'position': forms.TextInput(
attrs={'placeholder': 'Current position', 'id': 'person-position'}
),
'contract_type': forms.Select(
attrs={'placeholder': 'Select Contract Type', 'id': 'person-contract'}
),
目前我的模板上有一个coach_id选择字段渲染,其中没有任何内容并且格式错误。
答案 0 :(得分:0)
您可以将coach_id
重命名为coach
(否则您将获得有冲突的列名称)并将其设为同一模型的ForeignKey:coach=models.ForeignKey('self', on_delete=models.CASCADE, null=True)
。这将导致您的教练字段成为下拉列表。
然后,您可以通过设置表单queryset
方法中字段的init
属性来限制下拉菜单的选项:
self.fields['coach'].queryset = Person.objects.filter(assign_as_coach__exact='Y')
。