form 里 choices的设定 设置

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  • 26 Oct

from django import forms
from .models import Teacher
from django.forms import widgets

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class SelectDemo(forms.Form):
teacher = forms.CharField(
label="老师",
initial=[1, ],
widget=widgets.Select())

# 保证每次访问重新获取最新数据
def __init__(self, *args, **kwargs):
    super().__init__(*args, **kwargs)
    self.fields["teacher"].widget.choices = Teacher.objects.values_list("id", "name")


    self.fields['happen_date'].widget.attrs['value'] = '2020-01-01'
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