from django.shortcuts import render
from django.forms import Form
from django.forms import fields
from django.forms import widgets
from django.forms.models import ModelChoiceField
from rbac import models
手动档:
class UserInfoModelForm(Form):
name = fields.CharField(required=True, error_messages={"required": "用户名不能为空"})
email = fields.EmailField(required=True)
# 这样写不能时时更新,因为它是静态字段,只会在声明这个class的时候访问数据库一次
# part = fields.ChoiceField(choices=models.Role.objects.value_list("id","caption"))
part = fields.ChoiceField()
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
# 此种方式下,每次new form对象,都会执行数据库查询,数据时时更新
self.fields["part"].choices = models.Role.objects.value_list("id", "caption")
自动档:
class UserInfoModelForm(Form):
name = fields.CharField(required=True, error_messages={"required": "用户名不能为空"})
email = fields.EmailField(required=True)
# 此种方式和手动挡效果一样,但是它会默认将model_obj中的pk作为select选择option的value值,不能配置,不推荐使用
part = ModelChoiceField(queryset=models.Role.objects.all())
def index(request):
form = UserInfoModelForm()
return render(request,"index.html",{"from":form})
