西游之路——python全栈——Form组件字段及动态绑定

1 text = "<input type‘text‘ />"
2 from django.utils.safestring import mark_safe
3 text = mark_safe(text)

 1 from django.shortcuts import render
 2 
 3 from django import forms
 4 from django.forms import fields,widgets
 5 from app01 import models
 6 class LoveForm(forms.Form):
 7     price = fields.IntegerField()
 8     user_id = fields.IntegerField(
 9         # widget=widgets.Select(choices=[(1,‘alex‘),(2,‘xialv‘),(3,‘sb‘),])
10         # 数据库取值
11         widget=widgets.Select()
12     )
13     # 设置动态绑定，随时更新数据
14     def __init__(self,*args,**kwargs):
15         # super必须在前，拷贝所有的静态字段，复制给self.fields
16         super(LoveForm,self).__init__(*args,**kwargs)
17         self.fields[‘user_id‘].widget.choices = models.UserInfo.objects.values_list(‘id‘,‘username‘)
18 
19 def love(request):
20     obj = LoveForm()
21     return render(request,‘love.html‘,locals())