标签：require 提交数据 htm 显示 djang def error 自定义 数据
Django的Form主要具有一下几大功能：
1、view中创建Form类并进行函数处理
class FM(forms.Form):
user = fields.CharField()
pwd = fields.CharField()
email = fields.EmailField()
def fm(request):
if request.method == "GET":
obj = FM()
return render(request, ‘fm.html‘, {‘obj‘: obj})
elif request.method == "POST":
# 获取用户所有数据
# 每条数据请求的验证
# 成功：获取所有的正确的信息
# 失败：显示错误信息
obj = FM(request.POST) # 生成from表单验证对象实例
r1 = obj.is_valid() # 获取obj对象是否有效
if r1:
# obj.cleaned_data
print(r1)
print(obj.changed_data)
else:
print(r1)
print(obj.errors.as_json())
# 错误信息字典形式
# {"user": [{"message": "This field is required.", "code": "required"}],
# "pwd": [{"message": "This field is required.", "code": "required"}],
# "email": [{"message": "This field is required.", "code": "required"}]}
print(obj.errors[‘user‘][0])
return redirect("/fm/")
2、生成HTML.
标签：require 提交数据 htm 显示 djang def error 自定义 数据
原文地址：https://www.cnblogs.com/Keep-Ambition/p/8973287.html
