Django WSGIRequest' object has no attribute

from django.contrib import admin
from jgwx.models import gjz
from django import forms

class gjzForm(forms.ModelForm):
    title1 = forms.CharField(initial=u'1:标题',widget=forms.TextInput())
    description1 = forms.CharField(initial=u'1:描述',widget=forms.TextInput())
    url1 = forms.CharField(initial=u'1:正文的链接',widget=forms.TextInput())
    imageurl1 = forms.CharField(initial=u'1:封面的链接',widget=forms.TextInput())

    class Meta:
       forms.model = gjz


class gjzAdmin(admin.ModelAdmin):

    list_display = ('rev_mes', 'send_mes', 'send_mes_type')
    form = gjzForm
    def save_model(self, request, obj, form, change):
        obj.send_mes = request.title1
        obj.save()


admin.site.register(gjz, gjzAdmin)

报错:'WSGIRequest' object has no attribute 'title1'