from ajax_validation.views import validate_form
from ajax_validation.utils import render_json_response
...
class TimelineForm(forms.ModelForm):
    class Meta:
        model = Book
def add_book(request):
    #创建表单并进行校验。返回表单以及校验结果。
    form, validate = validate_form(request, form_class=BookForm)
    if validate['valid']:#如果校验成功，执行保持操作
        book = form.save()
    return render_json_response(validate)//返回JSON