我正在尝试筛选空字段并在forms.py中验证它,但出现以下错误:
不能指定“teacherAttentication.teacher”不允许空值。
但我正在为教师领域做以下表格的验证。它应该生成“请选择教师”验证警告。但这不是真的。
它应该为teacher验证空值,如果我没有从teacher字段中选择teacher,则返回到表单并显示验证警告。
class TeacherAttendanceForm(forms.ModelForm):
class Meta:
model = TeacherAttendance
fields = ('time', 'attendance', 'teacher','dailynote','writer',)
exclude = ['uuid', 'notedate',]
widgets = {
'attendance': forms.RadioSelect(renderer=HorizontalRadioRenderer),
'dailynote': forms.Textarea(attrs={'rows': 10}),
'writer': forms.Textarea(attrs={'rows': 1}),
'uuid': forms.HiddenInput(),
'semester': forms.HiddenInput(),
}
def clean(self):
if str(self.cleaned_data['time']) == "-----------":
raise forms.ValidationError('Please choose time.')
if self.cleaned_data['dailynote'] == "":
raise forms.ValidationError('Please enter note.')
if not self.cleaned_data['teacher']:
raise forms.ValidationError('Please choose teacher .')
我的模型在下面,教师字段是一个显示所有教师的下拉字段。
class TeacherAttendance(BaseModel):
teacher = models.ForeignKey(Staff, blank=True, verbose_name=_("Choose Teacher"))
attendance = models.CharField(choices=TEACHER_ATTENDANCE, default="YOK", max_length=20, verbose_name=_("Attendance"))
time = models.CharField(choices=TIME, default="-------------", max_length=20, verbose_name=_("Time"))
dailynote = models.TextField(null=True, blank=True, verbose_name=_("Add Note"))
notedate = models.DateField(auto_now_add=True, db_index=True, verbose_name=_("Date"))
writer = models.TextField(null=True, blank=True, verbose_name=_("Writer"))
class Meta:
unique_together = ("teacher", "attendance", "notedate")
index_together = [["teacher", "notedate", ], ]
def __unicode__(self):
return "%s / %s / %d " % (self.teacher, self.notedate, self.attendance)