默认值没有显示在html页面(Flask表单)中吗？

Question

我正在从数据库get_row = PolicyCheck.query.filter_by(id=1).first()中获取数据。

EditPasswordPolicyForm类(FlaskForm)：

greater = IntegerField('greater')
lesser = IntegerField('lesser')
special = BooleanField('special')
upper = BooleanField('upper')
lower = BooleanField('lower')
digit = BooleanField('digit')
update = SubmitField('update')

def __init__(self, *args, **kwargs):
    super(EditPasswordPolicyForm, self).__init__(*args, **kwargs)
    get_row = PolicyCheck.query.filter_by(id=1).first()
    self.greater.default = get_row.greaterthan
    self.lesser.default = get_row.lessthan
    self.special.default = get_row.specialChar
    self.upper.default = get_row.isupper
    self.lower.default = get_row.islower
    self.digit.default = get_row.isdigit

无论我在表单中填写并提交什么值，这些值都会更新，但默认情况下所有表单域都是空的。我希望在表单域中显示数据库中最新更新的数据作为默认值。当我填写表单并提交时，它应该由最新更新的值作为默认值进行刷新，并且不应该为空。

Answer 1

def __init__(self, *args, **kwargs):
    super(EditPasswordPolicyForm, self).__init__(*args, **kwargs)
    get_row = PolicyCheck.query.filter_by(id=1).first()
    self.greater.data = get_row.greaterthan
    self.lesser.data = get_row.lessthan
    self.special.data = get_row.specialChar
    self.upper.data = get_row.isupper
    self.lower.data = get_row.islower
    self.digit.data = get_row.isdigit

也许它会起作用。