Flask-WTForms 为渲染模板设置默认值，但在验证时忽略

Question

我有一个表单类，我设置了默认值（用户当前信息），以便它预先填充表单。但是，这会导致验证问题，因为在 Required() 的情况下，它接受默认值作为输入。但是， InputRequired() 似乎解决了这个问题，但它没有正确验证 Email()。它似乎接受任何输入...

如何使用用户当前数据预先填充表单，但只提交当前值进行验证？

#My Form Class
class UserInfoForm(Form):
    id = HiddenField('Employee ID')
    fullName = TextField('Full Name', validators=[InputRequired()])
    position = SelectField('Employee Position', coerce=int)
    email = TextField('Email Address', validators=[InputRequired(), Email()])
    password = PasswordField(
        'New Password',
        validators=[EqualTo('confirm', message='Passwords must match.')])
    confirm = PasswordField('Repeat Password')

#My View
form = UserInfoForm()
form.position.choices = [(p.id, p.title) for p in EmpPosition.query.order_by('id')]
form.position.default = current_user.position.id
form.fullName.default = current_user.fullName
form.email.default = current_user.email
form.process()
if form.validate_on_submit():
    #Submit to DB
return render_template('profile.html', data=data, form=form)

Answer 1

form = UserInfoForm()

if form.validate_on_submit():
    current_user.fullName = form.fullname.data
    current_user.position = form.position.data
    current_user.email = form.email.data
    current_user.password = form.password.data
    ... your db stuff here ...
    ... and whatever else you want to do afterwards ...

form.fullname.data = current_user.fullName
form.position.data = current_user.position
form.email.data = current_user.email
form.password.data = current_user.position

return render_template('profile.html', data=data, form=form)

唯一的另一件事是您需要向表单提交字段。

参考：Miguel Grinberg 的 Flask Web Development