Flask-WTF OR 验证

Question

我正在尝试使用 0.14 Flask-wtf 制作电子邮件联系表。
我想在我的发件人中包含一个 "either one" 验证，用户在提交时必须至少输入电子邮件或 phone 号码。
这个 post here : 正是我正在寻找的，但是，除了默认的 InputReuired 验证之外，它不起作用。有没有办法实现这种类型的验证？谢谢

app.py

@app.route('/contact', methods=['GET', 'POST'])
def contact():

form = ContactForm()

if request.method == 'POST':
    if form.validate_on_submit() == False:
        message = 'All fields are required.'
        flash(message)
        return render_template('contact.html', form=form)
    else:
        return 'Form posted.'

elif request.method == 'GET':
    return render_template('contact.html', form=form)

Forms.py

class ContactForm(FlaskForm):
  name = StringField('Name',
                      validators=[InputRequired(message='Please enter your name.')])
  email = StringField('Your Email', 
                       validators=[Optional(), Email(message='Please check the format of your email.')])
  phone = StringField('Your Phone Number', validators=[Optional()])
  word = TextAreaField('Your messages', 
                        validators=[InputRequired(message='Please say something.')])
  submit = SubmitField('Send')

Answer 1

不在 Forms.py 而在 app.py 内执行此操作可能更容易。

例如，

def is_valid(phone):
    try: 
        int(phone)
        return True if len(phone) > 10 else False
    except ValueError:
        return False

@app.route('/contact', methods=['GET', 'POST'])
def contact():

form = ContactForm()

if request.method == 'POST':
    if form.validate_on_submit() == False:
        message = 'All fields are required.'
        flash(message)
        return render_template('contact.html', form=form)
    else:
        if not (form.email.data or form.phone.data):
            form.email.errors.append("Email or phone required")
            return render_template('contact.html', form=form)
        else if not is_valid(form.phone.data):
            form.phone.errors.append("Invalid Phone number")
            return render_template('contact.html', form=form)
        return 'Form posted.'

elif request.method == 'GET':
    return render_template('contact.html', form=form)

Flask-WTF OR 验证

Flask-WTF OR validation

python

validation

flask

flask-wtforms