forms.py

from flask_wtf import FlaskForm
from wtforms import StringField, PasswordField, SubmitField, DateField
from wtforms.validators import DataRequired, Length, EqualTo, ValidationError
from models import User


class RegistrationForm(FlaskForm):
    username = StringField('Username', validators=[DataRequired(), Length(min=2, max=20)])
    phone_number = StringField('Ihre Handynummer', validators=[DataRequired(), Length(min=10, max=20)])
    password = PasswordField('Password', validators=[DataRequired()])
    confirm_password = PasswordField('Confirm Password', validators=[DataRequired(), EqualTo('password')])
    name = StringField('Name', validators=[DataRequired()])
    dob = DateField('Date of Birth', format='%Y-%m-%d', validators=[DataRequired()])
    address = StringField('Address', validators=[DataRequired()])
    submit = SubmitField('Sign Up')

    def validate_phone_number(self, phone_number):
        user = User.query.filter_by(phone_number=phone_number.data).first()
        if user:
            raise ValidationError('That Ihre Handynummer is already in use. Please choose a different one.')

class LoginForm(FlaskForm):
    username_or_phone = StringField('Username or Ihre Handynummer', validators=[DataRequired()])
    password = PasswordField('Password', validators=[DataRequired()])
    submit = SubmitField('Login')

class CommentForm(FlaskForm):
    text = StringField('Comment', validators=[DataRequired(), Length(max=300)])
    submit = SubmitField('Post Comment')