from flask_wtf          import FlaskForm
from wtforms            import StringField
from wtforms.validators import DataRequired, Email, Length, ValidationError

class RegisterForm(FlaskForm):
    email    = StringField('Nom', validators=[DataRequired(), Email()])
    password = PasswordField('Mot de passe', validators=[DataRequired(), Length(min=4, max=12)])
    submit   = SubmitField("S'inscrire")
    
    # validation custom
    def validate_email(self, email):
        if email.data == "root@domain.com":
            raise ValidationError("Cet email est déjà enregistré")