AdvLabDB/advlabdb/forms.py

from flask_wtf import FlaskForm
from wtforms import StringField, PasswordField, SubmitField, BooleanField
from wtforms.validators import DataRequired, Email, ValidationError
from advlabdb.models import User


class RegistrationForm(FlaskForm):
    email = StringField("Email",
                        validators=[DataRequired(), Email()])
    assistant = BooleanField("Assistant", default=True)
    admin = BooleanField("Admin", default=False)
    submit = SubmitField("Register")

    def validate_email(form, field):
        user = User.query.filter_by(email=field.data.lower()).first()
        if user:
            raise ValidationError("A user with this email address is already registered!")


class LoginForm(FlaskForm):
    email = StringField("Email",
                        validators=[DataRequired(), Email()])
    password = PasswordField("Password", validators=[DataRequired()])
    submit = SubmitField("Login")