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Python Build a Social Network with Flask Takin' Names Macros

Posted by Abdirahman Mohamed
Abdirahman Mohamed
84 Points

Validation

Validation works; however, messages don't show. By messages I mean "This field is required invalid email"... etc. Here is my forms code. Btw im doing it in Pycharm :)

from flask_wtf import Form
from wtforms import StringField,PasswordField
from wtforms.validators import DataRequired,Regexp,ValidationError, Email,Length,EqualTo

from models import User


def name_exists(form,field):
    if User.select().where(User.username==field.data).exists():
        raise ValidationError('User with that name already exists.')


def email_exists(form,field):
    if User.select().where(User.email==field.data).exists():
        raise ValidationError('User with that email already exists.')

class RegisterForm(Form):
    username = StringField(
        'Username',
        validators=[
            DataRequired(),
            Regexp(
                r'^[a-zA-Z0-9_]+$',
                message= ("Username should be one word, "
                          "numbers, and underscores only.")
            ),
            name_exists
        ])
    email= StringField(
        'Email',
        validators=[
            DataRequired(),
            Email(),
            email_exists

        ])
    password = PasswordField(
        'Password',
        validators=[
            DataRequired(),
            Length(min=6),
            EqualTo('password2',message="Passwords must match")

        ])
    password2 = PasswordField(
        'Confirm Password',
        validators=[DataRequired()]
    )

[MOD: added ```python formatting -cf]

2 Answers

David Smith
David Smith
10,577 Points
David Smith
David Smith
10,577 Points

bump,

I have the same problem, the only validator that seems to work is the DataRequired.