shell
pip install WTForms
python
from flask_wtf import FlaskForm
from wtforms import StringField, PasswordField, SubmitField
from wtforms.validators import DataRequired, Length, EqualTo
python
class RegistrationForm(FlaskForm):
username = StringField('Username', validators=[DataRequired(), Length(min=3, max=20)])
password = PasswordField('Password', validators=[DataRequired()])
confirm_password = PasswordField('Confirm Password', validators=[DataRequired(), EqualTo('password')])
submit = SubmitField('Create Account')
python
@app.route('/register', methods=['GET', 'POST'])
def register():
form = RegistrationForm()
if form.validate_on_submit():
return redirect(url_for('login'))
return render_template('register.html', form=form)
html
<form method="POST" action="{{ url_for('register') }}">
{{ form.hidden_tag() }}
<div class="form-group">
{{ form.username.label }}
{{ form.username(class="form-control") }}
{% for error in form.username.errors %}
<span class="text-danger">{{ error }}</span>
{% endfor %}
</div>
<button type="submit" class="btn btn-primary">Register</button>
</form>
