boilerplate.py

@app.route('/create_user', methods=['GET', 'POST'])
def create_user():
	form = UserForm(request.form)
	if request.method == 'POST' and form.validate():
		#to add: make sure stripe was a success
		if User.query.filter_by(email = form.email).first() == None:
			user = user_datastore.create_user(email=form.email.data,
						password=encrypt_password(form.password.data),
						active=True,
						confirmed_at=datetime.date.today())
			user_datastore.add_role_to_user(user, 'can_upload_media')
			user_datastore.add_role_to_user(user, 'can_review')
			db.session.add(user)
			db.session.commit()
		else:
			return render_template('userExists.html')
	else:
		response = render_template('create_user.html', form=form)
		return render_template('create_user.html', form=form)

create_user.html

{% extends 'macros.html' %}
<div class="create_user">
	<h3>Hi and welcome to Roverpass! We offer a 40% discount on over 2000 RV campsites all over the nation! Sign up here to receive discounts, leave reviews, and upload images!</h3>
	<form method="POST" action="/">
    {{ form.hidden_tag() }}
    {{ render_field(form.email) }}
    {{ render_field(form.email_again) }}
    {{ render_field(form.password) }}
    {{ render_field(form.password_again) }}
    <input type="submit" value="Go">
	</form>
</div>