refactor with blueprints

app/auth/register.py

@@ -0,0 +1,28 @@
+#!/usr/bin/env python3
+
+from flask import Blueprint, redirect, url_for, render_template, flash
+from flask_login import current_user
+from app.forms import RegistrationForm
+from app.models import Contributor
+from .. import db
+
+reg = Blueprint(
+    "reg", __name__, template_folder="templates"
+)
+
+
+@reg.route("/register", methods=["GET", "POST"])
+def register():
+    if current_user.is_authenticated:
+        return redirect(url_for('proute.index'))
+    form = RegistrationForm()
+    if form.validate_on_submit():
+        db.engine.execute("SELECT setval('contributor_id_seq', (SELECT MAX(id) FROM contributor))")
+        db.session.commit()
+        contributor = Contributor(name=form.username.data, num_photos=0, email=form.email.data)
+        contributor.set_password(form.password.data)
+        db.session.add(contributor)
+        db.session.commit()
+        flash("Congratulations, you are now a registered user!")
+        return redirect(url_for('auths.login'))
+    return render_template('register.html', title='Register', form=form)