def category_add():
"""Register new category"""
if request.method == "POST":
# Define variables
name = request.form.get('name')
slug = request.form.get('slug')
if slug == "":
slug = slugify(name)
description = request.form.get('description')
category_exists = Category.get_item_by_slug(slug) is not None
if not category_exists:
# Add new item to database
item = Category.add(name, slug, description)
# Redirect to add category page
return redirect(url_for("category_add"))
else:
flash('Category already exists.')
# Render category-add.html and serve page
return render_template("category/category-add.html",
categories=Category.get_items())
