def add():
context = {}
has_category = False
if request.method == "POST":
# convert name to lower case and remove leading
# and trailing spaces
name = request.form["name"].lower().strip()
# case 1: do not allow adding empty category name
if is_empty_str(name):
flash(notify_warning("Category name cannot be empty"))
return redirect(url_for("category.add"))
# case 2: do not allow category name uncategorised
# not sure if this is needed since if we add this
# during initialization then this check will be covered
# by case 3
if name == "uncategorised" or name == "uncategorized":
flash(notify_warning("Category cannot be named as uncategorised"))
return redirect(url_for("category.add"))
has_category = Category.category_exists(name)
# case 3: do not allow adding existing category name
if has_category:
flash(notify_warning(f'Category "{name}" already exists'))
return render_template("category/add.html", **context)
# case 4: sucessfully add the category
category = Category(name=name)
try:
if "photo" in request.files:
file = request.files["photo"]
filename = unique_sec_filename(file.filename)
file.filename = filename
categoryphotos.save(file)
category.resources.append(
Resource(
type="image",
filename=filename,
category="category_image",
)
)
except flask_uploads.UploadNotAllowed as e:
pass
category.save()
flash(notify_success(f'Category "{name}" added successfully'))
return render_template("category/add.html", **context)
context["has_category"] = str(has_category)
return render_template("category/add.html", **context)
def check(category_name):
has_category = Category.category_exists(category_name)
return jsonify({"exists": has_category})