Refactor route ID handling; update inventory_item, user, and worklog_entry routes to accept non-integer IDs and improve error handling

routes.py

@@ -239,8 +239,13 @@ def inventory_index():
         endpoint='inventory_index'
     )
 
-@main.route("/inventory_item/<int:id>", methods=['GET', 'POST'])
+@main.route("/inventory_item/<id>", methods=['GET', 'POST'])
 def inventory_item(id):
+    try:
+        id = int(id)
+    except ValueError:
+        return render_template('error.html', title="Bad ID", message="ID must be an integer", endpoint='inventory_item', endpoint_args={'id': -1})
+
     inventory_query = db.session.query(Inventory)
     item = eager_load_inventory_relationships(inventory_query).filter(Inventory.id == id).first()
     brands = db.session.query(Brand).all()
@@ -284,8 +289,13 @@ def list_users():
         endpoint='list_users'
     )
 
-@main.route("/user/<int:id>")
+@main.route("/user/<id>")
 def user(id):
+    try:
+        id = int(id)
+    except ValueError:
+        return render_template('error.html', title='Bad ID', message='ID must be an integer.', endpoint='user', endpoint_args={'id': -1})
+
     users_query = db.session.query(User).order_by(User.first_name, User.last_name)
     users = eager_load_user_relationships(users_query).all()
     user = next((u for u in users if u.id == id), None)
@@ -343,8 +353,13 @@ def list_worklog(page=1):
         endpoint='list_worklog'
     )
 
-@main.route("/worklog/<int:id>")
+@main.route("/worklog/<id>")
 def worklog_entry(id):
+    try:
+        id = int(id)
+    except ValueError:
+        return render_template('error.html', title='Bad ID', message='ID must be an integer.', endpoint='worklog_entry', endpoint_args={'id': -1})
+
     log = eager_load_worklog_relationships(db.session.query(WorkLog)).filter(WorkLog.id == id).first()
     user_query = db.session.query(User)
     users = eager_load_user_relationships(user_query).all()