Add (partially-) working categoryManager.

- Added Body-Parser.

src/routes/frontend/categoryManager.ts

@@ -2,7 +2,10 @@ import express, { Request, Response } from 'express';
 import { prisma, __path } from '../../index.js';
 
 export default (req: Request, res: Response) => {
-	prisma.category
+	// If method is get, render the page
+	if (req.method === 'GET') {
+		// Render the page
+		prisma.category
 		.findMany({})
 		.then((items) => {
 			// Count amount of total items
@@ -12,4 +15,28 @@ export default (req: Request, res: Response) => {
 			console.error(err);
 			res.status(500).render(__path + '/src/frontend/errors/dbError.eta.html', { error: err });
 		});
+	} else {
+		console.log(req.body);
+		// Check if required fields are filled in
+		if (!req.body.name || !req.body.description) {
+			res.status(400).render(__path + '/src/frontend/errors/400.eta.html');
+			return;
+		}
+		// Save data to category table
+		prisma.category.create({
+			data: {
+				name: req.body.name,
+				description: req.body.description,
+			},
+		})
+		.then(() => {
+			res.redirect('/allCategories');
+		})
+		.catch((err) => {
+			// TODO Catch if is a duplicate error and show a message to the user
+			// TODO Fix this as it throws an error on the error page
+			res.status(500).render(__path + '/src/frontend/errors/dbError.eta.html', { error: err });
+		});
+	}
+	
 };