Courses | Delete Course added

Author: berkayguler7

app.js

@@ -4,6 +4,7 @@ const mongoose = require('mongoose');
 const session = require('express-session');
 const MongoStore = require('connect-mongo');
 const flash = require('connect-flash');
+const methodOverride = require('method-override');
 
 const pageRoute = require('./routes/pageRoute');
 const courseRoute = require('./routes/courseRoute');
@@ -37,6 +38,12 @@ app.use((req, res, next) => {
     res.locals.flashMessages = req.flash();
     next();
 })
+app.use(
+    methodOverride('_method', {
+        methods: ['POST', 'GET'],
+    })
+);
+
 
 // Logger
 app.use((req, res, next) => {

controllers/courseController.js

@@ -107,3 +107,26 @@ exports.releaseCourse = async (req, res) => {
         });
     }
 };
+
+exports.deleteCourse = async (req, res) => {
+    try {
+        const course = await Course.findOneAndRemove({ slug: req.params.slug });
+        if(!course) return res.status(404).json({ status: 'fail', message: 'Course not found.' });
+        if(req.session.userID !== course.creator.toString()) return res.status(401).json({ status: 'fail', message: 'Unauthorized.' });
+        req.flash('success', `${course.name} deleted successfully.`);
+
+        // Very dubious way of removing course from users' courses array
+        const users = await User.find();
+        users.forEach(async (user) => {
+            await user.courses.pull({ _id: course._id });
+            await user.save();
+        });
+
+        res.status(200).redirect('/users/dashboard');
+    } catch (error) {
+        res.status(400).json({
+            status: 'fail',
+            error,
+        });
+    }
+};

package-lock.json

@@ -24,7 +24,8 @@
     "ejs": "^3.1.8",
     "express": "^4.18.1",
     "express-session": "^1.17.3",
-    "express-validator": "^6.14.2",
+    "express-validator": "^6.15.0",
+    "method-override": "^3.0.0",
     "mongoose": "^6.5.4",
     "nodemailer": "^6.7.8",
     "slugify": "^1.6.5"

package.json

@@ -17,4 +17,7 @@ router.route('/enroll')
 router.route('/release')
     .post(courseController.releaseCourse);
 
+router.route('/:slug')
+    .delete(courseController.deleteCourse)
+
 module.exports = router;

routes/courseRoute.js

@@ -22,14 +22,13 @@
 					</div>
 				<% } %>
 
-                <div class="col-lg-12 blog-post-single">					
+                <!--<div class="col-lg-12 blog-post-single">					
 					<div class="blog-author">
 						<div class="author-bio">
 							<h3 class="author_name"><a href="#"><%= user.name %></a></h3>
 						</div>
 					</div>
-					
-                </div><!-- end col -->
+                </div> -->
             </div><!-- end row -->
 			<h2 class="text-center"><b>Courses</b></h2>
 			<div class="row mt-5"> 
@@ -47,6 +46,19 @@
 									<div class="course-desc">
 										<p><%= courses[i].description %></p>
 									</div>
+									<div class="clearfix">
+										<ul style="list-style-type: none;">
+											<li style="float: left;">
+												<button class="btn btn-primary rounded-0 text-white"><span>UPDATE</span></button>
+											</li>
+											<li style="float: right;">
+												<a href="/courses/<%= courses[i].slug %>?_method=DELETE" 
+													onclick="return confirm('Are you sure you want to delete this course?')"
+													class="btn btn-danger rounded-0 text-white"><span>DELETE</span></a>
+											</li>
+										</ul>
+									</div>
+
 								</div>
 							</div>
 						</div><!-- end col -->