Delete course for teacher add.

Author: emreylmaz

app.js

@@ -3,6 +3,7 @@ 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');
 const categoryRoute = require('./routes/categoryRoute');
@@ -44,6 +45,9 @@ app.use((req, res, next) => {
   res.locals.flashMessages= req.flash();
   next();
 })
+app.use(methodOverride('_method',
+  {methods: ['POST', 'GET'],
+  }));
 
 const port = process.env.PORT || 3000;
 

controllers/courseController.js

@@ -111,4 +111,18 @@ exports.releaseCourse = async (req, res) => {
       error,
     });
   }
+};
+
+exports.deleteCourse = async (req, res) => {
+  try {
+    const course = await Course.findOneAndRemove({slug: req.params.slug});
+    req.flash("error", `${course.name} has been removed successfully`);
+    res.status(200).redirect('/users/dashboard');
+
+  } catch (error) {
+    res.status(400).json({
+      status: 'fail',
+      error,
+    });
+  }
 };

models/User.js

@@ -30,7 +30,7 @@ const UserSchema = new Schema({
 
 UserSchema.pre('save', function(next) {
   const user = this;
-  if (!this.isModified('password')) return next();
+  if (!this.isModified('password')) return next(); // if password is not modified, skip the function
   bcrypt.hash(user.password, 10,(error, hash) => {
     user.password = hash;
     next();

package-lock.json

@@ -21,6 +21,7 @@
     "express": "^4.17.3",
     "express-session": "^1.17.2",
     "express-validator": "^6.14.0",
+    "method-override": "^3.0.0",
     "mongoose": "^5.13.8",
     "nodemailer": "^6.7.3",
     "slugify": "^1.6.5"

package.json

@@ -7,6 +7,7 @@ const router = express.Router();
 router.route('/').post(roleMiddleware(["teacher", "admin"]), courseController.createCourse); // http://localhost:3000/courses
 router.route('/').get(courseController.getAllCourses);
 router.route('/:slug').get(courseController.getCourse);
+router.route('/:slug').delete(courseController.deleteCourse);
 router.route('/enroll').post(courseController.enrollCourse);
 router.route('/release').post(courseController.releaseCourse);
 

routes/courseRoute.js

@@ -31,7 +31,7 @@
 								</div>
 								<div class="course-br">
 									<div class="course-title">
-										<h2><a href="/courses/<%= user.courses[i].slug %>" title=""><%= user.courses[i].name %> </a></h2>
+										<h2><a href="course-single.html" title=""><%= user.courses[i].name %> </a></h2>
 									</div>
 									<div class="course-desc">
 										<p><%= user.courses[i].description %> </p>
@@ -59,6 +59,19 @@
 		<div id="overviews" class="section wb">
 			<div class="container">
 				<div class="row">
+					<% if (flashMessages) { %>
+						<% if (flashMessages.success) { %>
+							<div class="alert alert-success">
+								<%= flashMessages.success %>
+							</div>
+
+						<% } else if (flashMessages.error) { %>
+							<div class="alert alert-danger">
+								<%= flashMessages.error %>
+							</div>
+						<% } %>
+
+					<% } %>
 					<!-- Modal Button -->
 					<div class="col-lg-12 text-center ">
 						<button class="btn btn-lg btn-warning rounded-0 text-white" href="#"
@@ -87,6 +100,14 @@
 									<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')"
+																		 class="btn btn-danger rounded-0 text-white"><span>DELETE</span></a></li>
+										</ul>
+									</div>
 								</div>
 							</div>
 						</div><!-- end col -->
@@ -149,4 +170,4 @@
 	<% } %>
 <% } %>
 
-<%- include('partials/_footer'); %>
+<%- include('partials/_footer'); %>