feat: deleting article

README.md

@@ -0,0 +1,8 @@
+# node-docker-example
+
+This app showcases a website built with NodeJS. The site has a set of
+articles, each article has a separate page, all data about the article
+is stored in the PostgreSQL database. Docker is used to deploy the
+application.
+
+## How to deploy

controllers/ArticleController.js

@@ -40,8 +40,7 @@ class ArticleController {
       /**
        * Validate url `id` param
        */
-      const id = req.params.id;
-      if (!/^\d+$/.test(id)) {
+      if (!req.params || !/^\d+$/.test(req.params.id)) {
         res.render(
           './views/404.hbs',
           { title: '404 | Article not found.' },
@@ -50,7 +49,7 @@ class ArticleController {
         return;
       }
 
-      const article = await ArticleModel.getById(id);
+      const article = await ArticleModel.getById(req.params.id);
 
       /**
        * Not found
@@ -94,6 +93,29 @@ class ArticleController {
       res.serverError(error);
     }
   }
+
+  /**
+   * Delete article by `id`
+   *
+   * @param {http.ClientRequest} req
+   * @param {Response} res
+   */
+  static async delete(req, res) {
+    try {
+      /**
+       * Validate url `id` param
+       */
+      if (!req.params || !/^\d+$/.test(req.params.id)) {
+        res.render('./views/403.hbs', { title: '403 | Bad request.' }, 403);
+        return;
+      }
+
+      await ArticleModel.delete(req.params.id);
+      res.redirect(`/`);
+    } catch (error) {
+      res.serverError(error);
+    }
+  }
 }
 
 export default ArticleController;

models/ArticleModel.js

@@ -14,6 +14,7 @@ import db from '#app/db';
 class ArticleModel {
   /**
    * Get list of articles
+   *
    * @returns {Promise<Array<Article>>} List of articles
    */
   static async getAll() {
@@ -73,6 +74,19 @@ class ArticleModel {
       throw error;
     }
   }
+
+  /**
+   * Delete article by `id`
+   *
+   * @param {string} id
+   */
+  static async delete(id) {
+    try {
+      await db.client.query(`DELETE FROM "articles" WHERE id = $1`, [id]);
+    } catch (error) {
+      throw error;
+    }
+  }
 }
 
 export default ArticleModel;

preloads/routes.js

@@ -17,4 +17,5 @@ import WaitMiddleware from '#middlewares/WaitMiddleware';
 router.get('/', ArticleController.index).middleware([WaitMiddleware.handle]);
 router.get('/articles/:id', ArticleController.show);
 router.post('/articles', ArticleController.create);
+router.post('/articles/:id', ArticleController.delete);
 router.get('/editor/create', EditorController.create);

public/css/style.css

@@ -55,6 +55,16 @@ textarea {
   display: block;
 }
 
+.app article .article-heading {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+}
+
+.app article .article-heading button {
+  padding: 5px;
+}
+
 .app .app-footer {
   text-align: center;
 }

router.js

@@ -179,6 +179,16 @@ class Router {
   post(url, handler) {
     return this.define('POST', url, handler);
   }
+
+  /**
+   * DELETE Method route
+   *
+   * @param {*} url
+   * @param {*} handler
+   */
+  delete(url, handler) {
+    return this.define('DELETE', url, handler);
+  }
 }
 
 export default new Router();

views/403.hbs

@@ -0,0 +1,7 @@
+<html lang='en'>
+  {{> head }}
+  <body>
+    <h1>{{ title }}</h1>
+    <a href="/">&lt; return to home</a>
+  </body>
+</html>

views/index.hbs

@@ -23,13 +23,22 @@
         {{/unless}}
         {{#each articles}}
           <article>
+            <div class="article-heading">
               <h2>
                 <a href='articles/{{ this.id }}'>
                   {{ this.title }}
                 </a>
               </h2>
+              <form method='post' action='/articles/{{ this.id }}'>
+                <button  type="submit">&#x2715;</button>
+             </form>
+            </div>
+            <div class="article-description">
               <p>{{ this.description }}</p>
+            </div>
+            <div class="article-time">
               <time>{{ this.created_at }}</time>
+            </div>
           </article>
           <hr />
         {{/each}}