From f63c7571a97ebf6a24f3c6a63908dad566b8d978 Mon Sep 17 00:00:00 2001
From: Luigi De Russis <luigidr@gmail.com>
Date: Thu, 27 May 2021 13:39:39 +0200
Subject: [PATCH] remove old dao file

---
 dao.js | 108 ---------------------------------------------------------
 1 file changed, 108 deletions(-)
 delete mode 100644 dao.js

diff --git a/dao.js b/dao.js
deleted file mode 100644
index 62f8135..0000000
--- a/dao.js
+++ /dev/null
@@ -1,108 +0,0 @@
-'use strict';
-/* Data Access Object (DAO) module for accessing courses and exams */
-
-const sqlite = require('sqlite3');
-
-// open the database
-const db = new sqlite.Database('exams.sqlite', (err) => {
-  if(err) throw err;
-});
-
-// get all courses
-exports.listCourses = () => {
-  return new Promise((resolve, reject) => {
-    const sql = 'SELECT * FROM course';
-    db.all(sql, [], (err, rows) => {
-      if (err) {
-        reject(err);
-        return;
-      }
-      const courses = rows.map((e) => ({ code: e.code, name: e.name, CFU: e.CFU }));
-      resolve(courses);
-    });
-  });
-};
-
-// get the course identified by {code}
-exports.getCourse = (code) => {
-  return new Promise((resolve, reject) => {
-    const sql = 'SELECT * FROM course WHERE code=?';
-    db.get(sql, [code], (err, row) => {
-      if (err) {
-        reject(err);
-        return;
-      }
-      if (row == undefined) {
-        resolve({error: 'Course not found.'});
-      } else {
-        const course = { code: row.code, name: row.name, CFU: row.CFU };
-        resolve(course);
-      }
-    });
-  });
-};
-
-// get all exams
-exports.listExams = () => {
-  return new Promise((resolve, reject) => {
-    const sql = 'SELECT coursecode, score, date FROM exam';
-
-    db.all(sql, (err, rows) => {
-      if (err) {
-        reject(err);
-        return;
-      }
-
-      const exams = rows.map((e) => (
-        {
-          code: e.coursecode,
-          score: e.score,
-          date: e.date,
-        }));
-
-      resolve(exams);
-    });
-  });
-};
-
-// add a new exam
-exports.createExam = (exam) => {
-  return new Promise((resolve, reject) => {
-    const sql = 'INSERT INTO exam(coursecode, date, score) VALUES(?, DATE(?), ?)';
-    db.run(sql, [exam.code, exam.date, exam.score], function (err) {
-      if (err) {
-        reject(err);
-        return;
-      }
-      resolve(this.lastID);
-    });
-  });
-};
-
-// update an existing exam
-exports.updateExam = (exam) => {
-  return new Promise((resolve, reject) => {
-    const sql = 'UPDATE exam SET date=DATE(?), score=? WHERE coursecode = ?';
-    db.run(sql, [exam.date, exam.score, exam.code], function (err) {
-      if (err) {
-        reject(err);
-        return;
-      }
-      resolve(this.lastID);
-    });
-  });
-};
-
-// delete an existing exam
-exports.deleteExam = (course_code) => {
-  return new Promise((resolve, reject) => {
-    const sql = 'DELETE FROM exam WHERE coursecode = ?';
-    db.run(sql, [course_code], (err) => {
-      if (err) {
-        reject(err);
-        return;
-      } else
-        resolve(null);
-    });
-  });
-}
\ No newline at end of file