Add file containing studentController class with two static methods

Author: samuelselasi

0x05-Node_JS_basic/full_server/controllers/StudentsController.js

@@ -0,0 +1,34 @@
+// file containing studentController class with 2 static methods
+const readDatabase = require('../utils');
+
+class StudentsController {
+  static getAllStudents(request, response) {
+    readDatabase(process.argv[2].toString()).then((students) => {
+      const output = [];
+      output.push('This is the list of our students');
+      const keys = Object.keys(students);
+      keys.sort();
+      for (let i = 0; i < keys.length; i += 1) {
+        output.push(`Number of students in ${keys[i]}: ${students[keys[i]].length}. List: ${students[keys[i]].join(', ')}`);
+      }
+      response.status(200).send(output.join('\n'));
+    }).catch(() => {
+      response.status(500).send('Cannot load the database');
+    });
+  }
+
+  static getAllStudentsByMajor(request, response) {
+    const field = request.params.major;
+    readDatabase(process.argv[2].toString()).then((students) => {
+      if (!(field in students)) {
+        response.status(500).send('Major parameter must be CS or SWE');
+      } else {
+        response.status(200).send(`List: ${students[field].join(', ')}`);
+      }
+    }).catch(() => {
+      response.status(500).send('Cannot load the database');
+    });
+  }
+}
+
+module.exports = StudentsController;