Implemented Parent.getChildren

lib/Parent.js

@@ -8,8 +8,26 @@ class Parent extends User {
 		super(conn, id, 'parent');
 	}
 
-	get children() {
+	async getChildren(fetchObjects = true) {
+		const sql = `
+			select
+				studentId
+			from
+				studentParentLink
+			where
+				parentId = ?;
+		`;
 
+		const children = await this._conn.runQuery(sql, [ this.id ]);
+
+		const childrenIds = children.map(c => c.studentId);
+
+		if (!fetchObjects)
+			return childrenIds;
+
+		return await Promise.all(childrenIds.map(id => {
+			return new User(this._conn, id, 'student');
+		}));
 	}
 
 	static async createParent(conn, fname, oname, lname, email, password) {