getDeveloper(id): Promise<Dev> {
  return this.database.executeSql('SELECT * FROM developer WHERE id = ?', [id]).then(data => {
    let skills = [];
    if (data.rows.item[0].skills !== '') {
      skills = JSON.parse(data.rows.item[0].skills);
    }

    return {
      id: data.rows.item(0).is,
      name: data.rows.item(0).name,
      skills,
      img: data.rows.item[0].img
    };
  });
}