provider.js

  getAluno(queryText=''){
    queryText = queryText.toLowerCase().replace(/,|\.|-/g,' ').trim();
    queryText = '%'+queryText+'%'

    function asPlainObjectCollection(data) {

    	let array = []
	    let rows = !!data.res.rows.length ? data.res.rows : array

	    for (let i = 0; i < data.res.rows.length; i++) {
			array.push(data.res.rows.item(i))
		}

	    return array;
  	}
    
    if (queryText === ''){
    	return this.storage.query('SELECT * FROM alunos').then(asPlainObjectCollection);
    } else {
    	return this.storage.query('SELECT * FROM alunos WHERE firstName LIKE ? OR lastName LIKE ?', [queryText, queryText]).then(asPlainObjectCollection);
    }
    
  };