question-list.class.js

class QuestionList extends List {

    constructor(items) {
        super(Question, items);
    }

    readAllQuestions(callback) {
        this.db.readAllQuestions((data) => {
            this.push.apply(this, data);
            //console.log(data);
            callback();
        });
    }

    static get sqlQueries() {
        return {
            readAllQuestions: `
        SELECT questionId, text FROM question
      `
        }
    }

}