Simple QML storage wrapper for settings

storage.js

.pragma library


function Settings(applicationName, applicationVersion) {
    this.db = openDatabaseSync(applicationName, applicationVersion)
    this.db.transaction(function(tx) {
        tx.executeSql('CREATE TABLE IF NOT EXISTS settings(name TEXT UNIQUE, value TEXT)')
    })
}


Settings.prototype.set = function(name, value) {
    this.db.transaction(function(tx) {
        var rs = tx.executeSql('INSERT OR REPLACE INTO settings VALUES (?,?);', [name,value])
        if (rs.rowsAffected === 0) {
            throw { message: "should not happen" }
        }
    })
    return value
}


Settings.prototype.get = function(name) {
    var res
    this.db.transaction(function(tx) {
    var rs = tx.executeSql('SELECT value FROM settings WHERE name=?;', [name])
        if (rs.rows.length > 0) {
            res = rs.rows.item(0).value
        }
    })
    return res
}