Need some help with SQLiteCopy

@samaalir1 wrote:

Hello all, first i'm a newbie, I'm having some issues in copying SQLite database ( or maybe read it ), i've already tried a lots of codes but without any result, all what i want is to do a login page that verify user/password, at first i want to verify the connection, i used some alerts to ensure that, but no one of them show, please i need your help,
sometime i got an error that says " TypeError: Cannot read property 'transaction' of null "
i'd installed :
* sqlite
* cordova-plugin-dbcopy
* and ng-cordova.min.js

i've tried many methodes that i found in the Internet but no one works for me
(sorry for my English guys)

app.js
`

db = null;
angular.module('starter', ['ionic', 'ngCordova', 'starter.controllers', 'starter.services'])

.run(function ($ionicPlatform, $cordovaSQLite) {
$ionicPlatform.ready(function () {
if (window.cordova && window.cordova.plugins.Keyboard) {
cordova.plugins.Keyboard.hideKeyboardAccessoryBar(true);
}
if (window.StatusBar) {
StatusBar.styleDefault();
}

    /* DATABASE INTEGRATION */

    if (window.sqlitePlugin !== undefined) {

        // copy the database
        window.plugins.sqlDB.copy("utilisateurs.db", 1,

        function () {
            // copy success, if not yet been copied
            // set "db" as the database
            db = window.sqlitePlugin.openDatabase({ name: "utilisateurs.db", location: 2, createFromLocation: 1 });
            alert("SUCCES");
        }, function () {
            // copy error, if it has already been copied
            // set "db" as the database
            db = window.openDatabase("utilisateurs.db", "1.0", "Database", 200000);
            alert("ERROR");
        });
    } else {
        alert("not loaded");
    }
});

})`

controllers.js
`.controller('ngController', function ($scope) {

$scope.selectAll = function () {
    // db is your database defined before
    db.transaction(function (tx) {
        // running a sql querie
        tx.executeSql("SELECT id, utilisateur FROM utilisateurs", [], function (tx, res) {
            var len = res.rows.length;
            for (var i = 0; i < len; i++) { // loop as many times as there are row results
                alert(res.rows.item(i).id + ' ' + res.rows.item(i).utilisateur); // showing the results
            }
        }, function (e) {
            alert("ERROR: " + e.message);
        });
    });
};

})
`

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