Cannot call method 'transaction' of null

Question

Cannot call method 'transaction' of null

lucascardoso opened this issue 9 years ago · comments

Lucas Cardoso de Araujo commented 9 years ago

Hi guys, I'm having a problem when it comes to running a query in the database.

this is the query that is executed:

var query = "SELECT email FROM usuarios WHERE email = ?";
var existe = false;
$cordovaSQLite.execute(db, query, [usuario]).then(function (res) {
if (res.rows.length > 0) {
existe = true;
} else {
console.log("Nenhum resultado encontrado.");
}
}, function (err) {
console.error(err);
});

this is the error I get:
D/SystemWebChromeClient(23723): file:///android_asset/www/lib/ionic/js/ionic.bundle.js: Line 21157 : TypeError: Cannot call method 'transaction' of null
D/SystemWebChromeClient(23723): at Object.execute (file:///android_asset/www/lib/ngCordova/dist/ng-cordova.js:5960:12)
D/SystemWebChromeClient(23723): at findUsuario (file:///android_asset/www/js/servico.js:16:22)
D/SystemWebChromeClient(23723): at efetuarLogin (file:///android_asset/www/js/servico.js:37:13)
D/SystemWebChromeClient(23723): at Scope.$scope.login (file:///android_asset/www/js/controllers/controllers.js:55:47)
D/SystemWebChromeClient(23723): at fn (eval at (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:1:0), :4:206)
D/SystemWebChromeClient(23723): at file:///android_asset/www/lib/ionic/js/ionic.bundle.js:57514:9
D/SystemWebChromeClient(23723): at Scope.$eval (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:24673:28)
D/SystemWebChromeClient(23723): at Scope.$apply (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:24772:23)
D/SystemWebChromeClient(23723): at HTMLButtonElement. (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:57513:13)
D/SystemWebChromeClient(23723): at HTMLButtonElement.eventHandler (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:12098:21)
I/chromium(23723): [INFO:CONSOLE(21157)] "TypeError: Cannot call method 'transaction' of null
I/chromium(23723): at Object.execute (file:///android_asset/www/lib/ngCordova/dist/ng-cordova.js:5960:12)
I/chromium(23723): at findUsuario (file:///android_asset/www/js/servico.js:16:22)
I/chromium(23723): at efetuarLogin (file:///android_asset/www/js/servico.js:37:13)
I/chromium(23723): at Scope.$scope.login (file:///android_asset/www/js/controllers/controllers.js:55:47)
I/chromium(23723): at fn (eval at (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:1:0), :4:206)
I/chromium(23723): at file:///android_asset/www/lib/ionic/js/ionic.bundle.js:57514:9
I/chromium(23723): at Scope.$eval (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:24673:28)
I/chromium(23723): at Scope.$apply (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:24772:23)
I/chromium(23723): at HTMLButtonElement. (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:57513:13)
I/chromium(23723): at HTMLButtonElement.eventHandler (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:12098:21)", source: file:///android_asset/www/lib/ionic/js/ionic.bundle.js (21157)

if anyone can help me right now thanks!

Jônatas Davi Paganini · Answer 1 · Fri Oct 02 2015 22:26:03 GMT+0800 (China Standard Time)

Is missing something like:

 db = $cordovaSQLite.openDB("my.db");
$cordovaSQLite.execute(db,...

Lucas Cardoso de Araujo · Answer 2 · Fri Oct 02 2015 22:39:16 GMT+0800 (China Standard Time)

I'm opening the db:

         if(window.cordova) {
           db = $cordovaSQLite.openDB("appViajantes.db"); //app syntax
         } else {
           db = window.openDatabase("appViajantes.db", "1.0", "App Viajantes", 2 * 1024 * 1024); // ionic     serve syntax
         }

       db.transaction(function (tx) {
         tx.executeSql(sqlEstado, [], success, error);
         tx.executeSql(sqlCidade, [], success, error);
         tx.executeSql(sqlBairro, [], success, error);
         tx.executeSql(sqlLocal, [], success, error);
         tx.executeSql(sqlUsuarios, [], success, error);
       });

       function success (tx, result) {
         console.log("Criou com sucesso");
       };

       function error (tx, error) {
         console.log("ERROR na criação do banco: " + error.message);
         return true;
       };

Anuj Gautam · Answer 3 · Mon Oct 05 2015 04:50:30 GMT+0800 (China Standard Time)

I am also getting the same error as soon as application loads.

Chris Brody · Answer 4 · Thu Oct 08 2015 17:06:18 GMT+0800 (China Standard Time)

Looks like an installation problem.

Lucas Cardoso de Araujo · Answer 5 · Fri Oct 09 2015 22:06:58 GMT+0800 (China Standard Time)

Hello @brodybits, and how could I solve this?

Chris Brody · Answer 6 · Fri Oct 09 2015 22:11:44 GMT+0800 (China Standard Time)

Please start with a fresh, clean project and run a very simple test program. You may have to try one thing at a time to find out what is causing the problem.

Lucas Cardoso de Araujo · Answer 7 · Fri Oct 16 2015 20:23:07 GMT+0800 (China Standard Time)

Hello @brodybits, can solve this error. What was happening to me was a keyboard error before initializing the database so db was nil. I installed the plugin ionic-plugin-keyboard keyboard.

Thank you for your help.

Chris Brody · Answer 8 · Fri Oct 16 2015 20:50:56 GMT+0800 (China Standard Time)

@lucascardoso happy to hear! Can you do us a favor and describe how you the keyboard error happened?

I would like to get this documented somewhere since it may help others. Thanks!

Lucas Cardoso de Araujo · Answer 9 · Fri Oct 16 2015 21:05:55 GMT+0800 (China Standard Time)

The error appeared that every time the application initializing. This was the error:
ionic Uncaught TypeError: Can not read property 'Keyboard' of undefined
I did not think it podesse solve my problem transaction, but after installing the keyboard plugin worked perfectly.

Thank you @brodybits.

Jonah Nisenson · Answer 10 · Thu Dec 24 2015 05:08:58 GMT+0800 (China Standard Time)

I had the same exact problem as @lucascardoso where I was getting the error below (output from Genymotion with the 'adb logcat' command. Tried everything. Most of a day wasted on this. The fix was adding the ionic-plugin-keyboard

I/chromium( 1681): [INFO:CONSOLE(21162)] "TypeError: Cannot call method 'transaction' of null I/chromium( 1681): at Object.execute (file:///android_asset/www/lib/ngCordova/dist/ng-cordova.js:6378:12) I/chromium( 1681): at file:///android_asset/www/app/yards/yardsCtrl.js:30:32 I/chromium( 1681): at file:///android_asset/www/lib/ionic/js/ionic.bundle.js:48817:19 I/chromium( 1681): at Object.ionic.Platform.ready (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:2122:9) I/chromium( 1681): at Object.self.ready (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:48815:26) I/chromium( 1681): at Scope.$scope.insert (file:///android_asset/www/app/yards/yardsCtrl.js:29:28) I/chromium( 1681): at fn (eval at <anonymous> (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:21977:15), <anonymous>:4:209) I/chromium( 1681): at file:///android_asset/www/lib/ionic/js/ionic.bundle.js:57606:9 I/chromium( 1681): at Scope.$eval (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:24678:28) I/chromium( 1681): at Scope.$apply (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:24777:23)", source: file:///android_asset/www/lib/ionic/js/ionic.bundle.js (21162)

Chris Brody · Answer 11 · Thu Dec 24 2015 09:32:37 GMT+0800 (China Standard Time)

I just added a note to README.md and raised a question on the Ionic forum at: https://forum.ionicframework.com/t/keyboard-error-and-cordova-plugins/39851 (edited to add a question if I should raise this on the Ionic and/or Ionic2 project on Github)

I am waiting for an answer from Ionic. Guys it would help if you can add comment(s) of support to my question and/or raise an issue on Github if you think it is appropriate.

Closing since this does not seem to be fault of this plugin.

Chris Brody · Answer 12 · Fri Dec 25 2015 05:10:56 GMT+0800 (China Standard Time)

I also published brodybits / Cordova-quick-start-checklist and brodybits / Cordova-troubleshooting-guide with this issue documented.

borgbox · Answer 13 · Mon Jan 04 2016 06:19:48 GMT+0800 (China Standard Time)

I had the same issue, after a long search i found out that the root cause is in the "$ionicPlatform.ready", reach this method doesn't mean that the device is actually ready, this is an issue especially when dealing with cordova plugins. check the reference in the link below:

http://gyf1.com/blog/2015/06/22/initialize-angularjs-app-after-deviceready/

I solved my issue by using "document.addEventListener" in the beginning of my controller to start my database:

$scope.notes = [];
NoteStore.list($scope.notes).then(function(notes){
$scope.notes = notes;
});

}, false);

FX Bayu Anggara · Answer 14 · Fri Jan 22 2016 14:12:26 GMT+0800 (China Standard Time)

sometimes do reinstall platform is working... ionic platform rm android, ionic platform add android

Swastik Pareek · Answer 15 · Tue Apr 26 2016 16:38:19 GMT+0800 (China Standard Time)

@brodybits : I am having the same issue.
TypeError: Cannot call method 'transaction' of null
at Object.execute (file:///android_asset/www/js/ng-cordova.min.js:9:19175)
at file:///android_asset/www/js/services.js:10:32
at file:///android_asset/www/lib/ionic/js/ionic.bundle.js:48817:19
at Object.ionic.Platform.ready (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:2122:9)
at Object.self.ready (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:48815:26)
at Object.self.query (file:///android_asset/www/js/services.js:9:28)
at Object.self.get (file:///android_asset/www/js/services.js:49:24)
at file:///android_asset/www/js/controllers.js:54:22
at processQueue (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:23399:28)
at file:///android_asset/www/lib/ionic/js/ionic.bundle.js:23415:27

I have installed cordova 6.1.0 and ionic 1.7.14 . I have ageGate Validation function that just checks age and then runs the code -

    $scope.above18 = function() {
        var user = CreateUser.create($rootScope.uderData).then(function(result) {
            Data.get("id").then(function(response) {
                $cordovaSQLite.execute(db, "DROP TABLE IF EXISTS drinkasaur");
                $cordovaSQLite.execute(db, "CREATE TABLE IF NOT EXISTS drinkasaur (key text primary key, value text)");
                var newObj = {};
                newObj.key = "id";
                newObj.name = result.data.user._id;
                var newObj1 = {};
                newObj1.key = "email";
                newObj1.name = $rootScope.uderData.email;
                $scope.newDbEntery($rootScope.objName);
                $scope.newDbEntery($rootScope.objPic);
                $scope.newDbEntery(newObj);
                $scope.newDbEntery(newObj1);
                $rootScope.showHeader = true;
                $location.path("/landingPage");

            }, function(error) {
                var newObj = {};
                newObj.key = "id";
                newObj.name = result.data.user._id;
                var newObj1 = {};
                newObj1.key = "email";
                newObj1.name = $scope.userObj.email;
                $scope.newDbEntery($rootScope.objName);
                $scope.newDbEntery($rootScope.objPic);
                $scope.newDbEntery(newObj);
                $scope.newDbEntery(newObj1);
                $rootScope.showHeader = true;
                $location.path("/landingPage");
            });
        }, function(error) {});
    }

I when I call this function this js error comes.

Please help me out

Swastik Pareek · Answer 16 · Thu Apr 28 2016 12:55:17 GMT+0800 (China Standard Time)

Hey . I was able to fix the bug . It was not related to any specific cordova plugin but the cordova version.

I have recently upgraded my cordova version from 5.x.x to 6.x.x which was a break release (unfortunately) and openDB function which was initially taking database name as a whole and sole required parameter needed to have one more argument 'location' clubbed with database name as json ..

Due to this upgradation to break release my db var was getting a null value; and hence this problem.

So $cordovaSQLite.openDB("myapp9.db"); needed to be changed with $cordovaSQLite.openDB({name:"myapp9.db", location:'default'});

Changing this solved my problem.

Chris Brody · Answer 17 · Thu Apr 28 2016 21:10:18 GMT+0800 (China Standard Time)

Thanks @swastikpareek, this definitely needs to be documented. I raised #471 to track this.

cisdev749 · Answer 18 · Fri Jun 10 2016 15:36:33 GMT+0800 (China Standard Time)

Hi there,
if you use $cordovaSQLite.openDB to create db then you need to have two parameters first name and second is location pls do this to solve the problem "db = $cordovaSQLite.openDB({ name: 'app.db',location: 'default' });"

Eren Güvercin · Answer 19 · Sun Sep 11 2016 20:05:13 GMT+0800 (China Standard Time)

Thanks @cisdev749 , this solved my problem

MD KASIF · Answer 20 · Tue Mar 21 2017 03:23:30 GMT+0800 (China Standard Time)

This is due to you are trying to execute another excecutesql or transaction before finishing of current transaction.