phonegap sqllite Database: the statement callback raised exception - ajax

Question

i am having this strange "the statement callback raised an exception or error did not return false"
it is just a simple databases example.
my code is on github here:
https://github.com/prantikv/phonegapDBdemo
please read the comments in the code it explains everything.
i suspect the problem is in the ajax callbacks for the database.
if that is true than how can i make the ajax callback wait for data in sql-lite/phonegap?
function formSent(){//fired when form is submited
alert("formSent called");
db.transaction(queryDB, errorTrans);
return false;
}
function errorTrans(err){ //error for formsent
alert("formsent "+err.message+"|"+err.code);//error is generated here
}
function createSuccess(){//just alerts on success
alert("DB Created");
}
function populateDB(tx) {//transaction obj is passed. Table Created not populated
alert("populateDB called");
tx.executeSql('CREATE TABLE IF NOT EXISTS myDB (id , data)');
}
function onDeviceReady(){
db= window.openDatabase("Database", "1.0", "Display Name", 4*1024*1024);
db.transaction(populateDB, createERR, createSuccess);
}
function createERR(err){//error for create
alert("Create "+err.message);
}
AM i supposed to add return false for every database callback.if yes then which Boolean is to be returned when?
The phonegap doc examples dont have it http://docs.phonegap.com/en/2.2.0/cordova_storage_storage.md.html#Database

Answer 1

The error message usually isn't because of SQL, it is rather about exception that happens when you are executing callback for it. So you most probably have JS error happening.
I found
tx.executeSql('INSERT INTO myDB VALUES (?,?)', [username,email], insertSuccess, errorInsert);
on line 47 of index.js. It is lacking the (id,data) before VALUES. This causes the next SQL call
tx.executeSql('SELECT * FROM myDB', [], querySuccess, errorSelect);
to fail. Fix that and then try again.