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Database Using Phonegap
in Getting Started
•
8 years ago
Hi
I am testing SQLite database using phonegap and everything seems to work fine except appending the final resultset to the division with id=output. It returns 2 in the alert statement but the actual table is not displayed.
Any help please?
<!DOCTYPE html>
<html>
<head>
<title>Contact Example</title>
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.4.4/jquery.mobile-1.4.4.min.css"
/>
<script src="http://code.jquery.com/jquery-1.11.1.min.js"></script>
<script
src="http://code.jquery.com/mobile/1.4.4/jquery.mobile-1.4.4.min.js"></script>
<script
type="text/javascript" charset="utf-8"
src="cordova.js"></script>
<script type="text/javascript" charset="utf-8"
src="phonegap-1.2.0.js"></script>
<script type="text/javascript" charset="utf-8">
// Wait for PhoneGap to load
function
onLoad() {
document.addEventListener("deviceready", onDeviceReady,
false);
}
// Populate the database
function populateDB(tx)
{
tx.executeSql('DROP TABLE IF EXISTS
DEMO');
tx.executeSql('CREATE TABLE IF NOT EXISTS DEMO (id unique,
data)');
tx.executeSql('INSERT INTO DEMO (id, data) VALUES (1, "First
row")');
tx.executeSql('INSERT INTO DEMO (id, data) VALUES (2, "Second
row")');
}
// Query the database
function queryDB(tx)
{
tx.executeSql('SELECT * FROM DEMO', [], querySuccess,
errorCB);
}
// Query the success
callback
function querySuccess(tx, results)
{
var len =
results.rows.length;
var st="<table>";
for (var i=0;
i<len; i++){
st +=
"<tr><td>" + i +
"</td></tr>";
st +=
"<tr><td>" + results.rows.item(i).id +
"</td></tr>";
st +=
"<tr><td>" + results.rows.item(i).data +
"</td></tr>";
}
st
+= "</table>";
alert("Len =
" +
len);
$("#output").append(st);
}
// Transaction error callback
function errorCB(err)
{
console.log("Error processing SQL:
"+err.code);
}
// Transaction success callback
function successCB()
{
var db =
window.openDatabase("Database", "1.0",
"PhoneGap Demo",
2000);
db.transaction(queryDB, errorCB);
}
// PhoneGap is ready
function onDeviceReady()
{
var db =
window.openDatabase("Database", "1.0",
"PhoneGap Demo",
2000);
db.transaction(populateDB, errorCB,
successCB);
}
</script>
</head>
<body
onload="onLoad()">
<h1>Example1</h1>
<div
id="output">
</div>
</body>
</html>
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