I tried to use a HTML in android to create a table in sqlite but it is not working
Sample HTML is here
<!DOCTYPE html>
<html>
<head>
<title>Contact Example</title>
<script type="text/javascript" charset="utf-8" src="phonegap-1.0.0.js"></script>
<script type="text/javascript" charset="utf-8">
// Wait for PhoneGap to load
//
//document.addEventListener("deviceready", onDeviceReady, false);
// PhoneGap is ready
//
function onDeviceReady() {
var db = openDatabase("Database", "1.0", "PhoneGap Demo", 200000);
db.transaction(populateDB, errorCB, successCB);
}
// 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")');
}
// Transaction error callback
//
function errorCB(tx, err) {
alert("Error processing SQL: "+err);
}
// Transaction success callback
//
function successCB() {
alert("success!");
}
</script>
</head>
<body onload="onDeviceReady()">
<h1>Example</h1>
<p>Database</p>
</body>
</html>
Android 2.2
I am not able to see any database create in android. Please some suggestion
I think your database created in android's cache directory, that's why to are unable to
see it. so use WebView's setting method and make cache enable also give WebView's
SQLite database path to your cache directory then use your database.
If I am wrong then please let me know it.
EDIT: look at this,
Step 1: Create a WebView,
Step 2. Get the webSettings, and set the Database Path. The path should be the path to your databases, which will be /path/path/your_package_name/.
appView.setWebChromeClient(new WebClient(this));
WebSettings settings = appView.getSettings();
settings.setJavaScriptEnabled(true);
settings.setJavaScriptCanOpenWindowsAutomatically(true);
settings.setDatabaseEnabled(true);
settings.setDatabasePath("/data/data/<database path>/app_database");
Step 3: Create a WebChromeClient, and override the onExceededDatabaseQuota method. This is called when you first open the application because there’s initially no database setup. This will allow you to set the quota in Java. Since this was test code, I just threw an arbitrary value in here.
final class WebClient extends WebChromeClient {
Context mCtx;
WebClient(Context ctx)
{
mCtx = ctx;
}
public void onExceededDatabaseQuota(String url, String databaseIdentifier,
long currentQuota, long estimatedSize,
long totalUsedQuota,WebStorage.QuotaUpdater quotaUpdater)
{
Log.d(LOG_TAG, "We exceeded the quota");
quotaUpdater.updateQuota(100000);
}
}
EDIT: for more details look at here.
Thanks.
On rooted device go to :
DDMS
File Explorer
data ->data
package name
app_databases
Here "app_databases" contains "Databases.db" file that contains other databases files .
WebView has the ability to invoke java code through javascript code. How about trying this solution?
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hi i am new to phonegap .. i try using phonegap with database now, i am able to display the records in emulator / fetch record .. but when i try to build the application in build.phonegap.com to make .apk when i install the application and run in my android no record display .. my question is how can i build my application including the database ? i have .db already where should i place it or something do i need to add some script ? hope u get my point and sorry for my english..
here is the code:
<!DOCTYPE html>
<html>
<head>
<title>Storage Example</title>
<script type="text/javascript" charset="utf-8" src="cordova-2.4.0.js"></script>
<script type="text/javascript" src="cordova.js"></script>
<script type="text/javascript" charset="utf-8">
// Wait for Cordova to load
//
document.addEventListener("deviceready", onDeviceReady, false);
// Cordova is ready
//
function onDeviceReady() {
var db = window.openDatabase("Database", "1.0", "Cordova Demo", 200000);
}
function clickFunc(){
var db = window.openDatabase("Database", "1.0", "Cordova Demo", 200000);
db.transaction(selectData);
}
function selectData(tx){
tx.executeSql("SELECT * FROM test",[],resultSuccess,resultError);
}
function resultError(error){
alert("Error: "+error);
}
function resultSuccess(tx, response){
var div = document.getElementById('display');
var tmp = "<table><tr><th>ID</th><th>DATA</th></tr>";
for(var i = 0;i<response.rows.length;i++){
tmp += "<tr><td>" + response.rows.item(i).id + "</td><td>" + response.rows.item(i).data + "</td></tr>";
div.innerHTML = tmp;
}
}
</script>
</head>
<body>
<input type="button" value="FITCH" id="btnSelect" onclick="clickFunc();"/>
<div id="display">
</div>
Your create only database but your not create any table and nothing to insert it. So that your apk doesn't produce your excepted result.
So you will try this code
<!DOCTYPE html>
<html>
<head>
<title>Storage Example</title>
<script type="text/javascript" charset="utf-8" src="cordova-2.4.0.js"></script>
<script type="text/javascript" src="cordova.js"></script>
<script type="text/javascript" charset="utf-8">
// Wait for Cordova to load
//
document.addEventListener("deviceready", onDeviceReady, false);
// Cordova is ready
//
function onDeviceReady() {
var db = window.openDatabase("Database", "1.0", "Cordova Demo", 200000);
}
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")');
}
function clickFunc(){
var db = window.openDatabase("Database", "1.0", "Cordova Demo", 200000);
db.transaction(selectData);
}
function selectData(tx){
tx.executeSql("SELECT * FROM test",[],resultSuccess,resultError);
}
function resultError(error){
alert("Error: "+error);
}
function resultSuccess(tx, response){
var div = document.getElementById('display');
var tmp = "<table><tr><th>ID</th><th>DATA</th></tr>";
for(var i = 0;i<response.rows.length;i++){
tmp += "<tr><td>" + response.rows.item(i).id + "</td><td>" + response.rows.item(i).data + "</td></tr>";
div.innerHTML = tmp;
}
}
</script>
</head>
<body>
<input type="button" value="FITCH" id="btnSelect" onclick="clickFunc();"/>
<div id="display">
</div>
If you need more details please refer this link: http://docs.phonegap.com/en/2.7.0/cordova_storage_storage.md.html#Storage
I am a total beginner with Phonegap/cordova so bear with me.
I have a blank application that I would like to connect to a database and display the results. Below is my code..
<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="jquery.mobile-1.4.2.css" />
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript" src="js/cordova.js"></script>
<script type="text/javascript" src="js/index.js"></script>
<script type="text/javascript" src="js/jquery.mobile-1.4.2.js"></script>
<script type="text/javascript">
//add listener when device ready
document.addEventListener("deviceready", onDeviceReady, false);
var db = window.openDatabase("Dummy_DB", "1.0", "Just a Dummy DB", 0); //will create database Dummy_DB or open it
//function will be called when device ready
function onDeviceReady(){
db.transaction(populateDB, errorCB, successCB);
}
//create table and insert some record
function populateDB(tx) {
tx.executeSql('CREATE TABLE IF NOT EXISTS SoccerPlayer (id INTEGER PRIMARY KEY AUTOINCREMENT, Name TEXT NOT NULL, Club TEXT NOT NULL)');
tx.executeSql('INSERT INTO SoccerPlayer(Name,Club) VALUES ("Alexandre Pato", "AC Milan")');
tx.executeSql('INSERT INTO SoccerPlayer(Name,Club) VALUES ("Van Persie", "Arsenal")');
}
//function will be called when an error occurred
function errorCB(err) {
alert("Error processing SQL: "+err.code);
}
//function will be called when process succeed
function successCB() {
alert("success!");
db.transaction(queryDB,errorCB);
}
//select all from SoccerPlayer
function queryDB(tx){
tx.executeSql('SELECT * FROM SoccerPlayer',[],querySuccess,errorCB);
}
function querySuccess(tx,result){
$('#SoccerPlayerList').empty();
$.each(result.rows,function(index){
var row = result.rows.item(index);
$('#SoccerPlayerList').append('<li><h3 class="ui-li-heading">'+row['Name']+'</h3><p class="ui-li-desc">Club '+row['Club']+'</p></li>');
});
$('#SoccerPlayerList').listview();
}
</script>
</head>
<body>
<div data-role="page">
<div data-role="header" data-position="fixed" data-theme="b">
<h1>Soccer Player</h1>
</div>
<div data-role="content">
<ul id="SoccerPlayerList">
</ul>
</div>
</div>
<!--end of Soccer Player Page--->
</body>
</html>
The code doesn't seem to create or read any database at all. When I load the application onto my android phone it shows no results, even when I load it in a browser it loads no results.
I am not getting any console errors, but I do get an error in my LogCat error opening trace file: No such file or directory (2).
Am I missing something to make the database connections work? Or is there something that I can't seem to find in my code that is wrong?
Change this:
//add listener when device ready
document.addEventListener("deviceready", onDeviceReady, false);
var db = window.openDatabase("Dummy_DB", "1.0", "Just a Dummy DB", 0); //will create database Dummy_DB or open it
//function will be called when device ready
function onDeviceReady(){
db.transaction(populateDB, errorCB, successCB);
}
TO:
//add listener when device ready
document.addEventListener("deviceready", onDeviceReady, false);
var db;
//function will be called when device ready
function onDeviceReady(){
db = window.openDatabase("Dummy_DB", "1.0", "Just a Dummy DB", 0); //will create database Dummy_DB or open it
db.transaction(populateDB, errorCB, successCB);
}
You need to wait for the deviceReady call be for defining your database.
I am trying to create a database using phonegap's api:
In order to do this I have used the following html:
<!DOCTYPE HTML>
<html>
<head>
<title>Cordova</title>
<script type="text/javascript" charset="utf-8" src="cordova-2.0.0.js"></script>
<script type="text/javascript" charset="utf-8">
// Wait for Cordova to load
//
document.addEventListener("deviceready", onDeviceReady, false);
// Cordova is ready
//
function onDeviceReady() {
var db = window.openDatabase("test", "1.0", "Test DB", 1000000);
alert("database created");
}
</script>
</head>
<body>
<form name="input" action="html_form_action.asp" method="get">
<input type="submit" value="Create Db" />
</form>
</body>
</html>
The buttone doesnt do anyting. The idea is that when the app starts I'm supposed to get confirmation that a database has been created. However this is not happening. Please help...
**Hi check whether Deviceready fires or not then try this **
function onDeviceReady() {
alert("onDeviceReady");
try {
if (!window.openDatabase) {
alert('Browser does not Support this');
} else {
var shortName = 'DbName';
var version = '1.0';
var displayName = 'DBName';
var maxSize = 100000; // in bytes
openDatabase(shortName, version, displayName, maxSize);
alert('DB created');
}
} catch(e) {
if (e == 2) {
// Version mismatch..
console.log("Invalid database version.");
} else {
console.log("Unknown error "+ e +".");
}
return;
}
}
I think there is problem in your js location path . I run your code and i didn't get any error.
Please check your path of your cordova.js . I think you put that js in js folder of assets/www/js
I dont think 'alert()' works inside a webview as-is. Try console.log() instead to output a message (if you are using eclipse), or some other method - perhaps changing the content of a div - to show you the results.
In my application, i want to insert the value in the table. i have created the databse in onDeviceReady() method in the index.html file.
<!DOCTYPE html>
<!-- Auto Generated with Sencha Architect -->
<!-- Modifications to this file will be overwritten. -->
<html>
<head>
<meta name="generator" content="HTML Tidy, see www.w3.org">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Teritree</title>
<script type="text/javascript" id="phonegap" src=
"cordova-2.0.0.js">
</script>
<script type="text/javascript" src="barcodescanner.js">
</script>
<script src="sencha-touch-all.js" type="text/javascript">
</script>
<link rel="stylesheet" type="text/css" href="app.css">
<script type="text/javascript" src="app/Ext.ux.touch.Rating.js">
</script>
<script type="text/javascript" src="app/app.js">
</script>
<script type="text/javascript">
Ext.Loader.setConfig({ disableCaching: false });
Ext.Ajax.setDisableCaching(false);
</script>
<script type="text/javascript" charset="utf-8">
var pictureSource; // picture source
var destinationType; // sets the format of returned value
var mydb;
// Wait for PhoneGap to connect with the device
function onLoad() {
document.addEventListener("deviceready",onDeviceReady,false);
}
// PhoneGap is ready to be used!
function onDeviceReady() {
console.log("it is in ondevice ready method..");
mydb = window.openDatabase("teritreeDb", "1.0", "TestDB", 10000);
console.log("it is in ondevice ready method..1");
mydb.transaction(populateDB, errorCB, successCB);
console.log("it is in ondevice ready method..2");
}
function populateDB(tx) {
console.log("it is in populateDB----------1");
tx.executeSql('DROP TABLE IF EXISTS DEMO', function () {
tx.executeSql('CREATE TABLE IF NOT EXISTS DEMO (id unique, data)', function () {
console.log("Table created");
});
});
// Transaction error callback
//
function errorCB(tx, err) {
alert("Error processing SQL: "+err);
}
// Transaction success callback
//
function successCB() {
alert("success!");
}
}
</script>
<script type="text/javascript">
if (!Ext.browser.is.WebKit) {
alert("The current browser is unsupported.\n\nSupported browsers:\n" +
"Google Chrome\n" +
"Apple Safari\n" +
"Mobile Safari (iOS)\n" +
"Android Browser\n" +
"BlackBerry Browser"
);
}
</script>
</head>
<body>
</body>
</html>
Now i have one signup screen and there in the signup screen i have submit button. So if i click the submit button, all the details should store in the database means in the DEMO table..So in the controller, i am writing the button event,
onSubmitButtonTap : function(button, e, options) {
mydb = window.openDatabase("appDb", "1.0", "Test DB", 1000000);
mydb.transaction(storeCustomerDetails, error, success);
function storeCustomerDetails(tx)
{
tx.executeSql('insert into DEMO (id,data) values("1","Hello")');
tx.executeSql('insert into DEMO (id,data) values("2","Hello World")');
}
function error(){
alert("data is not inserted");
}
function success(){
alert("data is succesfully inserted");
}
},
but it is giving me the alert, data is not inserted.
I followed the link: Phonegap DB Link
Please help..
Use Cordova 2.0.0 and your issue will be solved.. You will be able to see the database you created in the file explorer. Do let me know if it helps you.
Arindam, do not forget by default the executing of the sql is asyncronious. Therefore nobody warranty your sqls will be executed in order you have defined in function populateDB(tx). Eg. it could execute first create than delete...
To be sure in the order you have to define subsequent calls in the callback function
function populateDB(tx) {
tx.executeSql('DROP TABLE IF EXISTS DEMO', function () {
tx.executeSql('CREATE TABLE IF NOT EXISTS DEMO (id unique, data)', function () {
console.log("Table created");
});
});
}
Cheers, Oleg
i am using PhoneGap,n using this code in xCode then run properly and database show in, iphone simulator-->5.0-->Applications--> (application name) --> Webkit --> Database
But when i us in Eclipse, then it not create any database in ddms->data->data->database.
how it work proper. Suggest me
<!DOCTYPE html>
<html>
<head>
<title>Contact Example</title>
<script type="text/javascript" charset="utf-8" src="phonegap.js"></script>
<script type="text/javascript" charset="utf-8">
// Wait for PhoneGap to load
//
document.addEventListener("deviceready", onDeviceReady, false);
// PhoneGap is ready
//
function onDeviceReady() {
var db = window.openDatabase("Database", "1.0", "PhoneGap Demo", 200000);
db.transaction(populateDB, errorCB, successCB);
}
// 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")');
}
// Transaction error callback
//
function errorCB(tx, err) {
alert("Error processing SQL: "+err);
}
// Transaction success callback
//
function successCB() {
alert("success!");
}
</script>
</head>
<body>
<h1>Example</h1>
<p>Database</p>
</body>
</html>
DDMS does not have access to the /data directory. See these these two stackoverflow discussions for workarounds:
Copying to sdcard
Using adb pull