Helper tools for Cordova-sqlite-storage see: https://github.com/litehelpers/Cordova-sqlite-storage.
This tool allows using SQLite storage for mobile devices or web browsers. Its mechanism automatically selects the way needed for open databases using cordova-sqlite-storage plugin or WebSQL implementation, depending on the platform.
First, execute the default installation of Cordova-sqlite-storage plugin then add following scripts in your page:
<script type="text/javascript" src="js/DeviceInfo.js"></script>
<script type="text/javascript" src="js/SQLiteStorageHelper.js"></script>
- init(name, location)
onDeviceReady: function() {
app.receivedEvent('deviceready');
//Initialize after device is ready
SQLiteStorageHelper.init("mydb.db", "default");
}
Little trick checking a mobile device or web browser:
bindEvents: function ()
{
if (DeviceInfo.isMobile)
document.addEventListener("deviceready", this.onDeviceReady, false);
else
this.onDeviceReady(); //this is the browser
},
- getDb()
var db = SQLiteStorageHelper.getDb();
- onDbSuccess(msg)
SQLiteStorageHelper.onDbSuccess("executed");
- onDbError(err)
SQLiteStorageHelper.onDbSuccess("error");
- execute(sql, parameters, successCallBack, errorCallBack)
SQLiteStorageHelper.execute("SELECT name FROM sqlite_master WHERE type=? AND name NOT IN(?,?)",
["table", "__WebKitDatabaseInfoTable__", "sqlite_sequence"],
function (tx, res) {
for (var i = 0; i < res.rows.length; i++)
self.dropTable(res.rows[i].name);
});
- executeTransaction(sql, parameters, successCallBack, errorCallBack)
SQLiteStorageHelper.execute("SELECT name FROM sqlite_master WHERE type=? AND name NOT IN(?,?)",
["table", "__WebKitDatabaseInfoTable__", "sqlite_sequence"],
function (tx, res) {
for (var i = 0; i < res.rows.length; i++)
self.dropTable(res.rows[i].name);
});
- executeBatch(batch, successCallBack, errorCallBack)
SQLiteStorageHelper.executeBatch([Scripts1, Scripts1, ...]);
- getWhere(data)
var where = SQLiteStorageHelper.getWhere([{ col: "Col1", val: 1 }, { col: "Col2", val: 2 }, ...]);
Output Object
//values: Col1=? AND Col2=?
//parameters: [1, 2]
- select(obj)
SQLiteStorageHelper.insert({
table: "MyTable",
where: [{ col: "Col1", val: 1 }, { col: "Col2", val: 2 }, ...],
});
- update(obj)
SQLiteStorageHelper.insert({
table: "MyTable",
data: [{ col: "Col1", val: 1 }, { col: "Col2", val: 2 }, ...],
where: [{ col: "Col1", val: 1 }, { col: "Col2", val: 2 }, ...],
});
- remove(obj)
SQLiteStorageHelper.remove({
table: "MyTable",
where: [{ col: "Col1", val: 1 }, { col: "Col2", val: 2 }, ...]
});
- insert(obj)
SQLiteStorageHelper.insert({
table: "MyTable",
data: [{ col: "Col1", val: 1 }, { col: "Col2", val: 2 }, ...]
});
- clearTable(table)
self.clearTable("myTable");
- dropTable(obj)
self.dropTable("myTable");
- clearDb()
SQLiteStorageHelper.clearDb();
- dropDb()
SQLiteStorageHelper.dropDb();
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