Question

I’m implementing a cross-platform app for Android, iOS, and BlackBerry. I’m using PhoneGap to produce native language versions for each platform. I want to know how to create, access, and search a SQLite database.

I’ve read in the documentation that it can be created via a Javascript file but I want to know where to place that file and how to reference it in the code.

Answer 1

Take a look at Lawnchair (http://brian.io/lawnchair/), its pretty easy to use and out-of-the box probably does most of what you need (including searching), it’s cross-browser, battle tested and degrades nicely through the use of adapters. There is an adapter for Blackberry, and a plugin that supports queries. Here is quick example using the webkit adapter, which is good for Android and iPhone, to show how simple it is.

<script type="text/javascript" src="Lawnchair.js" charset="utf-8"></script> 
<script type="text/javascript" src="webkit-sqlite.js" charset="utf-8"></script>

// Open local DB connection
var lawnchair = new Lawnchair({table:'mytable', adaptor:'webkit'}, function(){
    // Lawnchair setup! 
});

// Getting some data out of the lawnchair database
lawnchair.get('my_data_key', function(obj) {
    if (obj !== undefined) {
        lastSyncDate = obj.lastSync;
        dataList = obj.dataList;
    }
});

// Saving to the database
lawnchair.save({key:'my_data_key', lastSync: currentTime, dataList: someData});