I have a database inside indexedDB filled using an Emberjs adapter. I have set the keypath like this :
this.addModel(App.Device, { keyPath: 'key' });
And my key is autoincremented when I parse my data the first time I got them like this :
data = data.map(function( item, idx ) {
item.key = idx;
return item;
});
After all of the data are store inside indexedDB, I want to add some more data, but I need to get to continue to set a key value inside my data.
How can I get the highest key (in my case it's a unique number (like an id)), so I can increment the one the key in my current data to add to my database ?
Here is the sample of my code that I want to use to add more data :
var request = indexedDB.open( 'products' );
request.onsuccess = function( e ) {
console.log('Success!');
that.setProperties({ db: e.target.result });
var db = e.target.result;
var reader = new window.FileReader();
reader.readAsDataURL(blob_);
var img64;
reader.onloadend = function() {
base64data = reader.result;
var dataImage = {
key: 42,
url: url_,
base64: base64data
}
that.storage.saveProduct( db, dataImage );
}
};
request.onerror = function( e ) {
console.log('Error!');
console.dir( e );
};
[edit] I forgot to put the saveProduct fct :
this.saveProduct = function( db, data ) {
var transaction = db.transaction( ["App.Device"], "readwrite" );
var store = transaction.objectStore( "App.Device" );
var request = store.add( data );
request.onerror = function( e ) {
console.log("Error",e.target.error.name);
//some type of error handler
};
request.onsuccess = function( e ) {
console.log("Device saved in db");
};
};
