Saving a Kendo datasource using jStorage - kendo-ui

Question

I'm adding and removing data to a Kendo dataSource. I wish to save it localStorage, and be able to read it again from localStorage.
Here I've attempted to use jStorage for the saving and loading of data.
How it's loaded:
if ($.jStorage.get('favoritter') != null) {
var datakilde_favoritter = $.jStorage.get('favoritter');
} else {
var data = [
{id: 5, name: "LINK ONE", url: "http://www.linkone.com" }
];
var datakilde_favoritter = new kendo.data.DataSource({
data: data,
sort: { field: "name", dir: "asc" }
});
}
How it's saved:
$.jStorage.set('favoritter', datakilde_favoritter);

Answer 1

Define your DataSource as:
var ds = new kendo.data.DataSource({
transport: {
read : function (op) {
var data = $.jStorage.get('favoritter');
if (!data) {
data = [
{id: 5, name: "LINK ONE", url: "http://www.linkone.com" }
];
}
op.success(data);
},
update : function (op) {
$.jStorage.set("favoritter", ds.data());
op.success(op.data);
},
destroy: function (op) {
console.log("destroy", ds.data());
$.jStorage.set("favoritter", ds.data());
op.success(op.data);
},
create : function (op) {
$.jStorage.set("favoritter", ds.data());
op.success(op.data);
}
},
sort : { field: "name", dir: "asc" },
pageSize : 10,
schema : {
model: {
id : "id",
fields: {
id : { type: 'number' },
name: { type: 'string' }
}
}
}
});
You might consider removing create and destroy if not needed.
And your grid would be something like:
var grid = $("#grid").kendoGrid({
dataSource: ds,
editable : "popup",
pageable : true,
toolbar : ["create"],
columns : [
{ command: ["edit", "destroy"], width: 100 },
{ field: "id", width: 90, title: "#" },
{ field: "name", width: 90, title: "URL Name" }
]
}).data("kendoGrid");
Basically when updating you need to invoke op.success with the data returned from the server. In your case since it is the browser itself, you don't need just to return the original data.