How to create a component in the Tridion JS Framework (Anguilla)?

Question

I am working on an extension that must create a component. Until now, my code looks like this:

var item = $models.createNewItem($const.ItemType.COMPONENT);
item.setPublication(pubId);
item.setOrganizationalItem(folderId);
item.setDefaultSubType($const.ComponentSubType.COMPONENT);
item.setSchema(schemaId);
item.setTitle("Test Title");

$evt.addEventHandler(item, "save", HandlerSave);
$evt.addEventHandler(item, "savefailed", HandlerSaveFailed);
$evt.addEventHandler(item, "validatefailed", HandlerValidateFailed);

item.setChanged(true);
item.save(false);

The error I get is: Unable to load XML: XML document must have a top level element.. Unable to update Component (tcm:0-0-0).

I think the problem is creating the xml. I tried with setXml/setContent..., but I don't know how to build the required xml for the component.

Answer 1

The thing is that you should have new component Xml set to the component before you can save it. Imagine you have a schema with default values associated with folder where this component (will)resides.

You should create component (UI side, just like you did) then load it (it will load xml of created item) and only then do save.

increment = 0;

var publicationId = "tcm:0-xx-1";
var orgItemId = "tcm:xx-yy-2";
var schemaId = "tcm:xx-zz-8";

var item = $models.createNewItem($const.ItemType.COMPONENT);
item.setPublication(publicationId);
item.setOrganizationalItem(orgItemId);
item.setDefaultSubType($const.ComponentSubType.COMPONENT);

var onLoad =  function() {
    $evt.removeEventHandler(item, "load", onLoad);
    var schema = $models.getItem(schemaId);
    item.setSchema(schema.getId());

    var onInstanceDataLoad =  function()
    {
        $evt.removeEventHandler(schema, "instancedataload", onInstanceDataLoad);

        item.setTitle("Test Title " + (increment++));
        item.setContent(schema.getInstanceData(orgItemId, true));
        item.save(true);
   };

   $evt.addEventHandler(schema, "instancedataload", onInstanceDataLoad);

    schema.loadInstanceData(orgItemId);
};

$evt.addEventHandler(item, "load", onLoad);
item.load(true);