Chris Dutrow Chris Dutrow - 4 months ago 20
Javascript Question

Specify an HTML table's <tbody> element as a region in Marionette for Backbone.js

Problem

Using a Backbone.Marrionette.Layout to present some tabular data. The

<tbody>
portion of the table is a Backbone.Marionette.Region that is meant to display a Backbone.Marionette.CollectionView.

I can not figure out how to do this using Marionette's "Regions" without messing up the table display by inserting an extra HTML element inside the
<tbody>
element.

Example Code

The
Layout
looks like this:

Backbone.Marionette.Layout.extend({
template:...
regions:{
list_region: '#list-region'
}
onRender:function(){
var collection = new TheCollection()
var collectionView = new TheCollectionView({
collection: collection
})
// PROBLEM: The region seems to needs its own HTML element,
// and the CollectionView also seems to need its on HTML
// element, but as far as I can see, there is only room
// for one element: <tbody>?
this.list_region.show(collectionView);
});


The template for the Layout comprises the entire table:

<table>

<tbody id='list-region'>

</tbody>

<tfoot id='footer-region'>
Some other stuff goes here that is not a collection, so I was able
to make the View's 'tagName' property 'tr', which worked fine.
</tfoot>

</table>


Any suggestions?

Answer

Is the intent of this layout solely to facilitate a table? If so, you should look at using a CompositeView instead.


RowView = Marionette.ItemView.extend({
  tagName: "tr",
  template: ...
});

TableView = Marionette.CompositeView.extend({
  template: ...,

  childView: RowView,

  childViewContainer: "#list-region"
});

That's pretty much it. This will render all of your itemViews in to the tbody.