Direct purchase order

Are there more options than "direct" or "indirect" for `session.purchase_type`?  If so, then I would use
```html
<b ng-if="session.purchase_type==='indirect' || session.purchase_type==='direct'">{{session.selected.name}}</b>
```
If `session.purchase_type` can only be "direct" or "indirect" then you are doing _two_ extra comparisons in the view, which is redrawn _every time a $scope object changes_.  This is really bad for performance.  You can completely ommit the ng-if statement.