Passing variable notation in helpers

[ronkpunk]

Hello and thanks for your (wonderful) plugin.

I'm working on a dynamic dialog that will popup using jsrender template and helpers.

I've this (simplified) code

<script type="text/x-jsrender" id="mytmpl">
  <p>{{:~GetLabel('label_key', '{{:my_variable}}')}}</p>
</script>

<script>
$.views.helpers({
    GetLabel: function (key, args) { return GetLabel(key, args, true); }
});
function GetLabel(key, args) {
  var value = null;
  $.ajax({
    /* ajax stuff */
  }).done(function (response) {
    value = response;
  });
  return value;
}
</script>

I've a "Label" controller in my WebAPI that search for "key" and, if match, try to perform a String.Format passing "args"

I try passing to my helper function either {{:my_variable}} and {{:my_variable}} with no luck

What I'm trying to obtain is to call server side label and put print command in that when I call template render

Is it possible in some way?

Thank you in advance Stefano

[BorisMoore]

If my_variable is a property of your contextual data object, then you can pass it to a helper like this

{{:~GetLabel('label_key', my_variable)}}

You never need to nest {{:...}} inside itself. The ... is where you put a code expression such as myProp + 'x', or ~GetLabel(1, 33, 'somestring', some.object.path).

But GetLabel() needs to return its result synchronously, so your ajax fetch result won't be returned correctly. You need to do the ajax fetch before rendering the template.... - or else use JsViews data-linking to dynamically update the label once your done() returns....

[ronkpunk]

Sure that GetLabel returns results synchronously.

It works perfectly! Thank you