simple demo of how to use dynamic filter

controller.js

var searchQuery = '';

function filter(collection){
  var models = [];
  _.each(collection.models, function(m){
    if (m.attributes.title.indexOf(searchQuery) > -1){
      models.push(m);
    }
  });
  return models;
}

setTimeout(function(){
  searchQuery = 'test';
  myDataFunction();
},10000);

controller.xml

<TableSection dataFilter="filter" dataFunction="myDataFunction" />