Decorating the default DataAdapter

[Benjy Weinberger]

Hi, 

I'm new to select2 and want to change the MinimumInputLength behavior to remove the "Please enter x or more characters" prompt. 

I *think* the right way to do this is a custom decorator, something like:

function MyMinimumInputLength(decorated, $e, options) {

  this.minimumInputLength = options.get('minimumInputLength');

  decorated.call(this, $e, options);

}

MyMinimumInputLength.prototype.query = function(decorated, params, callback) {

  if ((params.term || '').length >= this.minimumInputLength) {

    decorated.call(this, params, callback);

  }

};

What I don't understand is, how do I get a reference to the default DataAdapter so I can add my decorator to it? The examples I've seen involve a custom DataAdapter, explicitly assigned to options.dataAdapter when the select2 is initialized. But that seems like overkill (plus I would have to manually apply all the other decorators I want, replicating existing logic). I want to do something like intercept the options after all defaults have been applied, take the value that Defaults.prototype.apply assigned to options.dataAdapter, and wrap it in my decorator. Is there a way to do that?

Thanks!

PS Even if there's a different way to remove that prompt, I'd like to understand the underlying question of how to decorate a non-custom adapter. Ta!

[Benjy Weinberger]

Update: I got things working with this wrapper. It takes the options I was going to pass in to select2(), applies the default processing so that I get whatever dataAdapter my options implied, and then decorates it. But this seems pretty hacky.

function initSelect2ControlFromOptions(selector, options) {

  $.fn.select2.amd.require(

    ['select2/utils', 'select2/defaults'],

    function (Utils, Defaults) {

      options.dataAdapter = Utils.Decorate(Defaults.apply(options).dataAdapter, MyMinimumInputLength);

      $(selector).select2(options);

    }

  );

}

Is there a better way? Thanks!