Combine two directives together
<p>I'd like to use the given model-data by the formControlName-directive with my own directive.  </p>

<pre><code>&lt;input type="text"
       formControlName="endDate"
       my-directive&gt;
</code></pre>

<p>Is there a way to access the formControl-value in the directive? In a component it's very easy using ControlValueAccessors...</p>