studio-ui composer is ready to test actively

sites/all/modules/figli/edlp_studio/src/Controller/CompositionController.php

@@ -110,7 +110,7 @@ class CompositionController extends ControllerBase {
             '#options'=>array(
               'attributes' => array(
                 'data-drupal-link-system-path' => $url->getInternalPath(),
-                'nid' => $this->compo->id(),
+                'cid' => $this->compo->id(),
                 'class' => ['composition-link'],
                 'title'=>$title,
               ),
@@ -173,8 +173,10 @@ class CompositionController extends ControllerBase {
       $this->compo->setName($name);
     }
     $documents = array();
-    foreach ($new_documents as $nid) {
-      $documents[] = ['target_id'=>$nid];
+    if(count($new_documents)){
+      foreach ($new_documents as $nid) {
+        $documents[] = ['target_id'=>$nid];
+      }
     }
     $this->compo->set('documents', $documents);
     $this->compo->save();

sites/all/modules/figli/edlp_studio/src/Controller/StudioUIController.php

@@ -119,7 +119,9 @@ class StudioUIController extends ControllerBase {
       '#composer_actions' => array(
         'play_composition'=>array(
           "#type"=>'container',
-          "#markup"=>t('Play my composition'),
+          "#attributes"=>array(
+            "class"=>array("compo-player-controls")
+          )
         ),// TODO: add social media links (what about composition visibility uotside studio_ui ?)
       ),
     );