page_link.js in pageflow-internal-links-1.0.0

- old
+ new

@@ -1,16 +1,33 @@
 pageflow.internalLinks.PageLink = Backbone.Model.extend({
   i18nKey: 'pageflow/internal_links/page_link',
 
+  mixins: [pageflow.transientReferences],
+
   targetPage: function() {
     return pageflow.pages.getByPermaId(this.get('target_page_id'));
   },
 
   label: function() {
     return this.get('label');
   },
 
+  thumbnailFile: function() {
+    var thumbnailFile = this.getReference('thumbnail_image_id',
+                                           pageflow.imageFiles);
+
+    if (thumbnailFile) {
+      return thumbnailFile;
+    }
+    else if (this.targetPage()) {
+      return this.targetPage().thumbnailFile();
+    }
+    else {
+      return null
+    }
+  },
+
   editPath: function() {
     return '/internal_links_pages/' + this.getRoutableId() + '/page_links/' + this.id;
   },
 
   getRoutableId: function() {
@@ -30,6 +47,6 @@
   },
 
   remove: function() {
     this.collection.remove(this);
   }
-});
\ No newline at end of file
+});