light-children: Re-rendering of units upon display

mentoring/light_children.py

@@ -151,6 +151,16 @@ class XBlockWithLightChildren(LightChildrenMixin, XBlock):
         super(XBlockWithLightChildren, self).__init__(*args, **kwargs)
         self.load_children_from_xml_content()
 
+    @XBlock.json_handler
+    def view(self, data, suffix=''):
+        """
+        Current HTML view of the XBlock, for refresh by client
+        """
+        frag = self.student_view({})
+        return {
+            'html': frag.content,
+        }
+
 
 class LightChild(Plugin, LightChildrenMixin):
     """

static/js/mentoring.js

@@ -58,6 +58,7 @@ function MentoringBlock(runtime, element) {
         }
     }
 
+    function initXBlock() {
         $(element).find('.submit').bind('click', function() {
             var data = {};
             var children = getChildren(element);
@@ -72,4 +73,18 @@ function MentoringBlock(runtime, element) {
         });
 
         renderProgress();
+    }
+
+    function handleRefreshResults(results) {
+        $(element).html(results.html);
+        initXBlock();
+    }
+
+    function refreshXBlock() {
+        var handlerUrl = runtime.handlerUrl(element, 'view');
+        $.post(handlerUrl, '{}').success(handleRefreshResults);
+    }
+
+    // We need to manually refresh, XBlocks are currently loaded together with the section
+    refreshXBlock(element);
 }