Update with some preferences

openedx/core/djangoapps/plugins/constants.py

@@ -79,7 +79,7 @@ class PluginSignals(object):
 
 
 class PluginContextsViews(object):
-    STUDENT_DASHBOARD = u'student_dashboard'
+    COURSE_DASHBOARD = u'course_dashboard'
 
 
 class PluginContexts(object):

openedx/core/djangoapps/plugins/plugin_contexts.py

 from importlib import import_module
 
 from logging import getLogger
+
 from . import constants, registry
 
-log = getLogger(__name__)
 
+log = getLogger(__name__)
 
 def get_plugins_view_context(project_type, view_name, existing_context={}):
     """
@@ -18,11 +19,33 @@ def get_plugins_view_context(project_type, view_name, existing_context={}):
         context_function_path = _get_context_function(app_config, project_type, view_name)
         if context_function_path:
             module_path, _, name = context_function_path.rpartition('.')
-            context_function = getattr(import_module(module_path), name)
-            plugin_context = context_function(existing_context)
+            try:
+                module = import_module(module_path)
+            except ImportError, ModuleNotFoundError:
+                log.exception("Failed to import %s plugin when creating %s context", module_path, view_name)
+                continue
+            context_function = getattr(module, name, None)
+            if context_function:
+                plugin_context = context_function(existing_context)
+            else:
+                log.exception(
+                    "Failed to call %s function from %s plugin when creating %s context",
+                    name,
+                    module_path,
+                    view_name
+                )
+                continue
 
             # NOTE: If two plugins have try to set the same context keys, the last one
             # called will overwrite the others.
+            for key in plugin_context:
+                if key in aggregate_context:
+                    log.warning(
+                        "Plugin %s is overwriting the value of %s for view %s",
+                        app_config.__module__,
+                        key,
+                        view_name
+                    )
             aggregate_context.update(plugin_context)
 
     return aggregate_context