PLAT-1774 Move x_module monkey-patching

cms/djangoapps/xblock_config/apps.py

@@ -0,0 +1,26 @@
+"""
+xblock_config Application Configuration
+"""
+from __future__ import absolute_import
+
+from django.apps import AppConfig
+
+import cms.lib.xblock.runtime
+import xmodule.x_module
+from openedx.core.lib.xblock_utils import xblock_local_resource_url
+
+
+class XBlockConfig(AppConfig):
+    """
+    Default configuration for the "xblock_config" Django application.
+    """
+    name = u'xblock_config'
+    verbose_name = u'XBlock Configuration'
+
+    def ready(self):
+        # In order to allow descriptors to use a handler url, we need to
+        # monkey-patch the x_module library.
+        # TODO: Remove this code when Runtimes are no longer created by modulestores
+        # https://openedx.atlassian.net/wiki/display/PLAT/Convert+from+Storage-centric+runtimes+to+Application-centric+runtimes
+        xmodule.x_module.descriptor_global_handler_url = cms.lib.xblock.runtime.handler_url
+        xmodule.x_module.descriptor_global_local_resource_url = xblock_local_resource_url