Merge pull request #88 from eduNEXT/and/fix_studio_admin

fix: limit registration based on current installed apps

eox_nelp/admin/register_admin_model.py

@@ -2,6 +2,7 @@
 methods:
     register_admin_model: Force register admin model.
 """
+from django.apps import apps
 from django.contrib import admin
 
 
@@ -11,6 +12,11 @@ def register_admin_model(model, admin_model):
         model: Django model.
         admin_class: Admin model.
     """
+    try:
+        apps.get_app_config(model._meta.app_label)  # pylint: disable=protected-access
+    except LookupError:
+        return
+
     if admin.site.is_registered(model):
         admin.site.unregister(model)
 

eox_nelp/edxapp_wrapper/backends/certificates_m_v1.py

@@ -2,7 +2,9 @@
 This file contains all the necessary certificates dependencies from
 https://github.com/eduNEXT/edunext-platform/tree/master/lms/djangoapps/certificates
 """
-from lms.djangoapps.certificates import admin  # pylint: disable=import-error
+from django.apps import apps
+from django.contrib import admin
+from lms.djangoapps import certificates  # pylint: disable=import-error
 
 
 def get_generated_certificates_admin():
@@ -12,4 +14,7 @@ def get_generated_certificates_admin():
     Returns:
         GeneratedCertificateAdmin class.
     """
-    return admin.GeneratedCertificateAdmin
+    if apps.is_installed(certificates.models.__package__):
+        return certificates.admin.GeneratedCertificateAdmin
+
+    return admin.ModelAdmin