feat(setting): Enable super admin to set ALL device models as global

sets is_global=true and creates device models in global organization

!12 closes #29

app/itam/models/device_models.py

@@ -8,7 +8,7 @@ from access.models import TenancyObject
 from core.mixin.history_save import SaveHistory
 from core.models.manufacturer import Manufacturer
 
-
+from settings.models.app_settings import AppSettings
 
 class DeviceModel(DeviceCommonFieldsName, SaveHistory):
 
@@ -28,6 +28,17 @@ class DeviceModel(DeviceCommonFieldsName, SaveHistory):
         blank= True
     )
 
+
+    def clean(self):
+
+        app_settings = AppSettings.objects.get(owner_organization=None)
+
+        if app_settings.device_model_is_global:
+
+            self.organization = app_settings.global_organization
+            self.is_global = app_settings.device_model_is_global
+
+
     def __str__(self):
 
         return self.manufacturer.name + ' ' + self.name