priorised Customer Contacts over Vendor Contacts

inventory_provider/db/ims_data.py

@@ -222,10 +222,14 @@ def otrs_get_customer_users_rows(ds):
            'city', 'country', 'comments']
 
     def get_all_cus_user_rows():
-        yield from otrs_get_customer_contacts(ds)
-        yield from otrs_get_vendor_contacts(ds)
+        yielded_customer_emails = set()
+        for c in otrs_get_customer_contacts(ds):
+            yielded_customer_emails.add(c['email'])
+            yield c
+        for c in otrs_get_vendor_contacts(ds):
+            if c['email'] not in yielded_customer_emails:
+                yield c
 
     sorted_cus = sorted(get_all_cus_user_rows(), key=lambda x: x['email'])
-    # this will be used to prioritisation
     for cu in sorted_cus:
         yield list(cu.values())