check table exists before loading from db

care/facility/static_data/icd11.py

@@ -1,7 +1,7 @@
 import contextlib
 import json
 
-from django.db.utils import ProgrammingError
+from django.db import connection
 from littletable import Table
 
 from care.facility.models.icd11_diagnosis import ICD11Diagnosis
@@ -13,10 +13,11 @@ def fetch_data():
 
 
 def fetch_from_db():
-    try:
+    # This is a hack to prevent the migration from failing when the table does not exist
+    all_tables = set(connection.introspection.table_names())
+    if set("facility_icd11diagnosis") & all_tables:
         return ICD11Diagnosis.objects.all().values("id", "label")
-    except ProgrammingError as e:
-        print(e)
+    else:
         return []