DRY for client encryption config

Author: aclark4life

django_mongodb_backend/schema.py

@@ -495,26 +495,21 @@ def _get_encrypted_fields(
         fields = model._meta.fields
         key_alt_name = key_alt_name or model._meta.db_table
 
+        options = client._options
+        auto_encryption_opts = options.auto_encryption_opts
+        key_vault_db, key_vault_coll = auto_encryption_opts._key_vault_namespace.split(".", 1)
+        key_vault_collection = client[key_vault_db][key_vault_coll]
+        kms_provider = router.kms_provider(model)
+        master_key = connection.settings_dict.get("KMS_CREDENTIALS", {}).get(kms_provider)
+
         # Initialize ClientEncryption once
         if client_encryption is None:
-            options = client._options
-            auto_encryption_opts = options.auto_encryption_opts
-            kms_provider = router.kms_provider(model)
-            master_key = connection.settings_dict.get("KMS_CREDENTIALS", {}).get(kms_provider)
             client_encryption = ClientEncryption(
                 auto_encryption_opts._kms_providers,
                 auto_encryption_opts._key_vault_namespace,
                 client,
                 client.codec_options,
             )
-            key_vault_db, key_vault_coll = auto_encryption_opts._key_vault_namespace.split(".", 1)
-            key_vault_collection = client[key_vault_db][key_vault_coll]
-        else:
-            auto_encryption_opts = client._options.auto_encryption_opts
-            key_vault_db, key_vault_coll = auto_encryption_opts._key_vault_namespace.split(".", 1)
-            key_vault_collection = client[key_vault_db][key_vault_coll]
-            kms_provider = router.kms_provider(model)
-            master_key = connection.settings_dict.get("KMS_CREDENTIALS", {}).get(kms_provider)
 
         field_list = []