Errors: Add CommunityNotSelectedError for conditional check on config

invenio_records_resources/resources/errors.py

@@ -1,4 +1,4 @@
 # -*- coding: utf-8 -*-
 #
 # Copyright (C) 2020 CERN.
 # Copyright (C) 2020 Northwestern University
@@ -40,6 +40,8 @@
     QuerystringValidationError,
     RecordPermissionDeniedError,
     RevisionIdMismatchError,
+    CommunityNotSelectedError,
+    CannotRemoveCommunityError,
 )
 
 
@@ -207,4 +209,16 @@
                 description="Uploading selected files will result in exceeding the max amount per record.",
             )
         ),
+        CommunityNotSelectedError: create_error_handler(
+            HTTPJSONException(
+                code=400,
+                description="Cannot publish without selecting a community.",
+            )
+        ),
+        CannotRemoveCommunityError: create_error_handler(
+            HTTPJSONException(
+                code=400,
+                description="Cannot remove. A record should be part of atleast 1 community.",
+            )
+        ),
     }

invenio_records_resources/services/errors.py

@@ -1,4 +1,4 @@
 # -*- coding: utf-8 -*-
 #
 # Copyright (C) 2020 CERN.
 # Copyright (C) 2020 Northwestern University.
@@ -110,3 +110,22 @@
                 )
             )
         )
+
+
+class CommunityNotSelectedError(Exception):
+    """Error thrown when a record is being created/updated with less than 1 community."""
+
+    def __init__(self):
+        """Constructor."""
+        super().__init__(
+            _("Cannot publish without selecting a community.")
+        )
+
+class CannotRemoveCommunityError(Exception):
+    """Error thrown when the last community is being removed from the record."""
+
+    def __init__(self):
+        """Constructor."""
+        super().__init__(
+            _("A record should be part of atleast 1 community.")
+        )