Feature: consumption templates (#4196)

* Initial implementation of consumption templates

* Frontend implementation of consumption templates

Testing

* Support consumption template source

* order templates, automatically add permissions

* Support title assignment in consumption templates

* Refactoring, filters to and, show sources on list

Show sources on template list, update some translation strings

Make filters and

minor testing

* Update strings

* Only update django-multiselectfield

* Basic docs, document some methods

* Improve testing coverage, template multi-assignment merges

src/paperless_mail/mail.py

@@ -436,6 +436,9 @@ class MailAccountHandler(LoggingMixin):
         elif rule.assign_title_from == MailRule.TitleSource.FROM_FILENAME:
             return os.path.splitext(os.path.basename(att.filename))[0]
 
+        elif rule.assign_title_from == MailRule.TitleSource.NONE:
+            return None
+
         else:
             raise NotImplementedError(
                 "Unknown title selector.",
@@ -690,6 +693,7 @@ class MailAccountHandler(LoggingMixin):
                 input_doc = ConsumableDocument(
                     source=DocumentSource.MailFetch,
                     original_file=temp_filename,
+                    mailrule_id=rule.pk,
                 )
                 doc_overrides = DocumentMetadataOverrides(
                     title=title,
@@ -697,7 +701,9 @@ class MailAccountHandler(LoggingMixin):
                     correspondent_id=correspondent.id if correspondent else None,
                     document_type_id=doc_type.id if doc_type else None,
                     tag_ids=tag_ids,
-                    owner_id=rule.owner.id if rule.owner else None,
+                    owner_id=rule.owner.id
+                    if (rule.assign_owner_from_rule and rule.owner)
+                    else None,
                 )
 
                 consume_task = consume_file.s(