Filters excludes values if model name doesn't exists in filter_or

[MathiasCClausen]

I have an issue, where my datamodel, sometimes have a relation to another table, and sometimes it is None. I use sqlalchemy-filters to search for items in a table, however when I add filter_or for a relation where the model name doesn't exists, all the items are excluded.

Is there any way I can avoid this behaviour? When i include some columns that only exists for some items/rows, even if try to search for another column, the items disappear because the column is included in the filter_or

In the below example, ProjectReference only exists for som items, where as other items have a relation to another table

filter_or=[
{"model": "ProjectReference", "field": "project_reference_name", "op": "ilike", "value": "%12345%"},
{"model": "SupplierPart", "field": "supplier_part_description", "op": "ilike", "value": "%12345%"},
{"model": "SupplierPart", "field": "part_inwatec_id", "op": "ilike", "value": "%12345%"},
{"model": "SupplierPart", "field": "supplier_part_id", "op": "ilike", "value": "%12345%"},
{"model": "Supplier", "field": "name", "op": "ilike", "value": "%12345%"}]