Can't use filter with by_ref with aggregate with python v4 client

Support
1 
        text_chunk_collection.aggregate.over_all(
                    total_count=True,
                    filters=Filter.by_ref("belong_to_file_data").by_id().equal(file_data_uuid)
                )

Code like above get this error:

weaviate.exceptions.WeaviateInvalidInputError: Invalid input provided: Single target references are not supported in this version of Weaviate. Please update to >=1.23.3..

but my weaviate is 1.23.6, and if I change aggregate.over_all to query.fetch_objects then everything works fine

2

The error message is wrong and it is already fixed on our dev branch but I’m not sure if it is released.

You need to do

        text_chunk_collection.aggregate.over_all(
                    total_count=True,
                    filters=Filter.by_ref_multi_target("belong_to_file_data",COLLECTION_NAME).by_id().equal(file_data_uuid)
                )

Aggregate uses graphql in the background and sadly needs to have the name of the target collection

3

Thank you. Will try it.

4

Saddly I got this error instead

weaviate.exceptions.WeaviateInvalidInputError: Invalid input provided: Multi target references are not supported in this version of Weaviate. Please update to >=1.23.3..

the filter is like this

 filters=Filter.by_ref_multi_target(link_on="belong_to_file_data",target_collection="FileData").by_id().equal(file_data_uuid)
5

Are you on the latest version? -rc1?

6

client is 4.4b8
weavatie is 1.23.6

I will try 4.4rc1

7

is there a migrate guide for 4.4rc1?
It changed alot for these:
classes.Configure
classes.Property

8

There is one here:

Note that we had warnings for a few releases before removing deprecated code in the -rc releases. So you might need to scroll a few versions back.

You probably need to change

properties=[Property(...), ReferenceProperty(...), ...]

to

properties=[Property(...), ...other props...]
references=[ReferenceProperty(...), ..other refs..]
9

nvm I found where to look for

10

Finally get it to work. Thank you.