AttributeError: 'AggsProxy' object has no attribute '_index'

[bepetersn]

This is probably not a bug on second glance, I must just be using the library incorrectly. Would love to receive that feedback. I am pretty new to this library as I am maintaining some legacy code.

This is (obviously) not on you, but for total context, this code worked before, in the sense that it didn't produce error at least, when I was using elasticsearch_dsl (version 6 -- with accompanying ESv6 product), but after upgrading, is causing a unittest failure with this error / code. I had to remove a reference to .aggs at line ~17 of the below code snippet on the rv of the first metric() call, where the comment with **** is located, before getting this error.

What is the bug?
Error with using aggregations:
AttributeError: 'AggsProxy' object has no attribute '_index'

How can one reproduce the bug?
Steps to reproduce the behavior:
I know this isn't enough, but it's a start...

from opensearch_dsl import Search, MultiSearch
from opensearch_dsl.query import Match, Terms, Term

rides = Search(using=client, index="rides")
ms = MultiSearch(using=client, index=index_name)
ms = ms.add(rides.filter(Term(normal_status=a)).extra(size=0))
ms = ms.add(rides.filter(Term(status=b)).extra(size=0))
ms = ms.add(rides.filter(Term(normal_status=c)).extra(size=0))
ms = ms.add(
    rides.filter(Terms(normal_status=[x, y, z])).extra(
        size=0
    )
)
ms = ms.add(
    rides.aggs
    .metric(                         
        "total_cost_incurred", "sum", field="cost_dollars"
    )                     # ****
    .metric(
        "cancellation_cost_incurred", "sum", field="cancellation_cost"
    )
)
responses = ms.execute()

What is the expected behavior?
I expect the execute() statement not to error out, at least.

What is your host/environment?

• I am using this dockerhub image: opensearchproject/opensearch:1.2.4
• OS: Amazon Linux 2
• opensearch-dsl==1.0.0
• opensearch-py==1.1.0

Do you have any additional context?
Traceback:

    responses = ms.execute()
  File "/Users/brian.peterson/project/venv/lib/python3.7/site-packages/opensearch_dsl/search.py", line 811, in execute
    index=self._index, body=self.to_dict(), **self._params
  File "/Users/brian.peterson/project/venv/lib/python3.7/site-packages/opensearch_dsl/search.py", line 794, in to_dict
    if s._index:
  File "/Users/brian.peterson/project/venv/lib/python3.7/site-packages/opensearch_dsl/utils.py", line 341, in __getattr__
    self.__class__.__name__, name
AttributeError: 'AggsProxy' object has no attribute '_index'

Anything else short of a full repro that would be of use? The index / mapping itself maybe?

[VachaShah]

Transferring this issue here as opensearch-dsl-py is being merged into opensearch-py as part of #194

[wbeckler]

@bepetersn your issue hasn't gotten traction for a while. Is it still of interest to you? Would you have any more context to share that you've gleaned since then?

[saimedhi]

please reopen the issue, if you think the bug still exists.