Feature/remove session store

[Huongg]

Description

Fixes #2208
This PR is part of the effort to remove experiment tracking by removing the session store from the back-end.

Main Changes:

• Completely removed database.py.
• Completely removed sqlite_store.py.
• Removed session_store references from:
  • data_loader.py
  • server.py
• Deleted all tests related to the session store.

QA Notes:
Please pull the changes locally and check that the app runs without errors,

Checklist

• Read the contributing guidelines
• Opened this PR as a 'Draft Pull Request' if it is work-in-progress
• Updated the documentation to reflect the code changes
• Added new entries to the RELEASE.md file
• Added tests to cover my changes

[ravi-kumar-pilla]

I think you can keep the code from line 18-23 as is, as this is not related to ET

[ravi-kumar-pilla]

This file is for handling SQLite which is not needed anymore, so I guess we can delete the file entirely

[ravi-kumar-pilla]

We need to make changes to all the starter templates (may be a note saying kedro-viz v11 does not support ET) as a follow up - https://github.com/kedro-org/kedro-starters/blob/main/spaceflights-pandas-viz/%7B%7B%20cookiecutter.repo_name%20%7D%7D/src/%7B%7B%20cookiecutter.python_package%20%7D%7D/settings.py

[Huongg]

hey, @merelcht has already raised this concern, and I’ll create a ticket for it. For now, we’ve added a deprecation warning for Kedro datasets to alert users about this change coming in the next release.

[ravi-kumar-pilla]

Hi @Huongg ,

I know this PR is related to removing only Session store. I had a brief look and it looks fine for me. In general, I prepared a checklist as reference (you may add to this, but overall this would suffice) -

• Remove graphql folder from api
• Remove graphql_router from apps.py (line 66)
• Remove “/et” from apps.py (line 84)
• Remove SQLite Store from integrations/kedro/sqlite_store (This might also require changes to kedro starters as we say in the docs for ET, configure SQLiteStore in settings.py)
• Remove docs related to ET

I hope this helps. I will also have a look at this PR once it is ready for review. Thank you

[Huongg]

Thanks, @ravi-kumar-pilla, for the helpful guidance! I’ve implemented your suggestion to update the code related to removing session_store. The changes related to GraphQL and the router will be addressed in a separate PR to keep this one more focused and easier to review. Please take a look and let me know your thoughts.

Currently, the test coverage isn’t at 100% because I’ve deleted all the graphql_tests. Since the GraphQL-related code will be removed soon, I’m wondering if it's okay to ignore this in the PR for now. Here's the link to the error for reference: https://github.com/kedro-org/kedro-viz/actions/runs/12160128272/job/33911739972?pr=2219

[tynandebold]

Is the plan to remove all of the graphql code, or only that which relates to experiment tracking?

I'm in favor of removing it entirely. There's one graphql request that's used on the flowchart page though, and that's the getVersion one. That could definitely be moved to a REST endpoint. Bringing up here so we don't forget about it.

[Huongg]

Is the plan to remove all of the graphql code, or only that which relates to experiment tracking?

I'm in favor of removing it entirely. There's one graphql request that's used on the flowchart page though, and that's the getVersion one. That could definitely be moved to a REST endpoint. Bringing up here so we don't forget about it.

hey so I'm thinking we're removing the graphql code related to ET in this PR, and I've opened a new issue separately to update the getVersion here

[jitu5]

Thanks @Huongg

[SajidAlamQB]

Awesome work @Huongg, I've looked through most of the changes and it LGTM!