Feature/orm support sql datanodes

[Naveencodespeaks]

✨ Feature: ORM Support for SQL Data Nodes using SQLAlchemy

This PR adds ORM support for SQL Data Nodes using SQLAlchemy — enabling ORM-style CRUD operations and seamless integration with Taipy’s data layer.

---

🧩 Highlights

🧱 ORMSessionManager

• Manages SQLAlchemy engine, sessions, and commits

• Uses expire_on_commit=False to prevent DetachedInstanceError

🧠 SQLAlchemyTableDataNode

• Full CRUD support (create, read, update, delete)

• Integrates with DataNode protocol (read / write)

• Returns detached model instances safe for use post-session

🧪 Unit Tests

• Verified on SQLite with SQLAlchemy ORM

• ✅ 100% CRUD coverage, clean teardown

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🧩 Dependencies

Dependency | Version -- | -- 🐍 Python | 3.11.7 🧱 SQLAlchemy | 2.0.35 🧠 Taipy Core | Local dev version 🧪 pytest | 8.3.3 🧰 marshmallow | 3.26.1

---

👤 Contributor

@Naveencodespeaks
Python Developer | Backend Engineer | Taipy Contributor

✨ Feature: ORM Support for SQL Data Nodes using SQLAlchemy

This PR adds ORM support for SQL Data Nodes using SQLAlchemy — enabling ORM-style CRUD operations and seamless integration with Taipy’s data layer.

🧩 Highlights

🧱 ORMSessionManager

Manages SQLAlchemy engine, sessions, and commits

Uses expire_on_commit=False to prevent DetachedInstanceError

🧠 SQLAlchemyTableDataNode

Full CRUD support (create, read, update, delete)

Integrates with DataNode protocol (read / write)

Returns detached model instances safe for use post-session

🧪 Unit Tests

Verified on SQLite with SQLAlchemy ORM

✅ 100% CRUD coverage, clean teardown

🧩 Dependencies
Dependency Version
🐍 Python 3.11.7
🧱 SQLAlchemy 2.0.35
🧠 Taipy Core Local dev version
🧪 pytest 8.3.3
🧰 marshmallow 3.26.1
✅ Tests
pytest tests/core/data/test_sql_table_data_node_orm.py -q
... [100%]
3 passed, 2 warnings in 0.39s

⚠️ Warnings due to Marshmallow v4 deprecation (not ORM-related).

🧾 Related Tickets

Related Issue: #2745 - ORM Support for SQL Data Nodes

Closes: #2745

⚙️ Reproduction
initialize_and_test_datanode:
description: "Example usage of SQLAlchemyTableDataNode."
code: |
from taipy.core.data.sql_table_data_node_orm import SQLAlchemyTableDataNode

node = SQLAlchemyTableDataNode(
    "user_node", User, "sqlite:///test.db", primary_keys=["id"]
)

node.create({"name": "Alice"})
node.read_all()
node.update({"name": "Alice"}, {"name": "Alicia"})
node.delete({"name": "Alicia"})

🔄 Backport
backporting:
targets:
- develop

☑️ Checklist
Status Description
✅ Meets acceptance criteria
🧪 Includes CRUD unit tests
🔄 E2E tests planned post-pipeline integration
📚 Docs update planned next PR
📌 Release notes entry confirmed
👤 Contributor

@Naveencodespeaks

Python Developer | Backend Engineer | Taipy Contributor

[JPluess]

hey thank you so much for your commit, we would need someone from the taipy maintainer to review the code, and complete the merger

[github-actions]

This PR has been labelled as "🥶Waiting for contributor" because it has been inactive for more than 14 days. If you would like to continue working on this PR, then please add new commit or another comment, otherwise this PR will be closed in 14 days. For more information please refer to the contributing guidelines.

[github-actions]

This PR has been labelled as "🥶Waiting for contributor" because it has been inactive for more than 14 days. If you would like to continue working on this PR, then please add new commit or another comment, otherwise this PR will be closed in 14 days. For more information please refer to the contributing guidelines.

[JPluess]

hey thank you so much for your commit, we would need someone from the taipy maintainer to review the code, and complete the merger