Uniquely constrained users table

[avishniakov]

Describe changes

I fixed how we ensure that no duplicates are passed to the DB level for UserSchema.

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Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
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Summary by CodeRabbit

• New Features
  • Implemented a unique constraint for user names to ensure each user is distinct, enhancing data integrity.
• Refactor
  • Improved transaction management with better exception handling for user creation and updates.

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Walkthrough

The update introduces a unique constraint to the user table, ensuring that each combination of user name and service account status is unique. It modifies the schema to include this constraint and enhances the transaction management in the SQL store. Exception handling is improved with specific attention to IntegrityError, streamlining the process of checking for existing entities before their creation.

Changes

File Path	Change Summary
.../migrations/versions/72675226b2de_unique_users.py	Adds a migration script for unique constraint on user table.
.../zen_stores/schemas/user_schemas.py	Introduces UniqueConstraint in UserSchema.
.../zen_stores/sql_zen_store.py	Enhances transaction management and exception handling for entity creation.

🐇✨
To the database, we hop and bound,
With unique users, no duplicates found.
Try and catch, we gracefully manage,
Ensuring integrity, with no damage.
So here's to changes, both big and small,
May our code run smoothly, bugs none at all.
🌟🐾

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[avishniakov]

@coderabbitai review

[coderabbitai]

Review Status

Actionable comments generated: 4

Configuration used: .coderabbit.yaml

Commits

Files that changed from the base of the PR and between 357f94c and 135c2e0.

Files selected for processing (3)

• src/zenml/zen_stores/migrations/versions/72675226b2de_unique_users.py (1 hunks)
• src/zenml/zen_stores/schemas/user_schemas.py (2 hunks)
• src/zenml/zen_stores/sql_zen_store.py (2 hunks)

Additional comments: 1

src/zenml/zen_stores/schemas/user_schemas.py (1)

• 68-68: The addition of the UniqueConstraint on the "name" and "is_service_account" columns in the UserSchema class is correctly implemented and aligns with the PR's objectives to prevent duplicate user entries. This change complements the database-level constraint added by the migration script and is a good practice for enforcing data integrity at both the ORM and database levels.

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Quickstart template updates in examples/quickstart have been pushed.

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Quickstart template updates in examples/quickstart have been pushed.

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NLP template updates in examples/e2e_nlp have been pushed.