Fix database URL null check issue and add missing ENV setting #450
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WalkthroughThe changes explicitly assign default values of Changes
Estimated code review effort🎯 2 (Simple) | ⏱️ ~6 minutes Poem
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Actionable comments posted: 0
🧹 Nitpick comments (1)
apps/backend/app/core/config.py (1)
48-48: Consider removing the redundant hasattr check.Since the
ENVattribute is now always present in theSettingsclass (line 15), thehasattr(settings, "ENV")check is no longer necessary and can be simplified.- env = settings.ENV.lower() if hasattr(settings, "ENV") else "production" + env = settings.ENV.lower()
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📒 Files selected for processing (2)
apps/backend/app/core/config.py(1 hunks)apps/backend/app/core/database.py(1 hunks)
🔇 Additional comments (2)
apps/backend/app/core/config.py (1)
12-15: LGTM! Good fix for null safety.The explicit
Nonedefaults for the optional database URL settings and the addition of theENVfield with a sensible default resolve the null reference issues mentioned in the PR objectives. This ensures the application can start even without explicit environment configuration.apps/backend/app/core/database.py (1)
23-24: Excellent null safety implementation.The fallback mechanism using the
oroperator elegantly solves the originalAttributeErrorissue. Whensettings.SYNC_DATABASE_URLorsettings.ASYNC_DATABASE_URLareNone(as set in config.py), these will default to appropriate SQLite connection strings, ensuring the.startswith("sqlite")call on line 28 always operates on a valid string.The SQLite fallback URLs are correctly formatted:
sqlite:///./app.dbfor synchronous operationssqlite+aiosqlite:///./app.dbfor asynchronous operations
Fix: Critical Database URL Null Reference Bug
Problem
The application was experiencing a critical startup failure due to a null reference bug in the database configuration. Specifically:
Database URL Null Check Issue: In
apps/backend/app/core/database.py, the code attempted to call.startswith("sqlite")on potentiallyNonevalues (SYNC_DATABASE_URLandASYNC_DATABASE_URL) without proper null checking, causingAttributeErrorat application startup.Missing ENV Configuration: The
setup_logging()function referenced a non-existentENVattribute in the Settings class, which could lead to improper logging configuration.Solution
ENV: str = "production"to the Settings class with a sensible defaultChanges Made
apps/backend/app/core/config.py:Nonevalues for optional database URL settingsENVattribute with "production" defaultapps/backend/app/core/database.py:oroperatorImpact
Testing
The fix ensures the application can start successfully in environments where database URLs are not explicitly configured, while maintaining compatibility with existing setups.
Type of Change
Summary by CodeRabbit
New Features
Improvements