fix: move image_util_parse_metadata import to global scope

[moksha-hub]

Fixes #1108

Moved the image_util_parse_metadata import from inside loops to the top of the file (global scope). While Python caches module imports, importing inside tight loops is considered bad practice and adds unnecessary overhead when iterating over thousands of images.

Changes:

• Added import at line 10 with other app-specific imports
• Removed redundant import inside db_get_all_images() loop (was line 179)
• Removed redundant import inside db_get_untagged_images() loop (was line 245)

Summary by CodeRabbit

• Refactor
  • Internal code organization improvements for better maintainability with no end-user impact.

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[coderabbitai]

📝 Walkthrough

Walkthrough

Moved the import of image_util_parse_metadata from inside functions to module-level scope in backend/app/database/images.py. This eliminates repeated import operations that were occurring within tight loops, addressing a performance and code quality concern.

Changes

Cohort / File(s)	Summary
Import Refactoring backend/app/database/images.py	Relocated image_util_parse_metadata import from inside db_get_all_images and db_get_untagged_images functions to module-level, eliminating redundant imports in loops while preserving all existing functionality.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 A hop and a bound, the imports take flight,
No loops within loops causing delays in the night,
At the top of the file, where they belong with delight,
One little change makes the code flow just right! 🌟

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and accurately summarizes the main change: moving an import to global scope.
Linked Issues check	✅ Passed	The pull request fully addresses issue #1108 by moving the image_util_parse_metadata import from inside loops to global scope.
Out of Scope Changes check	✅ Passed	All changes are directly related to the stated objective of moving the import to global scope; no out-of-scope modifications detected.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

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✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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[aniket866]

@moksha-hub refer this message: #1115 (comment)