fix: sanitize slugifyLikeString before slugifying

[subhu339]

Proposed changes

Fix slugifyLikeString to properly sanitize strings before slugifying, preventing special characters from breaking functionality.

Issue(s)

No linked issue (or link the issue if one exists).

How to test or reproduce

Call slugifyLikeString with a string containing special or non-Latin characters, e.g., '測試123' → output should be 'ce-shi-123'.

Screenshots

Types of changes

Bugfix (non-breaking change which fixes an issue)

• Bugfix (non-breaking change which fixes an issue)
• Improvement (non-breaking change which improves a current function)
• New feature (non-breaking change which adds functionality)
• Documentation update (if none of the other choices apply)

Checklist

I have read the CONTRIBUTING doc

I have signed the CLA

Lint and unit tests pass locally with my changes

• I have read the CONTRIBUTING doc
• I have signed the CLA
• Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works (if applicable)
• I have added necessary documentation (if applicable)
• Any dependent changes have been merged and published in downstream modules

Further comments

Summary by CodeRabbit

• Bug Fixes
  • Improved input sanitization to ensure special characters are properly handled in text processing operations, enhancing data consistency and reliability.

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✅ subhu339
❌ Yahia786
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[coderabbitai]

Walkthrough

The slugifyLikeString function in app/lib/database/utils.ts was refactored to explicitly sanitize input before slugification. The function now creates an intermediate sanitized string by replacing non-alphanumeric characters with underscores using likeStringRegex, then applies slugify to the result, improving code clarity without changing the method signature or return type.

Changes

Cohort / File(s)	Summary
Input Sanitization Refactoring app/lib/database/utils.ts	Updated slugifyLikeString function to add explicit sanitization step before slugification. Introduced intermediate variables (sanitized, slugified) for clarity. Sanitization now explicitly replaces non-letter/non-digit characters using likeStringRegex before applying slugify. Preserves early return for falsy input.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

• Single-file change affecting one function with straightforward refactoring logic
• Verify that likeStringRegex pattern correctly captures intended sanitization intent
• Confirm that the intermediate sanitization step produces expected output before and after slugification

Poem

🐰 A rabbit's delight, when code flows clear,
Sanitizing first, no need to fear!
Underscores dance where odd chars hide,
Then slugify with confidence, side by side! ✨

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: sanitizing input in slugifyLikeString before slugification, which aligns with the core purpose of the modification.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing touches

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🧪 Generate unit tests (beta)

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

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[coderabbitai]

Actionable comments posted: 0

🧹 Nitpick comments (1)

app/lib/database/utils.ts (1)

11-14: Sanitization step is necessary—keep as-is; add explicit return type annotation.

The sanitization step is not redundant. The likeStringRegex replaces non-alphanumeric characters with underscores, which serve as separators for the slugify function. These underscores are then converted to hyphens during slugification. This behavior is intentional and verified by the test suite: the Chinese example '測試123' correctly produces 'ce-shi-123' (with hyphens between transliterated characters) rather than 'ceshi123'. Without this sanitization, transliterated non-Latin characters would run together without separation.

Add explicit return type annotation for type safety:

-export const slugifyLikeString = (str?: string) => {
+export const slugifyLikeString = (str?: string): string => {
     if (!str) return '';
     const sanitized = str.replace(likeStringRegex, '_');
     const slugified = slugify(sanitized);
     return slugified;
 };

📜 Review details

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📥 Commits

Reviewing files that changed from the base of the PR and between bddcf52 and 6fa9143.

📒 Files selected for processing (1)

• app/lib/database/utils.ts (1 hunks)