feat: Add support for partialFilterExpression in MongoDB storage adapter

[mtrezza]

Pull Request

• Report security issues confidentially.
• Any contribution is under this license.

Issue

Add support for partialFilterExpression in MongoDB storage adapter.

Tasks

• Add tests
• Add changes to documentation (guides, repository pages, code comments)
• Add security check
• Add new Parse Error codes to Parse JS SDK

Summary by CodeRabbit

• New Features

  • Added support for creating partial MongoDB indexes with conditional filter expressions, enabling more efficient indexing strategies.

• Tests

  • Added test coverage to validate partial index creation and verification of index properties.

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[parseplatformorg]

✅ Snyk checks have passed. No issues have been found so far.

Status	Scan Engine	Critical	High	Medium	Low	Total (0)
✅	Open Source Security	0	0	0	0	0 issues

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 4164ab04-49b3-4834-a49e-c7a186ec0f68

📥 Commits

Reviewing files that changed from the base of the PR and between e71e030 and 640995e.

📒 Files selected for processing (2)

• spec/MongoStorageAdapter.spec.js
• src/Adapters/Storage/Mongo/MongoStorageAdapter.js

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📝 Walkthrough

Walkthrough

The changes add support for partial index expressions in MongoDB. The MongoStorageAdapter.ensureIndex method now accepts a partialFilterExpression option that is passed to MongoDB's index creation. A new test validates the feature by creating an index with this option and verifying it is stored correctly.

Changes

Cohort / File(s)	Summary
MongoDB Partial Index Support src/Adapters/Storage/Mongo/MongoStorageAdapter.js	Updated ensureIndex to accept and apply options.partialFilterExpression to MongoDB index options, enabling partial index creation.
Partial Index Tests spec/MongoStorageAdapter.spec.js	Added test validating ensureIndex correctly creates and stores partial indexes with partialFilterExpression and sparse options.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately summarizes the main change: adding support for partialFilterExpression in the MongoDB storage adapter, which matches the code changes.
Description check	✅ Passed	The PR description includes required sections (Issue and Tasks) with relevant information. The Issue describes the feature, and the author checked 'Add tests' as completed, though some non-critical documentation and security tasks are unchecked.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.53%. Comparing base (f759bda) to head (640995e).
⚠️ Report is 13 commits behind head on alpha.

Additional details and impacted files

@@            Coverage Diff             @@
##            alpha   #10346      +/-   ##
==========================================
- Coverage   92.54%   92.53%   -0.01%     
==========================================
  Files         192      192              
  Lines       16537    16538       +1     
  Branches      229      229              
==========================================
  Hits        15304    15304              
- Misses       1213     1214       +1     
  Partials       20       20              

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[parseplatformorg]

🎉 This change has been released in version 9.7.0-alpha.13

[parseplatformorg]

🎉 This change has been released in version 9.7.0