Create Data Access Layer abstraction

[Karnak19]

Summary by CodeRabbit

• Documentation
  • Added comprehensive guide documenting the Data Access Layer pattern, including structure, CRUD functions, and usage examples
• Chores
  • Established module organization structure with barrel file for the data-access layer

_{✏️ Tip: You can customize this high-level summary in your review settings.}

[coderabbitai]

Walkthrough

These changes establish a Data Access Layer pattern by introducing comprehensive documentation and a barrel file structure for centralized entity query management.

Changes

Cohort / File(s)	Summary
Data Access Layer Structure src/shared/data-access/README.md, src/shared/data-access/index.ts	Introduces documentation for a Data Access Layer pattern with per-entity query files and CRUD function examples. Adds a barrel file with guidance for consolidating module exports.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

• The README is standard documentation describing an established pattern with no implementation risk
• The barrel file is a template structure with only commented examples, requiring minimal validation

Poem

🐰 A pattern takes shape, so neat and so clean,
Per-entity queries in files serene,
With CRUD at the ready and reuse in sight,
The data flows freely from left to right! ✨

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 'Create Data Access Layer abstraction' accurately summarizes the main change - introducing a Data Access Layer pattern with README documentation and index.ts barrel file.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch claude/create-data-access-layer-JyKlw

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[coderabbitai]

Actionable comments posted: 1

📜 Review details

Configuration used: defaults

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 059f497 and 9bea83b.

📒 Files selected for processing (2)

• src/shared/data-access/README.md (1 hunks)
• src/shared/data-access/index.ts (1 hunks)

🧰 Additional context used

🪛 markdownlint-cli2 (0.18.1)

src/shared/data-access/README.md

7-7: Fenced code blocks should have a language specified

(MD040, fenced-code-language)

🔇 Additional comments (2)

src/shared/data-access/index.ts (1)

1-13: Excellent documentation and clear structure for the barrel pattern.

The file provides clear guidance on how to add exports and demonstrates the expected pattern. The JSDoc and example make it easy for future contributors to understand how to extend this module.

src/shared/data-access/README.md (1)

1-166: Comprehensive and well-structured documentation for the Data Access Layer pattern.

The README clearly explains the pattern, provides practical examples with Drizzle ORM and Elysia, demonstrates real-world usage, and walks through adding a new entity. The benefits are well-articulated, and the examples align perfectly with the index.ts barrel structure. Developers will have a clear path for adoption.

[coderabbitai]

⚠️ Potential issue | 🟡 Minor

Add language specification to the fenced code block.

The directory structure block should specify a language for the fenced code block to comply with markdown standards.

🔎 Proposed fix

-```
+```text
 src/shared/data-access/
 ├── posts.ts          # Post-related queries
 ├── comments.ts       # Comment-related queries
 └── index.ts          # Export all functions
-```
+```

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change

	```
	src/shared/data-access/
	├── posts.ts # Post-related queries
	├── comments.ts # Comment-related queries
	└── index.ts # Export all functions
	```

🧰 Tools

🪛 markdownlint-cli2 (0.18.1)

7-7: Fenced code blocks should have a language specified

(MD040, fenced-code-language)

🤖 Prompt for AI Agents

In src/shared/data-access/README.md around lines 7 to 12, the fenced code block
showing the directory structure is missing a language specifier; update the
opening fence to include a language (e.g., change ``` to ```text) so the block
becomes a valid fenced code block with a language tag and keep the existing
content and closing fence unchanged.