Remove repeated-metas.php and move class-meta-renderer.php

[acicovic]

Description

This PR removes /views/repeated-metas.php and puts the relevant code in class-metadata-renderer.php, which has been moved from /src/U/I to /src/Metadata/. This is semantically more correct, since the class doesn't render any UI, but injects (renders) the metadata in posts.

Some adjustments were also introduced to improve code clarity, and address some PHPStan warnings. We've also removed the 'author' key from $parsely_metas, since it was weird and seemed like forgotten code.

Motivation and context

• Fixes Consider moving Metadata_Renderer into Metadata directory #1942.
• Partly addresses Consider moving/removing views directory #1941.

How has this been tested?

• Because of the removal of the 'author' key, changes were tested manually, including testing with the Co-Authors Plus plugin in order to verify that the parsely-author meta behaved as expected (single and multi-author support in metas).
• Existing automated testing passes.

Summary by CodeRabbit

• New Features

  • Enhanced metadata rendering for improved SEO with dynamic generation of <meta> tags.
  • Added support for author metadata output.

• Bug Fixes

  • Adjusted handling of optional metadata fields to prevent null values.

• Refactor

  • Improved clarity and maintainability of the metadata rendering logic by consolidating methods and removing unnecessary files.

[coderabbitai]

📝 Walkthrough

Walkthrough

The changes involve significant modifications to the Metadata_Renderer class in class-metadata-renderer.php. Key updates include the removal of the PARSELY_FILE constant import, elimination of a view file for rendering repeated meta tags, and enhancements to the render_metadata method for better handling of metadata fields and dynamic output of <meta> tags. The file responsible for generating repeated meta tags has been deleted, and the overall structure of the render_metadata method has been refined for clarity.

Changes

File	Change Summary
src/Metadata/class-metadata-renderer.php	Removed PARSELY_FILE import, eliminated view file for repeated metas, updated render_metadata method for better handling of tags and optional fields, enhanced dynamic output of metadata, and refined method structure.
views/repeated-metas.php	Deleted the file responsible for generating repeated meta tags for Parse.ly integration.

Assessment against linked issues

Objective	Addressed	Explanation
Consider moving Metadata_Renderer into Metadata directory (#1942)	❌	The class has not been moved to the suggested directory.

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📜 Recent review details

Configuration used: .coderabbit.yaml
Review profile: CHILL

📥 Commits

Files that changed from the base of the PR and between b490e5b and 82f57cd.

📒 Files selected for processing (2)

• src/Metadata/class-metadata-renderer.php (1 hunks)
• views/repeated-metas.php (0 hunks)

💤 Files with no reviewable changes (1)

• views/repeated-metas.php

🧰 Additional context used

📓 Path-based instructions (1)

src/Metadata/class-metadata-renderer.php (1)

Pattern **/*.{html,php}: "Perform a detailed review of the provided code with following key aspects in mind:

• Review the HTML and PHP code to ensure it is well-structured and adheres to best practices.
• Ensure the code follows WordPress coding standards and is well-documented.
• Confirm the code is secure and free from vulnerabilities.
• Optimize the code for performance, removing any unnecessary elements.
• Validate comments for accuracy, currency, and adherence to WordPress coding standards.
• Ensure each line comment concludes with a period.
• Verify code compatibility with the latest version of WordPress, avoiding deprecated functions or features."

🔇 Additional comments (4)

src/Metadata/class-metadata-renderer.php (4)

116-116: Keywords are properly initialized and processed

The initialization of $tags ensures that the tags meta is set to an empty string by default. The subsequent check and processing of $metadata['keywords'] correctly handle the case when keywords are present as an array by imploding them into a comma-separated string.

Also applies to: 120-121

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125-125: Optional metadata fields are appropriately handled with default values

Using the null coalescing operator ?? '' for fields like 'link', 'image-url', 'pub-date', and 'section' ensures that these metadata fields default to empty strings when they are not set. This approach prevents potential notices or warnings due to undefined indices.

Also applies to: 127-130

---

134-142: Meta tags are generated with proper escaping

The loop that outputs the <meta> tags correctly uses esc_attr() to escape both the meta key and value. This ensures that the generated meta tags are secure and free from potential injection vulnerabilities.

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149-156: Author meta tags are correctly output with proper handling

The code appropriately handles multiple authors by extracting their names and filtering out empty or non-string values. The use of esc_attr() when outputting each author name ensures that the meta tags are securely generated.

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