Code Review Checklist for MainWP Documentation

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• Formatting and Style
• WordPress Coding Standards
• Security Practices
• Error Handling
• MainWP-Specific Standards
• Performance Considerations
• Defensive Programming
• Documentation
• Compatibility
• Testing Considerations

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This checklist should be used when reviewing code examples in MainWP documentation to ensure consistency, security, and adherence to WordPress coding standards.

Formatting and Style

• Indentation: Uses 4 spaces per WordPress standards (not tabs)
• Brace Placement: Opening brace on same line as statement, closing brace on its own line
• Spacing: Space after commas, around operators, and after control structure keywords
• Line Length: Lines kept to a reasonable length (generally under 100 characters)
• Naming Conventions:
  • Functions and variables use snake_case
  • Classes use CamelCase
  • Constants use UPPERCASE_WITH_UNDERSCORES
• Commenting:
  • DocBlocks for functions, classes, and methods
  • Inline comments for complex logic
  • Comments are clear and add value (not just restating the code)

WordPress Coding Standards

• WordPress Functions: Uses WordPress functions instead of PHP equivalents where appropriate
  • wp_remote_get() instead of curl_exec()
  • sanitize_*() functions for sanitization
  • esc_*() functions for escaping output
  • wp_enqueue_script() and wp_enqueue_style() for assets
• Internationalization:
  • Text strings are wrapped in __(), _e(), or equivalent
  • Text domain is included in translation functions
  • Placeholders use sprintf() instead of string concatenation
• Capability Checks:
  • Uses current_user_can() or mainwp_current_user_can() before operations
  • Uses appropriate capabilities (manage_options instead of just read)
• Database Operations:
  • Uses $wpdb->prepare() for SQL queries with variables
  • Uses WordPress functions for common operations (get_option(), update_option(), etc.)

Security Practices

• Input Validation:
  • All user inputs are validated before use
  • Type checking is performed where appropriate
  • Boundary checking for numeric values
• Input Sanitization:
  • All user inputs are sanitized using appropriate functions
  • Uses context-appropriate sanitization functions
• Output Escaping:
  • All output is properly escaped using appropriate functions
  • Context-specific escaping functions are used
• Nonce Verification:
  • Nonces are created for forms and AJAX requests
  • Nonces are verified before processing data
• Capability Checks:
  • Appropriate capability checks before performing operations
• File Operations:
  • Secure file handling practices
  • Path traversal prevention

Error Handling

• Graceful Failures:
  • Functions return appropriate error values/objects
  • User-friendly error messages
• Logging:
  • Errors are logged when appropriate
  • Logging is conditional based on debug settings
• Exception Handling:
  • Try/catch blocks for operations that might throw exceptions
  • Proper exception handling and reporting

MainWP-Specific Standards

• MainWP Hooks:
  • Uses appropriate MainWP actions and filters
  • Hook naming follows MainWP conventions
• MainWP Functions:
  • Uses MainWP helper functions where available
  • Follows MainWP patterns for common operations
• Extension Registration:
  • Proper extension registration with MainWP
  • Correct callback structure

Performance Considerations

• Caching:
  • Implements caching for expensive operations
  • Uses transients or object cache appropriately
• Database Efficiency:
  • Minimizes database queries
  • Uses efficient query patterns
• Pagination:
  • Implements pagination for large datasets
• Resource Usage:
  • Avoids memory-intensive operations
  • Cleans up resources after use

Defensive Programming

• Null Checks:
  • Checks for null/undefined values before use
• Type Checking:
  • Verifies variable types before operations
• Error States:
  • Handles error states gracefully
  • Returns meaningful error messages
• Default Values:
  • Provides sensible defaults for parameters
  • Handles empty or invalid inputs gracefully

Documentation

• DocBlocks:
  • All functions, classes, and methods have DocBlocks
  • Parameters and return values are documented
  • Types are specified for parameters and return values
• Inline Comments:
  • Complex logic is explained with inline comments
  • Comments add value beyond what the code itself conveys
• Example Usage:
  • Examples show typical usage patterns
  • Examples include error handling

Compatibility

• PHP Version:
  • Code is compatible with PHP 7.0+ (MainWP's minimum requirement)
  • Avoids deprecated PHP functions
• WordPress Version:
  • Code is compatible with WordPress 5.0+ (MainWP's minimum requirement)
  • Avoids deprecated WordPress functions
• MainWP Version:
  • Code is compatible with current MainWP version
  • Notes any version-specific considerations

Testing Considerations

• Testability:
  • Code can be reasonably tested
  • Functions have clear inputs and outputs
• Edge Cases:
  • Handles edge cases appropriately
  • Considers empty inputs, large datasets, etc.
• Error Scenarios:
  • Handles error scenarios gracefully
  • Provides useful feedback for debugging