Files
wc-tier-and-package-prices/composer.json
magdev 2b2c06794b Release version 1.1.16 - Singleton pattern for settings page
Fixed persistent duplicate settings page rendering by implementing proper
singleton pattern for admin class and caching settings instance.

Fixes:
- Settings page still appearing twice despite v1.1.15 fix
- Multiple instantiation of WC_TPP_Admin class
- Duplicate creation of WC_TPP_Settings instances

Changes:
- Implemented singleton pattern for WC_TPP_Admin class
- Added private static $instance property with get_instance() method
- Made WC_TPP_Admin constructor private
- Added static $settings_instance property to cache settings page
- Modified add_settings_page() to check and reuse cached settings instance
- Changed instantiation from new WC_TPP_Admin() to WC_TPP_Admin::get_instance()

Technical Details:
- Ensures only one WC_TPP_Admin instance exists throughout plugin lifecycle
- Prevents duplicate filter registrations even if woocommerce_get_settings_pages called multiple times
- Settings page object created once and reused on subsequent filter calls
- Follows WordPress/WooCommerce best practices for singleton implementation

Updated Files:
- includes/class-wc-tpp-admin.php (singleton pattern implementation)
- wc-tier-and-package-prices.php (version 1.1.16)
- composer.json (version 1.1.16)
- CHANGELOG.md (v1.1.16 section)

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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2025-12-22 20:01:27 +01:00

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