Release version 1.1.1 - Cart quantity field hiding

Enhanced package quantity restriction enforcement by hiding the cart
quantity input field when restrictions are enabled. This prevents
customers from modifying quantities in the cart to bypass package
restrictions.

Changes:
- Added cart quantity input hiding for restricted products
- Implemented woocommerce_cart_item_quantity filter hook
- Created maybe_hide_cart_quantity_input() method in WC_TPP_Cart
- Fixed cart quantity bypass vulnerability
- Cart displays quantity as read-only text for restricted products

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

.claude/settings.local.json

@@ -8,7 +8,12 @@
       "Bash(composer init:*)",
       "Bash(composer install:*)",
       "Bash(composer update:*)",
-      "Bash(git add:*)"
+      "Bash(git add:*)",
+      "Bash(git commit -m \"$\\(cat <<''EOF''\nRelease version 1.1.0 - Package quantity restriction feature\n\nAdded comprehensive package quantity restriction functionality that allows\nlimiting product purchases to predefined package sizes only.\n\nFeatures:\n- Global setting to enable package quantity restrictions\n- Per-product override for quantity restrictions\n- Automatic hiding of quantity input field when restricted\n- Frontend validation with package selection UI\n- Server-side cart validation\n- User-friendly error messages\n- Complete translations for all supported languages\n\n🤖 Generated with [Claude Code]\\(https://claude.com/claude-code\\)\n\nCo-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>\nEOF\n\\)\")",
+      "Bash(git tag:*)",
+      "Bash(rsync:*)",
+      "Bash(zip -r:*)",
+      "Bash(cat:*)"
     ]
   }
 }

CHANGELOG.md

@@ -5,6 +5,24 @@ All notable changes to WooCommerce Tier and Package Prices will be documented in
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.1.1] - 2025-12-21
+
+### Added
+- Cart quantity field hiding when package restriction is enabled
+- Automatic read-only quantity display in cart for restricted products
+
+### Changed
+- Cart quantity input replaced with plain text when restrictions apply
+- Enhanced cart display to prevent quantity modification for restricted products
+
+### Fixed
+- Cart quantity bypass vulnerability for package-restricted products
+
+### Technical
+- Added `maybe_hide_cart_quantity_input()` method in WC_TPP_Cart class
+- Extended `woocommerce_cart_item_quantity` filter hook
+- CSS class `wc-tpp-cart-quantity` for styled quantity display
+
 ## [1.1.0] - 2025-12-21
 
 ### Added

composer.json

@@ -1,7 +1,7 @@
 {
     "name": "magdev/wc-tier-package-prices",
     "description": "WooCommerce plugin for tier pricing and package prices with Twig templates",
-    "version": "1.1.0",
+    "version": "1.1.1",
     "type": "wordpress-plugin",
     "license": "GPL-2.0-or-later",
     "authors": [

includes/class-wc-tpp-cart.php

@@ -14,6 +14,7 @@ class WC_TPP_Cart {
         add_filter('woocommerce_cart_item_price', array($this, 'display_cart_item_price'), 10, 3);
         add_filter('woocommerce_cart_item_subtotal', array($this, 'display_cart_item_subtotal'), 10, 3);
         add_filter('woocommerce_add_to_cart_validation', array($this, 'validate_package_quantity'), 10, 3);
+        add_filter('woocommerce_cart_item_quantity', array($this, 'maybe_hide_cart_quantity_input'), 10, 3);
     }
 
     public function apply_tier_package_pricing($cart) {
@@ -137,6 +138,24 @@ class WC_TPP_Cart {
 
         return $passed;
     }
+
+    public function maybe_hide_cart_quantity_input($product_quantity, $cart_item_key, $cart_item) {
+        $product_id = $cart_item['product_id'];
+
+        // Check if restriction is enabled globally or for this product
+        $global_restrict = get_option('wc_tpp_restrict_package_quantities', 'no') === 'yes';
+        $product_restrict = get_post_meta($product_id, '_wc_tpp_restrict_to_packages', true) === 'yes';
+
+        // Get packages for this product
+        $packages = get_post_meta($product_id, '_wc_tpp_packages', true);
+
+        // If restriction is enabled and packages exist, show quantity as text only
+        if (($global_restrict || $product_restrict) && !empty($packages)) {
+            return sprintf('<span class="wc-tpp-cart-quantity">%s</span>', $cart_item['quantity']);
+        }
+
+        return $product_quantity;
+    }
 }
 
 new WC_TPP_Cart();

languages/wc-tier-package-prices-de_CH_informal.po

@@ -3,7 +3,7 @@
 # This file is distributed under the GPL v2 or later.
 msgid ""
 msgstr ""
-"Project-Id-Version: WooCommerce Tier and Package Prices 1.1.0\n"
+"Project-Id-Version: WooCommerce Tier and Package Prices 1.1.1\n"
 "Report-Msgid-Bugs-To: https://src.bundespruefstelle.ch/wc-tier-package-prices\n"
 "POT-Creation-Date: 2025-12-21 00:00+0000\n"
 "PO-Revision-Date: 2025-12-21 00:00+0000\n"

languages/wc-tier-package-prices-de_DE.po

@@ -3,7 +3,7 @@
 # This file is distributed under the GPL v2 or later.
 msgid ""
 msgstr ""
-"Project-Id-Version: WooCommerce Tier and Package Prices 1.1.0\n"
+"Project-Id-Version: WooCommerce Tier and Package Prices 1.1.1\n"
 "Report-Msgid-Bugs-To: https://src.bundespruefstelle.ch/wc-tier-package-prices\n"
 "POT-Creation-Date: 2025-12-21 00:00+0000\n"
 "PO-Revision-Date: 2025-12-21 00:00+0000\n"

languages/wc-tier-package-prices-en_US.po

@@ -3,7 +3,7 @@
 # This file is distributed under the GPL v2 or later.
 msgid ""
 msgstr ""
-"Project-Id-Version: WooCommerce Tier and Package Prices 1.1.0\n"
+"Project-Id-Version: WooCommerce Tier and Package Prices 1.1.1\n"
 "Report-Msgid-Bugs-To: https://src.bundespruefstelle.ch/wc-tier-package-prices\n"
 "POT-Creation-Date: 2025-12-21 00:00+0000\n"
 "PO-Revision-Date: 2025-12-21 00:00+0000\n"

languages/wc-tier-package-prices.pot

@@ -2,7 +2,7 @@
 # This file is distributed under the GPL v2 or later.
 msgid ""
 msgstr ""
-"Project-Id-Version: WooCommerce Tier and Package Prices 1.1.0\n"
+"Project-Id-Version: WooCommerce Tier and Package Prices 1.1.1\n"
 "Report-Msgid-Bugs-To: https://src.bundespruefstelle.ch/wc-tier-package-prices\n"
 "POT-Creation-Date: 2025-12-21 00:00+0000\n"
 "MIME-Version: 1.0\n"

releases/RELEASE-INFO-1.1.0.md

@@ -0,0 +1,345 @@
+# WooCommerce Tier and Package Prices - Release 1.1.0
+
+**Release Date:** December 21, 2025
+**Version:** 1.1.0
+**Package Size:** 387 KB
+**Git Tag:** v1.1.0
+
+## Download
+
+**File:** `wc-tier-and-package-prices-1.1.0.zip`
+
+### Checksums
+
+**SHA256:**
+```
+da6b462f3dc297b282ed0da258b78fd9f2f82f3e76289c4c8fadd1ac9e02c55b
+```
+
+**MD5:**
+```
+ef68125c54b0c10f04ba82d48a98b4aa
+```
+
+## What's New in 1.1.0
+
+### Major Features
+- ✨ **Package Quantity Restriction** - NEW
+  - Limit product purchases to predefined package sizes only
+  - Perfect for bulk-only sales, sample packs, or fixed bundle quantities
+  - Global and per-product configuration options
+
+### New Settings
+- 🌍 **Global Restriction Setting**
+  - Enable quantity restrictions site-wide
+  - Located in: WooCommerce > Settings > Tier & Package Prices
+  - Description: "Limit quantities to defined package sizes only"
+
+- 📦 **Per-Product Restriction Setting**
+  - Override global setting on individual products
+  - Located in: Product Edit > Package Pricing section
+  - Checkbox: "Restrict to Package Quantities"
+
+### Frontend Enhancements
+- 🎨 **Enhanced Package Selection UI**
+  - Automatic quantity field hiding when restriction is enabled
+  - Clear notice: "Choose a package size below"
+  - Visual package selection with highlighted states
+  - Responsive package selection buttons
+
+- ✅ **Client-Side Validation**
+  - JavaScript prevents form submission without package selection
+  - Alert message guides users to select a package
+  - Real-time visual feedback on selection
+
+### Backend Validation
+- 🛡️ **Server-Side Cart Validation**
+  - Validates quantity matches defined packages
+  - Prevents manual quantity manipulation
+  - User-friendly error messages
+  - Example: "The quantity 15 is not available for Product Name. Please choose from the available package sizes: 10, 20, 50"
+
+### Technical Improvements
+- New method: `WC_TPP_Cart::validate_package_quantity()`
+- New method: `WC_TPP_Frontend::maybe_hide_quantity_input()`
+- Enhanced `woocommerce_add_to_cart_validation` filter integration
+- Added `wc-tpp-restricted-mode` CSS class
+- Added `wc-tpp-package-selectable` CSS class for styling
+- New product meta key: `_wc_tpp_restrict_to_packages`
+- New global option: `wc_tpp_restrict_package_quantities`
+
+### Translations
+- Added 7 new translatable strings
+- Updated all language files (en_US, de_DE, de_CH_informal)
+- All .mo files recompiled with new strings
+
+## Installation
+
+1. Download the ZIP file: `wc-tier-and-package-prices-1.1.0.zip`
+2. Log in to your WordPress admin panel
+3. Navigate to **Plugins > Add New > Upload Plugin**
+4. Choose the downloaded ZIP file
+5. Click **Install Now**
+6. After installation, click **Activate Plugin**
+7. Go to **WooCommerce > Settings > Tier & Package Prices** to configure
+
+### Upgrade from 1.0.x
+
+This is a **minor version** update with new features. No data migration needed.
+
+**Steps:**
+1. Deactivate the current version
+2. Upload and activate version 1.1.0
+3. All existing settings and data will be automatically preserved
+4. Review new restriction settings if desired
+
+### Upgrade from 1.0.2
+
+No breaking changes. Safe to upgrade directly. New restriction feature is disabled by default.
+
+### Requirements
+
+- **WordPress:** 6.0 or higher
+- **PHP:** 7.4 or higher
+- **WooCommerce:** 8.0 or higher
+
+## New Strings Translation Reference
+
+All new strings in this release:
+
+### Settings Page
+1. "Restrict to Package Quantities" - Checkbox label
+2. "Limit quantities to defined package sizes only" - Checkbox description
+3. "When enabled, customers can only purchase..." - Tooltip text
+
+### Product Meta Box
+4. "Restrict to Package Quantities" - Checkbox label (same as above)
+5. "Only allow quantities defined in packages above" - Tooltip text
+
+### Frontend Display
+6. "Choose a package size below" - User notice in restricted mode
+
+### Cart Validation
+7. "this product" - Fallback product name
+8. "The quantity %1$d is not available for %2$s..." - Error message template
+
+## Use Cases
+
+### Bulk-Only Sales
+Enable restriction globally to sell products only in bulk quantities.
+
+**Example:**
+- Package 1: 100 units at $500
+- Package 2: 250 units at $1,100
+- Package 3: 500 units at $2,000
+
+Customers can only purchase these exact quantities.
+
+### Sample Packs
+Create fixed sample packs with no custom quantities.
+
+**Example:**
+- Starter Pack: 10 items
+- Trial Pack: 25 items
+- Full Pack: 50 items
+
+### Promotional Bundles
+Offer promotional pricing only for specific bundle sizes.
+
+**Example:**
+- Holiday Bundle: 12 units (seasonal pricing)
+- Party Pack: 24 units (bulk discount)
+- Wholesale Bundle: 100 units (wholesale pricing)
+
+## Configuration Examples
+
+### Example 1: Site-Wide Restriction
+
+**Scenario:** All products should only be sold in packages
+
+**Configuration:**
+1. Go to WooCommerce > Settings > Tier & Package Prices
+2. Check "Restrict to Package Quantities"
+3. Save changes
+4. Configure package sizes for each product
+
+**Result:** All products with packages defined will enforce quantity restrictions
+
+### Example 2: Per-Product Restriction
+
+**Scenario:** Only specific products need quantity restrictions
+
+**Configuration:**
+1. Leave global setting unchecked
+2. Edit the specific product
+3. Scroll to Package Pricing section
+4. Check "Restrict to Package Quantities"
+5. Update product
+
+**Result:** Only that product enforces restrictions
+
+### Example 3: Mixed Approach
+
+**Scenario:** Most products are restricted, but some allow custom quantities
+
+**Configuration:**
+1. Enable global restriction
+2. For products that should allow custom quantities, simply don't define any packages
+3. Products without packages defined won't show restrictions
+
+## Feature Compatibility
+
+### Works With
+- ✅ WooCommerce 8.0 - 10.0
+- ✅ WordPress 6.0+
+- ✅ HPOS (High-Performance Order Storage)
+- ✅ All WooCommerce themes
+- ✅ Tier pricing (can use both features together)
+- ✅ Package pricing (required for restriction)
+- ✅ All pricing table display positions
+
+### Requirements for Restriction Feature
+- Product must have at least one package defined
+- Either global or per-product restriction must be enabled
+- Package pricing must be enabled in settings
+
+## Package Contents
+
+The installation package includes all files from version 1.0.2 plus:
+
+### Modified Files
+- `wc-tier-and-package-prices.php` - Version updated to 1.1.0
+- `composer.json` - Version updated to 1.1.0
+- `CHANGELOG.md` - Added v1.1.0 section
+- `includes/class-wc-tpp-settings.php` - Added restriction setting
+- `includes/class-wc-tpp-product-meta.php` - Added per-product checkbox
+- `includes/class-wc-tpp-frontend.php` - Added quantity hiding logic
+- `includes/class-wc-tpp-cart.php` - Added validation method
+- `assets/js/frontend.js` - Added restricted mode handling
+- `templates/frontend/package-pricing-display.twig` - Added restriction notice
+- `templates/frontend/pricing-table.twig` - Pass restriction flag
+- All translation files (.po/.mo) - Updated with new strings
+
+### Complete Directory Structure
+```
+wc-tier-and-package-prices/
+├── assets/
+│   ├── css/
+│   │   ├── admin.css
+│   │   └── frontend.css
+│   └── js/
+│       ├── admin.js
+│       └── frontend.js (UPDATED)
+├── includes/
+│   ├── class-wc-tpp-admin.php
+│   ├── class-wc-tpp-cart.php (UPDATED)
+│   ├── class-wc-tpp-frontend.php (UPDATED)
+│   ├── class-wc-tpp-product-meta.php (UPDATED)
+│   ├── class-wc-tpp-settings.php (UPDATED)
+│   └── class-wc-tpp-template-loader.php
+├── languages/ (ALL UPDATED)
+│   ├── wc-tier-package-prices-de_CH_informal.po/mo
+│   ├── wc-tier-package-prices-de_DE.po/mo
+│   ├── wc-tier-package-prices-en_US.po/mo
+│   └── wc-tier-package-prices.pot
+├── templates/
+│   ├── admin/
+│   │   ├── package-row.twig
+│   │   └── tier-row.twig
+│   └── frontend/
+│       ├── package-pricing-display.twig (UPDATED)
+│       ├── pricing-table.twig (UPDATED)
+│       └── tier-pricing-table.twig
+├── vendor/ (Twig v3.22.2)
+├── CHANGELOG.md (UPDATED)
+├── composer.json (UPDATED)
+└── wc-tier-and-package-prices.php (UPDATED)
+```
+
+## Features (Complete List)
+
+### Tier Pricing
+- ✅ Quantity-based discount tiers
+- ✅ Automatic price calculation
+- ✅ Volume discount display
+
+### Package Pricing
+- ✅ Fixed-price bundles
+- ✅ Custom package labels
+- ✅ Multiple package options per product
+- ✅ **NEW:** Quantity restriction to packages only
+
+### Admin Features
+- ✅ WooCommerce Settings integration
+- ✅ Easy-to-use product meta boxes
+- ✅ Configurable display positions
+- ✅ Native WooCommerce UI
+- ✅ **NEW:** Global restriction setting
+- ✅ **NEW:** Per-product restriction override
+
+### Frontend Features
+- ✅ Beautiful pricing tables (Twig templates)
+- ✅ Real-time cart updates
+- ✅ Responsive design
+- ✅ 3 languages supported
+- ✅ **NEW:** Package-only selection mode
+- ✅ **NEW:** Automatic quantity field hiding
+- ✅ **NEW:** Visual package selection
+
+### Validation & Security
+- ✅ **NEW:** Client-side JavaScript validation
+- ✅ **NEW:** Server-side cart validation
+- ✅ **NEW:** User-friendly error messages
+- ✅ WooCommerce HPOS compatible
+
+## Breaking Changes
+
+**None.** This release is fully backward compatible.
+
+The new restriction feature is disabled by default and must be explicitly enabled.
+
+## Migration Notes
+
+### From 1.0.2
+- No migration needed
+- New settings appear automatically in admin
+- Feature is disabled by default
+
+### Settings Location
+All settings remain in: **WooCommerce > Settings > Tier & Package Prices**
+
+### Data Preservation
+- All existing tier pricing data preserved
+- All existing package pricing data preserved
+- All product meta data preserved
+- No database changes required
+
+## Known Limitations
+
+### Current Version
+1. Restriction only works when packages are defined
+2. Cannot restrict to tier quantities (only packages)
+3. Restriction applies to entire product (no variation-level control)
+
+### Future Enhancements
+These features may be added in future versions:
+- Variation-level restriction control
+- Restrict to tier quantities option
+- Minimum/maximum package selection limits
+
+## Support
+
+- **Documentation:** See README.md and CHANGELOG.md
+- **Previous Release:** See RELEASE-INFO-1.0.2.md
+- **Issues:** https://src.bundespruefstelle.ch/wc-tier-package-prices/issues
+- **Author:** Marco Graetsch
+
+## License
+
+GPL v2 or later - https://www.gnu.org/licenses/gpl-2.0.html
+
+---
+
+**Production Ready:** This package includes optimized autoloader and no development dependencies.
+
+**What's Next:** Version 1.1.0 completes the package restriction feature set. Future versions may add variation-level controls and tier quantity restrictions.

releases/wc-tier-and-package-prices-1.1.0.zip.md5

@@ -0,0 +1 @@
+ef68125c54b0c10f04ba82d48a98b4aa  wc-tier-and-package-prices-1.1.0.zip

releases/wc-tier-and-package-prices-1.1.0.zip.sha256

@@ -0,0 +1 @@
+da6b462f3dc297b282ed0da258b78fd9f2f82f3e76289c4c8fadd1ac9e02c55b  wc-tier-and-package-prices-1.1.0.zip

wc-tier-and-package-prices.php

@@ -4,7 +4,7 @@
  * Plugin Name: WooCommerce Tier and Package Prices
  * Plugin URI: https://src.bundespruefstelle.ch/wc-tier-package-prices
  * Description: Add tier pricing and package prices to WooCommerce products with configurable quantities at fixed prices
- * Version: 1.1.0
+ * Version: 1.1.1
  * Author: Marco Graetsch
  * Author URI: https://src.bundespruefstelle.ch/magdev
  * Text Domain: wc-tier-package-prices
@@ -22,7 +22,7 @@ if (!defined('ABSPATH')) {
 }
 
 // Define plugin constants
-define('WC_TPP_VERSION', '1.1.0');
+define('WC_TPP_VERSION', '1.1.1');
 define('WC_TPP_PLUGIN_DIR', plugin_dir_path(__FILE__));
 define('WC_TPP_PLUGIN_URL', plugin_dir_url(__FILE__));
 define('WC_TPP_PLUGIN_BASENAME', plugin_basename(__FILE__));