magdev/wc-tier-and-package-prices
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Release version 1.0.1

Browse Source 
- Add Twig template engine integration
- Migrate all templates to Twig format
- Add German (Switzerland, Informal) translation
- Improve template organization and security
- Add Composer dependency management
- Create comprehensive changelog
This commit is contained in:
Marco Grätsch
2025-12-21 04:56:50 +01:00
commit 7273c9cde7
32 changed files with 2987 additions and 0 deletions
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48
includes/class-wc-tpp-admin.php Normal file
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<?php
/**
* Admin settings and configuration
*/
if (!defined('ABSPATH')) {
exit;
}
class WC_TPP_Admin {
public function __construct() {
add_action('admin_menu', array($this, 'add_admin_menu'));
add_action('admin_init', array($this, 'register_settings'));
add_action('admin_enqueue_scripts', array($this, 'enqueue_admin_scripts'));
}
public function add_admin_menu() {
add_submenu_page(
'woocommerce',
__('Tier & Package Prices', 'wc-tier-package-prices'),
__('Tier & Package Prices', 'wc-tier-package-prices'),
'manage_woocommerce',
'wc-tier-package-prices',
array($this, 'settings_page')
);
}
public function register_settings() {
register_setting('wc_tpp_settings', 'wc_tpp_enable_tier_pricing');
register_setting('wc_tpp_settings', 'wc_tpp_enable_package_pricing');
register_setting('wc_tpp_settings', 'wc_tpp_display_table');
register_setting('wc_tpp_settings', 'wc_tpp_display_position');
}
public function enqueue_admin_scripts($hook) {
if ('woocommerce_page_wc-tier-package-prices' === $hook || 'post.php' === $hook || 'post-new.php' === $hook) {
wp_enqueue_style('wc-tpp-admin', WC_TPP_PLUGIN_URL . 'assets/css/admin.css', array(), WC_TPP_VERSION);
wp_enqueue_script('wc-tpp-admin', WC_TPP_PLUGIN_URL . 'assets/js/admin.js', array('jquery'), WC_TPP_VERSION, true);
}
}
public function settings_page() {
WC_TPP_Template_Loader::get_instance()->display('admin/settings-page.twig');
}
}
new WC_TPP_Admin();

94
includes/class-wc-tpp-cart.php Normal file
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<?php
/**
* Cart price calculation for tier and package pricing
*/
if (!defined('ABSPATH')) {
exit;
}
class WC_TPP_Cart {
public function __construct() {
add_action('woocommerce_before_calculate_totals', array($this, 'apply_tier_package_pricing'), 10, 1);
add_filter('woocommerce_cart_item_price', array($this, 'display_cart_item_price'), 10, 3);
add_filter('woocommerce_cart_item_subtotal', array($this, 'display_cart_item_subtotal'), 10, 3);
}
public function apply_tier_package_pricing($cart) {
if (is_admin() && !defined('DOING_AJAX')) {
return;
}
// Prevent infinite loops
if (did_action('woocommerce_before_calculate_totals') >= 2) {
return;
}
// Check if cart object is valid
if (!$cart || !is_a($cart, 'WC_Cart')) {
return;
}
foreach ($cart->get_cart() as $cart_item_key => $cart_item) {
$product_id = $cart_item['product_id'];
$quantity = $cart_item['quantity'];
$product = $cart_item['data'];
// Validate product object
if (!$product || !is_a($product, 'WC_Product')) {
continue;
}
// Check for exact package match first
$package_price = null;
if (get_option('wc_tpp_enable_package_pricing') === 'yes') {
$package_price = WC_TPP_Frontend::get_package_price($product_id, $quantity);
}
if ($package_price !== null) {
// Apply package pricing (total price divided by quantity)
$unit_price = $package_price / $quantity;
$product->set_price($unit_price);
// Store pricing information in cart item for display
WC()->cart->cart_contents[$cart_item_key]['wc_tpp_pricing_type'] = 'package';
WC()->cart->cart_contents[$cart_item_key]['wc_tpp_total_price'] = $package_price;
} else {
// Apply tier pricing if no package match
if (get_option('wc_tpp_enable_tier_pricing') === 'yes') {
$tier_price = WC_TPP_Frontend::get_tier_price($product_id, $quantity);
if ($tier_price !== null) {
$product->set_price($tier_price);
// Store pricing information in cart item for display
WC()->cart->cart_contents[$cart_item_key]['wc_tpp_pricing_type'] = 'tier';
WC()->cart->cart_contents[$cart_item_key]['wc_tpp_unit_price'] = $tier_price;
}
}
}
}
}
public function display_cart_item_price($price, $cart_item, $cart_item_key) {
if (isset($cart_item['wc_tpp_pricing_type'])) {
if ($cart_item['wc_tpp_pricing_type'] === 'package') {
$total_price = isset($cart_item['wc_tpp_total_price']) ? $cart_item['wc_tpp_total_price'] : $cart_item['line_total'];
$unit_price = $total_price / $cart_item['quantity'];
return wc_price($unit_price) . ' <small class="wc-tpp-notice">(' . __('Package price', 'wc-tier-package-prices') . ')</small>';
} elseif ($cart_item['wc_tpp_pricing_type'] === 'tier') {
$unit_price = isset($cart_item['wc_tpp_unit_price']) ? $cart_item['wc_tpp_unit_price'] : $cart_item['data']->get_price();
return wc_price($unit_price) . ' <small class="wc-tpp-notice">(' . __('Volume discount', 'wc-tier-package-prices') . ')</small>';
}
}
return $price;
}
public function display_cart_item_subtotal($subtotal, $cart_item, $cart_item_key) {
if (isset($cart_item['wc_tpp_pricing_type']) && $cart_item['wc_tpp_pricing_type'] === 'package') {
$total_price = isset($cart_item['wc_tpp_total_price']) ? $cart_item['wc_tpp_total_price'] : $cart_item['line_total'];
return wc_price($total_price);
}
return $subtotal;
}
}
new WC_TPP_Cart();

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includes/class-wc-tpp-frontend.php Normal file
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<?php
/**
* Frontend display for tier and package pricing
*/
if (!defined('ABSPATH')) {
exit;
}
class WC_TPP_Frontend {
public function __construct() {
add_action('wp_enqueue_scripts', array($this, 'enqueue_scripts'));
add_action('woocommerce_before_add_to_cart_button', array($this, 'display_pricing_table_before'), 20);
add_action('woocommerce_after_add_to_cart_button', array($this, 'display_pricing_table_after'), 10);
add_action('woocommerce_single_product_summary', array($this, 'display_pricing_table_after_price'), 15);
}
public function enqueue_scripts() {
if (is_product()) {
wp_enqueue_style('wc-tpp-frontend', WC_TPP_PLUGIN_URL . 'assets/css/frontend.css', array(), WC_TPP_VERSION);
wp_enqueue_script('wc-tpp-frontend', WC_TPP_PLUGIN_URL . 'assets/js/frontend.js', array('jquery'), WC_TPP_VERSION, true);
// Localize script with currency settings
wp_localize_script('wc-tpp-frontend', 'wcTppData', array(
'currency_symbol' => esc_js(get_woocommerce_currency_symbol()),
'currency_position' => esc_js(get_option('woocommerce_currency_pos', 'left')),
'price_decimals' => absint(wc_get_price_decimals()),
'price_decimal_separator' => esc_js(wc_get_price_decimal_separator()),
'price_thousand_separator' => esc_js(wc_get_price_thousand_separator())
));
}
}
public function display_pricing_table_before() {
if (get_option('wc_tpp_display_position') === 'before_add_to_cart') {
$this->display_pricing_table();
}
}
public function display_pricing_table_after() {
if (get_option('wc_tpp_display_position') === 'after_add_to_cart') {
$this->display_pricing_table();
}
}
public function display_pricing_table_after_price() {
if (get_option('wc_tpp_display_position') === 'after_price') {
$this->display_pricing_table();
}
}
public function display_pricing_table() {
global $product;
if (!$product || !is_a($product, 'WC_Product') || get_option('wc_tpp_display_table') !== 'yes') {
return;
}
$product_id = $product->get_id();
$tiers = get_post_meta($product_id, '_wc_tpp_tiers', true);
$packages = get_post_meta($product_id, '_wc_tpp_packages', true);
if (empty($tiers) && empty($packages)) {
return;
}
WC_TPP_Template_Loader::get_instance()->display('frontend/pricing-table.twig', array(
'product' => $product,
'tiers' => $tiers,
'packages' => $packages
));
}
public static function get_tier_price($product_id, $quantity) {
$tiers = get_post_meta($product_id, '_wc_tpp_tiers', true);
if (empty($tiers) || !is_array($tiers)) {
return null;
}
$applicable_price = null;
foreach ($tiers as $tier) {
if ($quantity >= $tier['min_qty']) {
$applicable_price = $tier['price'];
}
}
return $applicable_price;
}
public static function get_package_price($product_id, $quantity) {
$packages = get_post_meta($product_id, '_wc_tpp_packages', true);
if (empty($packages) || !is_array($packages)) {
return null;
}
foreach ($packages as $package) {
if ($quantity == $package['qty']) {
return $package['price'];
}
}
return null;
}
}
new WC_TPP_Frontend();

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includes/class-wc-tpp-product-meta.php Normal file
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<?php
/**
* Product meta boxes for tier and package pricing
*/
if (!defined('ABSPATH')) {
exit;
}
class WC_TPP_Product_Meta {
public function __construct() {
add_action('woocommerce_product_options_pricing', array($this, 'add_tier_pricing_fields'));
add_action('woocommerce_product_options_pricing', array($this, 'add_package_pricing_fields'));
add_action('woocommerce_process_product_meta', array($this, 'save_tier_package_fields'));
}
public function add_tier_pricing_fields() {
global $post;
?>
<div class="options_group wc-tpp-tier-pricing">
<p class="form-field">
<label><?php _e('Tier Pricing', 'wc-tier-package-prices'); ?></label>
<span class="description"><?php _e('Set quantity-based pricing tiers. Customers get discounted prices when buying in larger quantities.', 'wc-tier-package-prices'); ?></span>
</p>
<div class="wc-tpp-tiers-container">
<?php
$tiers = get_post_meta($post->ID, '_wc_tpp_tiers', true);
if (!is_array($tiers)) {
$tiers = array();
}
foreach ($tiers as $index => $tier) {
$this->render_tier_row($index, $tier);
}
?>
</div>
<p class="form-field">
<button type="button" class="button wc-tpp-add-tier"><?php _e('Add Tier', 'wc-tier-package-prices'); ?></button>
</p>
</div>
<?php
}
public function add_package_pricing_fields() {
global $post;
?>
<div class="options_group wc-tpp-package-pricing">
<p class="form-field">
<label><?php _e('Package Pricing', 'wc-tier-package-prices'); ?></label>
<span class="description"><?php _e('Set fixed-price packages with specific quantities. For example: 10 pieces for $50, 25 pieces for $100.', 'wc-tier-package-prices'); ?></span>
</p>
<div class="wc-tpp-packages-container">
<?php
$packages = get_post_meta($post->ID, '_wc_tpp_packages', true);
if (!is_array($packages)) {
$packages = array();
}
foreach ($packages as $index => $package) {
$this->render_package_row($index, $package);
}
?>
</div>
<p class="form-field">
<button type="button" class="button wc-tpp-add-package"><?php _e('Add Package', 'wc-tier-package-prices'); ?></button>
</p>
</div>
<script type="text/html" id="wc-tpp-tier-row-template">
<?php $this->render_tier_row('{{INDEX}}', array('min_qty' => '', 'price' => '')); ?>
</script>
<script type="text/html" id="wc-tpp-package-row-template">
<?php $this->render_package_row('{{INDEX}}', array('qty' => '', 'price' => '', 'label' => '')); ?>
</script>
<?php
}
private function render_tier_row($index, $tier) {
WC_TPP_Template_Loader::get_instance()->display('admin/tier-row.twig', array(
'index' => $index,
'tier' => $tier
));
}
private function render_package_row($index, $package) {
WC_TPP_Template_Loader::get_instance()->display('admin/package-row.twig', array(
'index' => $index,
'package' => $package
));
}
public function save_tier_package_fields($post_id) {
// Verify nonce for security
if (!isset($_POST['woocommerce_meta_nonce']) || !wp_verify_nonce($_POST['woocommerce_meta_nonce'], 'woocommerce_save_data')) {
return;
}
// Check user permissions
if (!current_user_can('edit_post', $post_id)) {
return;
}
// Avoid auto-save
if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) {
return;
}
// Save tier pricing
if (isset($_POST['_wc_tpp_tiers'])) {
$tiers = array();
foreach ($_POST['_wc_tpp_tiers'] as $tier) {
if (!empty($tier['min_qty']) && !empty($tier['price'])) {
$tiers[] = array(
'min_qty' => absint($tier['min_qty']),
'price' => wc_format_decimal($tier['price'])
);
}
}
// Sort by minimum quantity
usort($tiers, function($a, $b) {
return $a['min_qty'] - $b['min_qty'];
});
update_post_meta($post_id, '_wc_tpp_tiers', $tiers);
} else {
delete_post_meta($post_id, '_wc_tpp_tiers');
}
// Save package pricing
if (isset($_POST['_wc_tpp_packages'])) {
$packages = array();
foreach ($_POST['_wc_tpp_packages'] as $package) {
if (!empty($package['qty']) && !empty($package['price'])) {
$packages[] = array(
'qty' => absint($package['qty']),
'price' => wc_format_decimal($package['price']),
'label' => sanitize_text_field($package['label'])
);
}
}
// Sort by quantity
usort($packages, function($a, $b) {
return $a['qty'] - $b['qty'];
});
update_post_meta($post_id, '_wc_tpp_packages', $packages);
} else {
delete_post_meta($post_id, '_wc_tpp_packages');
}
}
}
new WC_TPP_Product_Meta();

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includes/class-wc-tpp-template-loader.php Normal file
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<?php
/**
* Twig Template Loader for WC Tier Package Prices
*
* @package WC_Tier_Package_Prices
*/
if (!defined('ABSPATH')) {
exit;
}
use Twig\Environment;
use Twig\Loader\FilesystemLoader;
use Twig\TwigFilter;
use Twig\TwigFunction;
class WC_TPP_Template_Loader {
private static $instance = null;
private $twig;
public static function get_instance() {
if (null === self::$instance) {
self::$instance = new self();
}
return self::$instance;
}
private function __construct() {
$this->init_twig();
}
private function init_twig() {
$loader = new FilesystemLoader(WC_TPP_PLUGIN_DIR . 'templates');
$this->twig = new Environment($loader, array(
'cache' => WP_DEBUG ? false : WC_TPP_PLUGIN_DIR . 'templates/cache',
'auto_reload' => true,
'autoescape' => 'html',
));
// Add WordPress translation filter
$this->twig->addFilter(new TwigFilter('__', function ($string, $domain = 'wc-tier-package-prices') {
return __($string, $domain);
}));
$this->twig->addFilter(new TwigFilter('_e', function ($string, $domain = 'wc-tier-package-prices') {
_e($string, $domain);
}));
$this->twig->addFilter(new TwigFilter('esc_html', 'esc_html'));
$this->twig->addFilter(new TwigFilter('esc_attr', 'esc_attr'));
$this->twig->addFilter(new TwigFilter('esc_url', 'esc_url'));
// Add WordPress functions
$this->twig->addFunction(new TwigFunction('get_option', 'get_option'));
$this->twig->addFunction(new TwigFunction('checked', function($checked, $current = true, $echo = false) {
return checked($checked, $current, $echo);
}));
$this->twig->addFunction(new TwigFunction('selected', function($selected, $current = true, $echo = false) {
return selected($selected, $current, $echo);
}));
$this->twig->addFunction(new TwigFunction('settings_fields', function($option_group) {
settings_fields($option_group);
}));
$this->twig->addFunction(new TwigFunction('submit_button', function($text = null) {
submit_button($text);
}));
$this->twig->addFunction(new TwigFunction('get_admin_page_title', 'get_admin_page_title'));
$this->twig->addFunction(new TwigFunction('wc_price', 'wc_price'));
}
/**
* Render a Twig template
*
* @param string $template Template file name (e.g., 'admin/settings-page.twig')
* @param array $context Variables to pass to the template
* @return string Rendered template
*/
public function render($template, $context = array()) {
try {
return $this->twig->render($template, $context);
} catch (Exception $e) {
if (WP_DEBUG) {
return sprintf(
'<div class="error"><p>Twig Error: %s</p></div>',
esc_html($e->getMessage())
);
}
return '';
}
}
/**
* Display a Twig template
*
* @param string $template Template file name
* @param array $context Variables to pass to the template
*/
public function display($template, $context = array()) {
echo $this->render($template, $context);
}
}