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product-bundles-min-max-items-for-woocommerce.php
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product-bundles-min-max-items-for-woocommerce.php
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<?php
/**
* Plugin Name: Product Bundles - Min/Max Items
* Plugin URI: https://docs.woocommerce.com/document/bundles/bundles-extensions/#min-max-items
* Description: Free mini-extension for WooCommerce Product Bundles that allows you to control the minimum or maximum quantity of bundled products that customers must choose in order to purchase a Product Bundle.
* Version: 1.4.3
* Author: SomewhereWarm
* Author URI: https://somewherewarm.com/
*
* Text Domain: woocommerce-product-bundles-min-max-items
* Domain Path: /languages/
*
* Requires at least: 4.4
* Tested up to: 5.5
* Requires PHP: 5.6
*
* WC requires at least: 3.1
* WC tested up to: 4.5
*
* Copyright: © 2017-2020 SomewhereWarm SMPC.
* License: GNU General Public License v3.0
* License URI: http://www.gnu.org/licenses/gpl-3.0.html
*/
// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
class WC_PB_Min_Max_Items {
/**
* Plugin version.
*
* @var string
*/
public static $version = '1.4.3';
/**
* Min required PB version.
*
* @var string
*/
public static $req_pb_version = '5.5';
/**
* PB URL.
*
* @var string
*/
private static $pb_url = 'https://woocommerce.com/products/product-bundles/';
/**
* Plugin URL.
*
* @return string
*/
public static function plugin_url() {
return plugins_url( basename( plugin_dir_path(__FILE__) ), basename( __FILE__ ) );
}
/**
* Plugin path.
*
* @return string
*/
public static function plugin_path() {
return untrailingslashit( plugin_dir_path( __FILE__ ) );
}
/**
* Fire in the hole!
*/
public static function init() {
add_action( 'plugins_loaded', __CLASS__ . '::load_plugin' );
}
/**
* Hooks.
*/
public static function load_plugin() {
if ( ! function_exists( 'WC_PB' ) || version_compare( WC_PB()->version, self::$req_pb_version ) < 0 ) {
add_action( 'admin_notices', array( __CLASS__, 'pb_admin_notice' ) );
return false;
}
// Display min/max qty settings in "Bundled Products" tab.
add_action( 'woocommerce_bundled_products_admin_config', array( __CLASS__, 'display_options' ), 15 );
// Save min/max qty settings.
add_action( 'woocommerce_admin_process_product_object', array( __CLASS__, 'save_meta' ) );
// Validation script.
add_action( 'woocommerce_bundle_add_to_cart', array( __CLASS__, 'script' ) );
add_action( 'woocommerce_composite_add_to_cart', array( __CLASS__, 'script' ) );
// Add min/max data to template for use by validation script.
add_action( 'woocommerce_before_bundled_items', array( __CLASS__, 'script_data' ) );
add_action( 'woocommerce_before_composited_bundled_items', array( __CLASS__, 'script_data' ) );
// Add-to-Cart validation.
add_action( 'woocommerce_add_to_cart_bundle_validation', array( __CLASS__, 'add_to_cart_validation' ), 10, 4 );
// Cart validation.
add_action( 'woocommerce_check_cart_items', array( __CLASS__, 'cart_validation' ), 15 );
// Change bundled item quantities.
add_filter( 'woocommerce_bundled_item_quantity', array( __CLASS__, 'bundled_item_quantity' ), 10, 3 );
add_filter( 'woocommerce_bundled_item_quantity_max', array( __CLASS__, 'bundled_item_quantity_max' ), 10, 3 );
// When min/max qty constraints are present, require input.
add_filter( 'woocommerce_bundle_requires_input', array( __CLASS__, 'min_max_bundle_requires_input' ), 10, 2 );
// Localization.
add_action( 'init', array( __CLASS__, 'localize_plugin' ) );
}
/**
* Load textdomain.
*
* @return void
*/
public static function localize_plugin() {
load_plugin_textdomain( 'woocommerce-product-bundles-min-max-items', false, dirname( plugin_basename( __FILE__ ) ) . '/languages/' );
}
/**
* PB version check notice.
*/
public static function pb_admin_notice() {
echo '<div class="error"><p>' . sprintf( __( '<strong>Product Bundles – Min/Max Items</strong> requires <a href="%1$s" target="_blank">WooCommerce Product Bundles</a> version <strong>%2$s</strong> or higher.', 'woocommerce-product-bundles-min-max-items' ), self::$pb_url, self::$req_pb_version ) . '</p></div>';
}
/**
* Admin min/max settings.
*/
public static function display_options() {
woocommerce_wp_text_input( array(
'id' => '_wcpb_min_qty_limit',
'wrapper_class' => 'bundled_product_data_field',
'type' => 'number',
'label' => __( 'Items Required (≥)', 'woocommerce-product-bundles-min-max-items' ),
'desc_tip' => true,
'description' => __( 'Minimum required quantity of bundled items.', 'woocommerce-product-bundles-min-max-items' )
) );
woocommerce_wp_text_input( array(
'id' => '_wcpb_max_qty_limit',
'wrapper_class' => 'bundled_product_data_field',
'type' => 'number',
'label' => __( 'Items Allowed (≤)', 'woocommerce-product-bundles-min-max-items' ),
'desc_tip' => true,
'description' => __( 'Maximum allowed quantity of bundled items.', 'woocommerce-product-bundles-min-max-items' )
) );
}
/**
* Save meta.
*
* @param WC_Product $product
* @return void
*/
public static function save_meta( $product ) {
if ( ! empty( $_POST[ '_wcpb_min_qty_limit' ] ) && is_numeric( $_POST[ '_wcpb_min_qty_limit' ] ) ) {
$product->add_meta_data( '_wcpb_min_qty_limit', stripslashes( $_POST[ '_wcpb_min_qty_limit' ] ), true );
} else {
$product->delete_meta_data( '_wcpb_min_qty_limit' );
}
if ( ! empty( $_POST[ '_wcpb_max_qty_limit' ] ) && is_numeric( $_POST[ '_wcpb_max_qty_limit' ] ) ) {
$product->add_meta_data( '_wcpb_max_qty_limit', stripslashes( $_POST[ '_wcpb_max_qty_limit' ] ), true );
} else {
$product->delete_meta_data( '_wcpb_max_qty_limit' );
}
}
/**
* Validation script.
*/
public static function script() {
$suffix = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
wp_register_script( 'wc-pb-min-max-items-add-to-cart', self::plugin_url() . '/assets/js/wc-pb-min-max-items-add-to-cart' . $suffix . '.js', array( 'wc-add-to-cart-bundle' ), self::$version );
wp_enqueue_script( 'wc-pb-min-max-items-add-to-cart' );
wp_register_style( 'wc-pb-min-max-items-single-css', self::plugin_url() . '/assets/css/wc-pb-min-max-items-single.css', false, self::$version );
wp_style_add_data( 'wc-pb-min-max-items-single-css', 'rtl', 'replace' );
wp_enqueue_style( 'wc-pb-min-max-items-single-css' );
$params = array(
'i18n_min_zero_max_qty_error_singular' => __( 'Please choose an item.', 'woocommerce-product-bundles-min-max-items' ),
'i18n_min_max_qty_error_singular' => __( 'Please choose 1 item.%s', 'woocommerce-product-bundles-min-max-items' ),
'i18n_min_qty_error_singular' => __( 'Please choose at least 1 item.%s', 'woocommerce-product-bundles-min-max-items' ),
'i18n_max_qty_error_singular' => __( 'Please choose up to 1 item.%s', 'woocommerce-product-bundles-min-max-items' ),
'i18n_min_qty_error_plural' => sprintf( __( 'Please choose at least %1$s items.%2$s', 'woocommerce-product-bundles-min-max-items' ), '%q', '%s' ),
'i18n_max_qty_error_plural' => sprintf( __( 'Please choose up to %1$s items.%2$s', 'woocommerce-product-bundles-min-max-items' ), '%q', '%s' ),
'i18n_min_max_qty_error_plural' => sprintf( __( 'Please choose %1$s items.%2$s', 'woocommerce-product-bundles-min-max-items' ), '%q', '%s' ),
'i18n_qty_error_plural' => __( '%s items selected', 'woocommerce-product-bundles-min-max-items' ),
'i18n_qty_error_singular' => __( '1 item selected', 'woocommerce-product-bundles-min-max-items' ),
'i18n_qty_error_status_format' => _x( '<span class="bundled_items_selection_status">%s</span>', 'validation error status format', 'woocommerce-product-bundles-min-max-items' )
);
wp_localize_script( 'wc-pb-min-max-items-add-to-cart', 'wc_pb_min_max_items_params', $params );
}
/**
* Pass min/max container values to the single-product script.
*
* @param WC_Product $product
* @return void
*/
public static function script_data( $the_product = false ) {
global $product;
if ( ! $the_product ) {
$the_product = $product;
}
if ( is_object( $the_product ) && $the_product->is_type( 'bundle' ) ) {
$min = $the_product->get_meta( '_wcpb_min_qty_limit', true );
$max = $the_product->get_meta( '_wcpb_max_qty_limit', true );
?><div class="min_max_items" data-min="<?php echo $min > 0 ? esc_attr( absint( $min ) ) : ''; ?>" data-max="<?php echo $max > 0 ? esc_attr( absint( $max ) ) : ''; ?>"></div><?php
}
}
/**
* Cart validation.
*/
public static function cart_validation() {
foreach ( WC()->cart->cart_contents as $cart_item_key => $cart_item ) {
if ( wc_pb_is_bundle_container_cart_item( $cart_item ) ) {
$configuration = isset( $cart_item[ 'stamp' ] ) ? $cart_item[ 'stamp' ] : false;
$items_selected = 0;
$bundle = $cart_item[ 'data' ];
$min_meta = $bundle->get_meta( '_wcpb_min_qty_limit', true );
$max_meta = $bundle->get_meta( '_wcpb_max_qty_limit', true );
$items_min = $min_meta > 0 ? absint( $min_meta ) : '';
$items_max = $max_meta > 0 ? absint( $max_meta ) : '';
if ( $configuration ) {
foreach ( $configuration as $item_id => $item_configuration ) {
$item_qty = isset( $item_configuration[ 'quantity' ] ) ? $item_configuration[ 'quantity' ] : 0;
$items_selected += $item_qty;
}
}
$items_invalid = false;
if ( $items_min !== '' && $items_selected < $items_min ) {
$items_invalid = true;
} else if ( $items_max !== '' && $items_selected > $items_max ) {
$items_invalid = true;
}
if ( $items_invalid ) {
$bundle_title = $bundle->get_title();
$action = sprintf( __( '"%s" cannot be purchased', 'woocommerce-product-bundles-min-max-items' ), $bundle_title );
if ( $items_min === $items_max ) {
$resolution = sprintf( _n( 'please choose 1 item', 'please choose %s items', $items_min, 'woocommerce-product-bundles-min-max-items' ), $items_min );
} elseif ( $items_selected < $items_min ) {
$resolution = sprintf( _n( 'please choose at least 1 item', 'please choose at least %s items', $items_min, 'woocommerce-product-bundles-min-max-items' ), $items_min );
} else {
$resolution = sprintf( _n( 'please limit your selection to 1 item', 'please choose up to %s items', $items_max, 'woocommerce-product-bundles-min-max-items' ), $items_max );
}
$message = sprintf( _x( '%1$s – %2$s.', 'cart validation error: action, resolution', 'woocommerce-product-bundles-min-max-items' ), $action, $resolution );
wc_add_notice( $message, 'error' );
$is_valid = false;
}
}
}
}
/**
* Add-to-Cart validation.
*
* @param bool $result
* @param int $bundle_id
* @param WC_PB_Stock_Manager $stock_data
* @param array $configuration
* @return boolean
*/
public static function add_to_cart_validation( $is_valid, $bundle_id, $stock_data, $configuration = array() ) {
if ( $is_valid ) {
$bundle = $stock_data->product;
$min_meta = $bundle->get_meta( '_wcpb_min_qty_limit', true );
$max_meta = $bundle->get_meta( '_wcpb_max_qty_limit', true );
$items_min = $min_meta > 0 ? absint( $min_meta ) : '';
$items_max = $max_meta > 0 ? absint( $max_meta ) : '';
$items = $stock_data->get_items();
$items_selected = 0;
foreach ( $items as $item ) {
$item_id = isset( $item->bundled_item ) && $item->bundled_item ? $item->bundled_item->item_id : false;
$item_qty = $item_id && isset( $configuration[ $item_id ] ) && isset( $configuration[ $item_id ][ 'quantity' ] ) ? $configuration[ $item_id ][ 'quantity' ] : $item->quantity;
$items_selected += $item_qty;
}
$items_invalid = false;
if ( $items_min !== '' && $items_selected < $items_min ) {
$items_invalid = true;
} else if ( $items_max !== '' && $items_selected > $items_max ) {
$items_invalid = true;
}
if ( $items_invalid ) {
$bundle_title = $bundle->get_title();
$action = sprintf( __( '"%s" cannot be added to the cart', 'woocommerce-product-bundles-min-max-items' ), $bundle_title );
if ( $items_min === $items_max ) {
$resolution = sprintf( _n( 'please choose 1 item', 'please choose %s items', $items_min, 'woocommerce-product-bundles-min-max-items' ), $items_min );
} elseif ( $items_selected < $items_min ) {
$resolution = sprintf( _n( 'please choose at least 1 item', 'please choose at least %s items', $items_min, 'woocommerce-product-bundles-min-max-items' ), $items_min );
} else {
$resolution = sprintf( _n( 'please limit your selection to 1 item', 'please choose up to %s items', $items_max, 'woocommerce-product-bundles-min-max-items' ), $items_max );
}
if ( $items_selected === 1 ) {
$status = __( ' (you have chosen 1)', 'woocommerce-product-bundles-min-max-items' );
} elseif ( $items_selected > 1 ) {
$status = sprintf( __( ' (you have chosen %s)', 'woocommerce-product-bundles-min-max-items' ), $items_selected );
}
$message = sprintf( _x( '%1$s – %2$s%3$s.', 'add-to-cart validation error: action, resolution, status', 'woocommerce-product-bundles-min-max-items' ), $action, $resolution, $status );
wc_add_notice( $message, 'error' );
$is_valid = false;
}
}
return $is_valid;
}
/**
* Filter bundled item min quantities used in sync/price context.
*
* @param int $qty
* @param WC_Bundled_Item $bundled_item
* @param array $args
* @return int
*/
public static function bundled_item_quantity( $qty, $bundled_item, $args = array() ) {
if ( isset( $args[ 'context' ] ) && in_array( $args[ 'context' ], array( 'sync', 'price' ) ) ) {
$bundle = $bundled_item->get_bundle();
$min_qty = $bundle ? $bundle->get_meta( '_wcpb_min_qty_limit', true ) : '';
if ( $min_qty ) {
if ( 'sync' === $args[ 'context' ] ) {
$quantities = self::get_min_required_quantities( $bundle );
} elseif ( 'price' === $args[ 'context' ] ) {
$quantities = self::get_min_price_quantities( $bundle );
}
if ( isset( $quantities[ $bundled_item->get_id() ] ) ) {
$qty = $quantities[ $bundled_item->get_id() ];
}
}
}
return $qty;
}
/**
* Filter bundled item max quantities used in sync/price context.
*
* @param int $qty
* @param WC_Bundled_Item $bundled_item
* @param array $args
* @return int
*/
public static function bundled_item_quantity_max( $qty, $bundled_item, $args = array() ) {
if ( isset( $args[ 'context' ] ) && in_array( $args[ 'context' ], array( 'sync', 'price' ) ) ) {
$bundle = $bundled_item->get_bundle();
$min_qty = $bundle ? $bundle->get_meta( '_wcpb_min_qty_limit', true ) : '';
if ( $min_qty ) {
if ( 'price' === $args[ 'context' ] ) {
$quantities = self::get_max_price_quantities( $bundle );
}
if ( isset( $quantities[ $bundled_item->get_id() ] ) ) {
$qty = $quantities[ $bundled_item->get_id() ];
}
}
}
return $qty;
}
/**
* Find the price-optimized AND availability-constrained set of bundled item quantities that meet the min item count constraint while honoring the initial min/max item quantity constraints.
*
* @param WC_Product $product
* @return array
*/
public static function get_min_required_quantities( $bundle ) {
$result = WC_PB_Helpers::cache_get( 'min_required_quantities_' . $bundle->get_id() );
if ( is_null( $result ) ) {
$quantities = array(
'min' => array(),
'max' => array()
);
$pricing_data = array();
$bundled_items = $bundle->get_bundled_items();
if ( ! empty( $bundled_items ) ) {
$min_qty = $bundle->get_meta( '_wcpb_min_qty_limit', true );
foreach ( $bundled_items as $bundled_item ) {
$pricing_data[ $bundled_item->get_id() ][ 'price' ] = $bundled_item->get_price();
$pricing_data[ $bundled_item->get_id() ][ 'regular_price' ] = $bundled_item->get_regular_price();
$quantities[ 'min' ][ $bundled_item->get_id() ] = $bundled_item->get_quantity( 'min', array( 'check_optional' => true ) );
$quantities[ 'max' ][ $bundled_item->get_id() ] = $bundled_item->get_quantity( 'max' );
}
// Slots filled so far.
$filled_slots = 0;
foreach ( $quantities[ 'min' ] as $item_min_qty ) {
$filled_slots += $item_min_qty;
}
// Fill in the box with items that are in stock, giving preference to cheapest available.
if ( $filled_slots < $min_qty ) {
// Sort by cheapest.
uasort( $pricing_data, array( __CLASS__, 'sort_by_price' ) );
// Fill additional slots.
foreach ( $pricing_data as $bundled_item_id => $data ) {
$slots_to_fill = $min_qty - $filled_slots;
if ( $filled_slots >= $min_qty ) {
break;
}
$bundled_item = $bundled_items[ $bundled_item_id ];
if ( false === $bundled_item->is_purchasable() ) {
continue;
}
if ( false === $bundled_item->is_in_stock() ) {
continue;
}
$max_stock = $bundled_item->get_max_stock();
$max_item_qty = $quantities[ 'max' ][ $bundled_item_id ];
if ( '' === $max_item_qty ) {
$max_items_to_use = $max_stock;
} elseif ( '' === $max_stock ) {
$max_items_to_use = $max_item_qty;
} else {
$max_items_to_use = min( $max_item_qty, $max_stock );
}
$min_items_to_use = $quantities[ 'min' ][ $bundled_item_id ];
$items_to_use = '' !== $max_items_to_use ? min( $max_items_to_use - $min_items_to_use, $slots_to_fill ) : $slots_to_fill;
$filled_slots += $items_to_use;
$quantities[ 'min' ][ $bundled_item_id ] += $items_to_use;
}
}
// If there are empty slots, then bundled items do not have sufficient stock to fill the minimum box size.
// In this case, ignore stock constraints and return the optimal price quantities, forcing the bundle to show up as out of stock.
if ( $min_qty > $filled_slots ) {
$quantities[ 'min' ] = self::get_min_price_quantities( $bundle );
}
}
$result = $quantities[ 'min' ];
WC_PB_Helpers::cache_set( 'min_required_quantities_' . $bundle->get_id(), $result );
}
return $result;
}
/**
* Find the price-optimized set of bundled item quantities that meet the min item count constraint while honoring the initial min/max item quantity constraints.
*
* @param WC_Product $product
* @return array
*/
public static function get_min_price_quantities( $bundle ) {
$result = WC_PB_Helpers::cache_get( 'min_price_quantities_' . $bundle->get_id() );
if ( is_null( $result ) ) {
$quantities = array(
'min' => array(),
'max' => array()
);
$pricing_data = array();
$bundled_items = $bundle->get_bundled_items();
if ( ! empty( $bundled_items ) ) {
foreach ( $bundled_items as $bundled_item ) {
$pricing_data[ $bundled_item->get_id() ][ 'price' ] = $bundled_item->get_price();
$quantities[ 'min' ][ $bundled_item->get_id() ] = $bundled_item->get_quantity( 'min', array( 'check_optional' => true ) );
$quantities[ 'max' ][ $bundled_item->get_id() ] = $bundled_item->get_quantity( 'max' );
}
}
if ( ! empty( $pricing_data ) ) {
$min_qty = $bundle->get_meta( '_wcpb_min_qty_limit', true );
// Slots filled due to item min quantities.
$filled_slots = 0;
foreach ( $quantities[ 'min' ] as $item_min_qty ) {
$filled_slots += $item_min_qty;
}
// Fill in the remaining box slots with cheapest combination of items.
if ( $filled_slots < $min_qty ) {
// Sort by cheapest.
uasort( $pricing_data, array( __CLASS__, 'sort_by_price' ) );
// Fill additional slots.
foreach ( $pricing_data as $bundled_item_id => $data ) {
$slots_to_fill = $min_qty - $filled_slots;
if ( $filled_slots >= $min_qty ) {
break;
}
$bundled_item = $bundled_items[ $bundled_item_id ];
if ( false === $bundled_item->is_purchasable() ) {
continue;
}
$max_items_to_use = $quantities[ 'max' ][ $bundled_item_id ];
$min_items_to_use = $quantities[ 'min' ][ $bundled_item_id ];
$items_to_use = '' !== $max_items_to_use ? min( $max_items_to_use - $min_items_to_use, $slots_to_fill ) : $slots_to_fill;
$filled_slots += $items_to_use;
$quantities[ 'min' ][ $bundled_item_id ] += $items_to_use;
}
}
}
$result = $quantities[ 'min' ];
WC_PB_Helpers::cache_set( 'min_price_quantities_' . $bundle->get_id(), $result );
}
return $result;
}
/**
* Find the worst-price set of bundled item quantities that meet the max item count constraint while honoring the initial min/max item quantity constraints.
*
* @param WC_Product $product
* @return array
*/
public static function get_max_price_quantities( $bundle ) {
$result = WC_PB_Helpers::cache_get( 'max_price_quantities_' . $bundle->get_id() );
/*
* Max items count defined: Put the min quantities in the box, then keep adding items giving preference to the most expensive ones, while honoring their max quantity constraints.
*/
if ( is_null( $result ) ) {
$quantities = array(
'min' => array(),
'max' => array()
);
$pricing_data = array();
$bundled_items = $bundle->get_bundled_items();
if ( ! empty( $bundled_items ) ) {
foreach ( $bundled_items as $bundled_item ) {
$pricing_data[ $bundled_item->get_id() ][ 'price' ] = $bundled_item->get_price();
$quantities[ 'min' ][ $bundled_item->get_id() ] = $bundled_item->get_quantity( 'min', array( 'check_optional' => true ) );
$quantities[ 'max' ][ $bundled_item->get_id() ] = $bundled_item->get_quantity( 'max' );
}
}
$max_qty = $bundle->get_meta( '_wcpb_max_qty_limit', true );
if ( ! empty( $pricing_data ) ) {
// Sort by most expensive.
uasort( $pricing_data, array( __CLASS__, 'sort_by_price' ) );
$reverse_pricing_data = array_reverse( $pricing_data, true );
// Slots filled due to item min quantities.
$filled_slots = 0;
foreach ( $quantities[ 'min' ] as $item_min_qty ) {
$filled_slots += $item_min_qty;
}
}
// Fill in the remaining box slots with most expensive combination of items.
if ( $filled_slots < $max_qty ) {
// Fill additional slots.
foreach ( $reverse_pricing_data as $bundled_item_id => $data ) {
$slots_to_fill = $max_qty - $filled_slots;
if ( $filled_slots >= $max_qty ) {
$quantities[ 'max' ][ $bundled_item_id ] = $quantities[ 'min' ][ $bundled_item_id ];
continue;
}
$bundled_item = $bundled_items[ $bundled_item_id ];
if ( false === $bundled_item->is_purchasable() ) {
continue;
}
$max_items_to_use = $quantities[ 'max' ][ $bundled_item_id ];
$min_items_to_use = $quantities[ 'min' ][ $bundled_item_id ];
$items_to_use = '' !== $max_items_to_use ? min( $max_items_to_use - $min_items_to_use, $slots_to_fill ) : $slots_to_fill;
$filled_slots += $items_to_use;
$quantities[ 'max' ][ $bundled_item_id ] = $quantities[ 'min' ][ $bundled_item_id ] + $items_to_use;
}
}
$result = $quantities[ 'max' ];
WC_PB_Helpers::cache_set( 'max_price_quantities_' . $bundle->get_id(), $result );
}
return $result;
}
/**
* When min/max qty constraints are present, require input.
*
* @param bool $requires_input
* @param WC_Product_Bundle $bundle
*/
public static function min_max_bundle_requires_input( $requires_input, $bundle ) {
$min_qty = $bundle->get_meta( '_wcpb_min_qty_limit', true );
$max_qty = $bundle->get_meta( '_wcpb_max_qty_limit', true );
if ( $min_qty || $max_qty ) {
$requires_input = true;
}
return $requires_input;
}
/**
* Sort array data by price.
*
* @param array $a
* @param array $b
* @return -1|0|1
*/
private static function sort_by_price( $a, $b ) {
if ( $a[ 'price' ] == $b[ 'price' ] ) {
return 0;
}
return ( $a[ 'price' ] < $b[ 'price' ] ) ? -1 : 1;
}
}
WC_PB_Min_Max_Items::init();