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Edit File : class-wc-brands-coupons.php \| Size : 6.89 KB
<?php declare( strict_types = 1); use Automattic\WooCommerce\Enums\ProductType; /** * WC_Brands_Coupons class. * * Important: For internal use only by the Automattic\WooCommerce\Internal\Brands package. * * @version 9.4.0 / class WC_Brands_Coupons { const E_WC_COUPON_EXCLUDED_BRANDS = 301; /* * Constructor / public function __construct() { // Coupon validation and error handling. add_filter( 'woocommerce_coupon_is_valid', array( $this, 'is_coupon_valid' ), 10, 3 ); add_filter( 'woocommerce_coupon_is_valid_for_product', array( $this, 'is_valid_for_product' ), 10, 3 ); add_filter( 'woocommerce_coupon_error', array( $this, 'brand_exclusion_error' ), 10, 2 ); } /* * Validate the coupon based on included and/or excluded product brands. * * If one of the following conditions are met, an exception will be thrown and * displayed as an error notice on the cart page: * * 1) Coupon has a brand requirement but no products in the cart have the brand. * 2) All products in the cart match the brand exclusion rule. * 3) For a cart discount, there is at least one product in cart that matches exclusion rule. * * @throws Exception Throws Exception for invalid coupons. * @param bool $valid Whether the coupon is valid. * @param WC_Coupon $coupon Coupon object. * @param WC_Discounts $discounts Discounts object. * @return bool $valid True if coupon is valid, otherwise Exception will be thrown. / public function is_coupon_valid( $valid, $coupon, $discounts = null ) { $this->set_brand_settings_on_coupon( $coupon ); // Only check if coupon has brand restrictions on it. $brand_coupon_settings = WC_Brands_Brand_Settings_Manager::get_brand_settings_on_coupon( $coupon ); $brand_restrictions = ! empty( $brand_coupon_settings['included_brands'] ) \|\| ! empty( $brand_coupon_settings['excluded_brands'] ); if ( ! $brand_restrictions ) { return $valid; } $included_brands_match = false; $excluded_brands_matches = 0; $items = $discounts->get_items(); foreach ( $items as $item ) { $product_brands = $this->get_product_brands( $this->get_product_id( $item->product ) ); if ( ! empty( array_intersect( $product_brands, $brand_coupon_settings['included_brands'] ) ) ) { $included_brands_match = true; } if ( ! empty( array_intersect( $product_brands, $brand_coupon_settings['excluded_brands'] ) ) ) { ++$excluded_brands_matches; } } // 1) Coupon has a brand requirement but no products in the cart have the brand. if ( ! $included_brands_match && ! empty( $brand_coupon_settings['included_brands'] ) ) { throw new Exception( $coupon->get_coupon_error( WC_Coupon::E_WC_COUPON_NOT_APPLICABLE ), WC_Coupon::E_WC_COUPON_NOT_APPLICABLE ); // phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped } // 2) All products in the cart match brand exclusion rule. if ( count( $items ) === $excluded_brands_matches ) { throw new Exception( __( 'Sorry, this coupon is not applicable to the brands of selected products.', 'woocommerce' ), self::E_WC_COUPON_EXCLUDED_BRANDS ); // phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped } // 3) For a cart discount, there is at least one product in cart that matches exclusion rule. if ( $coupon->is_type( 'fixed_cart' ) && $excluded_brands_matches > 0 ) { throw new Exception( __( 'Sorry, this coupon is not applicable to the brands of selected products.', 'woocommerce' ), self::E_WC_COUPON_EXCLUDED_BRANDS ); // phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped } return $valid; } /* * Check if a coupon is valid for a product. * * This allows percentage and product discounts to apply to only * the correct products in the cart. * * @param bool $valid Whether the product should get the coupon's discounts. * @param WC_Product $product WC Product Object. * @param WC_Coupon $coupon Coupon object. * @return bool $valid / public function is_valid_for_product( $valid, $product, $coupon ) { if ( ! is_a( $product, 'WC_Product' ) ) { return $valid; } $this->set_brand_settings_on_coupon( $coupon ); $product_id = $this->get_product_id( $product ); $product_brands = $this->get_product_brands( $product_id ); // Check if coupon has a brand requirement and if this product has that brand attached. $brand_coupon_settings = WC_Brands_Brand_Settings_Manager::get_brand_settings_on_coupon( $coupon ); if ( ! empty( $brand_coupon_settings['included_brands'] ) && empty( array_intersect( $product_brands, $brand_coupon_settings['included_brands'] ) ) ) { return false; } // Check if coupon has a brand exclusion and if this product has that brand attached. if ( ! empty( $brand_coupon_settings['excluded_brands'] ) && ! empty( array_intersect( $product_brands, $brand_coupon_settings['excluded_brands'] ) ) ) { return false; } return $valid; } /* * Display a custom error message when a cart discount coupon does not validate * because an excluded brand was found in the cart. * * @param string $err The error message. * @param string $err_code The error code. * @return string / public function brand_exclusion_error( $err, $err_code ) { if ( self::E_WC_COUPON_EXCLUDED_BRANDS !== $err_code ) { return $err; } return __( 'Sorry, this coupon is not applicable to the brands of selected products.', 'woocommerce' ); } /* * Get a list of brands that are assigned to a specific product * * @param int $product_id Product id. * @return array brands / private function get_product_brands( $product_id ) { return wp_get_post_terms( $product_id, 'product_brand', array( 'fields' => 'ids' ) ); } /* * Set brand settings as properties on coupon object. These properties are * lists of included product brand IDs and list of excluded brand IDs. * * @param WC_Coupon $coupon Coupon object. * * @return void / private function set_brand_settings_on_coupon( $coupon ) { $brand_coupon_settings = WC_Brands_Brand_Settings_Manager::get_brand_settings_on_coupon( $coupon ); if ( ! empty( $brand_coupon_settings['included_brands'] ) && ! empty( $brand_coupon_settings['excluded_brands'] ) ) { return; } $included_brands = get_post_meta( $coupon->get_id(), 'product_brands', true ); if ( empty( $included_brands ) ) { $included_brands = array(); } $excluded_brands = get_post_meta( $coupon->get_id(), 'exclude_product_brands', true ); if ( empty( $excluded_brands ) ) { $excluded_brands = array(); } // Store these for later to avoid multiple look-ups. WC_Brands_Brand_Settings_Manager::set_brand_settings_on_coupon( $coupon ); } /* * Returns the product (or variant) ID. * * @param WC_Product $product WC Product Object. * @return int Product ID */ private function get_product_id( $product ) { return $product->is_type( ProductType::VARIATION ) ? $product->get_parent_id() : $product->get_id(); } } new WC_Brands_Coupons(); Back

Edit File : class-wc-brands-coupons.php | Size : 6.89 KB

<?php

declare( strict_types = 1);

use Automattic\WooCommerce\Enums\ProductType;

/**
 * WC_Brands_Coupons class.
 *
 * Important: For internal use only by the Automattic\WooCommerce\Internal\Brands package.
 *
 * @version 9.4.0
 */
class WC_Brands_Coupons {

const E_WC_COUPON_EXCLUDED_BRANDS = 301;

/**
	 * Constructor
	 */
	public function __construct() {
		// Coupon validation and error handling.
		add_filter( 'woocommerce_coupon_is_valid', array( $this, 'is_coupon_valid' ), 10, 3 );
		add_filter( 'woocommerce_coupon_is_valid_for_product', array( $this, 'is_valid_for_product' ), 10, 3 );
		add_filter( 'woocommerce_coupon_error', array( $this, 'brand_exclusion_error' ), 10, 2 );
	}

/**
	 * Validate the coupon based on included and/or excluded product brands.
	 *
	 * If one of the following conditions are met, an exception will be thrown and
	 * displayed as an error notice on the cart page:
	 *
	 * 1) Coupon has a brand requirement but no products in the cart have the brand.
	 * 2) All products in the cart match the brand exclusion rule.
	 * 3) For a cart discount, there is at least one product in cart that matches exclusion rule.
	 *
	 * @throws Exception Throws Exception for invalid coupons.
	 * @param  bool         $valid  Whether the coupon is valid.
	 * @param  WC_Coupon    $coupon Coupon object.
	 * @param  WC_Discounts $discounts Discounts object.
	 * @return bool         $valid  True if coupon is valid, otherwise Exception will be thrown.
	 */
	public function is_coupon_valid( $valid, $coupon, $discounts = null ) {
		$this->set_brand_settings_on_coupon( $coupon );

// Only check if coupon has brand restrictions on it.
		$brand_coupon_settings = WC_Brands_Brand_Settings_Manager::get_brand_settings_on_coupon( $coupon );

$brand_restrictions = ! empty( $brand_coupon_settings['included_brands'] ) || ! empty( $brand_coupon_settings['excluded_brands'] );
		if ( ! $brand_restrictions ) {
			return $valid;
		}

$included_brands_match   = false;
		$excluded_brands_matches = 0;

$items = $discounts->get_items();

foreach ( $items as $item ) {
			$product_brands = $this->get_product_brands( $this->get_product_id( $item->product ) );

if ( ! empty( array_intersect( $product_brands, $brand_coupon_settings['included_brands'] ) ) ) {
				$included_brands_match = true;
			}

if ( ! empty( array_intersect( $product_brands, $brand_coupon_settings['excluded_brands'] ) ) ) {
				++$excluded_brands_matches;
			}
		}

// 1) Coupon has a brand requirement but no products in the cart have the brand.
		if ( ! $included_brands_match && ! empty( $brand_coupon_settings['included_brands'] ) ) {
			throw new Exception( $coupon->get_coupon_error( WC_Coupon::E_WC_COUPON_NOT_APPLICABLE ), WC_Coupon::E_WC_COUPON_NOT_APPLICABLE ); // phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped
		}

// 2) All products in the cart match brand exclusion rule.
		if ( count( $items ) === $excluded_brands_matches ) {
			throw new Exception( __( 'Sorry, this coupon is not applicable to the brands of selected products.', 'woocommerce' ), self::E_WC_COUPON_EXCLUDED_BRANDS ); // phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped
		}

// 3) For a cart discount, there is at least one product in cart that matches exclusion rule.
		if ( $coupon->is_type( 'fixed_cart' ) && $excluded_brands_matches > 0 ) {
			throw new Exception( __( 'Sorry, this coupon is not applicable to the brands of selected products.', 'woocommerce' ), self::E_WC_COUPON_EXCLUDED_BRANDS ); // phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped
		}

return $valid;
	}

/**
	 * Check if a coupon is valid for a product.
	 *
	 * This allows percentage and product discounts to apply to only
	 * the correct products in the cart.
	 *
	 * @param  bool       $valid   Whether the product should get the coupon's discounts.
	 * @param  WC_Product $product WC Product Object.
	 * @param  WC_Coupon  $coupon  Coupon object.
	 * @return bool       $valid
	 */
	public function is_valid_for_product( $valid, $product, $coupon ) {

if ( ! is_a( $product, 'WC_Product' ) ) {
			return $valid;
		}
		$this->set_brand_settings_on_coupon( $coupon );

$product_id     = $this->get_product_id( $product );
		$product_brands = $this->get_product_brands( $product_id );

// Check if coupon has a brand requirement and if this product has that brand attached.
		$brand_coupon_settings = WC_Brands_Brand_Settings_Manager::get_brand_settings_on_coupon( $coupon );
		if ( ! empty( $brand_coupon_settings['included_brands'] ) && empty( array_intersect( $product_brands, $brand_coupon_settings['included_brands'] ) ) ) {
			return false;
		}

// Check if coupon has a brand exclusion and if this product has that brand attached.
		if ( ! empty( $brand_coupon_settings['excluded_brands'] ) && ! empty( array_intersect( $product_brands, $brand_coupon_settings['excluded_brands'] ) ) ) {
			return false;
		}

return $valid;
	}

/**
	 * Display a custom error message when a cart discount coupon does not validate
	 * because an excluded brand was found in the cart.
	 *
	 * @param  string $err      The error message.
	 * @param  string $err_code The error code.
	 * @return string
	 */
	public function brand_exclusion_error( $err, $err_code ) {
		if ( self::E_WC_COUPON_EXCLUDED_BRANDS !== $err_code ) {
			return $err;
		}

return __( 'Sorry, this coupon is not applicable to the brands of selected products.', 'woocommerce' );
	}

/**
	 * Get a list of brands that are assigned to a specific product
	 *
	 * @param  int $product_id Product id.
	 * @return array brands
	 */
	private function get_product_brands( $product_id ) {
		return wp_get_post_terms( $product_id, 'product_brand', array( 'fields' => 'ids' ) );
	}

/**
	 * Set brand settings as properties on coupon object. These properties are
	 * lists of included product brand IDs and list of excluded brand IDs.
	 *
	 * @param WC_Coupon $coupon Coupon object.
	 *
	 * @return void
	 */
	private function set_brand_settings_on_coupon( $coupon ) {
		$brand_coupon_settings = WC_Brands_Brand_Settings_Manager::get_brand_settings_on_coupon( $coupon );

if ( ! empty( $brand_coupon_settings['included_brands'] ) && ! empty( $brand_coupon_settings['excluded_brands'] ) ) {
			return;
		}

$included_brands = get_post_meta( $coupon->get_id(), 'product_brands', true );
		if ( empty( $included_brands ) ) {
			$included_brands = array();
		}

$excluded_brands = get_post_meta( $coupon->get_id(), 'exclude_product_brands', true );
		if ( empty( $excluded_brands ) ) {
			$excluded_brands = array();
		}

// Store these for later to avoid multiple look-ups.
		WC_Brands_Brand_Settings_Manager::set_brand_settings_on_coupon( $coupon );
	}

/**
	 * Returns the product (or variant) ID.
	 *
	 * @param  WC_Product $product WC Product Object.
	 * @return int Product ID
	 */
	private function get_product_id( $product ) {
		return $product->is_type( ProductType::VARIATION ) ? $product->get_parent_id() : $product->get_id();
	}
}

new WC_Brands_Coupons();

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