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класс не описан

WC_Shipping_Legacy_Flat_Rate{} WC 1.0

Запрещена (устарела) с версии 2.6.0. Больше не поддерживается и может быть удалена. Рекомендуется заменить эту функцию на аналог.

Flat Rate Shipping Method.

This class is here for backwards compatibility for methods existing before zones existed.

Хуки из класса
Возвращает

Null. Ничего.

Использование

$WC_Shipping_Legacy_Flat_Rate = new WC_Shipping_Legacy_Flat_Rate();
// use class methods

Методы

  1. __construct()
  2. process_admin_options()
  3. get_option_key()
  4. init()
  5. init_form_fields()
  6. evaluate_cost( $sum, $args = array() )
  7. fee( $atts )
  8. calculate_shipping( $package = array() )
  9. get_package_item_qty( $package )
  10. find_shipping_classes( $package )
  11. calculate_extra_shipping( $method, $rate )
  12. calc_percentage_adjustment( $cost, $percent_adjustment, $percent_operator, $base_price )
  13. get_extra_cost( $cost_string, $type, $package )

Заметки

  • Пакет: WooCommerce\Classes\Shipping

Список изменений

Устарела с 2.6.0

Код WC_Shipping_Legacy_Flat_Rate{} WC 4.6.0

<?php
class WC_Shipping_Legacy_Flat_Rate extends WC_Shipping_Method {

	/**
	 * Cost passed to [fee] shortcode.
	 *
	 * @var string
	 */
	protected $fee_cost = '';

	/**
	 * Constructor.
	 */
	public function __construct() {
		$this->id           = 'legacy_flat_rate';
		$this->method_title = __( 'Flat rate (legacy)', 'woocommerce' );
		/* translators: %s: Admin shipping settings URL */
		$this->method_description = '<strong>' . sprintf( __( 'This method is deprecated in 2.6.0 and will be removed in future versions - we recommend disabling it and instead setting up a new rate within your <a href="%s">Shipping zones</a>.', 'woocommerce' ), admin_url( 'admin.php?page=wc-settings&tab=shipping' ) ) . '</strong>';
		$this->init();

		add_action( 'woocommerce_update_options_shipping_' . $this->id, array( $this, 'process_admin_options' ) );
		add_action( 'woocommerce_flat_rate_shipping_add_rate', array( $this, 'calculate_extra_shipping' ), 10, 2 );
	}

	/**
	 * Process and redirect if disabled.
	 */
	public function process_admin_options() {
		parent::process_admin_options();

		if ( 'no' === $this->settings['enabled'] ) {
			wp_redirect( admin_url( 'admin.php?page=wc-settings&tab=shipping&section=options' ) );
			exit;
		}
	}

	/**
	 * Return the name of the option in the WP DB.
	 *
	 * @since 2.6.0
	 * @return string
	 */
	public function get_option_key() {
		return $this->plugin_id . 'flat_rate_settings';
	}

	/**
	 * Init function.
	 */
	public function init() {
		// Load the settings.
		$this->init_form_fields();
		$this->init_settings();

		// Define user set variables.
		$this->title        = $this->get_option( 'title' );
		$this->availability = $this->get_option( 'availability' );
		$this->countries    = $this->get_option( 'countries' );
		$this->tax_status   = $this->get_option( 'tax_status' );
		$this->cost         = $this->get_option( 'cost' );
		$this->type         = $this->get_option( 'type', 'class' );
		$this->options      = $this->get_option( 'options', false ); // @deprecated 2.4.0
	}

	/**
	 * Initialise Settings Form Fields.
	 */
	public function init_form_fields() {
		$this->form_fields = include __DIR__ . '/includes/settings-flat-rate.php';
	}

	/**
	 * Evaluate a cost from a sum/string.
	 *
	 * @param  string $sum Sum to evaluate.
	 * @param  array  $args Arguments.
	 * @return string
	 */
	protected function evaluate_cost( $sum, $args = array() ) {
		include_once WC()->plugin_path() . '/includes/libraries/class-wc-eval-math.php';

		$locale   = localeconv();
		$decimals = array( wc_get_price_decimal_separator(), $locale['decimal_point'], $locale['mon_decimal_point'] );

		$this->fee_cost = $args['cost'];

		// Expand shortcodes.
		add_shortcode( 'fee', array( $this, 'fee' ) );

		$sum = do_shortcode(
			str_replace(
				array(
					'[qty]',
					'[cost]',
				),
				array(
					$args['qty'],
					$args['cost'],
				),
				$sum
			)
		);

		remove_shortcode( 'fee', array( $this, 'fee' ) );

		// Remove whitespace from string.
		$sum = preg_replace( '/\s+/', '', $sum );

		// Remove locale from string.
		$sum = str_replace( $decimals, '.', $sum );

		// Trim invalid start/end characters.
		$sum = rtrim( ltrim( $sum, "\t\n\r\0\x0B+*/" ), "\t\n\r\0\x0B+-*/" );

		// Do the math.
		return $sum ? WC_Eval_Math::evaluate( $sum ) : 0;
	}

	/**
	 * Work out fee (shortcode).
	 *
	 * @param  array $atts Shortcode attributes.
	 * @return string
	 */
	public function fee( $atts ) {
		$atts = shortcode_atts(
			array(
				'percent' => '',
				'min_fee' => '',
			),
			$atts,
			'fee'
		);

		$calculated_fee = 0;

		if ( $atts['percent'] ) {
			$calculated_fee = $this->fee_cost * ( floatval( $atts['percent'] ) / 100 );
		}

		if ( $atts['min_fee'] && $calculated_fee < $atts['min_fee'] ) {
			$calculated_fee = $atts['min_fee'];
		}

		return $calculated_fee;
	}

	/**
	 * Calculate shipping.
	 *
	 * @param array $package (default: array()).
	 */
	public function calculate_shipping( $package = array() ) {
		$rate = array(
			'id'      => $this->id,
			'label'   => $this->title,
			'cost'    => 0,
			'package' => $package,
		);

		// Calculate the costs.
		$has_costs = false; // True when a cost is set. False if all costs are blank strings.
		$cost      = $this->get_option( 'cost' );

		if ( '' !== $cost ) {
			$has_costs    = true;
			$rate['cost'] = $this->evaluate_cost(
				$cost,
				array(
					'qty'  => $this->get_package_item_qty( $package ),
					'cost' => $package['contents_cost'],
				)
			);
		}

		// Add shipping class costs.
		$found_shipping_classes = $this->find_shipping_classes( $package );
		$highest_class_cost     = 0;

		foreach ( $found_shipping_classes as $shipping_class => $products ) {
			// Also handles BW compatibility when slugs were used instead of ids.
			$shipping_class_term = get_term_by( 'slug', $shipping_class, 'product_shipping_class' );
			$class_cost_string   = $shipping_class_term && $shipping_class_term->term_id ? $this->get_option( 'class_cost_' . $shipping_class_term->term_id, $this->get_option( 'class_cost_' . $shipping_class, '' ) ) : $this->get_option( 'no_class_cost', '' );

			if ( '' === $class_cost_string ) {
				continue;
			}

			$has_costs  = true;
			$class_cost = $this->evaluate_cost(
				$class_cost_string,
				array(
					'qty'  => array_sum( wp_list_pluck( $products, 'quantity' ) ),
					'cost' => array_sum( wp_list_pluck( $products, 'line_total' ) ),
				)
			);

			if ( 'class' === $this->type ) {
				$rate['cost'] += $class_cost;
			} else {
				$highest_class_cost = $class_cost > $highest_class_cost ? $class_cost : $highest_class_cost;
			}
		}

		if ( 'order' === $this->type && $highest_class_cost ) {
			$rate['cost'] += $highest_class_cost;
		}

		$rate['package'] = $package;

		// Add the rate.
		if ( $has_costs ) {
			$this->add_rate( $rate );
		}

		/**
		 * Developers can add additional flat rates based on this one via this action since @version 2.4.
		 *
		 * Previously there were (overly complex) options to add additional rates however this was not user.
		 * friendly and goes against what Flat Rate Shipping was originally intended for.
		 *
		 * This example shows how you can add an extra rate based on this flat rate via custom function:
		 *
		 *      add_action( 'woocommerce_flat_rate_shipping_add_rate', 'add_another_custom_flat_rate', 10, 2 );
		 *
		 *      function add_another_custom_flat_rate( $method, $rate ) {
		 *          $new_rate          = $rate;
		 *          $new_rate['id']    .= ':' . 'custom_rate_name'; // Append a custom ID.
		 *          $new_rate['label'] = 'Rushed Shipping'; // Rename to 'Rushed Shipping'.
		 *          $new_rate['cost']  += 2; // Add $2 to the cost.
		 *
		 *          // Add it to WC.
		 *          $method->add_rate( $new_rate );
		 *      }.
		 */
		do_action( 'woocommerce_flat_rate_shipping_add_rate', $this, $rate );
	}

	/**
	 * Get items in package.
	 *
	 * @param  array $package Package information.
	 * @return int
	 */
	public function get_package_item_qty( $package ) {
		$total_quantity = 0;
		foreach ( $package['contents'] as $item_id => $values ) {
			if ( $values['quantity'] > 0 && $values['data']->needs_shipping() ) {
				$total_quantity += $values['quantity'];
			}
		}
		return $total_quantity;
	}

	/**
	 * Finds and returns shipping classes and the products with said class.
	 *
	 * @param mixed $package Package information.
	 * @return array
	 */
	public function find_shipping_classes( $package ) {
		$found_shipping_classes = array();

		foreach ( $package['contents'] as $item_id => $values ) {
			if ( $values['data']->needs_shipping() ) {
				$found_class = $values['data']->get_shipping_class();

				if ( ! isset( $found_shipping_classes[ $found_class ] ) ) {
					$found_shipping_classes[ $found_class ] = array();
				}

				$found_shipping_classes[ $found_class ][ $item_id ] = $values;
			}
		}

		return $found_shipping_classes;
	}

	/**
	 * Adds extra calculated flat rates.
	 *
	 * @deprecated 2.4.0
	 *
	 * Additional rates defined like this:
	 *  Option Name | Additional Cost [+- Percents%] | Per Cost Type (order, class, or item).
	 *
	 * @param null  $method Deprecated.
	 * @param array $rate Rate information.
	 */
	public function calculate_extra_shipping( $method, $rate ) {
		if ( $this->options ) {
			$options = array_filter( (array) explode( "\n", $this->options ) );

			foreach ( $options as $option ) {
				$this_option = array_map( 'trim', explode( WC_DELIMITER, $option ) );
				if ( count( $this_option ) !== 3 ) {
					continue;
				}
				$extra_rate          = $rate;
				$extra_rate['id']    = $this->id . ':' . urldecode( sanitize_title( $this_option[0] ) );
				$extra_rate['label'] = $this_option[0];
				$extra_cost          = $this->get_extra_cost( $this_option[1], $this_option[2], $rate['package'] );
				if ( is_array( $extra_rate['cost'] ) ) {
					$extra_rate['cost']['order'] = $extra_rate['cost']['order'] + $extra_cost;
				} else {
					$extra_rate['cost'] += $extra_cost;
				}

				$this->add_rate( $extra_rate );
			}
		}
	}

	/**
	 * Calculate the percentage adjustment for each shipping rate.
	 *
	 * @deprecated 2.4.0
	 * @param  float  $cost Cost.
	 * @param  float  $percent_adjustment Percent adjusment.
	 * @param  string $percent_operator Percent operator.
	 * @param  float  $base_price Base price.
	 * @return float
	 */
	public function calc_percentage_adjustment( $cost, $percent_adjustment, $percent_operator, $base_price ) {
		if ( '+' === $percent_operator ) {
			$cost += $percent_adjustment * $base_price;
		} else {
			$cost -= $percent_adjustment * $base_price;
		}
		return $cost;
	}

	/**
	 * Get extra cost.
	 *
	 * @deprecated 2.4.0
	 * @param  string $cost_string Cost string.
	 * @param  string $type Type.
	 * @param  array  $package Package information.
	 * @return float
	 */
	public function get_extra_cost( $cost_string, $type, $package ) {
		$cost         = $cost_string;
		$cost_percent = false;
		// @codingStandardsIgnoreStart
		$pattern      =
			'/' .           // Start regex.
			'(\d+\.?\d*)' . // Capture digits, optionally capture a `.` and more digits.
			'\s*' .         // Match whitespace.
			'(\+|-)' .      // Capture the operand.
			'\s*' .         // Match whitespace.
			'(\d+\.?\d*)' . // Capture digits, optionally capture a `.` and more digits.
			'\%/';          // Match the percent sign & end regex.
		// @codingStandardsIgnoreEnd
		if ( preg_match( $pattern, $cost_string, $this_cost_matches ) ) {
			$cost_operator = $this_cost_matches[2];
			$cost_percent  = $this_cost_matches[3] / 100;
			$cost          = $this_cost_matches[1];
		}
		switch ( $type ) {
			case 'class':
				$cost = $cost * count( $this->find_shipping_classes( $package ) );
				break;
			case 'item':
				$cost = $cost * $this->get_package_item_qty( $package );
				break;
		}
		if ( $cost_percent ) {
			switch ( $type ) {
				case 'class':
					$shipping_classes = $this->find_shipping_classes( $package );
					foreach ( $shipping_classes as $shipping_class => $items ) {
						foreach ( $items as $item_id => $values ) {
							$cost = $this->calc_percentage_adjustment( $cost, $cost_percent, $cost_operator, $values['line_total'] );
						}
					}
					break;
				case 'item':
					foreach ( $package['contents'] as $item_id => $values ) {
						if ( $values['data']->needs_shipping() ) {
							$cost = $this->calc_percentage_adjustment( $cost, $cost_percent, $cost_operator, $values['line_total'] );
						}
					}
					break;
				case 'order':
					$cost = $this->calc_percentage_adjustment( $cost, $cost_percent, $cost_operator, $package['contents_cost'] );
					break;
			}
		}
		return $cost;
	}
}