woocommerce/includes/shipping/flat-rate/class-wc-shipping-flat-rate...

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<?php
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if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
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/**
* Flat Rate Shipping Method
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*
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* A simple shipping method for a flat fee per item or per order
*
* @class WC_Shipping_Flat_Rate
* @version 2.0.0
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* @package WooCommerce/Classes/Shipping
* @author WooThemes
*/
class WC_Shipping_Flat_Rate extends WC_Shipping_Method {
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/**
* __construct function.
*
* @access public
* @return void
*/
function __construct() {
$this->id = 'flat_rate';
$this->method_title = __( 'Flat Rate', 'woocommerce' );
$this->flat_rate_option = 'woocommerce_flat_rates';
$this->method_description = __( 'Flat rates let you define a standard rate per item, or per order.', 'woocommerce' );
add_action( 'woocommerce_update_options_shipping_' . $this->id, array( $this, 'process_admin_options' ) );
add_action( 'woocommerce_update_options_shipping_' . $this->id, array( $this, 'process_flat_rates' ) );
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add_filter( 'woocommerce_settings_api_sanitized_fields_' . $this->id, array( $this, 'save_default_costs' ) );
$this->init();
}
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/**
* init function.
*
* @access public
* @return void
*/
function init() {
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// Load the settings.
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$this->init_form_fields();
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$this->init_settings();
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// Define user set variables
$this->title = $this->get_option( 'title' );
$this->availability = $this->get_option( 'availability' );
$this->countries = $this->get_option( 'countries' );
$this->type = $this->get_option( 'type' );
$this->tax_status = $this->get_option( 'tax_status' );
$this->cost = $this->get_option( 'cost' );
$this->cost_per_order = $this->get_option( 'cost_per_order' );
$this->fee = $this->get_option( 'fee' );
$this->minimum_fee = $this->get_option( 'minimum_fee' );
$this->options = (array) explode( "\n", $this->get_option( 'options' ) );
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// Load Flat rates
$this->get_flat_rates();
}
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/**
* Initialise Gateway Settings Form Fields
*
* @access public
* @return void
*/
function init_form_fields() {
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$this->form_fields = array(
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'enabled' => array(
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'title' => __( 'Enable/Disable', 'woocommerce' ),
'type' => 'checkbox',
'label' => __( 'Enable this shipping method', 'woocommerce' ),
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'default' => 'no',
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),
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'title' => array(
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'title' => __( 'Method Title', 'woocommerce' ),
'type' => 'text',
'description' => __( 'This controls the title which the user sees during checkout.', 'woocommerce' ),
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'default' => __( 'Flat Rate', 'woocommerce' ),
'desc_tip' => true
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),
'availability' => array(
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'title' => __( 'Availability', 'woocommerce' ),
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'type' => 'select',
'default' => 'all',
'class' => 'availability',
'options' => array(
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'all' => __( 'All allowed countries', 'woocommerce' ),
'specific' => __( 'Specific Countries', 'woocommerce' ),
),
),
'countries' => array(
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'title' => __( 'Specific Countries', 'woocommerce' ),
'type' => 'multiselect',
'class' => 'chosen_select',
'css' => 'width: 450px;',
'default' => '',
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'options' => WC()->countries->get_shipping_countries(),
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'custom_attributes' => array(
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'data-placeholder' => __( 'Select some countries', 'woocommerce' )
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)
),
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'tax_status' => array(
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'title' => __( 'Tax Status', 'woocommerce' ),
'type' => 'select',
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'default' => 'taxable',
'options' => array(
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'taxable' => __( 'Taxable', 'woocommerce' ),
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'none' => _x( 'None', 'Tax status', 'woocommerce' )
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),
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),
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'cost_per_order' => array(
'title' => __( 'Cost per order', 'woocommerce' ),
'type' => 'price',
'placeholder' => wc_format_localized_price( 0 ),
'description' => __( 'Enter a cost (excluding tax) per order, e.g. 5.00. Default is 0.', 'woocommerce' ),
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'default' => '',
'desc_tip' => true
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),
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'options' => array(
'title' => __( 'Additional Rates', 'woocommerce' ),
'type' => 'textarea',
'description' => __( 'Optional extra shipping options with additional costs (one per line): Option Name | Additional Cost [+- Percents] | Per Cost Type (order, class, or item) Example: <code>Priority Mail | 6.95 [+ 0.2%] | order</code>.', 'woocommerce' ),
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'default' => '',
'desc_tip' => true,
'placeholder' => __( 'Option Name | Additional Cost [+- Percents%] | Per Cost Type (order, class, or item)', 'woocommerce' )
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),
'additional_costs' => array(
'title' => __( 'Additional Costs', 'woocommerce' ),
'type' => 'title',
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'description' => __( 'Additional costs can be added below - these will all be added to the per-order cost above.', 'woocommerce' )
),
'type' => array(
'title' => __( 'Costs Added...', 'woocommerce' ),
'type' => 'select',
'default' => 'order',
'options' => array(
'order' => __( 'Per Order - charge shipping for the entire order as a whole', 'woocommerce' ),
'item' => __( 'Per Item - charge shipping for each item individually', 'woocommerce' ),
'class' => __( 'Per Class - charge shipping for each shipping class in an order', 'woocommerce' ),
),
),
'additional_costs_table' => array(
'type' => 'additional_costs_table'
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),
'minimum_fee' => array(
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'title' => __( 'Minimum Handling Fee', 'woocommerce' ),
'type' => 'price',
'placeholder' => wc_format_localized_price( 0 ),
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'description' => __( 'Enter a minimum fee amount. Fee\'s less than this will be increased. Leave blank to disable.', 'woocommerce' ),
'default' => '',
'desc_tip' => true
),
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);
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}
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/**
* calculate_shipping function.
*
* @access public
* @param array $package (default: array())
* @return void
*/
function calculate_shipping( $package = array() ) {
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$this->rates = array();
$cost_per_order = ( isset( $this->cost_per_order ) && ! empty( $this->cost_per_order ) ) ? $this->cost_per_order : 0;
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if ( $this->type == 'order' ) {
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$shipping_total = $this->order_shipping( $package );
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if ( ! is_null( $shipping_total ) || $cost_per_order > 0 ) {
$rate = array(
'id' => $this->id,
'label' => $this->title,
'cost' => $shipping_total + $cost_per_order,
);
}
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} elseif ( $this->type == 'class' ) {
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$shipping_total = $this->class_shipping( $package );
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if ( ! is_null( $shipping_total ) || $cost_per_order > 0 ) {
$rate = array(
'id' => $this->id,
'label' => $this->title,
'cost' => $shipping_total + $cost_per_order,
);
}
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} elseif ( $this->type == 'item' ) {
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$costs = $this->item_shipping( $package );
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if ( ! is_null( $costs ) || $cost_per_order > 0 ) {
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if ( ! is_array( $costs ) ) {
$costs = array();
}
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$costs['order'] = $cost_per_order;
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$rate = array(
'id' => $this->id,
'label' => $this->title,
'cost' => $costs,
'calc_tax' => 'per_item',
);
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}
}
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if ( isset( $rate ) ) {
$this->add_rate( $rate );
}
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// Add any extra rates
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if ( sizeof( $this->options ) > 0) {
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if ( ! isset( $rate ) ) {
$rate = array(
'id' => $this->id,
'label' => $this->title,
'cost' => 0,
);
}
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// Get item qty
$total_quantity = 0;
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foreach ( $package['contents'] as $item_id => $values ) {
if ( $values['quantity'] > 0 && $values['data']->needs_shipping() ) {
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$total_quantity += $values['quantity'];
}
}
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// Loop options
foreach ( $this->options as $option ) {
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$this_option = array_map( 'trim', explode( WC_DELIMITER, $option ) );
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if ( sizeof( $this_option ) !== 3 ) continue;
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$extra_rate = $rate;
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$extra_rate['id'] = $this->id . ':' . urldecode( sanitize_title( $this_option[0] ) );
$extra_rate['label'] = $this_option[0];
$this_cost = $this_option[1];
$this_cost_percents = '';
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$pattern =
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'/' . // 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
if ( preg_match( $pattern, $this_cost, $this_cost_matches ) ) {
$this_cost_mathop = $this_cost_matches[2];
$this_cost_percents = $this_cost_matches[3] / 100;
$this_cost = $this_cost_matches[1];
unset( $this_cost_matches );
}
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// Backwards compat with yes and no
if ( $this_option[2] == 'yes' ) {
$this_type = 'order';
} elseif ( $this_option[2] == 'no' ) {
$this_type = $this->type;
} else {
$this_type = $this_option[2];
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}
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switch ( $this_type ) {
case 'class' :
$this_cost = $this_cost * sizeof( $this->find_shipping_classes( $package ) );
// Factor $this_cost by the percentage if provided.
if ( $this_cost_percents ) {
foreach ( $this->find_shipping_classes( $package ) as $shipping_class => $items ){
foreach ( $items as $item_id => $values ) {
$this_cost = $this->calc_percentage_adjustment( $this_cost, $this_cost_percents, $this_cost_mathop, $values['line_total'] );
}
}
}
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break;
case 'item' :
$this_cost = $this_cost * $total_quantity;
// Factor $this_cost by the percentage if provided.
if ( $this_cost_percents ) {
foreach ( $package['contents'] as $item_id => $values ) {
$this_cost = $this->calc_percentage_adjustment( $this_cost, $this_cost_percents, $this_cost_mathop, $values['line_total'] );
}
}
break;
case 'order' :
// Factor $this_cost by the percentage if provided.
if ( $this_cost_percents ) {
$this_cost = $this->calc_percentage_adjustment( $this_cost, $this_cost_percents, $this_cost_mathop, $package['contents_cost'] );
}
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break;
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}
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// Per item rates
if ( is_array( $extra_rate['cost'] ) ) $extra_rate['cost']['order'] = $extra_rate['cost']['order'] + $this_cost;
// Per order or class rates
else $extra_rate['cost'] = $extra_rate['cost'] + $this_cost;
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$this->add_rate( $extra_rate );
}
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}
}
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/**
* Calculate the percentage adjustment for each shipping rate.
*
* @access public
* @param float $cost
* @param float $percent_adjustment
* @param string $percent_operator
* @param float $base_price
* @return float
*/
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;
}
/**
* order_shipping function.
*
* @access public
* @param array $package
* @return float
*/
function order_shipping( $package ) {
$cost = null;
$fee = null;
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if ( sizeof( $this->flat_rates ) > 0 ) {
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$found_shipping_classes = $this->find_shipping_classes( $package );
// Find most expensive class (if found)
foreach ( $found_shipping_classes as $shipping_class => $products ) {
if ( isset( $this->flat_rates[ $shipping_class ] ) ) {
if ( $this->flat_rates[ $shipping_class ]['cost'] > $cost ) {
$cost = $this->flat_rates[ $shipping_class ]['cost'];
$fee = $this->flat_rates[ $shipping_class ]['fee'];
}
} else {
// No matching classes so use defaults
if ( ! empty( $this->cost ) && $this->cost > $cost ) {
$cost = $this->cost;
$fee = $this->fee;
}
}
}
}
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// Default rates if set
if ( is_null( $cost ) && $this->cost !== '' ) {
$cost = $this->cost;
$fee = $this->fee;
} elseif ( is_null( $cost ) ) {
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// Set rates to 0 if nothing is set by the user
$cost = 0;
$fee = 0;
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}
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// Shipping for whole order
return $cost + $this->get_fee( $fee, $package['contents_cost'] );
}
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/**
* class_shipping function.
*
* @access public
* @param array $package
* @return float
*/
function class_shipping( $package ) {
$cost = null;
$fee = null;
$matched = false;
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if ( sizeof( $this->flat_rates ) > 0 || $this->cost !== '' ) {
// Find shipping classes for products in the cart.
$found_shipping_classes = $this->find_shipping_classes( $package );
// Store prices too, so we can calc a fee for the class.
$found_shipping_classes_values = array();
foreach ( $found_shipping_classes as $shipping_class => $products ) {
if ( ! isset( $found_shipping_classes_values[ $shipping_class ] ) ) {
$found_shipping_classes_values[ $shipping_class ] = 0;
}
foreach ( $products as $product ) {
$found_shipping_classes_values[ $shipping_class ] += $product['data']->get_price() * $product['quantity'];
}
}
// For each found class, add up the costs and fees
foreach ( $found_shipping_classes_values as $shipping_class => $class_price ) {
if ( isset( $this->flat_rates[ $shipping_class ] ) ) {
$cost += $this->flat_rates[ $shipping_class ]['cost'];
$fee += $this->get_fee( $this->flat_rates[ $shipping_class ]['fee'], $class_price );
$matched = true;
} elseif ( $this->cost !== '' ) {
// Class not set so we use default rate if its set
$cost += $this->cost;
$fee += $this->get_fee( $this->fee, $class_price );
$matched = true;
}
}
}
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// Total
if ( $matched ) {
return $cost + $fee;
} else {
return null;
}
}
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/**
* item_shipping function.
*
* @access public
* @param array $package
* @return array
*/
function item_shipping( $package ) {
// Per item shipping so we pass an array of costs (per item) instead of a single value
$costs = array();
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$matched = false;
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// Shipping per item
foreach ( $package['contents'] as $item_id => $values ) {
$_product = $values['data'];
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if ( $values['quantity'] > 0 && $_product->needs_shipping() ) {
$shipping_class = $_product->get_shipping_class();
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$fee = $cost = 0;
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if ( isset( $this->flat_rates[ $shipping_class ] ) ) {
$cost = $this->flat_rates[ $shipping_class ]['cost'];
$fee = $this->get_fee( $this->flat_rates[ $shipping_class ]['fee'], $_product->get_price() );
$matched = true;
} elseif ( $this->cost !== '' ) {
$cost = $this->cost;
$fee = $this->get_fee( $this->fee, $_product->get_price() );
$matched = true;
}
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$costs[ $item_id ] = ( ( $cost + $fee ) * $values['quantity'] );
}
}
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if ( $matched ) {
return $costs;
} else {
return null;
}
}
/**
* Finds and returns shipping classes and the products with said class.
*
* @access public
* @param mixed $package
* @return array
*/
public function find_shipping_classes( $package ) {
$found_shipping_classes = array();
// Find shipping classes for products in the cart
if ( sizeof( $package['contents'] ) > 0 ) {
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;
}
/**
* validate_additional_costs_field function.
*
* @access public
* @param mixed $key
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* @return bool
*/
function validate_additional_costs_table_field( $key ) {
return false;
}
/**
* generate_additional_costs_html function.
*
* @access public
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* @return string
*/
function generate_additional_costs_table_html() {
ob_start();
?>
<tr valign="top">
<th scope="row" class="titledesc"><?php _e( 'Costs', 'woocommerce' ); ?>:</th>
<td class="forminp" id="<?php echo $this->id; ?>_flat_rates">
<table class="shippingrows widefat" cellspacing="0">
<thead>
<tr>
<th class="check-column"><input type="checkbox"></th>
<th class="shipping_class"><?php _e( 'Shipping Class', 'woocommerce' ); ?></th>
<th><?php _e( 'Cost', 'woocommerce' ); ?> <a class="tips" data-tip="<?php _e( 'Cost, excluding tax.', 'woocommerce' ); ?>">[?]</a></th>
<th><?php _e( 'Handling Fee', 'woocommerce' ); ?> <a class="tips" data-tip="<?php _e( 'Fee excluding tax. Enter an amount, e.g. 2.50, or a percentage, e.g. 5%.', 'woocommerce' ); ?>">[?]</a></th>
</tr>
</thead>
<tfoot>
<tr>
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<th colspan="4"><a href="#" class="add button"><?php _e( 'Add Cost', 'woocommerce' ); ?></a> <a href="#" class="remove button"><?php _e( 'Delete selected costs', 'woocommerce' ); ?></a></th>
</tr>
</tfoot>
<tbody class="flat_rates">
<tr>
<td></td>
<td class="flat_rate_class"><?php _e( 'Any class', 'woocommerce' ); ?></td>
<td><input type="text" value="<?php echo esc_attr( wc_format_localized_price( $this->cost ) ); ?>" name="default_cost" placeholder="<?php _e( 'N/A', 'woocommerce' ); ?>" size="4" class="wc_input_price" /></td>
<td><input type="text" value="<?php echo esc_attr( wc_format_localized_price( $this->fee ) ); ?>" name="default_fee" placeholder="<?php _e( 'N/A', 'woocommerce' ); ?>" size="4" class="wc_input_price" /></td>
</tr>
<?php
$i = -1;
if ( $this->flat_rates ) {
foreach ( $this->flat_rates as $class => $rate ) {
$i++;
echo '<tr class="flat_rate">
<th class="check-column"><input type="checkbox" name="select" /></th>
<td class="flat_rate_class">
<select name="' . esc_attr( $this->id . '_class[' . $i . ']' ) . '" class="select">';
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if ( WC()->shipping->get_shipping_classes() ) {
foreach ( WC()->shipping->get_shipping_classes() as $shipping_class ) {
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echo '<option value="' . esc_attr( $shipping_class->slug ) . '" '.selected($shipping_class->slug, $class, false).'>'.$shipping_class->name.'</option>';
}
} else {
echo '<option value="">'.__( 'Select a class&hellip;', 'woocommerce' ).'</option>';
}
echo '</select>
</td>
<td><input type="text" value="' . esc_attr( $rate['cost'] ) . '" name="' . esc_attr( $this->id .'_cost[' . $i . ']' ) . '" placeholder="' . wc_format_localized_price( 0 ) . '" size="4" class="wc_input_price" /></td>
<td><input type="text" value="' . esc_attr( $rate['fee'] ) . '" name="' . esc_attr( $this->id .'_fee[' . $i . ']' ) . '" placeholder="' . wc_format_localized_price( 0 ) . '" size="4" class="wc_input_price" /></td>
</tr>';
}
}
?>
</tbody>
</table>
<script type="text/javascript">
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jQuery(function() {
jQuery('#<?php echo $this->id; ?>_flat_rates').on( 'click', 'a.add', function(){
var size = jQuery('#<?php echo $this->id; ?>_flat_rates tbody .flat_rate').size();
jQuery('<tr class="flat_rate">\
<th class="check-column"><input type="checkbox" name="select" /></th>\
<td class="flat_rate_class">\
<select name="<?php echo $this->id; ?>_class[' + size + ']" class="select">\
<?php
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if (WC()->shipping->get_shipping_classes()) :
foreach (WC()->shipping->get_shipping_classes() as $class) :
echo '<option value="' . esc_attr( $class->slug ) . '">' . esc_js( $class->name ) . '</option>';
endforeach;
else :
echo '<option value="">'.__( 'Select a class&hellip;', 'woocommerce' ).'</option>';
endif;
?>\
</select>\
</td>\
<td><input type="text" name="<?php echo $this->id; ?>_cost[' + size + ']" placeholder="<?php echo wc_format_localized_price( 0 ); ?>" size="4" class="wc_input_price" /></td>\
<td><input type="text" name="<?php echo $this->id; ?>_fee[' + size + ']" placeholder="<?php echo wc_format_localized_price( 0 ); ?>" size="4" class="wc_input_price" /></td>\
</tr>').appendTo('#<?php echo $this->id; ?>_flat_rates table tbody');
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return false;
});
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// Remove row
jQuery('#<?php echo $this->id; ?>_flat_rates').on( 'click', 'a.remove', function(){
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var answer = confirm("<?php _e( 'Delete the selected rates?', 'woocommerce' ); ?>");
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if (answer) {
jQuery('#<?php echo $this->id; ?>_flat_rates table tbody tr th.check-column input:checked').each(function(i, el){
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jQuery(el).closest('tr').remove();
});
}
return false;
});
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});
</script>
</td>
</tr>
<?php
return ob_get_clean();
}
/**
* process_flat_rates function.
*
* @access public
* @return void
*/
function process_flat_rates() {
// Save the rates
$flat_rate_class = array();
$flat_rate_cost = array();
$flat_rate_fee = array();
$flat_rates = array();
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if ( isset( $_POST[ $this->id . '_class'] ) ) $flat_rate_class = array_map( 'wc_clean', $_POST[ $this->id . '_class'] );
if ( isset( $_POST[ $this->id . '_cost'] ) ) $flat_rate_cost = array_map( 'stripslashes', $_POST[ $this->id . '_cost'] );
if ( isset( $_POST[ $this->id . '_fee'] ) ) $flat_rate_fee = array_map( 'stripslashes', $_POST[ $this->id . '_fee'] );
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// Get max key
$values = $flat_rate_class;
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ksort( $values );
$value = end( $values );
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$key = key( $values );
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for ( $i = 0; $i <= $key; $i++ ) {
if ( ! empty( $flat_rate_class[ $i ] ) && isset( $flat_rate_cost[ $i ] ) && isset( $flat_rate_fee[ $i ] ) ) {
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$flat_rate_cost[ $i ] = wc_format_decimal( $flat_rate_cost[$i] );
if ( ! strstr( $flat_rate_fee[$i], '%' ) ) {
$flat_rate_fee[ $i ] = wc_format_decimal( $flat_rate_fee[$i] );
} else {
$flat_rate_fee[ $i ] = wc_clean( $flat_rate_fee[$i] );
}
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// Add to flat rates array
$flat_rates[ urldecode( sanitize_title( $flat_rate_class[ $i ] ) ) ] = array(
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'cost' => $flat_rate_cost[ $i ],
'fee' => $flat_rate_fee[ $i ],
);
}
}
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update_option( $this->flat_rate_option, $flat_rates );
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$this->get_flat_rates();
}
/**
* save_default_costs function.
*
* @access public
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* @param array $fields
* @return array
*/
function save_default_costs( $fields ) {
$default_cost = ( $_POST['default_cost'] === '' ) ? '' : wc_format_decimal( $_POST['default_cost'] );
if ( ! strstr( $_POST['default_fee'], '%' ) ) {
$default_fee = ( $_POST['default_fee'] === '' ) ? '' : wc_format_decimal( $_POST['default_fee'] );
} else {
$default_fee = wc_clean( $_POST['default_fee'] );
}
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$fields['cost'] = $default_cost;
$fields['fee'] = $default_fee;
return $fields;
}
/**
* get_flat_rates function.
*
* @access public
* @return void
*/
function get_flat_rates() {
$this->flat_rates = array_filter( (array) get_option( $this->flat_rate_option ) );
}
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}