Woocommerce Add Custom Data to Woocommerce orders II

<?php

/**
 * Define the new custom meta product field
 **/
$product_addons = array(
    array(
        'name' => 'Deliverydate',
        'description' => '',
        'type' => 'custom',
        'position' => 0,
        'options' => array(
            array(
                'label' => 'Deliverydate',
                'price' => ''
            )
        ),
        'required' => 1
    )
);






add_action('woocommerce_before_add_to_cart_button', 'product_custom_addons');
/**
 * Add custom input fields to the single product
 **/
function product_custom_addons() {
    global $post, $product_addons;

    if (is_array($product_addons) && sizeof($product_addons)>0) foreach ($product_addons as $addon) :

        if (!isset($addon['name'])) continue;

        ?>
        <div class="product-addon product-addon-<?php echo sanitize_title($addon['name']); ?>">
            <?php if ($addon['name']) : ?><h3><?php echo wptexturize($addon['name']); ?> <?php if ($addon['type']=='file_upload') echo sprintf(__('(max size %s)', 'wc_product_addons'), $this->max_upload_size()); ?></h3><?php endif; ?>
            <?php if ($addon['description']) : ?><p><?php echo wptexturize($addon['description']); ?></p><?php endif; ?>
            <?php
            switch ($addon['type']) :

                case "custom" :
                    foreach ($addon['options'] as $option) :

                        $current_value = (isset($_POST['addon-' . sanitize_title( $addon['name'] ) . '-' . sanitize_title( $option['label'] )])) ? $_POST['addon-' . sanitize_title( $addon['name'] ) . '-' . sanitize_title( $option['label'] )] : '';

                        $price = ($option['price']>0) ? ' (' . woocommerce_price($option['price']) . ')' : '';
                        echo '<p class="form-row form-row-wide"><label>'. wptexturize($option['label']) . $price .': <input type="text" class="input-text" name="addon-' . sanitize_title( $addon['name'] ) . '-' . sanitize_title( $option['label'] ) .'" value="'.$current_value.'" /></label></p>';

                    endforeach;
                break;

            endswitch;
            ?>
            <div class="clear"></div>
        </div>
        <?php
    endforeach;

}







add_filter( 'woocommerce_add_cart_item_data', 'add_cart_item_custom_data', 10, 2 );
/**
 * Add custom input data to the cart item
 **/
function add_cart_item_custom_data( $cart_item_meta, $product_id ) {
    global $woocommerce, $product_addons;

    $cart_item_meta['addons'] = array();

    if (is_array($product_addons) && sizeof($product_addons)>0) foreach ($product_addons as $addon) :

        if (!isset($addon['name'])) continue;

        switch ($addon['type']) :

            case "custom" :

                // Posted var = label, value = custom
                foreach ($addon['options'] as $option) :

                    $posted = (isset( $_POST['addon-' . sanitize_title( $addon['name'] ) . '-' . sanitize_title( $option['label'] )] )) ? $_POST['addon-' . sanitize_title( $addon['name'] ) . '-' . sanitize_title( $option['label'] )] : '';

                    if (!$posted) continue;

                    $cart_item_meta['addons'][] = array(
                        'name'      => esc_attr( $option['label'] ),
                        'value'     => esc_attr( stripslashes( trim( $posted ) ) ),
                        'price'     => esc_attr( $option['price'] )
                    );

                endforeach;

            break;

        endswitch;

    endforeach;

    return $cart_item_meta;

}






add_filter( 'woocommerce_get_cart_item_from_session', 'get_cart_custom_item_from_session', 10, 2 );
/**
 * Get custom meta data from session
 **/
function get_cart_custom_item_from_session( $cart_item, $values ) {

    if (isset($values['addons'])) :
        $cart_item['addons'] = $values['addons'];

        $cart_item = add_custom_cart_item( $cart_item );
    endif;

    return $cart_item;

}






add_filter( 'woocommerce_get_item_data', 'get_item_custom_data', 10, 2 );
/**
 * Get product item data
 **/
function get_item_custom_data( $other_data, $cart_item ) {

    if (isset($cart_item['addons'])) :

        foreach ($cart_item['addons'] as $addon) :

            $name = $addon['name'];
            if ($addon['price']>0) $name .= ' (' . woocommerce_price($addon['price']) . ')';

            $other_data[] = array(
                'name' => $name,
                'value' => $addon['value'],
                'display' => isset($addon['display']) ? $addon['display'] : ''
            );

        endforeach;

    endif;

    return $other_data;

}





add_filter( 'woocommerce_add_cart_item', 'add_custom_cart_item', 10, 1 );
/**
 * Add cart item
 **/
function add_custom_cart_item( $cart_item ) {

    // Adjust price if addons are set
    if (isset($cart_item['addons'])) :

        $extra_cost = 0;

        foreach ($cart_item['addons'] as $addon) :

            if ($addon['price']>0) $extra_cost += $addon['price'];

        endforeach;

        $cart_item['data']->adjust_price( $extra_cost );

    endif;

    return $cart_item;

}





add_action( 'woocommerce_order_item_meta', 'order_item_custom_meta', 10, 2 );
/**
 * Add custom meta data to order
 **/
function order_item_custom_meta( $item_meta, $cart_item ) {

    // Add the fields
    if (isset($cart_item['addons'])) :

        foreach ($cart_item['addons'] as $addon) :

            $name = $addon['name'];
            if ($addon['price']>0) $name .= ' (' . strip_tags(woocommerce_price($addon['price'])) . ')';

            $item_meta->add( $name, $addon['value'] );

        endforeach;

    endif;

}






add_filter( 'woocommerce_add_to_cart_validation', 'validate_add_custom_cart_item', 10, 3 );
/**
 * Validate the custom meta field before adding to cart
 **/
function validate_add_custom_cart_item( $passed, $product_id, $qty ) {
    global $woocommerce, $product_addons;

    if (is_array($product_addons) && sizeof($product_addons)>0) foreach ($product_addons as $addon) {

        if (!isset($addon['name'])) continue;
        if (!isset($addon['required'])) continue;

        if ($addon['required']) {

            switch ($addon['type']) :

                case "custom" :

                    foreach ($addon['options'] as $option) {

                        $posted = (isset( $_POST['addon-' . sanitize_title( $addon['name'] ) . '-' . sanitize_title( $option['label'] )] )) ? $_POST['addon-' . sanitize_title( $addon['name'] ) . '-' . sanitize_title( $option['label'] )] : '';

                        if (!$posted || sizeof($posted)==0) {
                            $passed = false;
                            break;
                        }
                    }

                break;

            endswitch;

            if (!$passed) {
                $woocommerce->add_error( sprintf( __('"%s" is a required field.', 'woocommerce'), $addon['name']) );
                break;
            }
        }

        do_action('woocommerce_validate_posted_addon_data', $addon);

    }

    return $passed;
}