基于Woocommerce中产品类别的条件自定义结帐字段

我正在为一个非营利组织的网站使用woocommerce,该组织销售课程门票和活动门票 . 当有人报名参加课程时,需要列出他们的紧急联系信息并同意发布责任 . 当他们购买活动门票时,非营利组织不需要紧急联系信息或责任释放 . 所以...他们希望这些字段出现在woocommerce结账时,只要条件是该人正在检查一个类的票 . 合理?

几个月前,当他们第一次将这些类添加到网站时,我想出了如何添加自定义字段和自定义责任版本 . 我在woocommerce中创建了一个“类”产品类别,并且测试了该类别中购物车中的任何产品,因此我可以有条件地显示这些字段 .

所有这些函数都在我的functions.php文件中,我现在正在运行条件语句来检查每个函数中的“类”类别 . 我需要帮助学习如何检查“类”类别一次,然后运行显示字段的函数,验证字段,将数据添加到数据库并生成新的订单电子邮件 . 合理?

这是我目前的情况:

// Add fields for Emergency Contact & Medical Information to the checkout page
add_action('woocommerce_after_order_notes', 'customise_checkout_field');

function customise_checkout_field($checkout)
{

    // Check to see if there is a class in the cart
    // function is at the end
    $class_in_cart = is_conditional_product_in_cart( 'class' );

    // There is a class in the cart so show additional fields
    if ( $class_in_cart === true ) {

    echo '<div id="customise_checkout_field"><h3>' . __('Emergency Contact & Medical Information') . '</h3>';
    woocommerce_form_field('emergency_contact', array(
        'type' => 'text',
        'class' => array(
            'emergency-contact form-row-wide'
        ) ,
        'label' => __('Emergency Contact') ,
        'placeholder' => __('Please enter first & last name') ,
        'required' => true,
    ) , $checkout->get_value('emergency_contact'));
    woocommerce_form_field('emergency_contact_relationship', array(
        'type' => 'text',
        'class' => array(
            'emergency-contact-relationship form-row-wide'
        ) ,
        'label' => __('What is your relationship with this person?') ,
        'placeholder' => __('Example: Mother') ,
        'required' => true,
    ) , $checkout->get_value('emergency_contact_relationship'));
    woocommerce_form_field('emergency_contact_phone', array(
        'type' => 'text',
        'class' => array(
            'emergency-contact-phone form-row-wide'
        ) ,
        'label' => __('What is their phone number?') ,
        'placeholder' => __('(555) 555-5555') ,
        'required' => true,
    ) , $checkout->get_value('emergency_contact_phone'));
    woocommerce_form_field('medical_medicine', array(
        'type' => 'textarea',
        'class' => array(
            'medical-medicine form-row-wide'
        ) ,
        'label' => __('Do you have any medical conditions and are you taking any medications we need to be aware of?') ,
        'placeholder' => __('If not please write in "none"') ,
        'required' => true,
    ) , $checkout->get_value('medical_medicine'));
    echo '</div>';
    }
}

// Process emergency contact fields

add_action('woocommerce_checkout_process', 'custom_checkout_fields_process');

function custom_checkout_fields_process() {
    // Check to see if there is a class in the cart
    $class_in_cart = is_conditional_product_in_cart( 'class' );

    // There is a class in the cart so show additional fields
    if ( $class_in_cart === true ) {

        // if the field is set, if not then show an error message.
        if (!$_POST['emergency_contact']) wc_add_notice(__('Please list an emergency contact.') , 'error');
        if (!$_POST['emergency_contact_relationship']) wc_add_notice(__('Please indicate your relationship with your emergency contact.') , 'error');
        if (!$_POST['emergency_contact_phone']) wc_add_notice(__('Please list a phone number for your emergency contact.') , 'error');
        if (!$_POST['medical_medicine']) wc_add_notice(__('Please list any medications or write in "none".') , 'error');
    }
}

// Add emergency contact information to the database

add_action('woocommerce_checkout_update_order_meta', 'custom_checkout_fields_update_order_meta');

function custom_checkout_fields_update_order_meta($order_id) {
    // Check to see if there is a class in the cart
    $class_in_cart = is_conditional_product_in_cart( 'class' );

    // There is a class in the cart so show additional fields
    if ( $class_in_cart === true ) {
        if (!empty($_POST['emergency_contact'])) {
            update_post_meta($order_id, 'emergency_contact', sanitize_text_field($_POST['emergency_contact']));
        }
        if (!empty($_POST['emergency_contact_relationship'])) {
            update_post_meta($order_id, 'emergency_contact_relationship', sanitize_text_field($_POST['emergency_contact_relationship']));
        }
        if (!empty($_POST['emergency_contact_phone'])) {
            update_post_meta($order_id, 'emergency_contact_phone', sanitize_text_field($_POST['emergency_contact_phone']));
        }
        if (!empty($_POST['medical_medicine'])) {
            update_post_meta($order_id, 'medical_medicine', sanitize_text_field($_POST['medical_medicine']));
        }
    }
}

// Add the emergency contact fields to order email

add_filter( 'woocommerce_email_order_meta_keys', 'my_custom_checkout_field_order_meta_keys' );
function my_custom_checkout_field_order_meta_keys( $keys ) {
    // Check to see if there is a class in the cart
    $class_in_cart = is_conditional_product_in_cart( 'class' );

    // There is a class in the cart so show additional fields
    if ( $class_in_cart === true ) {
        echo '<h2>Emergency Contact & Medical Information:</h2>';
        $keys['Emergency Contact'] = 'emergency_contact';
        $keys['Emergency Contact Relationship'] = 'emergency_contact_relationship';
        $keys['Emergency Contact Phone'] = 'emergency_contact_phone';
        $keys['Medical Conditions & Medications'] = 'medical_medicine';
        return $keys;
    } // end class in cart condition
}

/*-----------------------------------------------------------------------------------------------------------------------------------------------*/

// Add custom checkboxes to woocommerce checkout page for Photo Release, Mailing List & Release of Liability
// add_action( 'woocommerce_after_order_notes', 'custom_checkout_fields' );
add_action( 'woocommerce_review_order_before_submit', 'custom_checkout_fields' );
function custom_checkout_fields() {
    echo '<div id="custom_checkout_fields">
    <h3>Mailing Lists</h3>
    <p>Mailing List boilerplate';

    woocommerce_form_field( 'mailing_consent', array(
        'type'      => 'checkbox',
        'class'     => array('input-checkbox'),
        'label'     => __('Please add me to Nonprofit\'s electronic and paper mailing lists.'),
        'required'  => false,
        'clear'     => true,
        'default'   => 1 //This will pre-select the checkbox
    ),  WC()->checkout->get_value( 'mailing_consent' ) );

    // Check to see if there is a class in the cart
    $class_in_cart = is_conditional_product_in_cart( 'class' );

    // There is a class in the cart so show additional fields
    if ( $class_in_cart === true ) {

        echo '<h3>Photo Release</h3>
        <p>Photo Release Boilerplate</p>';

        woocommerce_form_field( 'photo_consent', array(
            'type'      => 'checkbox',
            'class'     => array('input-checkbox'),
            'label'     => __('I agree to the Photo Release as outlined above.'),
            'required'  => false,
            'clear'     => true,
            'default'   => 1 //This will pre-select the checkbox
        ),  WC()->checkout->get_value( 'photo_consent' ) );

        echo '<h3>Release of Liability</h3>
        <p>Release of Liability Boilerplate</p>';

        woocommerce_form_field( 'liability_release', array(
            'type'      => 'checkbox',
            'class'     => array('input-checkbox'),
            'label'     => __('I agree to the Photo Release as outlined above.'),
            'required'  => true,
            'clear'     => true,
            'default'   => 1 //This will pre-select the checkbox
        ),  WC()->checkout->get_value( 'liability_release' ) );

    } // end class in cart condition

    echo '</div>';
}

// Show notice if customer doesn't check the Release of Liability checkbox
add_action( 'woocommerce_checkout_process', 'liability_release_not_given' );

function liability_release_not_given() {
    // Check to see if there is a class in the cart
    $class_in_cart = is_conditional_product_in_cart( 'class' );

    // There is a class in the cart so show additional fields
    if ( $class_in_cart === true ) {
        if ( ! (int) isset( $_POST['liability_release'] ) ) {
            wc_add_notice( __( 'You must agree to the Release of Liability to register for this class.  Please contact us with any questions.' ), 'error' );
        }
    } // end class in cart condition
}

// Save the custom checkout field in the order meta, when checkbox has been checked
add_action( 'woocommerce_checkout_update_order_meta', 'custom_checkout_field_update_order_meta', 10, 1 );
function custom_checkout_field_update_order_meta( $order_id ) {

    if ( ! empty( $_POST['mailing_consent'] ) )
        update_post_meta( $order_id, 'mailing_consent', $_POST['mailing_consent'] );

    if ( ! empty( $_POST['photo_consent'] ) )
        update_post_meta( $order_id, 'photo_consent', $_POST['photo_consent'] );

    if ( ! empty( $_POST['liability_release'] ) )
        update_post_meta( $order_id, 'liability_release', $_POST['liability_release'] );
}

/*-----------------------------------------------------------------------------------------------------------------------------------------------*/

// Display custom field results on the order edit page (backend)
// for various liability fields

add_action( 'woocommerce_admin_order_data_after_billing_address', 'display_custom_field_on_order_edit_pages', 10, 1 );
function display_custom_field_on_order_edit_pages( $order ){

    $mailing_consent = get_post_meta( $order->get_id(), 'mailing_consent', true );
    if( $mailing_consent == 1 )
        echo '<p>' . $order->billing_first_name . ' ' . $order->billing_last_name . ' agreed to the be added to Nonprofit\'s mailing lists.</p>';

    $photo_consent = get_post_meta( $order->get_id(), 'photo_consent', true );
    if( $photo_consent == 1 )
        echo '<p>' . $order->billing_first_name . ' ' . $order->billing_last_name . ' agreed to the Photo Release.</p>';

    $liability_release = get_post_meta( $order->get_id(), 'liability_release', true );
    if( $liability_release == 1 )
        echo '<p>' . $order->billing_first_name . ' ' . $order->billing_last_name . ' agreed to the Release of Liability.</p>';
}


/**
 * Check if Class is In cart
 *
 * https://wordimpress.com/create-conditional-checkout-fields-woocommerce/
 * https://businessbloomer.com/woocommerce-check-product-category-cart/
 *
 * @param $product_id
 *
 * @return bool
 */
function is_conditional_product_in_cart( $category_name ) {
    //Check to see if user has a class in their cart
    global $woocommerce;

    //flag no class in cart
    $class_in_cart = false;

    foreach ( $woocommerce->cart->get_cart() as $cart_item_key => $values ) {
        $_product = $values['data'];

    //  if ( $_product->cat === $category_id ) {
        //  //class is in cart!
            //$class_in_cart = true;

        if (has_term ( $category_name, 'product_cat', $_product->get_id() ) ) {
            //class is in cart!
            $class_in_cart = true;
        }
    }

    return $class_in_cart;

}

你可以告诉我,我从网上的各种来源拼凑了这个,我意识到这有点乱 . 目前条件声明:

// Check to see if there is a class in the cart
$class_in_cart = is_conditional_product_in_cart( 'class' );

// There is a class in the cart so show additional fields
if ( $class_in_cart === true ) {

每个功能都重复一次 . 我知道这不是很有效但我不确定如何解决它 . 我想做的是:

  • 测试"class"类别中的产品

  • 如果"class"然后运行所有功能以显示和处理紧急联系人字段和照片发布和责任字段的发布

  • 显示"join mailing list"协议,无论购物车中是否有"class"并且无论如何处理该字段 .

我尝试将所有内容包装在另一个函数中,但这破坏了代码 . 也许最好把它变成一个插件?

感谢您提供的任何想法和帮助 .

回答(1)

2 years ago

首先,您使用的条件函数代码实际上是旧的,过时的和 will not work 当购物车项目是产品变体时(因此对于可变产品) . 下面是紧凑且有效的条件函数......
它可以使用任何产品类别术语ID,slug,名称或值数组:

function is_product_cat_in_cart( $categories ) {
    foreach ( WC()->cart->get_cart() as $cart_item ) {
        if (has_term ( $categories, 'product_cat', $cart_item['product_id'] ) )
            return true;
    }
    return false;
}

现在你的其余代码有很多错误或很少的错误 .

它还使用过时或弃用的钩子,如:

  • woocommerce_checkout_update_order_meta 被一个非常合适的钩子所取代 .

  • woocommerce_email_order_meta_keys 因为很多时间而被弃用 .

您还可以在相同的钩子函数中将一些代码合并在一起 .

你不需要在任何地方使用条件函数 . 这只是结帐字段条件显示所需要的 .

这是您重新访问的代码(适用于woocommerce 3及以上版本):

// Add fields for Emergency Contact & Medical Information to the checkout page
add_action('woocommerce_after_order_notes', 'customise_checkout_field', 20, 1 );
function customise_checkout_field( $checkout ){
    $domain = 'woocommerce';

    // There is a class in the cart so show additional fields
    if ( is_product_cat_in_cart( 'class' ) ):

    echo '<div id="customise_checkout_field">
    <h3>' . __( 'Emergency Contact & Medical Information', $domain ) . '</h3>';

    woocommerce_form_field( 'emergency_contact', array(
        'type'          => 'text',
        'class'         => array( 'emergency-contact form-row-wide' ),
        'label'         => __( 'Emergency Contact', $domain ) ,
        'placeholder'   => __( 'Please enter first & last name', $domain ),
        'required'      => true,
    ), $checkout->get_value('emergency_contact') );

    woocommerce_form_field( 'emergency_contact_relationship', array(
        'type'          => 'text',
        'class'         => array( 'emergency-contact-relationship form-row-wide' ),
        'label'         => __( 'What is your relationship with this person?', $domain ),
        'placeholder'   => __( 'Example: Mother', $domain ) ,
        'required'      => true,
    ), $checkout->get_value('emergency_contact_relationship') );

    woocommerce_form_field( 'emergency_contact_phone', array(
        'type'          => 'text',
        'class'         => array( 'emergency-contact-phone form-row-wide' ),
        'label'         => __( 'What is their phone number?', $domain ),
        'placeholder'   => __( '(555) 555-5555', $domain ),
        'required'      => true,
    ), $checkout->get_value('emergency_contact_phone') );

    woocommerce_form_field( 'medical_medicine', array(
        'type'          => 'textarea',
        'class'         => array( 'medical-medicine form-row-wide' ) ,
        'label'         => __( 'Do you have any medical conditions and are you taking any medications we need to be aware of?', $domain ),
        'placeholder'   => __( 'If not please write in "none"', $domain ),
        'required'      => true,
    ) , $checkout->get_value('medical_medicine') );
    echo '</div>';

    endif;
}

// Add custom checkboxes to woocommerce checkout page for Photo Release, Mailing List & Release of Liability
add_action( 'woocommerce_review_order_before_submit', 'custom_checkout_fields' );
function custom_checkout_fields() {
    $checkout = WC()->checkout;
    $domain   = 'woocommerce';

    echo '<div id="custom_checkout_fields">
    <h3>'.__( 'Mailing Lists', $domain ).'</h3>
    <p>'.__( 'Mailing List boilerplate', $domain ).'</p>';

    woocommerce_form_field( 'mailing_consent', array(
        'type'      => 'checkbox',
        'class'     => array('input-checkbox'),
        'label'     => __( 'Please add me to Nonprofit\'s electronic and paper mailing lists.', $domain ),
        'required'  => false,
        'clear'     => true,
        'default'   => 1 //This will pre-select the checkbox
    ),  $checkout->get_value( 'mailing_consent' ) );

    // There is a class in the cart so show additional fields
    if ( is_product_cat_in_cart( 'class' ) ):

    echo '<h3>'.__( 'Photo Release', $domain ).'</h3>
    <p>'.__( 'Photo Release Boilerplate', $domain ).'</p>';

    woocommerce_form_field( 'photo_consent', array(
        'type'      => 'checkbox',
        'class'     => array('input-checkbox'),
        'label'     => __( 'I agree to the Photo Release as outlined above.', $domain ),
        'required'  => false,
        'clear'     => true,
        'default'   => 1 //This will pre-select the checkbox
    ),  $checkout->get_value( 'photo_consent' ) );

    echo '<h3>'.__( 'Release of Liability', $domain ).'</h3>
    <p>'.__( 'Release of Liability Boilerplate', $domain ).'</p>';

    woocommerce_form_field( 'liability_release', array(
        'type'      => 'checkbox',
        'class'     => array('input-checkbox'),
        'label'     => __( 'I agree to the Photo Release as outlined above.', $domain ),
        'required'  => true,
        'clear'     => true,
        'default'   => 1 //This will pre-select the checkbox
    ),  $checkout->get_value( 'liability_release' ) );

    endif;

    echo '</div>';
}

// Custom checkout fields validation
add_action('woocommerce_checkout_process', 'custom_checkout_fields_process');
function custom_checkout_fields_process() {
    $domain = 'woocommerce';

    if ( isset($_POST['emergency_contact']) && empty($_POST['emergency_contact']) )
        wc_add_notice( __( 'Please list an emergency contact.', $domain ) , 'error' );

    if ( isset($_POST['emergency_contact_relationship']) && empty($_POST['emergency_contact']) )
        wc_add_notice( __( 'Please indicate your relationship with your emergency contact.', $domain ), 'error' );

    if ( isset($_POST['emergency_contact_phone']) && empty($_POST['emergency_contact']) )
        wc_add_notice( __( 'Please list a phone number for your emergency contact.', $domain ), 'error' );

    if ( isset($_POST['medical_medicine']) && empty($_POST['emergency_contact']) )
        wc_add_notice( __( 'Please list any medications or write in "none".', $domain ), 'error' );

    // Other checkout fields
    if ( ! isset( $_POST['liability_release'] ) && ! $_POST['liability_release'] && isset($_POST['photo_consent']) )
        wc_add_notice( __( 'You must agree to the Release of Liability to register for this class.  Please contact us with any questions.', $domain ), 'error' );
}

// Save custom checkout fields in the order meta data
add_action( 'woocommerce_checkout_create_order', 'custom_checkout_fields_in_order_meta_data', 20, 2 );
function custom_checkout_fields_in_order_meta_data( $order, $data ) {

    if ( isset($_POST['emergency_contact']) && ! empty($_POST['emergency_contact']) )
        $order->update_meta_data( 'emergency_contact', sanitize_text_field($_POST['emergency_contact']) );

    if ( isset($_POST['emergency_contact_relationship']) && ! empty($_POST['emergency_contact_relationship']) )
        $order->update_meta_data( 'emergency_contact_relationship', sanitize_text_field($_POST['emergency_contact_relationship']) );

    if ( isset($_POST['emergency_contact_phone']) && ! empty($_POST['emergency_contact_phone']) )
        $order->update_meta_data( 'emergency_contact_phone', sanitize_text_field($_POST['emergency_contact_phone']) );

    if ( isset($_POST['medical_medicine']) && ! empty($_POST['medical_medicine']) )
        $order->update_meta_data( 'medical_medicine', sanitize_text_field($_POST['medical_medicine']) );

    if ( isset($_POST['mailing_consent']) && ! empty($_POST['mailing_consent']) )
        $order->update_meta_data( 'mailing_consent', '1' );

    if ( isset( $_POST['photo_consent']) && ! empty($_POST['photo_consent']) )
        $order->update_meta_data( 'photo_consent', '1' );

    if ( isset( $_POST['liability_release']) && ! empty($_POST['liability_release']) )
        $order->update_meta_data( 'liability_release', '1' );
}

// Add the emergency contact fields to email notifications
add_filter( 'woocommerce_email_order_meta_fields', 'custom_checkout_field_email_order_meta', 20, 3 );
function custom_checkout_field_email_order_meta( $fields, $sent_to_admin, $order ) {
    $domain = 'woocommerce';

    if( ! $order->get_meta( 'emergency_contact' ) )
        return $fields; // Exit if not set in the order

    echo '<h2>'.__( 'Emergency Contact & Medical Information', $domain ).'</h2>';

    $fields[] = array( 'label' => __( 'Emergency contact', $domain ),
        'value' => $order->get_meta( 'emergency_contact' ) );

    $fields[] = array( 'label' => __( 'Emergency Contact Relationship', $domain ),
        'value' => $order->get_meta( 'emergency_contact_relationship' ) );

    $fields[] = array( 'label' => __( 'Emergency Contact Phone', $domain ),
        'value' => $order->get_meta( 'emergency_contact_phone' ) );

    $fields[] = array( 'label' => __( 'Medical Conditions & Medications', $domain ),
        'value' => $order->get_meta( 'medical_medicine' ) );

    return $fields;
}

// Display some custom checkout fields in Order edit pages
add_action( 'woocommerce_admin_order_data_after_billing_address', 'display_custom_field_on_order_edit_pages', 20, 1 );
function display_custom_field_on_order_edit_pages( $order ){
    $domain = 'woocommerce';

    $billing_name = $order->get_billing_first_name().' '.$order->get_billing_last_name();

    if( $order->get_meta('mailing_consent') )
        echo '<p>' . $billing_name . __( ' agreed to the be added to Nonprofit\'s mailing lists.', $domain ).'</p>';

    if( $order->get_meta('photo_consent') )
        echo '<p>' . $billing_name . __( ' agreed to the Photo Release.', $domain ).'</p>';

    if( $order->get_meta('liability_release') )
        echo '<p>' . $billing_name . __( ' agreed to the Release of Liability.', $domain ).'</p>';
}

代码位于活动子主题(或活动主题)的function.php文件中 . 经过测试和工作 .

结论:如果某些代码在function.php文件中不起作用,它在插件中将无法正常工作 . 但如果您愿意,可以将其添加到插件中,如果您愿意的话 .