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...他们希望这些字段只出现在这个人用一张票的门票结账的情况下出现在woocommerce结账时。有意义吗？
我想出了几个月前他们第一次将这些课程添加到网站时添加自定义字段和自定义责任版本的方法。我创建了一个＆＃34;类＆＃34; woocommerce中的产品类别以及测试购物车中属于该类别的任何产品的功能，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＆＃34;类＆＃34;每个功能中的类别。我需要帮助学习如何检查＆＃34;类＆＃34;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。有意义吗？
这是我目前所拥有的：
// 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;
}
正如你可能会告诉我的那样，我从网上的各种来源拼凑起来，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 ) {
对每个功能重复。我知道这不是有效的，但我不确定如何解决它。我想做的是：
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？
感谢您提出的任何想法和帮助。
答案 0 :(得分：0)
首先，当购物车项目是产品变体（因此对于可变产品）时，您使用的条件函数代码实际上是旧的，过时的并且将无效。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。
它还使用过期或弃用的钩子，如：
woocommerce_checkout_update_order_meta被一个非常合适的钩子取代。woocommerce_email_order_meta_keys因很长时间而被弃用。您也可以在相同的钩子函数中合并一些代码。
您无需在任何地方使用条件函数。只需要结帐字段条件显示。
以下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>';
}
代码放在活动子主题（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，可以在插件中添加它，如果您愿意的话。