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Woocommerce中基於產品類別的條件自定義結帳字段

[英]Conditional custom checkout fields based on product category in Woocommerce

 原文  2018-06-08 18:17:06  9   1    php/ wordpress/ woocommerce/ checkout/ custom-fields

問題描述

我將 woocommerce 用於一個非營利組織的網站，該網站出售課程門票和活動門票。 當有人報名參加課程時，需要列出他們的緊急聯系信息並同意免除責任。 當他們購買活動門票時，非營利組織不需要緊急聯系信息或免責聲明。 所以......他們希望這些字段只出現在 woocommerce 結賬上，前提是該人使用課程票結賬。 有道理？

幾個月前，當他們第一次將類添加到網站時，我想出了如何添加自定義字段和自定義責任版本。 我在 woocommerce 中創建了一個“類”產品類別，並創建了一個函數來測試購物車中屬於該類別的任何產品，因此我可以有條件地顯示這些字段。

所有這些函數都在我的 functions.php 文件中，我現在正在運行條件語句來檢查每個函數中的“類”類別。 我需要幫助學習如何檢查“類”類別一次，然后運行顯示字段的函數，驗證字段，將數據添加到數據庫並生成新的訂單電子郵件。 有道理？

這是我目前所擁有的：

// 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;

}

正如您可能會說我從網絡上的各種來源拼湊起來的那樣，我意識到這有點混亂。 目前的條件語句：

// 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 ) {

對每個函數重復。 我知道這效率不高，但我不確定如何解決。 我想做的是：

  1. 測試“類”類別中的產品
  2. 如果為“class”，則運行所有功能以顯示和處理緊急聯系人字段和照片發布以及責任字段的發布
  3. 無論購物車中是否有“類”，都顯示“加入郵件列表”協議，並無論如何處理該字段。

我嘗試將所有內容都包裝在另一個函數中，但這破壞了代碼。 也許最好將其移動到插件中？

感謝您提供任何想法和幫助。

1 個解決方案

解決方案1
 3 已采納  2018-06-08 21:35:10

首先，您使用的條件函數代碼非常陳舊、過時，並且當購物車項目是產品變體時（對於可變產品）將不起作用。 下面是緊湊且有效的條件函數……
它可以與任何產品類別術語 ID、slug、名稱或一組值一起使用：

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;
}

現在你的其余代碼有很多錯誤或小錯誤。

它還使用過時或已棄用的鈎子，例如：

  • woocommerce_checkout_update_order_meta被一個非常合適的鈎子取代。
  • woocommerce_email_order_meta_keys已經棄用了很多時間。

您還可以將一些代碼合並到相同的掛鈎函數中。

你不需要到處都有條件函數。 它只是結帳字段條件顯示所需要的。

這是您重新訪問的代碼（適用於 woocommerce 版本 3 及更高版本） ：

// 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>';
}

代碼位於活動子主題（或活動主題）的 function.php 文件中。 測試和工作。

結論：如果某些代碼在 function.php 文件中不起作用，那么它在插件中也不會更好地工作。 但是，如果您願意，可以將其添加到插件中。

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