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TA貢獻1856條經驗 獲得超17個贊
首先,您可以使用wc_customer_bought_product()
中的以下增強條件函數(基于與 相同的源代碼)?,而不是使用。此功能將處理您的可變產品情況。?wc_customer_bought_product()
// Conditional function( stackOverFlow answer: https://stackoverflow.com/a/46217461/3730754 )
function has_bought_items( $user_var = 0,? $product_ids = 0 ) {
? ? global $wpdb;
? ??
? ? // Based on user ID (registered users)
? ? if ( is_numeric( $user_var) ) {?
? ? ? ? $meta_key? ? ?= '_customer_user';
? ? ? ? $meta_value? ?= $user_var == 0 ? (int) get_current_user_id() : (int) $user_var;
? ? }?
? ? // Based on billing email (Guest users)
? ? else {?
? ? ? ? $meta_key? ? ?= '_billing_email';
? ? ? ? $meta_value? ?= sanitize_email( $user_var );
? ? }
? ??
? ? $paid_statuses? ? = array_map( 'esc_sql', wc_get_is_paid_statuses() );
? ? $product_ids? ? ? = is_array( $product_ids ) ? implode(',', $product_ids) : $product_ids;
? ? $line_meta_value? = $product_ids !=? ( 0 || '' ) ? 'AND woim.meta_value IN ('.$product_ids.')' : 'AND woim.meta_value != 0';
? ? // Count the number of products
? ? $count = $wpdb->get_var( "
? ? ? ? SELECT COUNT(p.ID) FROM {$wpdb->prefix}posts AS p
? ? ? ? INNER JOIN {$wpdb->prefix}postmeta AS pm ON p.ID = pm.post_id
? ? ? ? INNER JOIN {$wpdb->prefix}woocommerce_order_items AS woi ON p.ID = woi.order_id
? ? ? ? INNER JOIN {$wpdb->prefix}woocommerce_order_itemmeta AS woim ON woi.order_item_id = woim.order_item_id
? ? ? ? WHERE p.post_status IN ( 'wc-" . implode( "','wc-", $paid_statuses ) . "' )
? ? ? ? AND pm.meta_key = '$meta_key'
? ? ? ? AND pm.meta_value = '$meta_value'
? ? ? ? AND woim.meta_key IN ( '_product_id', '_variation_id' ) $line_meta_value?
? ? " );
? ? // Return true if count is higher than 0 (or false)
? ? return $count > 0 ? true : false;
}
您還無法獲取訂單或訂單商品...相反,您將檢查購物車商品。
然后這是您重新訪問的代碼,用于按照要求處理所有類型的客戶和可變產品:
add_action('woocommerce_checkout_process', 'wc_action_checkout_process' );
function wc_action_checkout_process() {
? ? $user_id = get_current_user_id();
? ? // 1. - For logged in users
? ? if( $user_id > 0 ) {
? ? ? ? $user_var = $user_id;
? ? }
? ? // 2. - For others
? ? else {
? ? ? ? if ( isset($_POST['billing_email']) && ! empty($_POST['billing_email']) ) {
? ? ? ? ? ? $email = sanitize_email( $_POST['billing_email'] );
? ? ? ? ? ? $user? = get_user_by( 'email', $email );
? ? ? ? ? ? // 2.a - When a user exist for the billing email return an error notice
? ? ? ? ? ? if ( is_a($user, 'WP_User') ) {
? ? ? ? ? ? ? ? wc_add_notice( sprintf( __('The email "%s" is already registered for "%s" user name. Please login.'), $email, $user->user_login ), 'error' );
? ? ? ? ? ? }
? ? ? ? ? ? // 2.b - User doesn't exits (real "guest")
? ? ? ? ? ? else {
? ? ? ? ? ? ? ? $user_var = $email;
? ? ? ? ? ? }
? ? ? ? }
? ? }
? ? // Loop through cart items to check products
? ? foreach ( WC()->cart->get_cart() as $cart_item ) {
? ? ? ? if ( has_bought_items( $user_var,? $cart_item['product_id'] ) ) {
? ? ? ? ? ? wc_add_notice( sprintf( __('You have already purchased "%s" product before. You can only purchase it once.'), $cart_item['data']->get_name() ), 'error' );
? ? ? ? }
? ? }
}
代碼位于活動子主題(或活動主題)的functions.php 文件中。經過測試并有效。
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