如果產品出現在WooCommerce完成的訂單中，則為某些產品ID自定義添加到購物車按鈕-有解無憂

我之前的問題已經回答了，我想進一步擴展答案

如何為特定產品添加自定義網址（產品是數字或物理型別，我認為這很常見）

這是我嘗試為特定產品撰寫的示例代碼的一部分：

// for the product ID 45 (for example) 
if( $product->id == 45 ){ 
    $add_to_cart_url = site_url('/custom-link/product-45/');
    $button_text = __('View order now', 'woocommerce');
}

我不知道如何添加/撰寫這個。有什么建議嗎？

uj5u.com熱心網友回復：

實際上，您的問題很簡單，只需添加 if/else 條件即可。您可以使用in_array()為 1 個或多個 productID 執行 if 條件。

注意：由于 WooCommerce 3 使用$product->get_id()而不是$product->id

對于 WooCommerce 商店和檔案頁面：

代替

// When NOT empty
if ( ! empty( $order_id ) ) {
    // Setting
    $button_text_view_order = __( 'View order now', 'woocommerce' );
    
    // Get view order url
    $view_order_url = wc_get_endpoint_url( 'view-order', $order_id, wc_get_page_permalink( 'myaccount' ) );
    
    // New link   text
    $sprintf = sprintf(
        '<a href="%s" >%s</a>',
        esc_url( $view_order_url ),
        esc_attr( isset( $args['class'] ) ? $args['class'] : 'button' ),
        esc_html( $button_text_view_order )
    );
}

和

// When NOT empty
if ( ! empty( $order_id ) ) {
    // Products IDs, several can be added, separated by a comma
    $product_ids = array( 45 );
    
    // Checks if a value exists in an array
    if ( in_array( $product->get_id(), $product_ids ) ) {
        // Button text
        $button_text = __( 'For certain productIDs', 'woocommerce' );
        
        // Button url
        $button_url = site_url( '/custom-link/' );          
    } else {    
        // Button text - view order
        $button_text = __( 'View order now', 'woocommerce' );
        
        // Button url - get view order url
        $button_url = wc_get_endpoint_url( 'view-order', $order_id, wc_get_page_permalink( 'myaccount' ) );
    }
    
    // New link   text
    $sprintf = sprintf(
        '<a href="%s" >%s</a>',
        esc_url( $button_url ),
        esc_attr( isset( $args['class'] ) ? $args['class'] : 'button' ),
        esc_html( $button_text )
    );
}

對于單個產品頁面：

代替

// When NOT empty
if ( ! empty( $order_id ) ) {
    // Remove default add to cart button and add a custom one
    remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_add_to_cart', 30 );
    
    // Add action, priority 30 and pass data to add action function
    add_action( 'woocommerce_single_product_summary', function() use ( $order_id ) {
        // Setting
        $button_text_view_order = __( 'View order now', 'woocommerce' );
        
        // Get view order url
        $view_order_url = wc_get_endpoint_url( 'view-order', $order_id, wc_get_page_permalink( 'myaccount' ) );
        
        echo '<a href="' . $view_order_url . '" >' . $button_text_view_order . '</a>';
    }, 30, 0 );
}

和

// When NOT empty
if ( ! empty( $order_id ) ) {
    // Remove default add to cart button and add a custom one
    remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_add_to_cart', 30 );
    
    // Products IDs, several can be added, separated by a comma
    $product_ids = array( 30 );
    
    // Checks if a value exists in an array
    if ( in_array( $product->get_id(), $product_ids ) ) {
        // Button text
        $button_text = __( 'For certain productIDs', 'woocommerce' );
        
        // Button url
        $button_url = site_url( '/custom-link/' );          
    } else {    
        // Button text - view order
        $button_text = __( 'View order now', 'woocommerce' );
        
        // Button url - get view order url
        $button_url = wc_get_endpoint_url( 'view-order', $order_id, wc_get_page_permalink( 'myaccount' ) );
    }
    
    // Add action, priority 30 and pass data to add action function
    add_action( 'woocommerce_single_product_summary', function() use ( $button_text, $button_url ) {            
        // New custom button, adjust classes if necessary (theme related)
        echo '<a href="' . $button_url . '" >' . $button_text . '</a>';
    }, 30, 0 );
}

完整的最終結果：

function get_order_id_by_product_id( $product_id ) {
    global $wpdb;
    
    // Get user ID
    $user_id = get_current_user_id();

    // Get order ID by product ID
    $order_id = $wpdb->get_var( "
        SELECT p.ID FROM {$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 {$wpdb->prefix}woocommerce_order_itemmeta AS woim ON woi.order_item_id = woim.order_item_id
        WHERE p.post_status IN ( 'wc-completed' )
        AND pm.meta_key = '_customer_user'
        AND pm.meta_value = '$user_id'
        AND woim.meta_key IN ( '_product_id', '_variation_id' )
        AND woim.meta_value = '$product_id'
        LIMIT 1
    " );

    // Return
    return $order_id;
}

// On WooCommerce shop and archives pages
function filter_woocommerce_loop_add_to_cart_link( $sprintf, $product, $args ) {
    // Only for logged in users
    if ( ! is_user_logged_in() ) return $sprintf;
    
    // Only for single type products
    if ( ! $product->is_type( 'simple' ) ) return $sprintf;
    
    // Call fuction and get order ID
    $order_id = get_order_id_by_product_id( $product->get_id() );
    
    // When NOT empty
    if ( ! empty( $order_id ) ) {
        // Products IDs, several can be added, separated by a comma
        $product_ids = array( 30 );
        
        // Checks if a value exists in an array
        if ( in_array( $product->get_id(), $product_ids ) ) {
            // Button text
            $button_text = __( 'For certain productIDs', 'woocommerce' );
            
            // Button url
            $button_url = site_url( '/custom-link/' );          
        } else {    
            // Button text - view order
            $button_text = __( 'View order now', 'woocommerce' );
            
            // Button url - get view order url
            $button_url = wc_get_endpoint_url( 'view-order', $order_id, wc_get_page_permalink( 'myaccount' ) );
        }
        
        // New link   text
        $sprintf = sprintf(
            '<a href="%s" >%s</a>',
            esc_url( $button_url ),
            esc_attr( isset( $args['class'] ) ? $args['class'] : 'button' ),
            esc_html( $button_text )
        );
    }
    
    return $sprintf;
}
add_filter( 'woocommerce_loop_add_to_cart_link', 'filter_woocommerce_loop_add_to_cart_link', 10, 3 );

// On single product page, replacing the single add to cart product button by a custom button
function action_woocommerce_single_product_summary() {
    global $product;

    // Only for logged in users
    if ( ! is_user_logged_in() ) return;
    
    // Only for single type products
    if ( ! $product->is_type( 'simple' ) ) return;
    
    // Call fuction and get order ID
    $order_id = get_order_id_by_product_id( $product->get_id() );
    
    // When NOT empty
    if ( ! empty( $order_id ) ) {
        // Remove default add to cart button and add a custom one
        remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_add_to_cart', 30 );
        
        // Products IDs, several can be added, separated by a comma
        $product_ids = array( 30 );
        
        // Checks if a value exists in an array
        if ( in_array( $product->get_id(), $product_ids ) ) {
            // Button text
            $button_text = __( 'For certain productIDs', 'woocommerce' );
            
            // Button url
            $button_url = site_url( '/custom-link/' );          
        } else {    
            // Button text - view order
            $button_text = __( 'View order now', 'woocommerce' );
            
            // Button url - get view order url
            $button_url = wc_get_endpoint_url( 'view-order', $order_id, wc_get_page_permalink( 'myaccount' ) );
        }
        
        // Add action, priority 30 and pass data to add action function
        add_action( 'woocommerce_single_product_summary', function() use ( $button_text, $button_url ) {            
            // New custom button, adjust classes if necessary (theme related)
            echo '<a href="' . $button_url . '" >' . $button_text . '</a>';
        }, 30, 0 );
    }
}
add_action( 'woocommerce_single_product_summary', 'action_woocommerce_single_product_summary', 1 );

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