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php - 允许客户在 WooCommerce 中设置产品价格并通过某些验证添加到购物车

问题描述

我正在开发一种礼品卡产品，我需要客户能够设置价格，只要它是 100 或更多。问题是，我不确定如何创建值检查。

然后，客户应该能够像往常一样添加到购物车并像往常一样结帐。

如果产品被分配到礼品卡类别，我已经包含了remove_action产品价格（由于某种原因不起作用）。

字段输入已经创建，数据应该被转移到购物车、结账和订单中——但由于某种原因它不起作用。

下一步是将产品价格设置为客户提交的礼品卡价值（只要它是 100 或更多），并将其作为产品价格显示在购物车和结账处。

如果有人可以审查并帮助我，那就太棒了。

add_action( 'woocommerce_before_add_to_cart_form', 'giftcard_price_field' );
function giftcard_price_field() {
global $product;

    if( has_term('giftcard', 'product_cat', $product->get_id() ) ) {
    
    // if the product is assigned to the giftcard category, remove the product price
    remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_price', 10 );

    // add a new input field for the price, allowing the customer to set the price
    echo '<div class="giftcard-product-price">
    <label for="giftcard-product-price">Giftcard value: </label>
    <input type="text" id="giftcard-product-price" name="giftcard-product-price" placeholder="Giftcard value" maxlength="1000">
    </div>';
    }
}

add_filter( 'woocommerce_add_cart_item_data', 'giftcard_price_field_cart_data', 10, 3 ); 
function giftcard_price_field_cart_data( $cart_item_data, $product_id, $variation_id ) {

    if( ! empty ( $_POST[ 'giftcard-product-price' ] ) ) {

        // need to check that the value is NOT below 100 and if so, create a wc_notice warning
        $cart_item_data['giftcard-product-price'] = sanitize_text_field( $_POST['giftcard-product-price']);
    }

    return $cart_item_data;
}

add_filter( 'woocommerce_get_item_data', 'giftcard_price_field_display_data', 10, 2 ); 
function giftcard_price_field_display_data( $item_data, $cart_item ) {

    if( ! empty ( $cart_item[ 'giftcard-product-price' ] ) ) {

    $item_data[] = array (
    'key' => 'Giftcard value',
    'value' => $cart_item['giftcard-product-price'],
    'display' => '',
    );
}
    return $item_data;
}

add_action( 'woocommerce_checkout_create_order_line_item', 'giftcard_price_field_order_data', 10, 4 ); 
function giftcard_price_field_order_data( $item, $cart_item_key, $values, $order ) {

    if( ! empty ( $values[ 'giftcard-product-price' ] ) ) {

        $item->add_meta_data( 'Giftcard value', $values['giftcard-product-price'] );
    }
}

标签： phpwordpressvalidationwoocommerceproduct

解决方案

  • giftcard_product_price如果在单个产品页面上添加一个新字段“ ”has_term()
  • 去除单品页面原品价格
  • 添加了各种验证并且是可能的
  • 产品（礼品卡）的价格调整为客户输入的价格
function giftcard_price_field() {
    global $product;
    
    // Instanceof
    if ( $product instanceof WC_Product ) {
        
        // Set category(ies)
        $cats = array ( 'giftcard' );

        // True
        if ( has_term( $cats, 'product_cat', $product->get_id() ) ) {
            // add a new input field for the price, allowing the customer to set the price
            echo '<div class="giftcard-product-price">
            <label for="giftcard-product-price">Giftcard value: </label>
            <input type="text" id="giftcard_product_price" name="giftcard_product_price" placeholder="Giftcard value" maxlength="1000">
            </div>';
        }
    }
}
add_action( 'woocommerce_before_add_to_cart_button', 'giftcard_price_field', 10, 0 );

// Remove price
function action_woocommerce_single_product_summary() {
    global $product;
    
    // Instanceof
    if ( $product instanceof WC_Product ) {
        
        // Set category(ies)
        $cats = array ( 'giftcard' );

        // True
        if ( has_term( $cats, 'product_cat', $product->get_id() ) ) {   
            remove_action('woocommerce_single_product_summary','woocommerce_template_single_price', 10 );
        }
    }
}
add_action( 'woocommerce_single_product_summary', 'action_woocommerce_single_product_summary', 5 );

// Validate
function filter_woocommerce_add_to_cart_validation( $passed, $product_id, $quantity, $variation_id = null, $variations = null ) {
    // Isset
    if ( isset ( $_POST['giftcard_product_price'] ) ) {
        $giftcard_product_price = $_POST['giftcard_product_price'];

        // Error = empty, not numeric or less than 100
        if ( empty ( $giftcard_product_price ) ) {
            wc_add_notice( __( 'Field is empty', 'woocommerce' ), 'error' );
            $passed = false;
        } elseif ( ! is_numeric ( $giftcard_product_price ) ) {
            wc_add_notice( __( 'NOT a number or a numeric string', 'woocommerce' ), 'error' );
            $passed = false;                
        } elseif ( $giftcard_product_price < 100 ) {
            wc_add_notice( __( 'Less than 100', 'woocommerce' ), 'error' );
            $passed = false;                
        }   
    }
    
    return $passed;
}
add_filter( 'woocommerce_add_to_cart_validation', 'filter_woocommerce_add_to_cart_validation', 10, 5 );

function filter_add_cart_item_data( $cart_item_data, $product_id, $variation_id ) {
    if ( isset ( $_POST['giftcard_product_price'] ) ) {
        $cart_item_data['giftcard_product_price'] = sanitize_text_field( $_POST['giftcard_product_price'] );
    }
    
    return $cart_item_data; 
}
add_filter( 'woocommerce_add_cart_item_data', 'filter_add_cart_item_data', 10, 3 );

// Set price
function action_woocommerce_before_calculate_totals( $cart ) {
    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    if ( did_action( 'woocommerce_before_calculate_totals' ) >= 2 )
        return;

    // Loop through cart items
    foreach ( $cart->get_cart() as $cart_item ) {
        if ( isset ( $cart_item['giftcard_product_price'] ) ) {
            $cart_item['data']->set_price( $cart_item['giftcard_product_price'] );
        }
    }
}
add_action( 'woocommerce_before_calculate_totals', 'action_woocommerce_before_calculate_totals', 10, 1 );

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