Woocommerce 结帐页面上获取购物车中特定商品的数量

PetitQ WordPress教程 2021-10-18 650 0 0

我试图在结帐屏幕中显示自定义字段，这些字段以 2 件事为条件。

>如果产品#1769 和/或产品#1770 在客户的购物车中。
>当前购物车中的#1769 和/或#1770 的数量将决定要显示的自定义字段的数量。

也想出现在这里？联系我们吧

现在我已经通过以下方式处理了#1：

```
/**
```
```
* Check to see what is in the cart
```
```
*
```
```
* @param $product_id
```
```
*
```
```
* @return bool
```
```
*/
```

function conditional_product_in_cart( $product_id ) {

    //Check to see if user has product in cart

```
    global $WooCommerce;
```
```
 
```
```
    $check_in_cart = false;
```
```
 
```

    foreach ( $woocommerce->cart->get_cart() as $cart_item_key => $values ) {

```
        $_product = $values['data'];
```
```
 
```

        if ( $_product->id === $product_id ) {

```
            $check_in_cart = true;
```
```
        }       
```
```
    }
```
```
    return $check_in_cart;
```
```
}
```

function checkout_register_names( $checkout ) {

```
 
```

$check_in_cart = conditional_product_in_cart(1769);

```
 
```

    // Product id 1769 is in cart so show custom fields

```
    if ($check_in_cart === true ) {
```

    // Display custom fields for 1769...

    woocommerce_form_field( 'golf_field_one', array(

```
    'type'          => 'text',
```

    'class'         => array('my-field-class form-row-wide'),

```
    'label'         => __('Golfer #1'),
```
```
    'placeholder'       => __('Name'),
```

    ), $checkout->get_value( 'golf_field_one' ));

    woocommerce_form_field( 'golf_field_two', array(

```
    'type'          => 'text',
```

    'class'         => array('my-field-class form-row-wide'),

```
    'label'         => __('Golfer #2'),
```
```
    'placeholder'       => __('Name'),
```

    ), $checkout->get_value( 'golf_field_two' ));

```
    //etc...
```
```
    }
```

$check_in_cart = conditional_product_in_cart(1770);

```
 
```

    // Product id 1770 is in cart so show custom fields

```
    if ($check_in_cart === true ) {
```

    // Display custom fields for 1770...

    woocommerce_form_field( 'dinner_field_one', array(

```
    'type'          => 'text',
```

    'class'         => array('my-field-class form-row-wide'),

    'label'         => __('Dinner Name #1'),

```
    'placeholder'       => __('Name'),
```

    ), $checkout->get_value( 'dinner_field_one' ));

    woocommerce_form_field( 'dinner_field_two', array(

```
    'type'          => 'text',
```

    'class'         => array('my-field-class form-row-wide'),

    'label'         => __('Dinner Name #2'),

```
    'placeholder'       => __('Name'),
```

    ), $checkout->get_value( 'dinner_field_two' ));

```
    //etc...
```
```
    }
```
```
}
```

以上代码将有条件地显示我在每个产品下设置的所有 woocommerce_form_field(),仅当该产品位于客户的购物车中时。现在我需要做的是根据购物车中每种产品#1769 或#1770 的数量显示一定数量的 woocommerce_form_field()。

因此如果有两(2)个产品#1769,，则应显示两个字段。如果有两(2)个产品#1769 和一个(1)产品#1770，则应显示三个总字段(两个用于产品#1769,一个用于产品#1770)。

在任何给定客户的购物车中，每个产品最多只会添加四个，因此将每个表单字段包装在 if()中并检查以下内容并不是一件大事：

```
if([quantity of product 1769] >= 1) {
```
```
    show first woocommerce_form_field()
```
```
}
```
```
if([quantity of product 1769 >= 2) {
```

    show second woocommerce_form_field()

```
} //etc... 
```
```
// Repeat for product 1770...
```

我尝试添加$qty_in_cart = $values [‘quantity’];在第一个函数 conditional_product_in_cart 中的 foreach()，但似乎不想给我任何东西。当我检查是否(isset($qty_in_cart))时，它没有设置。

我觉得我很亲密，但是我无法弄清楚我错过了什么，任何帮助将不胜感激。我正在执行同样的任务，我在 WooTickets 和 WooCommerce 上使用的代码片段可能对您有所帮助：

```
if (    
```

        in_array( 'woocommerce/woocommerce.php', apply_filters( 'active_plugins', get_option( 'active_plugins' ) ) ) &&

        in_array( 'wootickets/wootickets.php', apply_filters( 'active_plugins', get_option( 'active_plugins' ) ) )

```
    ) {
```
```
    /**
```
```
     * Add the field to the checkout
```
```
     **/
```

    add_action('woocommerce_after_order_notes', 'wt_attendee_details');

    function wt_attendee_details( $checkout ) {

```
 
```

        $attendee_count = wt_count_attendees();

```
 
```
```
        if($attendee_count > 0) {
```

            echo "</div></div>"; //close the Billing Address section to create new group of fields

            echo "<div id='attendee_details'><div>"; //automatically be closed from 2 Billing Address's div - </div></div>

            echo '<h3>'.__('All Event Attendees and/or clients who are ordering DVDs, please add your name and email again.').'</h3>';

            for($n = 1; $n <= $attendee_count; $n++ ) {

                woocommerce_form_field( 'attendee_name_'.$n, array(

                    'type'          => 'text',

                    'class'         => array('form-row form-row-first'),

                    'label'         => __('Name'),

                    'placeholder'   => __('name'),

                    'required'      => true,

                ), $checkout->get_value( 'attendee_name_'.$n ));

                woocommerce_form_field( 'attendee_email_'.$n, array(

                    'type'          => 'text',

                    'class'         => array('form-row validate-email'),

                    'label'         => __('Email'),

                    'placeholder'       => __('email'),

                    'required'      => true,

                ), $checkout->get_value( 'attendee_email_'.$n ));

                woocommerce_form_field( 'attendee_phone_'.$n, array(

                    'type'          => 'text',

                    'class'         => array('form-row form-row-last'),

                    'label'         => __('Phone'),

                    'placeholder'   => __(''),

                ), $checkout->get_value( 'attendee_phone_'.$n ));

```
            }
```

            echo "<style type='text/css'>

                        #attendee_details .form-row {

                            float: left;

                            margin-right: 2%;

```
                            width: 31%;
```
```
                        }
```

                        #attendee_details .form-row-last {

                            margin-right: 0;

```
                        }
```
```
                    </style>";
```
```
        }
```

        //echo "Attendees: " . $attendee_count;

```
    }
```
```
 
```
```
    /**
```
```
     * Process the checkout
```
```
     **/
```

    add_action('woocommerce_checkout_process', 'wt_attendee_fields_process');

```
 
```

    function wt_attendee_fields_process() {

```
        global $woocommerce;
```

        $attendee_count = wt_count_attendees();

```
 
```

        for($n = 1; $n <= $attendee_count; $n++ ) {

            if (!$_POST['attendee_email_'.$n] || !$_POST['attendee_name_'.$n])

```
                $error = true;
```
```
                break;
```
```
        }
```
```
        if($error) {
```

            $woocommerce->add_error( __('Please complete the attendee details.') );

```
        }
```
```
 
```
```
    }
```
```
 
```
```
    /**
```

     * Update the order meta with field value

```
     **/
```

    add_action('woocommerce_checkout_update_order_meta', 'wt_attendee_update_order_meta');

```
 
```

    function wt_attendee_update_order_meta( $order_id ) {

```
 
```

        $attendee_count = wt_count_attendees();

        for($n = 1; $n <= $attendee_count; $n++ ) {

            if ($_POST['attendee_name_'.$n]) update_post_meta( $order_id, $n.' Attendee Name', esc_attr($_POST['attendee_name_'.$n]));

            if ($_POST['attendee_email_'.$n]) update_post_meta( $order_id, $n.' Attendee Email', esc_attr($_POST['attendee_email_'.$n]));

            if ($_POST['attendee_phone_'.$n]) update_post_meta( $order_id, $n.' Attendee Phone', esc_attr($_POST['attendee_phone_'.$n]));

```
        }
```
```
 
```
```
    }
```
```
 
```
```
    function wt_count_attendees() {
```
```
 
```
```
        global $woocommerce;
```
```
        $attendee_count = 0;
```
```
 
```

        if (sizeof($woocommerce->cart->get_cart())>0) :

            foreach ($woocommerce->cart->get_cart() as $item_id => $values) :

                $_product = $values['data'];

                if ($_product->exists() && $values['quantity']>0) :

                    if (get_post_meta($_product->id, '_tribe_wooticket_for_event') > 0)

                        $attendee_count += $values['quantity'];

```
                endif;
```
```
            endforeach;
```
```
        endif;
```
```
 
```
```
        return $attendee_count;
```
```
 
```
```
    }
```
```
}
```

Woocommerce 结帐页面上获取购物车中特定商品的数量

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Woocommerce 结帐页面上获取购物车中特定商品的数量

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