用钩子函数处理Woo商城结算页地址栏的必填字段

英文原说明文件地址：文章源自原紫番博客-https://www.yuanzifan.com/54384.html

https://docs.woocommerce.com/document/tutorial-customising-checkout-fields-using-actions-and-filters/文章源自原紫番博客-https://www.yuanzifan.com/54384.html

下面的代码实现的功能：文章源自原紫番博客-https://www.yuanzifan.com/54384.html

让woo的CheckOut页面，国家、省市、邮编等字段从必选变为可选。文章源自原紫番博客-https://www.yuanzifan.com/54384.html

将下列代码放进functions.php中即可实现:文章源自原紫番博客-https://www.yuanzifan.com/54384.html

add_filter( 'woocommerce_checkout_fields' , 'custom_override_checkout_fields' );

// Our hooked in function - $fields is passed via the filter!
function custom_override_checkout_fields( $fields ) {
	$fields['billing']['billing_first_name']['required'] = true;
	$fields['billing']['billing_last_name']['required'] = true;
	$fields['billing']['billing_country']['required'] = false;
	$fields['billing']['billing_address_1']['required'] = false;
	$fields['billing']['billing_address_2']['required'] = false;
	$fields['billing']['billing_city']['required'] = false;
	$fields['billing']['billing_postcode']['required'] = false;
	$fields['billing']['billing_country']['required'] = false;
	$fields['billing']['billing_state']['required'] = false;
	return $fields;
}

下面具体说明下相关的参数：文章源自原紫番博客-https://www.yuanzifan.com/54384.html

checkout类将已加载的字段添加到其“ checkout_fields”数组中，并添加其他一些字段，例如“订单备注”。文章源自原紫番博客-https://www.yuanzifan.com/54384.html

$this->checkout_fields['billing']    = $woocommerce->countries->get_address_fields( $this->get_value('billing_country'), 'billing_' );
$this->checkout_fields['shipping']   = $woocommerce->countries->get_address_fields( $this->get_value('shipping_country'), 'shipping_' );
$this->checkout_fields['account']    = array(
    'account_username' => array(
        'type' => 'text',
        'label' => __('Account username', 'woocommerce'),
        'placeholder' => _x('Username', 'placeholder', 'woocommerce')
        ),
    'account_password' => array(
        'type' => 'password',
        'label' => __('Account password', 'woocommerce'),
        'placeholder' => _x('Password', 'placeholder', 'woocommerce'),
        'class' => array('form-row-first')
        ),
    'account_password-2' => array(
        'type' => 'password',
        'label' => __('Account password', 'woocommerce'),
        'placeholder' => _x('Password', 'placeholder', 'woocommerce'),
        'class' => array('form-row-last'),
        'label_class' => array('hidden')
        )
    );
$this->checkout_fields['order']  = array(
    'order_comments' => array(
        'type' => 'textarea',
        'class' => array('notes'),
        'label' => __('Order Notes', 'woocommerce'),
        'placeholder' => _x('Notes about your order, e.g. special notes for delivery.', 'placeholder', 'woocommerce')
        )
    );

覆盖原有的设置，如改属性，改名字等，下面代码改订单备注：文章源自原紫番博客-https://www.yuanzifan.com/54384.html

// Hook in
add_filter( 'woocommerce_checkout_fields' , 'custom_override_checkout_fields' );

// Our hooked in function - $fields is passed via the filter!
function custom_override_checkout_fields( $fields ) {
     $fields['order']['order_comments']['placeholder'] = 'My new placeholder';
     $fields['order']['order_comments']['label'] = 'My new label';
     return $fields;
}

把订单的备注栏删掉的代码：文章源自原紫番博客-https://www.yuanzifan.com/54384.html

// Hook in
add_filter( 'woocommerce_checkout_fields' , 'custom_override_checkout_fields' );

// Our hooked in function - $fields is passed via the filter!
function custom_override_checkout_fields( $fields ) {
     unset($fields['order']['order_comments']);//unset是删掉

     return $fields;
}

下面是常用的参数：文章源自原紫番博客-https://www.yuanzifan.com/54384.html

全部CheckOut页面的参数：woocommerce_checkout_fields:

• Billing
  • billing_first_name
  • billing_last_name
  • billing_company
  • billing_address_1
  • billing_address_2
  • billing_city
  • billing_postcode
  • billing_country
  • billing_state
  • billing_email
  • billing_phone
• Shipping
  • shipping_first_name
  • shipping_last_name
  • shipping_company
  • shipping_address_1
  • shipping_address_2
  • shipping_city
  • shipping_postcode
  • shipping_country
  • shipping_state
• Account
  • account_username
  • account_password
  • account_password-2
• Order
  • order_comments

以上所有参数均有以下属性

• type – 类别，文本，文区域，或者选项，当是选项的时候要设置选项
• label – 名字
• placeholder – 默认选项，或者说文本里面默认的提示
• class – 类别
• required – 是否必填，有true和false两个选项
• clear – true or false, applies a clear fix to the field/label
• label_class – class for the label element
• options – 如果是选择框，这里要填入选项，格式：(key => value pairs)

某些特殊情况下，要使用 woocommerce_default_address_fields 过滤器. 改过滤器可操作以下账单相关的字段。

• country
• first_name
• last_name
• company
• address_1
• address_2
• city
• state
• postcode