WooCommerce开发：checkout相关钩子以及常见用途

WooCommerce定义了许多钩子，我们可以利用这些钩子完成一些自定义的功能

1. woocommerce_default_address_fields：下单地址过滤器钩子
2. woocommerce_checkout_fields ：checkout所有信息过滤器钩子
3. woocommerce_before_checkout_billing_form :
4. woocommerce_after_checkout_billing_form
5. woocommerce_before_checkout_registration_form
6. woocommerce_after_checkout_registration_form
7. woocommerce_before_checkout_shipping_form
8. woocommerce_after_checkout_shipping_form
9. woocommerce_before_order_notes
10. woocommerce_after_order_notes

用途

1. 禁用某个地址字段

    add_filter( 'woocommerce_default_address_fields' , 'disable_address_fields_validation' );
    function disable_address_fields_validation( $address_fields_array ) {
        unset( $address_fields_array['state']['validate']);
        unset( $address_fields_array['postcode']['validate']);
        unset( $address_fields_array['first_name']['validate']);
        unset( $address_fields_array['company']['validate']);
        unset( $address_fields_array['country']['validate']);
        unset( $address_fields_array['city']['validate']);
        unset( $address_fields_array['address_1']['validate']);
        unset( $address_fields_array['address_2']['validate']);
        return $address_fields_array;
    }
   

2. 禁用某个字段

    add_filter( 'woocommerce_checkout_fields ' , 'disable_checkout_fields_validation' );
    function disable_checkout_fields_validation( $woo_checkout_fields_array  ) {
        unset( $woo_checkout_fields_array['billing']['billing_phone']['validate'] );
        unset( $woo_checkout_fields_array['billing']['billing_company'] ); // remove company field
        unset( $woo_checkout_fields_array['billing']['billing_country'] );
        unset( $woo_checkout_fields_array['billing']['billing_address_1'] );
        unset( $woo_checkout_fields_array['billing']['billing_address_2'] );
        unset( $woo_checkout_fields_array['billing']['billing_city'] );
        unset( $woo_checkout_fields_array['billing']['billing_state'] ); // remove state field
        unset( $woo_checkout_fields_array['billing']['billing_postcode'] );
        return $woo_checkout_fields_array;
    }
   

3. 设置某个字段必填/非必填

   add_filter( 'woocommerce_checkout_fields' , 'misha_not_required_fields', 9999 );
   function misha_not_required_fields( $checkout_field ) {
    // 将字段设置为非必填
    unset( $checkout_field['billing']['billing_last_name']['required'] ); // 这就是重点
    unset( $checkout_field['billing']['billing_phone']['required'] );
    // 将字段设置为必填
    // $checkout_field['billing']['billing_company']['required'] = true;
    return $checkout_field;
   }
   

4. 更改标签名和占位符

   add_filter( 'woocommerce_checkout_fields' , 'update_labels_placeholders', 9999 );
   function update_labels_placeholders( $checkout_field ) {
    // first name can be changed with woocommerce_default_address_fields as well
    $checkout_field['billing']['billing_first_name']['label'] = 'new label';
    $checkout_field['order']['order_comments']['placeholder'] = 'new placeholder';
    return $checkout_field;
   }