Hướng dẫn thêm trường yêu cầu xuất hóa đơn VAT vào Woocommerce

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/* * Thêm lựa chọn xuất hóa đơn VAT vào checkout * Author: https://levantoan.com * */add_action('woocommerce_after_checkout_billing_form','devvn_xuat_hoa_don_vat');functiondevvn_xuat_hoa_don_vat(){?><style>.devvn_xuat_hoa_don_do {            background: #eee;            padding: 10px;border-radius: 3px;        }.devvn_xuat_vat_wrap {            display: none;        }label.devvn_xuat_vat_input_label {            display: block;            cursor: pointer;margin-bottom: 0;        }.devvn_xuat_vat_wrapfieldset {            margin: 10px0;            padding: 10px;            background: transparent;            border: 1pxsolid#b0aeae;        }.devvn_xuat_vat_wrapfieldsetlegend {            background: transparent;            padding: 05px;            margin: 00010px;font-size: 14px;            display: inline;            width: inherit;            border: 0;text-transform: none;            color: #000;        }.devvn_xuat_vat_wrapfieldsetp {margin-bottom: 10px;        }.devvn_xuat_vat_wrapfieldsetp:last-child {margin-bottom: 0;        }.vat_active.devvn_xuat_vat_wrap {            display: block;        }</style><divclass="devvn_xuat_hoa_don_do"><labelclass="devvn_xuat_vat_input_label"><inputclass="devvn_xuat_vat_input"type="checkbox"name="devvn_xuat_vat_input"value="1">XuấthóađơnVAT</label><divclass="devvn_xuat_vat_wrap"><fieldset><legend>Thôngtinxuấthóađơn:</legend><pclass="form-row form-row-first"id="billing_vat_company_field"><labelfor="billing_vat_company"class="">Têncôngty<abbrclass="required"title="bắt buộc">*</abbr></label><inputtype="text"class="input-text "name="billing_vat_company"id="billing_vat_company"placeholder=""value=""></p><pclass="form-row form-row-last"id="billing_vat_mst_field"><labelfor="billing_vat_mst"class="">Mãsốthuế<abbrclass="required"title="bắt buộc">*</abbr></label><inputtype="text"class="input-text "name="billing_vat_mst"id="billing_vat_mst"placeholder=""value=""></p><pclass="form-row form-row-wide "id="billing_vat_companyaddress_field"><labelfor="billing_vat_companyaddress"class="">Địachỉ<abbrclass="required"title="bắt buộc">*</abbr></label><spanclass="woocommerce-input-wrapper"><inputtype="text"class="input-text "name="billing_vat_companyaddress"id="billing_vat_companyaddress"placeholder=""value=""></span></p></fieldset></div></div><scripttype="text/javascript">        (function ($) {            $(document).ready(function(){function check_vat(){varparentVAT= $('input.devvn_xuat_vat_input').closest('.devvn_xuat_hoa_don_do');if($('input.devvn_xuat_vat_input').is(":checked")){parentVAT.addClass('vat_active');}else{parentVAT.removeClass('vat_active');}}                check_vat();                $('input.devvn_xuat_vat_input').on('change',function(){                    check_vat();});});        })(jQuery);</script><?php}

add_action('woocommerce_checkout_process','vat_checkout_field_process');functionvat_checkout_field_process(){if (isset($_POST['devvn_xuat_vat_input']) &&!empty($_POST['devvn_xuat_vat_input'])) {if (empty($_POST['billing_vat_company'])) {wc_add_notice(__('Hãy nhập tên công ty'),'error');        }if (empty($_POST['billing_vat_mst'])) {wc_add_notice(__('Hãy nhập mã số thuế'),'error');        }if (empty($_POST['billing_vat_companyaddress'])) {wc_add_notice(__('Hãy nhập địa chỉ công ty'),'error');        }    }}

add_action('woocommerce_checkout_update_order_meta','vat_checkout_field_update_order_meta');functionvat_checkout_field_update_order_meta($order_id){if (isset($_POST['devvn_xuat_vat_input']) &&!empty($_POST['devvn_xuat_vat_input'])) {update_post_meta($order_id,'devvn_xuat_vat_input',intval($_POST['devvn_xuat_vat_input']));if (isset($_POST['billing_vat_company']) &&!empty($_POST['billing_vat_company'])) {update_post_meta($order_id,'billing_vat_company', sanitize_text_field($_POST['billing_vat_company']));        }if (isset($_POST['billing_vat_mst']) &&!empty($_POST['billing_vat_mst'])) {update_post_meta($order_id,'billing_vat_mst', sanitize_text_field($_POST['billing_vat_mst']));        }if (isset($_POST['billing_vat_companyaddress']) &&!empty($_POST['billing_vat_companyaddress'])) {update_post_meta($order_id,'billing_vat_companyaddress', sanitize_text_field($_POST['billing_vat_companyaddress']));        }    }}

add_action('woocommerce_admin_order_data_after_shipping_address','devvn_after_shipping_address_vat',99);functiondevvn_after_shipping_address_vat($order){    $devvn_xuat_vat_input =get_post_meta($order->get_id(),'devvn_xuat_vat_input',true);    $billing_vat_company =get_post_meta($order->get_id(),'billing_vat_company',true);    $billing_vat_mst =get_post_meta($order->get_id(),'billing_vat_mst',true);    $billing_vat_companyaddress =get_post_meta($order->get_id(),'billing_vat_companyaddress',true);?><p><strong>Xuấthóađơn:</strong><?phpecho($devvn_xuat_vat_input) ?'Có':'Không';?></p><?phpif($devvn_xuat_vat_input):?><p><strong>Thôngtinxuấthóađơn:</strong><br>Têncôngty:<?phpecho $billing_vat_company;?><br>Mãsốthuế:<?phpecho $billing_vat_mst;?><br>Địachỉ:<?phpecho $billing_vat_companyaddress;?><br></p><?phpendif;}