[WordPress]ACFカスタムフィールドプレビュー

公開済みの記事を編集してプレビューするとカスタムフィールドの値が古いままなのを解決する
※公式対応までのつなぎ

 
functions.phpに下記追記

/**
 * $dataをjsonで出力
 */
function echo_json($data)
{
    header("Content-Type: application/json; charset=utf-8");
    echo json_encode($data);
}
/**
 * テンプレートのadmin.jsを読み込む
 */
function add_admin_style()
{
    $path_js = get_template_directory_uri().'/scripts/admin.js';
    wp_enqueue_script('admin_script', $path_js);
}
add_action('admin_enqueue_scripts', 'add_admin_style');
/**
 * ajaxで送信されたカスタムフィールドの値をdbへ保存
 */
function save_acf_by_ajax()
{
    if(empty($_POST['post_id'])){
        echo_json(['success' => false,'preview_id' => 0]);
        wp_die();
        exit;
    }
    $post_id = $_POST['post_id'];
    $post_status = get_post_status($post_id);
    if($post_status !== "publish"){
        echo_json(['success' => false,'preview_id' => 0]);
        wp_die();
        exit;
    }
    $preview_id = 0;
    global $wpdb;
    $row = $wpdb->get_row("SELECT p.ID FROM $wpdb->posts AS p WHERE p.post_type = '_cf_preview_id' AND p.post_parent = ${post_id}");
    if(empty($row)) {
        $post = array(
            'post_name'      => '_cf_preview_id',
            'post_title'     => '_cf_preview_id',
            'post_status'    => 'private',
            'post_type'      => '_cf_preview_id',
            'post_author'    => 1,
            'ping_status'    => 'closed',
            'post_parent'    => $post_id,
            'comment_status' => 'closed',
        );
        $preview_id = wp_insert_post($post);
    }else{
        $preview_id = $row->ID;
    }
    unset($_POST['action']);
    unset($_POST['post_id']);
    unset($_POST['preview_id']);
    if(!empty($preview_id)) {
        foreach ($_POST as $key => $value) {
            update_field($key, $value, $preview_id);
        }
    }
    $_POST['post_id'] = $post_id;
    $_POST['preview_id'] = $preview_id;
    $_POST['success'] = !empty($preview_id);
    echo_json($_POST);
    wp_die();
}
add_action( 'wp_ajax_save_acf_by_ajax_action', 'save_acf_by_ajax' );
/**
 * プレビュー時カスタムフィールドの値用のpostidを返す
 */
function get_cf_post_id($post_id = '')
{
    if(empty($post_id)){
        $post_id = get_the_ID();
    }
    $cf_post_id = $post_id;
    if(is_preview()){
        $post_status = get_post_status($post_id);
        if($post_status === 'publish'){
            global $wpdb;
            $row = $wpdb->get_row("SELECT p.ID FROM $wpdb->posts AS p WHERE p.post_type = '_cf_preview_id' AND p.post_parent = ${post_id}");
            if (!empty($row)) {
                $cf_post_id = $row->ID;
            }
        }
    }
    return $cf_post_id;
}

wp-content/themes/テーマ/assets/js/admin.jsに下記追記

class CFSaveManager {
    qsall(selector,elm){
        if(!elm)elm = document;
        return elm.querySelectorAll(selector);
    }
    qs(selector,elm){
        if(!elm)elm = document;
        return elm.querySelector(selector);
    }
    constructor(){
    }
    /* 初期化 */
    init(){
        this.initAutoSave();
    }
    /* プレビューボタンにイベント設定 */
    initAutoSave(){
        const button = this.qs('.block-editor-post-preview__button-toggle');
        if(!button){
            setTimeout(() => {
                this.initAutoSave();
            },200);
            return;
        }
        button.addEventListener('click',() => {
            this.autoSave();
        });
    }
    /* ajaxでカスタムフィールドの値をapiへ送信・保存 */
    autoSave(){
        const elm = this.qs('[name="post_ID"]');
        const form = this.qs('form.metabox-location-normal');
        const formData = new FormData(form);
        let sendFormData = new FormData();
        for (let item of formData) {
            if(/^acf\[.+\]$/.test(item[0])){
                var matches = item[0].match(/acf\[(.+)\]/);
                if(matches && 1 < matches.length){
                    sendFormData.append(matches[1],item[1]);
                }
            }else{
                sendFormData.append(item[0],item[1]);
            }
        }
        sendFormData.append('action','save_acf_by_ajax_action');
        sendFormData.append('post_id',elm.value);
        const options = {
            method  : "POST",
            headers : {
                'Accept': 'application/json'
            },
            body    : sendFormData
        };
        fetch(window.ajaxurl,options)
            .then((response)=>{
                if (!response.ok) {
                    throw new Error();
                }
                return response.json();
            })
            .then((json)=>{
                console.log(json);
            })
            .catch(console.error);
    }
}
window.addEventListener('DOMContentLoaded',(e) => {
    const cfsm = new CFSaveManager();
    cfsm.init();
});

wpテンプレでカスタムフィールドの値を出力する部分

$post_id = get_the_ID();
$cf_preview_id = $post_id;
if(is_preview()){
    $post_status = get_post_status($post_id);
    if($post_status === 'publish'){
        global $wpdb;
        $row = $wpdb->get_row("SELECT p.ID FROM $wpdb->posts AS p WHERE p.post_type = '_cf_preview_id' AND p.post_parent = ${post_id}");
        if (!empty($row)) {
            $cf_preview_id = $row->ID;
        }
    }
}
$value = get_field( "test_text1" ,$cf_preview_id );
echo "cf_preview_id:$cf_preview_id<br>";
echo "<h2>test_text1:".esc_html($value)."</h2>";

[JavaScript]ShopifyCartAPIを叩く(update.js)

let sendData = {
    updates : {}
};
this.deleteItems.forEach((item,index)=>{
    sendData.updates[item.key] = 0;
});
let options = {
    method  : 'POST',
    credentials: 'same-origin',
    headers : {
        'Content-Type': 'application/json'
    },
    body    : JSON.stringify(sendData)
};
fetch(window.Shopify.routes.root+'cart/update.js',options)
.then((response)=>{
    if (!response.ok) {
        throw new Error();
    }
    return response.json;
})
.then((json)=>{
    this.finishFetch(2);
})
.catch((error)=>{
    console.log(error);
});

[JavaScript]ShopifyCartAPIを叩く(change.js)

let sendData = {
    id         : item.key,
    quantity   : item.quantity,
    properties : {}
};
item.properties.forEach((property,index)=>{
    sendData.properties['プロパティ'+(index+1)] = property.value;
});
let options = {
    method       : 'POST',
    credentials  : 'same-origin',
    headers : {
        'Content-Type' : 'application/json'
    },
    body         : JSON.stringify(sendData)
};
fetch(window.Shopify.routes.root+'cart/change.js',options)
.then((response)=>{
    if (!response.ok) {
        throw new Error();
    }
    return response.json;
})
.then((json)=>{
    this.finishFetch();
})
.catch((error)=>{
    console.log(error);
});

[Shopify][JavaScript]住所編集の国で都道府県更新

Liquid(HTML)

国<select name="address[country]" {% if form.country != blank %}data-default-label="{{ form.country }}{% else %}data-default="Japan{% endif %}">{{ country_option_tags }}</select><br>
都道府県<select name="address[province]" data-default-label="{{ form.province }}"></select>

JavaScript

document.querySelectorAll('[name="address[country]"]').forEach((elm,index)=>{
    elm.addEventListener('change',(e)=>{
        onChangeCountry(e);
    });
});
onChangeCountry(e){
    const option = e.target.querySelector('[value="'+e.target.value+'"]');
    const provinceSelect = e.target.form.querySelector('[name="address[province]"]');
    if(option && provinceSelect){
        let options = [];
        const provinces = JSON.parse(option.dataset['provinces']);
        provinces.forEach((province,index)=>{
            options.push('<option value="'+province[0]+'">'+province[1]+'</option>');
        });
        provinceSelect.innerHTML = options.join('');
    }
}

[JavaScript]ファイルサイズ取得

const options = {
   method  : "HEAD"
};
fetch(elm.href,options)
    .then((response)=>{
        if (!response.ok) {
            throw new Error();
        }
        return response;
    })
    .then((response)=>{
        const fileSize = response.headers.get("Content-Length");
        if(fileSize) {
            console.log(fileSize);
        }else{
            throw new Error();
        }
    })
    .catch((error)=>{
    });

[WordPress]MW WP Formの問い合わせデータ表示順指定カスタムフィールド追加

functions.phpに下記を追記

// カスタムフィールドボックス[問い合わせデータの表示順]
function add_mw_order_fields() {
    //add_meta_box(表示される入力ボックスのHTMLのID, ラベル, 表示する内容を作成する関数名, 投稿タイプ, 表示方法)
    add_meta_box( 'mw_order_setting', '問い合わせデータの表示順', 'insert_mw_order_fields', 'mw-wp-form', 'normal');
}
add_action('admin_menu', 'add_mw_order_fields');
// カスタムフィールドの入力エリア[問い合わせデータの表示順]
function insert_mw_order_fields() {
    global $post;
    echo '<div><input style="width: 100%;" type="text" name="mw_order" value="'.get_post_meta($post->ID, 'mw_order', true).'" size="50" placeholder=""/></div>';
}
// カスタムフィールドの値を保存[問い合わせデータの表示順]
function save_mw_order_fields( $post_id ) {
    if(!empty($_POST['mw_order'])){
        update_post_meta($post_id, 'mw_order', $_POST['mw_order'] );
    }else{
        delete_post_meta($post_id, 'mw_order');
    }
}
add_action('save_post', 'save_mw_order_fields');
// カスタムフィールドの値による問い合わせデータ表示順設定
function my_mwform_inquiry_data_columns( $columns ) {
    if(empty($_GET['post_type']) || strpos($_GET['post_type'],'mwf_') === false){
        return $columns;
    }
    $tmp = explode('_',$_GET['post_type']);
    if(count($tmp) < 2 || !is_numeric($tmp[1])) {
        return $columns;
    }
    $meta = get_post_meta($tmp[1],'mw_order',true);
    if (empty($meta)) {
        return $columns;
    }
    $order = explode(',',$meta);
    $result = [];
    foreach ($order as $key => $value){
        if(empty($value))continue;
        $result[$value] = $value;
    }
    return $result;
}
// フィルターフックの要否を判定し必要なら処理を設定する
if(!empty($_GET['post_type']) && strpos($_GET['post_type'],'mwf_') === 0){
    $tmp = explode('_',$_GET['post_type']);
    if(1 < count($tmp) && is_numeric($tmp[1])) {
        $meta = get_post_meta($tmp[1], 'mw_order',true);
        if (!empty($meta)) {
            add_filter('mwform_inquiry_data_columns-mwf_' . $tmp[1], 'my_mwform_inquiry_data_columns');
        }
    }
}

 
追加されたカスタムフィールドへnameをカンマ区切りで入力する。

[PHP]idiorm #8 save

$record = ORM::for_table($this->table_name)->where('id', $id)->find_one();
if(empty($record)){
    return false;
}
foreach ($data as $key => $value){
    $record->set($key,$value);
}
$result = $record->save();