【SWELL】投稿一覧に「日・週・月・全」のアクセス数を表示する方法

function set_post_views($postID) {
    $count_keys = ['post_views_count', 'post_daily_views_count', 'post_weekly_views_count', 'post_monthly_views_count'];
    foreach ($count_keys as $count_key) {
        $count = get_post_meta($postID, $count_key, true);
        if($count == '') {
            $count = 0;
            delete_post_meta($postID, $count_key);
            add_post_meta($postID, $count_key, '0');
        } else {
            $count++;
            update_post_meta($postID, $count_key, $count);
        }
    }
}

function track_post_views($post_id) {
    if (!is_single()) return;
    if (empty($post_id)) {
        global $post;
        $post_id = $post->ID;
    }
    set_post_views($post_id);
}
add_action('wp_head', 'track_post_views');

// リセット用のスケジュールイベントを作成
if (!wp_next_scheduled('reset_daily_views')) {
    wp_schedule_event(time(), 'daily', 'reset_daily_views');
}

if (!wp_next_scheduled('reset_weekly_views')) {
    wp_schedule_event(time(), 'weekly', 'reset_weekly_views');
}

if (!wp_next_scheduled('reset_monthly_views')) {
    wp_schedule_event(time(), 'monthly', 'reset_monthly_views');
}

// 日ごとのPV数リセット
add_action('reset_daily_views', 'reset_daily_views_count');
function reset_daily_views_count() {
    global $wpdb;
    $wpdb->query("UPDATE $wpdb->postmeta SET meta_value = '0' WHERE meta_key = 'post_daily_views_count'");
}

// 週ごとのPV数リセット
add_action('reset_weekly_views', 'reset_weekly_views_count');
function reset_weekly_views_count() {
    global $wpdb;
    $wpdb->query("UPDATE $wpdb->postmeta SET meta_value = '0' WHERE meta_key = 'post_weekly_views_count'");
}

// 月ごとのPV数リセット
add_action('reset_monthly_views', 'reset_monthly_views_count');
function reset_monthly_views_count() {
    global $wpdb;
    $wpdb->query("UPDATE $wpdb->postmeta SET meta_value = '0' WHERE meta_key = 'post_monthly_views_count'");
}

// 管理画面にカラムを追加
add_filter('manage_posts_columns', function($columns){
    $columns['view'] = 'View';
    return $columns;
});

// カラムにPV数を表示
add_action('manage_posts_custom_column', function($column_name, $post_id){
    if ($column_name == 'view') {
        $daily_views = get_post_meta($post_id, 'post_daily_views_count', true);
        $weekly_views = get_post_meta($post_id, 'post_weekly_views_count', true);
        $monthly_views = get_post_meta($post_id, 'post_monthly_views_count', true);
        $total_views = get_post_meta($post_id, 'post_views_count', true);

        echo '日：' . ($daily_views ? $daily_views : '0');
        echo '<br />';
        echo '週：' . ($weekly_views ? $weekly_views : '0');
        echo '<br />';
        echo '月：' . ($monthly_views ? $monthly_views : '0');
        echo '<br />';
        echo '全：' . ($total_views ? $total_views : '0');
    }
}, 10, 2);

// ウィークリーとマンスリーのスケジュールを追加
add_filter('cron_schedules', 'custom_cron_schedules');
function custom_cron_schedules($schedules) {
    $schedules['weekly'] = array(
        'interval' => 604800,
        'display' => __('Once Weekly')
    );
    $schedules['monthly'] = array(
        'interval' => 2592000,
        'display' => __('Once Monthly')
    );
    return $schedules;
}