【SWELL】カスタム投稿をトップページの記事スライダーに表示させる方法

// タクソノミー一覧にID列を追加する
function add_taxonomy_column_id($columns) {
    $id_column = ['term_id' => 'ID'];
    $new_columns = [];

    foreach ($columns as $key => $value) {
        $new_columns[$key] = $value;
        if ( $key === 'name' ) {
            $new_columns += $id_column; // 「名前」のすぐ後ろにIDを追加
        }
    }

    return $new_columns;
}

function add_taxonomy_column_id_content($content, $column_name, $term_id) {
    if ( $column_name === 'term_id' ) {
        return $term_id;
    }
    return $content;
}

function taxonomy_columns_register() {
    $taxonomies = ['●●●●●']; // カスタムタクソノミーのスラッグ名を指定
    foreach ( $taxonomies as $taxonomy ) {
        add_filter("manage_edit-{$taxonomy}_columns", 'add_taxonomy_column_id');
        add_filter("manage_{$taxonomy}_custom_column", 'add_taxonomy_column_id_content', 10, 3);
    }
}
add_action('admin_init', 'taxonomy_columns_register');

<?php
if ( ! defined( 'ABSPATH' ) ) exit;

$SETTING = SWELL_Theme::get_setting();
$q_args  = [
	'post_type'           => ['post', '●●●●●'], // ← カスタム投稿 works を対象に追加
	'post_status'         => 'publish',
	'no_found_rows'       => true,
	'posts_per_page'      => 8,
	'ignore_sticky_posts' => true,
];

// 除外タグ（投稿のみ対象）
$exc_tag = explode( ',', $SETTING['exc_tag_id'] );
if ( ! empty( $exc_tag ) ) {
	$q_args['tag__not_in'] = $exc_tag;
}

// 並び順
$the_orderby = $SETTING['ps_orderby'];
if ( 'meta_value_num' === $the_orderby ) {
	$q_args['orderby']  = 'meta_value_num';
	$q_args['meta_key'] = SWELL_CT_KEY;
	$q_args['order']    = 'DESC';
} else {
	$q_args['orderby'] = $the_orderby;
}

if ( 'tag' === $SETTING['ps_pickup_type'] ) {
	// タグを指定（投稿のみ）
	$pickup_tag = $SETTING['pickup_tag'];
	if ( ! empty( $pickup_tag ) ) {
		$q_args['tag'] = $pickup_tag;
	}
} else {
	// カテゴリー or カスタムタクソノミーを指定
	$pickup_cat = $SETTING['pickup_cat'];
	if ( ! empty( $pickup_cat ) ) {
		$q_args['tax_query'] = [
			'relation' => 'OR',
			[
				'taxonomy' => 'category',
				'field'    => 'term_id',
				'terms'    => [(int) $pickup_cat],
			],
			[
				'taxonomy' => '▼▼▼▼▼', // ← ここを変更！
				'field'    => 'term_id',
				'terms'    => [(int) $pickup_cat],
			],
		];
	}
}

// ピックアップタイトル
$pickup_title = $SETTING['pickup_title'];

// スライダークラス
$slider_class = ( 'normal' === $SETTING['ps_style'] ) ? '-ps-style-normal' : '-ps-style-img';

// 表示枚数
$slide_num_pc = $SETTING['ps_num'];
$slide_num_sp = $SETTING['ps_num_sp'];

$slider_class .= ' -num-pc-' . str_replace( '.', '_', $slide_num_pc );
$slider_class .= ' -num-sp-' . str_replace( '.', '_', $slide_num_sp );

$slide_num_pc = (float) $slide_num_pc;
$slide_num_sp = (float) $slide_num_sp;

if ( $slide_num_pc <= 2 ) {
	$slider_class .= ' -fz-pc-l';
};
if ( $slide_num_sp >= 2 ) {
	$slider_class .= ' -fz-sp-s';
}

// インナークラス
$inner_class = ( 'wide' === $SETTING['pickup_pad_lr'] ) ? ' l-container' : '';

// サムネイルサイズ
$pc_size     = round( 100 / $slide_num_pc, 1 ) . 'vw';
$sp_size     = round( 100 / $slide_num_sp, 1 ) . 'vw';
$thumb_sizes = '(min-width: 960px) ' . $pc_size . ', ' . $sp_size;

// 背景画像
$bgimg     = '';
$bgimg_url = SWELL_Theme::get_setting( 'bg_pickup' );
$bgimg_id  = SWELL_Theme::get_setting( 'ps_bgimg_id' );
$style     = 'opacity: ' . $SETTING['ps_img_opacity'] . ';';

if ( $bgimg_id ) {
	$bgimg = SWELL_Theme::get_image( $bgimg_id, [
		'class'       => 'p-postSlider__imgLayer c-filterLayer__img u-obf-cover',
		'alt'         => '',
		'loading'     => apply_filters( 'swell_post_slider_lazy_off', true ) ? 'none' : SWELL_Theme::$lazy_type,
		'style'       => $style,
		'decoding'    => 'async',
		'aria-hidden' => 'true',
	]);
} elseif ( $bgimg_url ) {
	$bgimg = '<img src="' . esc_attr( $bgimg_url ) . '" class="p-postSlider__imgLayer c-filterLayer__img u-obf-cover" decoding="async" style="' . esc_attr( $style ) . '">';
}

?>
<div id="post_slider" class="p-postSlider c-filterLayer <?=esc_attr( $slider_class )?>">
	<?php echo $bgimg; ?>
	<div class="p-postSlider__inner<?=esc_attr( $inner_class )?>">
		<?php if ( $pickup_title ) : ?>
			<div class="p-postSlider__title">
				<?=wp_kses( $SETTING['pickup_title'], SWELL_Theme::$allowed_text_html )?>
			</div>
		<?php endif; ?>
		<div class="p-postSlider__swiper swiper">
			<?php
				SWELL_Theme::get_parts( 'parts/post_list/loop_by_slider', [
					'query_args'  => $q_args,
					'thumb_sizes' => $thumb_sizes,
				] );
			?>
			<?php if ( $SETTING['ps_on_pagination'] ) : ?>
				<div class="swiper-pagination"></div>
			<?php endif; ?>
			<?php if ( $SETTING['ps_on_nav'] ) : ?>
				<div class="swiper-button-prev" tabindex="0" role="button" aria-label="<?=esc_attr__( '前のスライド', 'swell' )?>"></div>
				<div class="swiper-button-next" tabindex="0" role="button" aria-label="<?=esc_attr__( '次のスライド', 'swell' )?>"></div>
			<?php endif; ?>
		</div>
	</div>
</div>

$pickup_cat = $SETTING['pickup_cat'];
if ( ! empty( $pickup_cat ) ) {
    $q_args['tax_query'] = [
        'relation' => 'OR', // どちらかに一致すればOK
        [
            'taxonomy' => 'category',
            'field'    => 'term_id',
            'terms'    => [(int) $pickup_cat],
        ],
        [
            'taxonomy' => 'works-category',
            'field'    => 'term_id',
            'terms'    => [(int) $pickup_cat],
        ],
        // ↓ さらに他のカスタムタクソノミーも追加可能
        [
            'taxonomy' => 'news-category',
            'field'    => 'term_id',
            'terms'    => [(int) $pickup_cat],
        ],
    ];
}