{"id":10395,"date":"2026-01-08T12:17:03","date_gmt":"2026-01-08T03:17:03","guid":{"rendered":"https:\/\/code-plus.jp\/gp\/?p=10395"},"modified":"2026-01-15T16:42:08","modified_gmt":"2026-01-15T07:42:08","slug":"wpposts-clauses-10395","status":"publish","type":"post","link":"https:\/\/code-plus.jp\/gp\/wpposts-clauses-10395\/","title":{"rendered":"WordPress\u7ba1\u7406\u753b\u9762\u306e\u6295\u7a3f\u4e00\u89a7\u306e\u30ab\u30b9\u30bf\u30de\u30a4\u30ba - \u30ab\u30c6\u30b4\u30ea\u30fc\u30fb\u30bf\u30b0\u3067\u30bd\u30fc\u30c8\u53ef\u80fd\u306b\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<p>\u300c\u30ab\u30c6\u30b4\u30ea\u30fc\u3067\u7d5e\u308a\u8fbc\u3093\u3067\u304b\u3089\u4e00\u62ec\u7de8\u96c6\u3057\u305f\u3044\u306e\u306b\u3001\u3067\u304d\u306a\u3044\u2026\u300d<\/p>\r\n<p><\/p>\r\n<p>WordPress\u306e\u30ab\u30c6\u30b4\u30ea\u30fc\u306e\u30c9\u30ed\u30c3\u30d7\u30c0\u30a6\u30f3\u3067\u7d5e\u308a\u8fbc\u3093\u3060\u72b6\u614b\u3067\u306f\u3001\u4e00\u62ec\u64cd\u4f5c\u3067\u30ab\u30c6\u30b4\u30ea\u30fc\u3092\u5909\u66f4\u3067\u304d\u306a\u3044\u3068\u3044\u3046\u5236\u9650\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306fWordPress\u306e\u4ed5\u69d8\u306a\u306e\u3067\u3059\u304c\u3001\u4ee3\u308f\u308a\u306b<b class=\"bold\">\u30ab\u30e9\u30e0\u30d8\u30c3\u30c0\u30fc\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u30bd\u30fc\u30c8<\/b>\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308c\u3070\u3001\u540c\u3058\u30ab\u30c6\u30b4\u30ea\u30fc\u306e\u8a18\u4e8b\u3092\u307e\u3068\u3081\u3066\u9078\u629e\u2192\u4e00\u62ec\u7de8\u96c6\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\r\n<p><\/p>\r\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001<\/p>\r\n<ul style=\"list-style-type:bullet;\">\r\n<li>\u56fa\u5b9a\u30da\u30fc\u30b8\u306b\u3082\u30ab\u30c6\u30b4\u30ea\u30fc\u30fb\u30bf\u30b0\u3092\u8ffd\u52a0<\/li>\r\n<li>\u30ab\u30c6\u30b4\u30ea\u30fc\u7ba1\u7406\u753b\u9762\u306bID\u5217\u3092\u8ffd\u52a0<\/li>\r\n<li>\u6295\u7a3f\u30da\u30fc\u30b8\u30fb\u56fa\u5b9a\u30da\u30fc\u30b8\u4e00\u89a7\u3067\u300c\u30ab\u30c6\u30b4\u30ea\u30fc\u300d\u300c\u6295\u7a3f\u8005\u300d\u300c\u30bf\u30b0\u300d\u306e\u30ab\u30e9\u30e0\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u30bd\u30fc\u30c8<\/li>\r\n<\/ul>\r\n<p>functions.php\u306b\u8ffd\u52a0\u3059\u308b\u3060\u3051\u3067\u4f7f\u3048\u308b\u5b9f\u8df5\u7684\u306a\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u30b3\u30fc\u30c9\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\r\n\r\n <!-- \u2605\u76ee\u6b21\u30ea\u30b9\u30c8 -->\r\n<ul class=\"tocList mt-1r\" data-toc-id=\"js-tocBWGD\"><\/ul>\r\n<ins class=\"tocBtn is-fixed\" data-toc-id=\"js-tocBWGD\"><\/ins>\r\n<!-- \u76ee\u6b21\uff1aJS -->\r\n<script src=\"https:\/\/code-plus.jp\/cdn\/js\/_gimmicks\/inppend-tocList.js\"><\/script>\r\n<script src=\"https:\/\/code-plus.jp\/cdn\/js\/_gimmicks\/inppend-tocBtn.js\"><\/script>\r\n\r\n\r\n\r\n\r\n<h2 class=\"fz-xl\">\u5b8c\u6210\u30a4\u30e1\u30fc\u30b8<\/h2>\r\n<picture class=\"bd-bounds\"><img decoding=\"async\" src=\"https:\/\/code-plus.jp\/gp\/wp-content\/uploads\/FS-20260108-code-plus.jp_609.png\" alt=\"\" width=\"1343\" height=\"649\" class=\"alignnone size-full wp-image-10398\" \/><\/picture>\r\n\r\n<p>\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u5f8c\u306f\u3001\u6295\u7a3f\u4e00\u89a7\u30fb\u56fa\u5b9a\u30da\u30fc\u30b8\u4e00\u89a7\u3067\u300c\u30ab\u30c6\u30b4\u30ea\u30fc\u300d\u300c\u6295\u7a3f\u8005\u300d\u300c\u30bf\u30b0\u300d\u306e\u30d8\u30c3\u30c0\u30fc\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3068\u3001\u6607\u9806\u30fb\u964d\u9806\u3067\u30bd\u30fc\u30c8\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\r\n<p>\u3053\u308c\u306b\u3088\u308a\u3001\u540c\u3058\u30ab\u30c6\u30b4\u30ea\u30fc\u306e\u8a18\u4e8b\u304c\u307e\u3068\u307e\u3063\u3066\u8868\u793a\u3055\u308c\u308b\u306e\u3067\u3001\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u3067\u9078\u629e\u2192\u4e00\u62ec\u64cd\u4f5c\u3067\u30ab\u30c6\u30b4\u30ea\u30fc\u5909\u66f4\u3001\u3068\u3044\u3063\u305f\u4f5c\u696d\u304c\u52b9\u7387\u7684\u306b\u884c\u3048\u307e\u3059\u3002<\/p>\r\n<h2 class=\"fz-xl\">\u5b9f\u88c5\u30b3\u30fc\u30c9\uff08functions.php\uff09<\/h2>\r\n<p>\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u30c6\u30fc\u30de\u306e<code>functions.php<\/code>\u306b\u8ffd\u52a0\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5b50\u30c6\u30fc\u30de\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u5b50\u30c6\u30fc\u30de\u306e<code>functions.php<\/code>\u306b\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/p>\r\n<pre><code class=\"language-php\">&lt;?php\r\n\/**\r\n * WordPress\u7ba1\u7406\u753b\u9762\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\r\n * - \u6295\u7a3f\u30fb\u56fa\u5b9a\u30da\u30fc\u30b8\u4e00\u89a7\u306e\u30bd\u30fc\u30c8\u6a5f\u80fd\u8ffd\u52a0\r\n * - \u56fa\u5b9a\u30da\u30fc\u30b8\u3078\u306e\u30ab\u30c6\u30b4\u30ea\u30fc\u30fb\u30bf\u30b0\u8ffd\u52a0\r\n * - \u30ab\u30c6\u30b4\u30ea\u30fc\u4e00\u89a7\u3078\u306eID\u5217\u8ffd\u52a0\r\n *\/\r\n\r\n\/* \u25a0\u30ab\u30c6\u30b4\u30ea\u30fc\u30fb\u30bf\u30b0\u8a2d\u5b9a\r\n====================================== *\/\r\n\/* \u56fa\u5b9a\u30da\u30fc\u30b8\u306b\u30ab\u30c6\u30b4\u30ea\u30fc\u3068\u30bf\u30b0\u3092\u8ffd\u52a0 *\/\r\nfunction add_taxonomy_to_pages() {\r\n    register_taxonomy_for_object_type(&#39;category&#39;, &#39;page&#39;);\r\n    register_taxonomy_for_object_type(&#39;post_tag&#39;, &#39;page&#39;);\r\n}\r\nadd_action(&#39;init&#39;, &#39;add_taxonomy_to_pages&#39;);\r\n\r\n\/* \u30ab\u30c6\u30b4\u30ea\u30fc\u30fb\u30bf\u30b0\u30a2\u30fc\u30ab\u30a4\u30d6\u306b\u56fa\u5b9a\u30da\u30fc\u30b8\u3092\u542b\u3081\u308b *\/\r\nfunction add_page_to_archive($query) {\r\n    if (!is_admin() &amp;&amp; $query-&gt;is_main_query()) {\r\n        if ($query-&gt;is_category() || $query-&gt;is_tag()) {\r\n            $query-&gt;set(&#39;post_type&#39;, array(&#39;post&#39;, &#39;page&#39;));\r\n        }\r\n    }\r\n}\r\nadd_action(&#39;pre_get_posts&#39;, &#39;add_page_to_archive&#39;);\r\n\r\n\/* \u30ab\u30c6\u30b4\u30ea\u30fc\u4e00\u89a7\u306b\u300cID\u300d\u5217\u3092\u8ffd\u52a0 *\/\r\nfunction add_category_columns_id($columns) {\r\n    $columns[&#39;category_id&#39;] = &#39;ID&#39;;\r\n    return $columns;\r\n}\r\nadd_filter(&#39;manage_edit-category_columns&#39;, &#39;add_category_columns_id&#39;);\r\n\r\n\/* ID\u5217\u306b\u30c7\u30fc\u30bf\u3092\u8868\u793a *\/\r\nfunction show_category_id_column($content, $column_name, $term_id) {\r\n    if ($column_name === &#39;category_id&#39;) {\r\n        return $term_id;\r\n    }\r\n    return $content;\r\n}\r\nadd_filter(&#39;manage_category_custom_column&#39;, &#39;show_category_id_column&#39;, 10, 3);\r\n\r\n\/* ID\u5217\u3092\u30bd\u30fc\u30c8\u53ef\u80fd\u306b\u3059\u308b *\/\r\nfunction make_category_id_sortable($columns) {\r\n    $columns[&#39;category_id&#39;] = &#39;term_id&#39;;\r\n    return $columns;\r\n}\r\nadd_filter(&#39;manage_edit-category_sortable_columns&#39;, &#39;make_category_id_sortable&#39;);\r\n\r\n\r\n\/* \u25a0\u6295\u7a3f\u30fb\u56fa\u5b9a\u30da\u30fc\u30b8\u4e00\u89a7\u306e\u30bd\u30fc\u30c8\u6a5f\u80fd\u8ffd\u52a0\r\n====================================== *\/\r\n\/* \u6295\u7a3f\u4e00\u89a7\u306e\u30ab\u30e9\u30e0\u3092\u30bd\u30fc\u30c8\u53ef\u80fd\u306b\u3059\u308b\uff08\u30ab\u30c6\u30b4\u30ea\u30fc\u30fb\u6295\u7a3f\u8005\u30fb\u30bf\u30b0\uff09 *\/\r\nfunction make_post_columns_sortable($columns) {\r\n    $columns[&#39;categories&#39;] = &#39;category_name&#39;;\r\n    $columns[&#39;author&#39;]     = &#39;author&#39;;\r\n    $columns[&#39;tags&#39;]       = &#39;tag_name&#39;;\r\n    return $columns;\r\n}\r\nadd_filter(&#39;manage_edit-post_sortable_columns&#39;, &#39;make_post_columns_sortable&#39;);\r\n\r\n\/* \u56fa\u5b9a\u30da\u30fc\u30b8\u4e00\u89a7\u306e\u30ab\u30e9\u30e0\u3092\u30bd\u30fc\u30c8\u53ef\u80fd\u306b\u3059\u308b\uff08\u30ab\u30c6\u30b4\u30ea\u30fc\u30fb\u6295\u7a3f\u8005\u30fb\u30bf\u30b0\uff09 *\/\r\nfunction make_page_columns_sortable($columns) {\r\n    $columns[&#39;categories&#39;] = &#39;category_name&#39;;\r\n    $columns[&#39;author&#39;]     = &#39;author&#39;;\r\n    $columns[&#39;tags&#39;]       = &#39;tag_name&#39;;\r\n    return $columns;\r\n}\r\nadd_filter(&#39;manage_edit-page_sortable_columns&#39;, &#39;make_page_columns_sortable&#39;);\r\n\r\n\/* \u56fa\u5b9a\u30da\u30fc\u30b8\u4e00\u89a7\u306b\u30ab\u30c6\u30b4\u30ea\u30fc\u30fb\u30bf\u30b0\u30ab\u30e9\u30e0\u3092\u8ffd\u52a0 *\/\r\nfunction add_taxonomy_columns_to_pages($columns) {\r\n    \/\/author\u306e\u5f8c\u308d\u306b\u30ab\u30c6\u30b4\u30ea\u30fc\u3068\u30bf\u30b0\u3092\u8ffd\u52a0\r\n    $new_columns = array();\r\n    foreach ($columns as $key =&gt; $value) {\r\n        $new_columns[$key] = $value;\r\n        if ($key === &#39;author&#39;) {\r\n            $new_columns[&#39;categories&#39;] = &#39;\u30ab\u30c6\u30b4\u30ea\u30fc&#39;;\r\n            $new_columns[&#39;tags&#39;] = &#39;\u30bf\u30b0&#39;;\r\n        }\r\n    }\r\n    return $new_columns;\r\n}\r\nadd_filter(&#39;manage_pages_columns&#39;, &#39;add_taxonomy_columns_to_pages&#39;);\r\n\r\n\/* \u56fa\u5b9a\u30da\u30fc\u30b8\u4e00\u89a7\u306e\u30ab\u30c6\u30b4\u30ea\u30fc\u30fb\u30bf\u30b0\u30ab\u30e9\u30e0\u306b\u30c7\u30fc\u30bf\u3092\u8868\u793a *\/\r\nfunction show_taxonomy_columns_on_pages($column_name, $post_id) {\r\n    if ($column_name === &#39;categories&#39;) {\r\n        $categories = get_the_category($post_id);\r\n        if (!empty($categories)) {\r\n            $cat_links = array();\r\n            foreach ($categories as $cat) {\r\n                $cat_links[] = &#39;&lt;a href=&quot;&#39; . esc_url(admin_url(&#39;edit.php?post_type=page&amp;category_name=&#39; . $cat-&gt;slug)) . &#39;&quot;&gt;&#39; . esc_html($cat-&gt;name) . &#39;&lt;\/a&gt;&#39;;\r\n            }\r\n            echo implode(&#39;, &#39;, $cat_links);\r\n        } else {\r\n            echo &#39;\u2014&#39;;\r\n        }\r\n    }\r\n    \r\n    if ($column_name === &#39;tags&#39;) {\r\n        $tags = get_the_tags($post_id);\r\n        if (!empty($tags)) {\r\n            $tag_links = array();\r\n            foreach ($tags as $tag) {\r\n                $tag_links[] = &#39;&lt;a href=&quot;&#39; . esc_url(admin_url(&#39;edit.php?post_type=page&amp;tag=&#39; . $tag-&gt;slug)) . &#39;&quot;&gt;&#39; . esc_html($tag-&gt;name) . &#39;&lt;\/a&gt;&#39;;\r\n            }\r\n            echo implode(&#39;, &#39;, $tag_links);\r\n        } else {\r\n            echo &#39;\u2014&#39;;\r\n        }\r\n    }\r\n}\r\nadd_action(&#39;manage_pages_custom_column&#39;, &#39;show_taxonomy_columns_on_pages&#39;, 10, 2);\r\n\r\n\/* \u30ab\u30c6\u30b4\u30ea\u30fc\u30fb\u30bf\u30b0\u3067\u306e\u30bd\u30fc\u30c8\u51e6\u7406\uff08\u6295\u7a3f\u30fb\u56fa\u5b9a\u30da\u30fc\u30b8\u5171\u901a\uff09 *\/\r\nfunction sort_posts_by_taxonomy($query) {\r\n    if (!is_admin() || !$query-&gt;is_main_query()) {\r\n        return;\r\n    }\r\n\r\n    $screen = get_current_screen();\r\n    if (!$screen || !in_array($screen-&gt;id, array(&#39;edit-post&#39;, &#39;edit-page&#39;), true)) {\r\n        return;\r\n    }\r\n\r\n    $orderby = $query-&gt;get(&#39;orderby&#39;);\r\n\r\n    \/\/\u30ab\u30c6\u30b4\u30ea\u30fc\u3067\u30bd\u30fc\u30c8\r\n    if ($orderby === &#39;category_name&#39;) {\r\n        add_filter(&#39;posts_clauses&#39;, &#39;sort_by_category_clauses&#39;);\r\n    }\r\n\r\n    \/\/\u30bf\u30b0\u3067\u30bd\u30fc\u30c8\r\n    if ($orderby === &#39;tag_name&#39;) {\r\n        add_filter(&#39;posts_clauses&#39;, &#39;sort_by_tag_clauses&#39;);\r\n    }\r\n}\r\nadd_action(&#39;pre_get_posts&#39;, &#39;sort_posts_by_taxonomy&#39;);\r\n\r\n\/* \u30ab\u30c6\u30b4\u30ea\u30fc\u3067\u30bd\u30fc\u30c8\u3059\u308b\u305f\u3081\u306eSQL\u53e5\u3092\u8ffd\u52a0 *\/\r\nfunction sort_by_category_clauses($clauses) {\r\n    global $wpdb;\r\n\r\n    $clauses[&#39;join&#39;] .= &quot; LEFT JOIN (\r\n        SELECT object_id, GROUP_CONCAT(t.name ORDER BY t.name ASC SEPARATOR &#39;, &#39;) as category_names\r\n        FROM {$wpdb-&gt;term_relationships} tr\r\n        INNER JOIN {$wpdb-&gt;term_taxonomy} tt ON tr.term_taxonomy_id = tt.term_taxonomy_id AND tt.taxonomy = &#39;category&#39;\r\n        INNER JOIN {$wpdb-&gt;terms} t ON tt.term_id = t.term_id\r\n        GROUP BY object_id\r\n    ) as cat_sort ON {$wpdb-&gt;posts}.ID = cat_sort.object_id&quot;;\r\n\r\n    $order = strtoupper(get_query_var(&#39;order&#39;)) === &#39;ASC&#39; ? &#39;ASC&#39; : &#39;DESC&#39;;\r\n    $clauses[&#39;orderby&#39;] = &quot;COALESCE(cat_sort.category_names, &#39;&#39;) {$order}, &quot; . $clauses[&#39;orderby&#39;];\r\n\r\n    \/\/\u30d5\u30a3\u30eb\u30bf\u30fc\u30921\u56de\u3060\u3051\u5b9f\u884c\r\n    remove_filter(&#39;posts_clauses&#39;, &#39;sort_by_category_clauses&#39;);\r\n\r\n    return $clauses;\r\n}\r\n\r\n\/* \u30bf\u30b0\u3067\u30bd\u30fc\u30c8\u3059\u308b\u305f\u3081\u306eSQL\u53e5\u3092\u8ffd\u52a0 *\/\r\nfunction sort_by_tag_clauses($clauses) {\r\n    global $wpdb;\r\n\r\n    $clauses[&#39;join&#39;] .= &quot; LEFT JOIN (\r\n        SELECT object_id, GROUP_CONCAT(t.name ORDER BY t.name ASC SEPARATOR &#39;, &#39;) as tag_names\r\n        FROM {$wpdb-&gt;term_relationships} tr\r\n        INNER JOIN {$wpdb-&gt;term_taxonomy} tt ON tr.term_taxonomy_id = tt.term_taxonomy_id AND tt.taxonomy = &#39;post_tag&#39;\r\n        INNER JOIN {$wpdb-&gt;terms} t ON tt.term_id = t.term_id\r\n        GROUP BY object_id\r\n    ) as tag_sort ON {$wpdb-&gt;posts}.ID = tag_sort.object_id&quot;;\r\n\r\n    $order = strtoupper(get_query_var(&#39;order&#39;)) === &#39;ASC&#39; ? &#39;ASC&#39; : &#39;DESC&#39;;\r\n    $clauses[&#39;orderby&#39;] = &quot;COALESCE(tag_sort.tag_names, &#39;&#39;) {$order}, &quot; . $clauses[&#39;orderby&#39;];\r\n\r\n    \/\/\u30d5\u30a3\u30eb\u30bf\u30fc\u30921\u56de\u3060\u3051\u5b9f\u884c\r\n    remove_filter(&#39;posts_clauses&#39;, &#39;sort_by_tag_clauses&#39;);\r\n\r\n    return $clauses;\r\n}\r\n\r\n\r\n\/* \u30ab\u30c6\u30b4\u30ea\u30fc\u7ba1\u7406\u753b\u9762\u7528\u306eCSS *\/\r\nfunction admin_custom_styles() {\r\n    $screen = get_current_screen();\r\n    \r\n    if ($screen &amp;&amp; $screen-&gt;id === &#39;edit-category&#39;) {\r\n        echo &#39;&lt;style&gt;\r\n            .fixed .column-posts { width: 94px; }\r\n            .manage-column.column-category_id { width: 54px; }\r\n        &lt;\/style&gt;&#39;;\r\n    }\r\n}\r\nadd_action(&#39;admin_head&#39;, &#39;admin_custom_styles&#39;);\r\n<\/code><\/pre>\r\n<h2 class=\"fz-xl\">\u30b3\u30fc\u30c9\u306e\u89e3\u8aac<\/h2>\r\n<h3 class=\"fz-ml\">1. \u56fa\u5b9a\u30da\u30fc\u30b8\u306b\u30ab\u30c6\u30b4\u30ea\u30fc\u30fb\u30bf\u30b0\u3092\u8ffd\u52a0<\/h3>\r\n<p><code>register_taxonomy_for_object_type()<\/code>\u3092\u4f7f\u3063\u3066\u3001\u56fa\u5b9a\u30da\u30fc\u30b8\uff08page\uff09\u306b\u30ab\u30c6\u30b4\u30ea\u30fc\u3068\u30bf\u30b0\u3092\u95a2\u9023\u4ed8\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\r\n<pre><code class=\"language-php\">register_taxonomy_for_object_type(&#39;category&#39;, &#39;page&#39;);\r\nregister_taxonomy_for_object_type(&#39;post_tag&#39;, &#39;page&#39;);\r\n<\/code><\/pre>\r\n<p>\u3053\u308c\u3060\u3051\u3067\u56fa\u5b9a\u30da\u30fc\u30b8\u306e\u7de8\u96c6\u753b\u9762\u306b\u30ab\u30c6\u30b4\u30ea\u30fc\u30fb\u30bf\u30b0\u306e\u9078\u629eUI\u304c\u8868\u793a\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\r\n<h3 class=\"fz-ml\">2. \u30bd\u30fc\u30c8\u53ef\u80fd\u30ab\u30e9\u30e0\u306e\u767b\u9332<\/h3>\r\n<p><code>manage_edit-{post_type}_sortable_columns<\/code>\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u4f7f\u3063\u3066\u3001\u30bd\u30fc\u30c8\u53ef\u80fd\u306a\u30ab\u30e9\u30e0\u3092\u8ffd\u52a0\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\r\n<pre><code class=\"language-php\">$columns[&#39;categories&#39;] = &#39;category_name&#39;;  \/\/ \u30ab\u30c6\u30b4\u30ea\u30fc\u30ab\u30e9\u30e0\r\n$columns[&#39;author&#39;]     = &#39;author&#39;;         \/\/ \u6295\u7a3f\u8005\u30ab\u30e9\u30e0\r\n$columns[&#39;tags&#39;]       = &#39;tag_name&#39;;       \/\/ \u30bf\u30b0\u30ab\u30e9\u30e0\r\n<\/code><\/pre>\r\n<p>\u914d\u5217\u306e\u30ad\u30fc\u304c\u30ab\u30e9\u30e0\u540d\u3001\u5024\u304c\u30bd\u30fc\u30c8\u6642\u306b\u4f7f\u7528\u3059\u308borderby\u30d1\u30e9\u30e1\u30fc\u30bf\u3067\u3059\u3002<\/p>\r\n<h3 class=\"fz-ml\">3. \u30ab\u30c6\u30b4\u30ea\u30fc\u30fb\u30bf\u30b0\u306e\u30bd\u30fc\u30c8\u51e6\u7406<\/h3>\r\n<p>WordPress\u306e\u6a19\u6e96\u6a5f\u80fd\u3067\u306f\u3001\u30ab\u30c6\u30b4\u30ea\u30fc\u3084\u30bf\u30b0\u3067\u306e\u30bd\u30fc\u30c8\u306f\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001<code>posts_clauses<\/code>\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u4f7f\u3063\u3066SQL\u30af\u30a8\u30ea\u3092\u76f4\u63a5\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\r\n<p>\u30dd\u30a4\u30f3\u30c8\u306f<code>GROUP_CONCAT<\/code>\u3092\u4f7f\u3063\u3066\u3044\u308b\u70b9\u3067\u3059\u30021\u3064\u306e\u6295\u7a3f\u306b\u8907\u6570\u306e\u30ab\u30c6\u30b4\u30ea\u30fc\u30fb\u30bf\u30b0\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u305d\u308c\u3089\u3092\u30ab\u30f3\u30de\u533a\u5207\u308a\u3067\u9023\u7d50\u3057\u305f\u6587\u5b57\u5217\u3068\u3057\u3066\u30bd\u30fc\u30c8\u3057\u307e\u3059\u3002<\/p>\r\n<pre><code class=\"language-sql\">GROUP_CONCAT(t.name ORDER BY t.name ASC SEPARATOR &#39;, &#39;)\r\n<\/code><\/pre>\r\n<p>\u4f8b\u3048\u3070\u3001\u300cAPI, PHP, WordPress\u300d\u3068\u3044\u30463\u3064\u306e\u30bf\u30b0\u304c\u4ed8\u3044\u305f\u8a18\u4e8b\u306f\u3001\u300cAPI, PHP, WordPress\u300d\u3068\u3044\u3046\u6587\u5b57\u5217\u3068\u3057\u3066\u30bd\u30fc\u30c8\u3055\u308c\u307e\u3059\u3002<\/p>\r\n<h2 class=\"fz-xl\">\u30ab\u30b9\u30bf\u30e0\u6295\u7a3f\u30bf\u30a4\u30d7\u306b\u5bfe\u5fdc\u3055\u305b\u308b\u306b\u306f<\/h2>\r\n<p>\u30ab\u30b9\u30bf\u30e0\u6295\u7a3f\u30bf\u30a4\u30d7\uff08\u4f8b\uff1a<code>product<\/code>\uff09\u306b\u3082\u540c\u3058\u6a5f\u80fd\u3092\u8ffd\u52a0\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5909\u66f4\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\r\n<pre><code class=\"language-php\">\/\/ \u30bd\u30fc\u30c8\u53ef\u80fd\u30ab\u30e9\u30e0\u306e\u767b\u9332\u3092\u8ffd\u52a0\r\nadd_filter(&#39;manage_edit-product_sortable_columns&#39;, &#39;make_post_columns_sortable&#39;);\r\n\r\n\/\/ \u30bd\u30fc\u30c8\u51e6\u7406\u306e\u5bfe\u8c61\u753b\u9762\u3092\u8ffd\u52a0\r\nif (!$screen || !in_array($screen-&gt;id, array(&#39;edit-post&#39;, &#39;edit-page&#39;, &#39;edit-product&#39;), true)) {\r\n    return;\r\n}\r\n<\/code><\/pre>\r\n<h2 class=\"fz-xl\">\u307e\u3068\u3081<\/h2>\r\n<p>WordPress\u306e\u7ba1\u7406\u753b\u9762\u306f\u3001\u5c11\u3057\u306e\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3067\u5927\u5e45\u306b\u4f7f\u3044\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u7279\u306b\u8a18\u4e8b\u6570\u304c\u5897\u3048\u3066\u304f\u308b\u3068\u3001\u30ab\u30c6\u30b4\u30ea\u30fc\u3084\u30bf\u30b0\u3067\u306e\u30bd\u30fc\u30c8\u6a5f\u80fd\u306f\u4f5c\u696d\u52b9\u7387\u306b\u76f4\u7d50\u3057\u307e\u3059\u3002<\/p>\r\n<p>\u30ab\u30c6\u30b4\u30ea\u30fc\u306e\u7d5e\u308a\u8fbc\u307f\u30c9\u30ed\u30c3\u30d7\u30c0\u30a6\u30f3\u3067\u306f\u4e00\u62ec\u7de8\u96c6\u304c\u3067\u304d\u306a\u3044\u3068\u3044\u3046\u5236\u9650\u3082\u3001\u30bd\u30fc\u30c8\u6a5f\u80fd\u304c\u3042\u308c\u3070\u30ab\u30d0\u30fc\u3067\u304d\u307e\u3059\u3002\u305c\u3072\u6d3b\u7528\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>","protected":false},"excerpt":{"rendered":"WordPress\u306e\u6295\u7a3f\u4e00\u89a7\u30fb\u56fa\u5b9a\u30da\u30fc\u30b8\u4e00\u89a7\u3067\u30ab\u30c6\u30b4\u30ea\u30fc\u30fb\u6295\u7a3f\u8005\u30fb\u30bf\u30b0\u306e\u30ab\u30e9\u30e0\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u30bd\u30fc\u30c8\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u65b9\u6cd5\u3092\u89e3\u8aac\u3002functions.php\u306b\u30b3\u30d4\u30da\u3059\u308b\u3060\u3051\u3067\u3001\u4e00\u62ec\u7de8\u96c6\u306e\u4f5c\u696d\u52b9\u7387\u304c\u5927\u5e45\u306b\u30a2\u30c3\u30d7\u3057\u307e\u3059\u3002","protected":false},"author":1,"featured_media":10529,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[527,529,528,524,526,530,523,525,155,102],"class_list":{"0":"post-10395","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-wordpress","8":"tag-527","9":"tag-529","10":"tag-528","11":"tag-524","12":"tag-526","13":"tag-posts_clauses","14":"tag-523","15":"tag-525","16":"tag-functions-php","17":"tag-wordpress"},"_links":{"self":[{"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/posts\/10395","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/comments?post=10395"}],"version-history":[{"count":4,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/posts\/10395\/revisions"}],"predecessor-version":[{"id":10400,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/posts\/10395\/revisions\/10400"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/media\/10529"}],"wp:attachment":[{"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/media?parent=10395"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/categories?post=10395"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/tags?post=10395"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}