/*** 文章列表添加自定义字段* https://www.iowen.cn/wordpress-quick-edit*/
//如果是默认文章，请使用 manage_post_posts_columns 钩子，这里是自定义文章类型 sites
add_filter('manage_edit-sites_columns', 'io_ordinal_manage_posts_columns');
function io_ordinal_manage_posts_columns($columns){$columns['ordinal']    = '排序'; $columns['visible']    = '可见性'; return $columns;
}
add_action('manage_posts_custom_column','io_ordinal_manage_posts_custom_column',10,2);
function io_ordinal_manage_posts_custom_column($column_name,$id){ switch( $column_name ) :case 'ordinal': {echo get_post_meta($id, '_sites_order', true);break;}case 'visible': {echo get_post_meta($id, '_visible', true)? "管理员" : "所有人";break;}endswitch;
}

add_action( 'admin_head', 'io_custom_css' );
function io_custom_css(){echo '<style>#ordinal{/*名称与上方代码对应*/width:80px;} </style>';
}

add_action('quick_edit_custom_box',  'io_add_quick_edit', 10, 2);
function io_add_quick_edit($column_name, $post_type) {if ($column_name == 'ordinal') {//值与前方代码对应//请注意：<fieldset>类可以是：//inline-edit-col-left，inline-edit-col-center，inline-edit-col-right//所有列均为float：left，//因此，如果要在左列，请使用clear：both元素echo '<fieldset class="inline-edit-col-left" style="clear: both;"><div class="inline-edit-col"> <label class="alignleft"><span class="title">排序</span><span class="input-text-wrap"><input type="number" name="ordinal" class="ptitle" value=""></span></label> <em class="alignleft inline-edit-or"> 越大越靠前</em></div></fieldset>';}
}

/** * 文章列表添加自定义字段 * https://www.iowen.cn/wordpress-quick-edit*/
add_action('save_post', 'io_save_quick_edit_data');
function io_save_quick_edit_data($post_id) {//如果是自动保存日志，并非我们所提交数据，那就不处理if ( defined('DOING_AUTOSAVE') && DOING_AUTOSAVE )return $post_id;// 验证权限，'sites' 为文章类型，默认为 'post' ,这里为我自定义的文章类型'sites'if ( 'sites' == $_POST['post_type'] ) {if ( !current_user_can( 'edit_page', $post_id ) )return $post_id;} else {if ( !current_user_can( 'edit_post', $post_id ) )return $post_id;}  $post = get_post($post_id); // 'ordinal' 与前方代码对应if (isset($_POST['ordinal']) && ($post->post_type != 'revision')) {$left_menu_id = esc_attr($_POST['ordinal']);if ($left_menu_id)update_post_meta( $post_id, '_sites_order', $left_menu_id);// ‘_sites_order’为自定义字段}
}

/*** 文章列表添加自定义字段* https://www.iowen.cn/wordpress-quick-edit*/
add_action('admin_footer', 'ashuwp_quick_edit_javascript');
function ashuwp_quick_edit_javascript() {$current_screen = get_current_screen(); //条件判断，注意修改为对应值if (!is_object($current_screen) || ($current_screen->post_type != 'sites'))return;if($current_screen->id == 'edit-sites'){//修改下方 js 代码中的 ordinal 为前方代码对应的值echo"<script type='text/javascript'>jQuery(function($){var wp_inline_edit_function = inlineEditPost.edit;inlineEditPost.edit = function( post_id ) {wp_inline_edit_function.apply( this, arguments );var id = 0;if ( typeof( post_id ) == 'object' ) {id = parseInt( this.getId( post_id ) );}if ( id > 0 ) {var specific_post_edit_row = $( '#edit-' + id ),specific_post_row = $( '#post-' + id ),product_price = $( '.column-ordinal', specific_post_row ).text(); $('input[name="ordinal"]', specific_post_edit_row ).val( product_price ); }}});</script>";}
}

/*** 文章列表添加自定义字段* https://www.iowen.cn/wordpress-quick-edit*/
//此部分功能是生成分类下拉菜单
add_action('restrict_manage_posts','io_post_type_filter',10,2);
function io_post_type_filter($post_type, $which){if('sites' !== $post_type){ //这里为自定义文章类型，需修改return; //检查是否是我们需要的文章类型}$taxonomy_slug     = 'favorites'; //这里为自定义分类法，需修改$taxonomy          = get_taxonomy($taxonomy_slug);$selected          = '';$request_attr      = 'favorites'; //这里为自定义分类法，需修改if ( isset($_REQUEST[$request_attr] ) ) {$selected = $_REQUEST[$request_attr];}wp_dropdown_categories(array('show_option_all' =>  __("所有{$taxonomy->label}"),'taxonomy'        =>  $taxonomy_slug,'name'            =>  $request_attr,'orderby'         =>  'name','selected'        =>  $selected,'hierarchical'    =>  true,'depth'           =>  5,'show_count'      =>  true,  'hide_empty'      =>  false,  ));
}
//此部分功能是列出指定分类下的所有文章
add_filter('parse_query','io_work_convert_restrict');
function io_work_convert_restrict($query) {  global $pagenow;  global $typenow;  if ($pagenow=='edit.php') {  $filters = get_object_taxonomies($typenow);  foreach ($filters as $tax_slug) {  $var = &$query->query_vars[$tax_slug];  if ( isset($var) && $var>0) {  $term = get_term_by('id',$var,$tax_slug);  $var = $term->slug;  }  }  }  return $query;
}