晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Current File : /home/rainic/www/oldTZh/wp-content/plugins/wordpress-seo/src/helpers/attachment-cleanup-helper.php
<?php

namespace Yoast\WP\SEO\Helpers;

use Yoast\WP\Lib\Model;

/**
 * A helper object for the cleanup of attachments.
 */
class Attachment_Cleanup_Helper {

	/**
	 * Removes all indexables for attachments.
	 *
	 * @param bool $suppress_errors Whether to suppress db errors when running the cleanup query.
	 *
	 * @return void
	 */
	public function remove_attachment_indexables( $suppress_errors ) {
		global $wpdb;

		if ( $suppress_errors ) {
			// If migrations haven't been completed successfully the following may give false errors. So suppress them.
			$show_errors       = $wpdb->show_errors;
			$wpdb->show_errors = false;
		}

		$indexable_table = Model::get_table_name( 'Indexable' );

		$delete_query = "DELETE FROM $indexable_table WHERE object_type = 'post' AND object_sub_type = 'attachment'";

		// phpcs:disable WordPress.DB.DirectDatabaseQuery.NoCaching -- Reason: No relevant caches.
		// phpcs:disable WordPress.DB.DirectDatabaseQuery.DirectQuery -- Reason: Most performant way.
		// phpcs:disable WordPress.DB.PreparedSQL.NotPrepared -- Reason: Is it prepared already.
		$wpdb->query( $delete_query );
		// phpcs:enable

		if ( $suppress_errors ) {
			$wpdb->show_errors = $show_errors;
		}
	}

	/**
	 * Cleans all attachment links in the links table from target indexable ids.
	 *
	 * @param bool $suppress_errors Whether to suppress db errors when running the cleanup query.
	 *
	 * @return void
	 */
	public function clean_attachment_links_from_target_indexable_ids( $suppress_errors ) {
		global $wpdb;

		if ( $suppress_errors ) {
			// If migrations haven't been completed successfully the following may give false errors. So suppress them.
			$show_errors       = $wpdb->show_errors;
			$wpdb->show_errors = false;
		}

		$links_table = Model::get_table_name( 'SEO_Links' );

		$query = "UPDATE $links_table SET target_indexable_id = NULL WHERE type = 'image-in'";

		// phpcs:disable WordPress.DB.DirectDatabaseQuery.NoCaching -- Reason: No relevant caches.
		// phpcs:disable WordPress.DB.DirectDatabaseQuery.DirectQuery -- Reason: Most performant way.
		// phpcs:disable WordPress.DB.PreparedSQL.NotPrepared -- Reason: Is it prepared already.
		$wpdb->query( $query );
		// phpcs:enable

		if ( $suppress_errors ) {
			$wpdb->show_errors = $show_errors;
		}
	}
}

haha - 2025