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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Directory :  /home/rainic/public_html/wp-contentTZh/plugins/elementor/core/database/

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Current File : /home/rainic/public_html/wp-contentTZh/plugins/elementor/core/database/base-database-updater.php
<?php
namespace Elementor\Core\Database;

use Elementor\Core\Utils\Collection;

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly.
}

abstract class Base_Database_Updater {
	public function up( $force = false ) {
		$installed_version = $this->get_installed_version();

		if ( ! $force && $this->get_db_version() <= $installed_version ) {
			return;
		}

		$migrations = new Collection( $this->get_migrations() );

		if ( ! $force ) {
			$migrations = $migrations->filter( function ( $_, $version ) use ( $installed_version ) {
				return $version > $installed_version;
			} );
		}

		$migrations->map( function ( Base_Migration $migration, $version ) {
			$migration->up();

			$this->update_db_version_option( $version );
		} );

		$this->update_db_version_option( $this->get_db_version() );
	}

	public function register() {
		add_action( 'admin_init', function () {
			$this->up();
		} );
	}

	protected function update_db_version_option( $version ) {
		update_option( $this->get_db_version_option_name(), $version );
	}

	protected function get_installed_version() {
		return intval( get_option( $this->get_db_version_option_name() ) );
	}

	abstract protected function get_db_version();

	abstract protected function get_db_version_option_name(): string;

	abstract protected function get_migrations(): array;
}

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