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言語キーの名称変更
Renamed Language Keys In Liferay DXP/Portal 7.4, module language keys were centralized to a module called portal-language-lang. Source location: ...
データベースの移行
Official Documentation
Migrating the Database For support, maintenance, or performance reasons, you may decide to migrate from the database you use to one of the other databases Liferay supports. Liferay DXP provides a...
データベースをPostgreSQLに移行する
Official Documentation
Migrating Your Database to PostgreSQL Liferay DXP 2026.Q3+ Migrating a Liferay DXP database to PostgreSQL has two phases. First, export the database schema to SQL files from either Server...
アップグレード後の考慮事項
Official Documentation
Post-Upgrade Considerations After upgrading the database, you should configure Liferay for production again and check up on feature changes that might affect your Liferay instance. Re-enable...
アップグレードの準備
Official Documentation
Preparing for an Upgrade Preparation and planning may be of little consequence for small, casual installations but is mandatory for large enterprise-level installations. There are specific...
データ初期化
Data Cleanup Liferay executes data cleanup processes to repair databases with obsolete data. This lightens the load during an upgrade, improving performance and reducing overhead. As of Liferay...
Liferay DXP 2026.Q3 の互換性のない変更点
Official Documentation
Liferay DXP 2026.Q3 Breaking Changes Breaking changes break or significantly alter existing functionality or code structure. Here are all of the breaking changes for Liferay DXP 2026.Q3. As the...
7.3 旧バージョンと非互換の変更
Official Documentation
7.3 Breaking Changes This document presents a chronological list of changes that break existing functionality, APIs, or contracts with third party Liferay developers or users. We try our best to...
7.3 非推奨および重大な変更
7.3 Deprecations and Breaking Changes
7.4 旧バージョンと非互換の変更
Official Documentation
7.4 Breaking Changes Breaking changes break or significantly alter existing functionality or code structure. Here are all of the breaking changes for Liferay 7.4, starting with the latest quarterly...
7.3のメンテナンスモードと非推奨
Maintenance Mode and Deprecations in 7.3 With each new DXP release, a feature may not warrant continued enhancements or may become obsolete. Stopping enhancements for a feature puts it in...
7.3でのデフォルト設定の変更
Default Setting Changes in 7.3 Most new versions of Liferay DXP include changes to the default settings. If you rely on the defaults from your old version, you should review the changes and decide...
7.4 非推奨および重大な変更
7.4 Deprecations and Breaking Changes
7.4 でのデフォルト設定と機能フラグの変更
Default Setting and Feature Flag Changes in 7.4 Most new versions of Liferay DXP include changes to the default settings. If you rely on the defaults from your old version, you should review the...
7.4のメンテナンスモードと非推奨
Maintenance Mode and Deprecations in 7.4 With each new Liferay DXP and Liferay Portal release, a feature may not warrant continued enhancements or may become obsolete. Stopping enhancements for a...
アップグレードを高速化するためのデータベースプルーニング
Database Pruning for Faster Upgrades The more data you have the longer your data upgrade takes. Unneeded site data is a common occurrence. Pruning the database of unneeded data improves upgrade...
例：ジャーナル記事の中間バージョンの削除
Example: Removing Intermediate Journal Article Versions These instructions and code samples demonstrate removing intermediate Journal Article versions. In the script console, you can remove...
複数の表示ページテンプレートを使用して複数ステップのアプリケーションを作成する
Official Documentation
Using Multiple Display Page Templates to Create Multi-Step Applications Liferay DXP 2023.Q4+/Portal GA102+ Display page templates display content at a dedicated URL. To use this URL and view the...
アセットパブリッシャーウィジェットの使用
Official Documentation
Using the Asset Publisher Widget The Asset Display widget displays individual pieces of content from various sources like blogs, web content, and documents. You can use it to highlight specific...
アセットパブリッシャー表示設定の構成
Official Documentation
Configuring the Asset Publisher Display Settings When using an Asset Publisher widget, you can configure several display settings to specify how users view your content. Create a new page or...
LARファイルを使用したデータのエクスポート/インポート
Official Documentation
Exporting/Importing Data with LAR Files Liferay 2026.Q1+ You can use Liferay Archive (LAR) files to transfer data between Liferay environments, including pages, widgets, or instance-wide data...
表示ページを使用したコンテンツの公開
Official Documentation
Publishing Content With Display Pages You can use display page templates to create reusable dynamic designs for displaying content items at their friendly URLs. After designing the template, you...
情報テンプレートの使用
Official Documentation
Using Information Templates Available 7.4+ With Information Templates, you can create FreeMarker templates for any item type that implements the Info Framework. Supported item types include web...
アセットパブリッシャーのサブスクリプションの設定
Official Documentation
Configuring Asset Publisher Subscriptions The Asset Publisher supports two kinds of subscriptions: email subscriptions and RSS feed subscriptions. Email Subscriptions Users can subscribe to the...
アセットパブリッシャーウィジェットを使用したアセットの表示
Official Documentation
Displaying Assets Using the Asset Publisher Widget As you create web content, remember that pieces of content are assets like message board entries and blog posts. The most common type of asset is...
インポートにおける参照の欠落の処理
Official Documentation
Handling Missing References in Imports Liferay DXP 2025.Q3 When importing content, page, or user-related data (such as categories, tags, vocabularies, fragments, master pages, layout page template...
サイト構築の始め方
Official Documentation
Getting Started with Site Building Sites are a fundamental component of Liferay DXP. A site is a collection of pages with content and applications that provide functionality. When you start your...
サイトの最適化
Official Documentation
Optimizing Sites From having top-tier SEO, to understanding and acting on your site's content, to building a site that is accessible to all types of users, Liferay provides tools for identifying...
A/B Testing
Official Documentation
A/B Testing Subscription Liferay DXP 7.2 SP1+ With A/B Testing, you can determine the most effective version of your content by testing variations on different users. The majority of visitors see...
A/Bテストの作成
Official Documentation
Creating A/B Tests Before creating A/B tests, remember these things: You can create a test for a default Experience or a personalized Experience mapped to a Segment. You can only create an A/B...
A/Bテスト結果のレビューとテストバリアントの公開
Official Documentation
Reviewing A/B Test Results and Publishing Test Variants When the A/B Test finishes, you can find the test results in Analytics Cloud and Liferay DXP. Analytics Cloud declares a winner when the...
A/Bテストの実行と監視
Official Documentation
Running and Monitoring A/B Tests You can configure these parameters when you run the A/B Test: Traffic Split: The percentage of visitors randomly split between the original and the variant when...
A/Bテスト要件の確認
Official Documentation
Verifying A/B Test Requirements Before running A/B Testing on your Content pages, you must verify these requirements are met: Liferay DXP is connected to Analytics Cloud. Fore information on how...
レスポンシブサイトの構築
Official Documentation
Building a Responsive Site More than half of all page views in the world come from mobile devices like phones and tablets. Any site should look as good when viewed by a mobile device as it does on...
グリッドフラグメントを使用したレスポンシブレイアウトの構築
Official Documentation
Building Responsive Layouts with the Grid Fragment Availability: Liferay DXP 7.3+. Liferay DXP uses responsive design by default, but there are situations where you want additional and more...
モバイルデバイスルールの作成
Official Documentation
Creating Mobile Device Rules Available in Liferay 7.2 and prior as it is deprecated in 7.3 As a prerequisite, you must install the Liferay Mobile Device Detection Lite (LMDD) app from Liferay...
シミュレーションパネルの使用
Official Documentation
Using the Simulation Panel Available Liferay DXP 2023.Q4+/Portal GA102+ You can verify your page's responsiveness by simulating different scenarios. With Liferay, use the Simulation panel to...
llms.txt の設定
Official Documentation
Configuring llms.txt Liferay DXP 2026.Q3+ [Beta Feature](../../security-and-administration/administration/configuring-liferay/feature-flags.md#beta-feature-flags) In Liferay DXP, llms.txt is a...
SEOとメタデータの設定リファレンス
Official Documentation
SEO and Metadata Configuration Reference Optimizing SEO and metadata is essential for improving site visibility in search engines and ensuring content is properly indexed and displayed across...
シングルページアプリケーション（SPA）
Single-Page Application (SPA) Rendering a page from scratch takes a lot of effort from the browser. It must load the HTML markup, the CSS, and any JavaScript, render and style the markup, and...

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