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Sharing Localized Messages As you work on an application you might have multiple modules, each of which with its own language keys. Instead of maintaining various language properties files in...

Using React Build your own solutions using Liferay and React.

React Component Utilities Reference Several useful tools are available to help you build high-performance components and applications in Liferay DXP using React: frontend-js-react-web module ...

Remote Applications with Headless APIs Available 7.4+ After creating and publishing objects, headless REST APIs are automatically generated. Here you'll see how to integrate these endpoints to...

Using Spring If you love the Spring Framework and the Model-View-Controller (MVC) pattern, you can develop portlets using PortletMVC4Spring. If you use this framework, you may already be familiar...

Developing a PortletMVC4Spring Portlet PortletMVC4Spring compliments the Spring Web framework and MVC design pattern by providing annotations that map portlet requests to Controller classes and...

Migrating to PortletMVC4Spring and Jakarta There are two possible migrations: You've already used PortletMVC4Spring, and you want to migrate your application to Jakarta. You want to migrate a...

PortletMVC4Spring Configuration Files A PortletMVC4Spring application has these descriptors, Spring contexts, and properties files in its WEB-INF folder: web.xml → Web application descriptor ...

Reference PortletMVC4Spring integrates Spring, the Spring Web Framework, and the MVC design pattern with portlet development. As such, it uses configuration files from each of these areas and...

PortletMVC4Spring Annotations PortletMVC4Spring provides several annotations for mapping requests to controller classes and controller methods. @RenderMapping Annotation Examples...

PortletMVC4Spring Project Anatomy PortletMVC4Spring portlets are packaged in WARs. Liferay provides project templates for creating projects configured to use JSP/JSPX and Thymeleaf templates. Their...

Extending Liferay Liferay DXP/Portal is highly customizable. Its modular architecture contains components you can extend and override dynamically using APIs.

Creating a Model Listener Model listeners listen for persistence method calls that signal changes to a specified model (such as update or add methods). Most of the methods model listeners use are...

Creating Service Wrappers With Service Wrappers, you can override default service methods to add extra functionality. For example, you may want the value of a field you've added to Liferay's User...

Customizing JSPs with Dynamic Includes The liferay-util:dynamic-include tag is a placeholder into which you can inject content---JavaScript code, HTML, and more. The example project demonstrates...

Customizing Localization Liferay ships with 55 translations, making it ideal for deployments all over the world. Sometimes, however, you must modify a translation or provide a new one. Here you can...

Adding a Language Liferay ships with over 50 languages out-of-the-box. Translation is complete for many of these languages, and some are still in the translation process. Each language has its own...

Generating Translations Automatically Liferay DXP supports 50 languages out-of-the-box. Each locale has its own language properties file containing keys for its language. When you create an...

Overriding Module Language Translations For Liferay DXP 7.4 U4/Portal 7.4 GA8+, the Language Override tool is the recommended approach. Overriding language translations in specific applications...

Overriding Global Language Translations with Language Properties Liferay DXP/Portal implements headings, labels, and messages for many locales using language translations. You can override these...

Overriding JSPs You can override JSPs completely using OSGi fragments. This approach is powerful but can make things unstable when the host module is upgraded. By overriding an entire JSP, you...

Overriding OSGi Services Liferay's OSGi container is a dynamic environment in which services can be added, removed, or overridden as needed. This framework registers Liferay components with the...

Using Portlet Filters Portlet filters intercept requests and responses at the start of each portlet request processing phase so you can add functionality there. This makes them useful for auditing...

Issue After creating public and private pages in DXP 7.3 and then creating a Master Page Template Design and a Display Page Template Design with the private pages, you should be able to see private pages in the Navigation bar of "Private page display page template". But instead, you see...

Note: please note that Liferay has renamed its Liferay Experience Could offerings to Liferay SaaS (formerly LXC) and Liferay PaaS (formerly LXC-SM). Issue Liferay Learn (learn.liferay.com) is not loading properly and looks distorted such as below when accessed. Environment Any browser...

Issue What "product keys" are valid to configure for the liferay.workspace.product= property in gradle.properties? How can I select the proper "product key" value for Liferay Workspace? Environment Liferay Workspace DXP 7.0+ Resolution For Quarterly Releases: There is a new index file:...

Issue After setting dl.store.impl= in portal-upgrade-ext.properties and using the upgrade tool to upgrade from 7.0 to 7.4, login fields are greyed out in 7.4. Environment 7.4 Resolution Double check your upgrade configuration and process per 7.4 upgrade documentation. The presence of the...

Issue Filtering by date is not working in API explorer. Results return no objects and there are errors in the log similar to: java.lang.UnsupportedOperationException: Unsupported method getColumn with field name dateCreated Environment 7.4 Resolution Update to 7.4 u47+ LPS-163011,...

Note: please note that Liferay has renamed its Liferay Experience Could offerings to Liferay SaaS (formerly LXC) and Liferay PaaS (formerly LXC-SM). Issue When attempting to export a fragment with a name containing accent or special characters, a blank page is displayed and the following...

Issue While searching for a content of Wiki Portlet in search tool having only Wiki as Current configuration, searched text is not highlighted. Steps to reproduce: 1. Start Liferay DXP 7.4 U30. 2. Create a wiki page. Navigate to Content and data > Wiki and create some content inside...

Issue The guest user observed the message "Redirecting to your identity provider" showed up before the OKTA user login screen showed up. The behavior just happened after upgrading the environment to 7.4 Update 56. We don't want the front-end users to see this message.  Environment...

Issue We receive an Error after inserting Moin.ai Javascript on a clean page.   Environment Liferay DXP 7.4   Resolution Currently, moin.ai is not a supported Chat Provider. Please find more information and the list of the supported Chat Providers here: Enabling Automated Live Chat...

Issue We are trying to import a LAR from one instance to another. We are noticing that if the LAR has structures which include fieldsets the following error is getting thrown while importing the LAR and the process is failing. There are missing references that could not be found in the...

Issue Patching tool commands fail with below error even when a new hotfix is placed inside patches folder: "The command has failed. Please see the log for details."  Environment Liferay DXP 7.0 Liferay DXP 7.1 Liferay DXP 7.2 Liferay DXP 7.3 Liferay DXP 7.4 Resolution This error occurs...

Issue Users need to delete the web content article version with the help of the groovy script. Environment Liferay DXP 7.4 Resolution Please Note:  The below script is only a template that is meant to serve as a starting place to go off and develop your own custom script at your team's...

Issue  Is there any way to configure the commerce search bar to, for example, only work with Catalog results? Environment Liferay DXP 7.4 Commerce Resolution Currently, it's not possible to restrict the commerce search bar. The product team is currently evaluating combining the commerce...

Issue Search facet widgets ignore the "Allow Empty Searches" option when used in conjunction with a Search Blueprint. When a search page is configured with Search Blueprint, search facets are being populated with content when a search is not performed, even when the "Allow Empty...

Issue An error "The content references a missing page" occurs when publishing a web content. I checked the content but I could not find any reference to invalid page.   Environment Liferay DXP 7.3   Resolution The missing page may be referenced by an old version of the web content. You...

Issue The following error is observed repeatedly in the log: ERROR [default task-522][runtime:60] Error executing FreeMarker template FreeMarker template error: Java method "com.liferay.portlet.expando.model.impl.ExpandoBridgeImpl.getAttribute(String)" threw an exception when invoked on...

Issue While creating the product via a headless API and providing the SKUs field, the price is not updated. It's showing as 0. Steps to reproduce: 1. Start Liferay DXP 7.4 U54. 2. Navigate to Commerce > Options. 3. Create option 'City' and provide the values 'Delhi' and 'Mumbai'. 4....