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Updating Customizations
Official Documentation
Updating Customizations Plugins (e.g., themes, apps, and customizations) you've developed must be adapted to the new Liferay version. This can be as simple as updating dependencies or involve...
Building a Custom Ticketing System
Official Documentation
Building a Custom Ticketing System Liferay makes it easy for you to build digital solutions. For example, you can create a custom ticketing application with the styling and features needed for your...
Defining a Custom Data Schema
Official Documentation
Defining a Custom Data Schema The ticketing application requires custom data fields and selections. You use Liferay objects and picklists to define a custom data schema. Creating Custom Picklists...
Deploying a Custom Application
Official Documentation
Deploying a Custom Application You can use a custom element client extension to render a JavaScript application as a widget on a Liferay site page. The application is served by Liferay and...
Implementing a Documentation Referral System
Official Documentation
Implementing a Documentation Referral System The ticketing system can be further enhanced with a documentation referral system. The system searches automatically for relevant documentation based on...
Ticket Management with Cron Jobs
Official Documentation
Ticket Management with Cron Jobs Use Cron jobs to automate managing tickets. For example, have a job to run at a regular schedule to delete any tickets that have a resolution type of duplicate or...
Applying a Custom Theme
Official Documentation
Applying a Custom Theme You can use different front-end client extensions to customize the look and feel of your site. Specifically, theme CSS type client extension can be used as an alternative to...
Building a Time Off Requester
Official Documentation
Building a Time Off Requester Liferay 7.4+ With Liferay Objects, you can build entire applications without writing code or deploying modules. Here, create a Time Off Request application using...
Asset Framework
Official Documentation
Asset Framework The asset framework is behind many of Liferay's most powerful features. It provides tools for displaying and interacting with any type of content and data. For example, if you build...
Enabling Assets
Official Documentation
Enabling Assets Many of Liferay's applications (e.g. Blogs, Documents and Media, Message Boards, etc.) are asset-enabled out of the box. You can publish assets with the Asset Publisher widget or...
Cache
Official Documentation
Cache
Expando
Official Documentation
Expando Accessing Custom Fields with Expando
Data Frameworks
Official Documentation
Data Frameworks
Data Scopes
Official Documentation
Data Scopes
Defining Entities
Official Documentation
Defining Entities Entities are the heart and soul of a service. They represent the map between the model objects in Java and your database fields and tables. Service Builder automatically maps your...
Adding Model Hints
Official Documentation
Adding Model Hints Once you've used Service Builder to define model entities, you may want to refine how users enter that data. Model hints specify entity data restrictions and other formatting....
Configuring Global Service Options
Official Documentation
Configuring Global Service Options A service's global options apply to all its entities. Here are the options: Dependency Injector Package path Multiversion concurrency control Namespace...
Defining Entity Finder Methods
Official Documentation
Defining Entity Finder Methods Finder methods retrieve entity objects from the database based on specified parameters. For each finder defined, Service Builder generates several methods to fetch,...
Accessing Custom Fields With Expandos
Official Documentation
Accessing Custom Fields With Expandos When you need additional fields in your application, you can always add them in your service model definition and re-run Service Builder. This adds new columns...
Implementing an Item Selector
Official Documentation
Implementing an Item Selector Item selectors are pop-up dialogs for selecting assets, such as documents, videos, or users. By configuring the item selector's criteria and defining its usage, you...
Service Builder
Official Documentation
Service Builder An application without reliable business logic or persistence isn't much of an application at all. Unfortunately, writing your own persistence code often takes a great deal of time....
Business Logic with Service Builder
Official Documentation
Business Logic with Service Builder Once you've generated model, persistence, and service code with Service Builder, you can begin adding business logic. Entities generated by Service Builder...
Defining Entity Columns
Official Documentation
Defining Entity Columns An entity's columns represent its attributes. These attributes map table fields to Java object fields. Here you'll examine the sample project from Understanding and...
Defining Entity Relationships
Official Documentation
Defining Entity Relationships Relationships between database entities or Java objects are necessary for most applications. Take Liferay's Message Boards application as an example. Each Message...
Modifying Database Fields in Development
Official Documentation
Modifying Database Fields in Development As you develop an application, you might need to add fields to your database. This is a normal process of iterative development: you get an idea for a new...
Service Builder Basics
Official Documentation
Service Builder Basics Using Service Builder helps you learn it. You'll use it to learn the basics: Generating Model, Persistence, and Service Code: Define a basic model, generate code from it,...
Upgrading Data Schemas
Official Documentation
Upgrading Data Schemas When you upgrade Liferay, you might run into incompatibility issues with your custom modules' data schemas. There are three ways you can resolve these issues: You can run...
Developing a Web Application
Official Documentation
Developing a Web Application
Sorting Entity Instances
Official Documentation
Sorting Entity Instances Often, you want to retrieve multiple instances of a given entity and list them in a particular order. The service.xml file lets you specify the default order of your...
Generating Model, Persistence, and Service Code
Official Documentation
Generating Model, Persistence, and Service Code Service Builder makes it easy to define models and generate model, persistence, and service code for them. You'll experience this by defining a model...
Invoking a Service Locally
Official Documentation
Invoking a Service Locally Service Builder services that are deployed to DXP/Portal can be invoked from other classes in the same JVM. These services are local to the classes. Service Builder...
Understanding and Extending Generated Classes
Official Documentation
Understanding and Extending Generated Classes Service Builder generates both tables for your entity and model, persistence, and service classes for it. Here you'll examine generated classes for an...
Backing Up Elasticsearch
Official Documentation
Backing Up Elasticsearch Elasticsearch replicas protect against a node going down, but they won't help you with a catastrophic failure. Only good backup practices can help you then. Backing Up...
Liferay High-Level Style
Liferay High-Level Style There are five types of documentation: Introduction: Placed hierarchically at the top of a section, the introduction is a high level explainer that summarizes how the...
Liferay Phraseology
Liferay Phraseology Liferay's style phrases prose a certain way. Note that these are also conventions and neither correct nor incorrect; they are the way we have chosen to communicate based on our...
Securing Elasticsearch
Official Documentation
Securing Elasticsearch The very first thing you must do to secure Elasticsearch is enable X-Pack Security. After that you can begin configuring authentication and encrypted communication. ...
Upgrading to Elasticsearch 7
Official Documentation
Upgrading to Elasticsearch 7 7.1 and 7.2 Liferay's connection to Elasticsearch 7.17.x servers is deprecated due to the End of Life for Elasticsearch 7.17. Connecting to a deprecated Elasticsearch...
Using the Sidecar or Embedded Elasticsearch
Official Documentation
Using the Sidecar or Embedded Elasticsearch Sidecar and embedded Elasticsearch are not suitable for production. When using an app server different other than Tomcat, set up a standalone...
Creating Forms Using Form Fragments
Official Documentation
Creating Forms Using Form Fragments Use form fragments to create and manage forms on content pages or page templates. With form fragments, you can map fields to objects, organize layouts, and...
Translating Fields in Form Containers
Official Documentation
Translating Fields in Form Containers Liferay DXP 2025.Q1+/Portal GA132+ Localize text inputs in form containers directly in the Page Editor to provide multilingual support for fields listed in...