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Using Read-Only Fields
Official Documentation
Using Read-Only Fields Some use cases may require data fields to be read-only. For example, data integrity may require some field values to remain immutable, or you may need to prevent unauthorized...
Adding Fields to Objects
Official Documentation
Adding Fields to Objects Liferay DXP 2023.Q4+/Portal GA102+ Fields are data definitions that represent database columns and store different types of values. By default, all objects include these...
Formula Fields
Official Documentation
Formula Fields Liferay DXP 2023.Q4+/Portal GA102+ Formula fields provide read-only values calculated using numeric fields in the object definition. Unlike other fields, formula values are...
Picklist Fields
Official Documentation
Picklist Fields Liferay 7.4 U72+/GA72+ Picklists define lists of text values usable as single select or multi-select fields in object definitions. By default, single select fields appear as...
Adding and Managing Custom States
Official Documentation
Adding and Managing Custom States Liferay 7.4+ Some use cases may require assigning multiple states to an object entry at the same time. For example, when building an Order application, you may...
Aggregation Fields
Official Documentation
Aggregation Fields Liferay 7.4 U47+/GA47+ Aggregation fields perform basic calculations on the entries from a relationship table and display the resulting values. Available aggregation functions...
Auto-Increment Fields
Official Documentation
Auto-Increment Fields DXP 2024.Q1+/Portal GA112+ Auto-Increment fields are configurable read-only fields for uniquely identifying object entries in a human-readable format. For example, an IT...
Adding Categorization to Fields Tabs
Official Documentation
Adding Categorization to Fields Tabs Liferay 7.4 U31+/GA31+ You can add categorization blocks to fields tabs so end users can apply tags and categories to object entries. Follow these steps: ...
Designing Object Layouts
Official Documentation
Designing Object Layouts Liferay 7.4 U31+/GA31+ Layouts define how fields and relationships appear when creating and editing object entries. Each layout can include multiple tabs containing...
Localizing Object Definitions and Entries
Official Documentation
Localizing Object Definitions and Entries Liferay DXP 2023.Q3+/Portal GA92+ Liferay objects are integrated with the localization framework, so you can add translations for definition labels, and...
Accessing Accounts Data from Custom Objects
Official Documentation
Accessing Accounts Data from Custom Objects Liferay 7.4 U35+/GA35+ In some use cases, you may want to access account data from a custom object. For example, if you're building a custom returns...
Using System Objects with Custom Objects
Official Documentation
Using System Objects with Custom Objects
Scheduling and Subscription
Official Documentation
Scheduling and Subscription [Beta Feature](../../../security-and-administration/administration/configuring-liferay/feature-flags.md#beta-feature-flags) (LPD-17564) Liferay DXP 2025.Q4+/Portal...
Adding Field Validations
Official Documentation
Adding Field Validations Liferay DXP 2023.Q3+/Portal GA92+ Validations set rules for determining valid field entries. Each validation has its own trigger, conditions, and error message, which you...
Using Object Inheritance
Official Documentation
Using Object Inheritance [Release Feature (LPD-34594)](../../../../security-and-administration/administration/configuring-liferay/feature-flags.md#release-feature-flags) Liferay DXP...
Organizing Objects with Folders
Official Documentation
Organizing Objects with Folders By default, object definitions are grouped in the Uncategorized folder, but you can add object folders to organize data models and manage access to definitions. ...
Removing Relationships
Official Documentation
Removing Relationships Liferay 7.4 U26+/GA26+ You can remove relationships from both draft and published object definitions. Removing a relationship permanently deletes its field from the related...
Validations
Official Documentation
Validations Liferay 7.4+ Object validations set rules for determining valid field inputs. You can define validations with Groovy scripts, Liferay expressions, or a specified Composite Key...
Expression Builder Validations Reference
Official Documentation
Expression Builder Validations Reference Liferay 7.4 U67+/GA67+ You can create object field validations using Liferay's Expression Builder. This tool provides an integrated editor for quickly...
Managing Objects with Headless APIs
Official Documentation
Managing Objects with Headless APIs Liferay 7.4+ You can create and manage objects from the Applications menu, but you can also use Liferay's REST APIs. Call these services to create and manage...