How to use validation for a fragment's text field?

Legacy Knowledge Base

Published Jun. 30, 2025

How to use validation for a fragment's text field?

Written By

Tamas Kovacs

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Issue

You want to create validation for a fragment's text field
When trying to validate a fragment's text field using Freemarker, it is not executed in the published editable field
The validation only works on the default value in the page editing view, but not on the final field after publishing

Environment

Liferay DXP 7.4

Resolution

Note: For this resolution, the text field has to be linked to a customObject.

Go to Control Panel > Objects > customObject > Validations > “+”
Give it a name and choose “Expression Builder” as Type > Save
Go to your "testValidation" > Set “Active Validation” to True
Go to "Conditions" and enter your RegEx validation rule.
Enter an error message of your preference
Save
Now, your text field's contents are validated upon submitting through the Objects framework.