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getCMSValidator() docs

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Ingo Schommer 2013-09-18 14:32:38 +02:00
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docs/en/topics/form-validation.md
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@ -131,6 +131,21 @@ An alternative (or additional) approach to validation is to place it directly
on the model. SilverStripe provides a `[api:DataObject->validate()]` method for this purpose. on the model. SilverStripe provides a `[api:DataObject->validate()]` method for this purpose.
Refer to the ["datamodel" topic](/topics/datamodel#validation-and-constraints) for more information. Refer to the ["datamodel" topic](/topics/datamodel#validation-and-constraints) for more information.
## Validation in the CMS
Since you're not creating the forms for editing CMS records,
SilverStripe provides you with a `getCMSValidator()` method on your models
to return a `[api:Validator]` instance.
:::php
class Page extends SiteTree {
private static $db = array('MyRequiredField' => 'Text');
public function getCMSValidator() {
return new RequiredFields(array('MyRequiredField'));
}
}
## Subclassing Validator ## Subclassing Validator
To create your own validator, you need to subclass validator and define two methods: To create your own validator, you need to subclass validator and define two methods: