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Example code of silverstripe/display-logic

Informations about the package display-logic

Display Logic Module for SilverStripe 4

Description

The Display Logic module allows you to add conditions for displaying or hiding certain form fields based on client-side behavior.

Example usage

Available comparison functions

- isEqualTo
- isNotEqualTo
- isGreaterThan
- isLessThan
- contains
- startsWith
- endsWith
- isEmpty
- isNotEmpty
- isBetween
- isChecked
- isNotChecked()
- hasCheckedOption
- hasCheckedAtLeast
- hasCheckedLessThan

Available display conditions

- displayIf()
- displayUnless()
- hideIf()
- hideUnless()

Kitchen sink example

Kitchen sink example, with chaining

Dealing with non-standard form fields

Sometimes you will want to wrap display logic around a form field that does not use the standard FormField template, such as GridField or LiteralField. For these cases, you can wrap the form field in UncleCheese\DisplayLogic\Forms\Wrapper.

What's the difference between displayIf() and hideUnless()?

Not much. hideUnless() will take a CSS class that hides it by default before the script loads, to eliminate any flash of form fields before the script has loaded. In general, use displayIf() when the common case is for the field to be hidden, and hideUnless() when the common case is for the field to be shown. The same logic applies to hideIf() and displayUnless().

All versions of display-logic with dependencies

PHP Build Version
Package Version
Requires php Version ^8.1
silverstripe/framework Version ^5.0
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