Nova Subfield DependsOn

This Laravel Nova package includes an interface and middleware to allow fields that contain subfields (such as Dependable Panel, or Flexible Content) to allow those subfields to use the dependsOn functionality within Laravel Nova 4.

As long as all fields that contain subfields implement the interface methods any subfield could be nested within any field to any depth.

Requirements

• php: >=8.0
• laravel/nova: ^4.0

Installation

1. Install the package in to a Laravel app that uses Nova via composer:

composer require formfeed-uk/nova-subfield-dependson

Usage

Simply implement the included interface onto any Field you wish to allow subfields to use the dependsOn functionality

hasSubFields

    public function hasSubfields(): bool;

This method should return a boolean value to indicate whether the current instance of your field has subfields that require the dependsOn functionality.

getSubfields

    public function getSubfields(): FieldCollection;

This method should return a FieldCollection of the subfields that require the dependsOn functionality

afterDependsOnSync

    public function afterDependsOnSync() : self;

This method is run after any dependsOn sync where additional logic may be required. This may simply return $this; where no additional logic is required.

Known Issues

Due to how Nova's DependantComponentKey works If a field uses the same Class, Component, and Attribute as another subfield within the same request this could cause a collision, where the wrong field is found. An upcoming release will include a macro for Laravel\Nova\Fields\Field to allow you to set your own DependantComponentKey method.