README

Note

This is added within Laravel Nova now: https://nova.laravel.com/docs/resources/fields.html#dependent-fields

Dynamic select field for Laravel Nova

This field allows you to dynamically fill contents of a select based on values in other dynamic select fields.

Field is based on nova-belongs-to-dependency but instead of selecting model, you can select custom values.

Installation

composer require royduin/laravel-nova-field-dynamic-select 

Usage

Class has 5 special methods on top of default Select from Laravel Nova.

• dependsOn can take a list of other fields this one depends on. On initial page load the list will be null, so make sure to check for null before accessing.
• default can take a list of other fields this one depends on.
• options can be either an array or a callable.
• forAction to indicate that the dynamic select is running in an action.
• colors (optional) to choose which colors to use when highlighting options. Accepts an array with 4 different hexadecimal colors:
  • highlightBgColor: Color of the background when the cursor is over an option
  • highlightTextColor: Color of the text when the cursor is over an option
  • selectedHighlightBgColor: Color of the background when the cursor is over a selected option
  • selectedHighlightTextColor: Color of the text when the cursor is over a selected option

If its a callable, it will receive array with selected dependency values as first argument and should return an array of items to be shown on the select field.

Example

public function fields(Request $request) { return [ ID::make()->sortable(), DynamicSelect::make('Country', 'country') ->options(['US' => 'United States', 'UK' => 'United Kingdom']) ->rules('required') ->colors([ 'highlightBgColor' => '#0f0', 'highlightTextColor' => '#fff', 'selectedHighlightBgColor' => '#f00', 'selectedHighlightTextColor' => '#fff', ]) , DynamicSelect::make('Provider', 'provider') ->options(['PR' => 'Premium', 'ST' => 'Standard']) ->rules('required') , DynamicSelect::make('Product', 'product') ->dependsOn(['country', 'provider']) ->options(function($values) { if($values['country'] === 'UK' && $values['provider'] === 'PR') { return ['A' => 'Fast shipping', 'B' => 'Normal shipping', 'C' => 'Free shipping']; } else { return ['A' => 'Fast shipping', 'B' => 'Normal shipping']; } }) ->default(function ($values) { if (! $values) { return null; } if ($values['country'] === 'UK') { return [ 'label' => 'Normal shipping', 'value' => 'B' ]; } }) ->rules('required') , ]; } 

Example for use in Nova Actions

public function fields(Request $request) { return [ ID::make()->sortable(), DynamicSelect::make('Country', 'country') ->forAction(self::class) ->options(['US' => 'United States', 'UK' => 'United Kingdom']) ->rules('required') , DynamicSelect::make('Provider', 'provider') ->forAction(self::class) ->options(['PR' => 'Premium', 'ST' => 'Standard']) ->rules('required') , DynamicSelect::make('Product', 'product') ->forAction(self::class) ->dependsOn(['country', 'provider']) ->options(function($values) { if($values['country'] === 'UK' && $values['provider'] === 'PR') { return ['A' => 'Fast shipping', 'B' => 'Normal shipping', 'C' => 'Free shipping']; } else { return ['A' => 'Fast shipping', 'B' => 'Normal shipping']; } }) ->rules('required') , ]; }