SettingField.php

<?php


namespace App\Traits\Nova;

use App\Setting;
use Laravel\Nova\Http\Requests\NovaRequest;

trait SettingField
{
    /**
     * Resolve the field's value.
     *
     * @param  mixed  $resource
     * @param  string|null  $attribute
     * @return void
     */
    public function resolve($resource, $attribute = null)
    {
        $this->resource = $resource;

        $attribute = $attribute ?? $this->attribute;

        if ($attribute === 'ComputedField') {
            $this->value = call_user_func($this->computedCallback, $resource);

            return;
        }

        if (! $this->resolveCallback) {
            $setting = $this->component == 'boolean-field' ? (int) setting($attribute) : setting($attribute);
            $this->value = $setting;
        } elseif (is_callable($this->resolveCallback)) {
            tap($this->resolveAttribute($resource, $attribute), function ($value) use ($resource, $attribute) {
                $this->value = call_user_func($this->resolveCallback, $value, $resource, $attribute);
            });
        }
    }

    /**
     * Hydrate the given attribute on the model based on the incoming request.
     *
     * @param NovaRequest $request
     * @param  string  $requestAttribute
     * @param  object  $model
     * @param  string  $attribute
     * @return void
     */
    protected function fillAttributeFromRequest(NovaRequest $request, $requestAttribute, $model, $attribute)
    {
        if ($request->exists($requestAttribute)) {
            $value = $request[$requestAttribute];

            $this->set($attribute, $this->isNullValue($value) ? null : $value);
        }
    }

    /**
     * @param string $key
     * @param string|null $value
     */
    protected function set(string $key, ?string $value)
    {
        Setting::updateOrCreate(
            ['key' => $key],
            ['value' => $value]
        );
    }
}