Current File : //home/forge/api-takeaseat.eco-n-tech.co.uk/vendor/laravel/nova/src/Fields/HasOneThrough.php
<?php
namespace Laravel\Nova\Fields;
use Illuminate\Http\Request;
use Laravel\Nova\Contracts\ListableField;
use Laravel\Nova\Contracts\RelatableField;
use Laravel\Nova\Http\Requests\NovaRequest;
use Laravel\Nova\Nova;
class HasOneThrough extends Field implements ListableField, RelatableField
{
/**
* The field's component.
*
* @var string
*/
public $component = 'has-one-through-field';
/**
* The class name of the related resource.
*
* @var string
*/
public $resourceClass;
/**
* The URI key of the related resource.
*
* @var string
*/
public $resourceName;
/**
* The displayable singular label of the relation.
*
* @var string
*/
public $singularLabel;
/**
* The name of the Eloquent "has one through" relationship.
*
* @var string
*/
public $hasOneThroughRelationship;
/**
* The callback use to determine if the HasOne field has already been filled.
*
* @var \Closure
*/
public $filledCallback;
/**
* Create a new field.
*
* @param string $name
* @param string|null $attribute
* @param string|null $resource
* @return void
*/
public function __construct($name, $attribute = null, $resource = null)
{
parent::__construct($name, $attribute);
$resource = $resource ?? ResourceRelationshipGuesser::guessResource($name);
$this->resourceClass = $resource;
$this->resourceName = $resource::uriKey();
$this->hasOneThroughRelationship = $this->attribute;
$this->singularLabel = $resource::singularLabel();
$this->alreadyFilledWhen(function ($request) {
$resource = Nova::resourceForKey($request->viaResource);
if ($resource && $request->viaResourceId) {
$parent = $resource::newModel()->find($request->viaResourceId);
return ! is_null($parent->{$this->attribute});
}
return false;
});
}
/**
* Determine if the field should be displayed for the given request.
*
* @param \Illuminate\Http\Request $request
* @return bool
*/
public function authorize(Request $request)
{
return call_user_func(
[$this->resourceClass, 'authorizedToViewAny'], $request
) && parent::authorize($request);
}
/**
* Resolve the field's value.
*
* @param mixed $resource
* @param string|null $attribute
* @return void
*/
public function resolve($resource, $attribute = null)
{
//
}
/**
* Set the displayable singular label of the resource.
*
* @return $this
*/
public function singularLabel($singularLabel)
{
$this->singularLabel = $singularLabel;
return $this;
}
/**
* Prepare the field for JSON serialization.
*
* @return array
*/
public function jsonSerialize()
{
$request = app(NovaRequest::class);
return array_merge([
'resourceName' => $this->resourceName,
'hasOneThroughRelationship' => $this->hasOneThroughRelationship,
'listable' => true,
'singularLabel' => $this->singularLabel,
'alreadyFilled' => $this->alreadyFilled($request),
], parent::jsonSerialize());
}
/**
* Set the Closure used to determine if the HasOne field has already been filled.
*
* @param \Closure $callback
* @return $this
*/
public function alreadyFilledWhen($callback)
{
$this->filledCallback = $callback;
return $this;
}
/**
* Determine if the HasOne field has alreaady been filled.
*
* @param \Laravel\Nova\Http\Requests\NovaRequest $request
* @return bool
*/
public function alreadyFilled(NovaRequest $request)
{
return call_user_func($this->filledCallback, $request) ?? false;
}
}
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