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<?php
namespace Laravel\Nova\Fields;
use Illuminate\Http\Request;
use Illuminate\Support\Collection;
use Laravel\Nova\Contracts\ListableField;
use Laravel\Nova\Contracts\Resolvable;
use Laravel\Nova\Http\Requests\NovaRequest;
class FieldCollection extends Collection
{
/**
* Find a given field by its attribute.
*
* @param string $attribute
* @param mixed $default
* @return \Laravel\Nova\Fields\Field|null
*/
public function findFieldByAttribute($attribute, $default = null)
{
return $this->first(function ($field) use ($attribute) {
return isset($field->attribute) &&
$field->attribute == $attribute;
}, $default);
}
/**
* Filter elements should be displayed for the given request.
*
* @param \Illuminate\Http\Request $request
* @return \Laravel\Nova\Fields\FieldCollection
*/
public function authorized(Request $request)
{
return $this->filter(function ($field) use ($request) {
return $field->authorize($request);
})->values();
}
/**
* Filter elements should be displayed for the given request.
*
* @param mixed $resource
* @return \Laravel\Nova\Fields\FieldCollection
*/
public function resolve($resource)
{
return $this->each(function ($field) use ($resource) {
if ($field instanceof Resolvable) {
$field->resolve($resource);
}
});
}
/**
* Resolve value of fields for display.
*
* @param mixed $resource
* @return \Laravel\Nova\Fields\FieldCollection
*/
public function resolveForDisplay($resource)
{
return $this->each(function ($field) use ($resource) {
if ($field instanceof Resolvable) {
$field->resolveForDisplay($resource);
}
});
}
/**
* Filter fields for showing on detail.
*
* @param \Laravel\Nova\Http\Requests\NovaRequest $request
* @param mixed $resource
* @return \Laravel\Nova\Fields\FieldCollection
*/
public function filterForDetail(NovaRequest $request, $resource)
{
return $this->filter(function ($field) use ($resource, $request) {
return $field->isShownOnDetail($request, $resource);
})->values();
}
/**
* Filter fields for showing on index.
*
* @param \Laravel\Nova\Http\Requests\NovaRequest $request
* @param mixed $resource
* @return \Laravel\Nova\Fields\FieldCollection
*/
public function filterForIndex(NovaRequest $request, $resource)
{
return $this->filter(function ($field) use ($resource, $request) {
return $field->isShownOnIndex($request, $resource);
})->values();
}
/**
* Reject if the field is readonly.
*
* @param \Laravel\Nova\Http\Requests\NovaRequest $request
* @return \Laravel\Nova\Fields\FieldCollection
*/
public function withoutReadonly(NovaRequest $request)
{
return $this->reject(function ($field) use ($request) {
return $field->isReadonly($request);
});
}
/**
* Reject fields which use their own index listings.
*
* @return \Laravel\Nova\Fields\FieldCollection
*/
public function withoutListableFields()
{
return $this->reject(function ($field) {
return $field instanceof ListableField;
});
}
/**
* Filter the fields to only many-to-many relationships.
*
* @return \Laravel\Nova\Fields\FieldCollection
*/
public function filterForManyToManyRelations()
{
return $this->filter(function ($field) {
return $field instanceof BelongsToMany || $field instanceof MorphToMany;
});
}
}
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