php - Laravel 5.6 - Using Traits
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Solution:
I think that a better solution will be to make a Model trait, I will explain my self.
trait HasTags {
public function handleTags($tags)
{
$tags = array_filter(explode(", ", $tags))
$tags = array_map(function () {
return Tag::firstOrCreate([
'name' => ucfirst(trim($tag)),
'slug' => str_slug($tag)
]);
}, $tags)
$this->tags()->sync(collect($tags)->pluck('id'))
}
public function tags()
{
return $this->morphMany(Tag::class);
}
}
Model
class Event extends Model
{
use HasTags;
}
Controller
$event = Event::find($id);
if ($request->has('tags')) {
$event->handleTags($request->get('tags'));
}
I Write it very quickly and without testing it but this is the general idea. you can event have more refactoring by using all the array manipulations with collections.
Answer
Solution:
You can make a trait inapp/Http/Traits/TaggableTrait.php
You just need to pass an object instead of the id, so that the function will be independent from the class type.
then your trait will be something like this :
namespace App\Http\Traits;
use App\Tag;
trait TaggableTrait
{
/**
* @param Request $request: data from the request
* @param App\Article | App\Event $object: the model instance have tags synced to
*/
public function handleTags(Request $request, $object)
{
if ($request->has('tags')) {
$tags = $request->get('tags');
if (!empty($tags)) {
// Turn a String into an array E.g. one, two
$tagArray = array_filter(explode(", ", $tags));
// Loop through the tag array that we just created
foreach ($tagArray as $tag) {
Tag::firstOrCreate([
'name' => ucfirst(trim($tag)),
'slug' => str_slug($tag)
]);
}
// Grab the IDs for the tags in the array
$tags = Tag::whereIn('name', $tagArray)->get()->pluck('id');
$object->tags()->sync($tags);
} else {
// If there were no tags, remove them from this model instance
$object->tags()->sync(array());
}
}
}
}
EventController
use App\Http\Traits\TaggableTrait;
class EventController extends Controller
{
use TaggableTrait;
/*** ***** */
public function update(Request $request, $id)
{
/** ***/
$event = Event::findOrFail($id);
handleTags($request, $event);
/*** *** */
}
}
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