gallery support

app/Traits/HasGallery.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace App\Traits;
+
+use App\Models\Media;
+use Illuminate\Database\Eloquent\Relations\MorphMany;
+
+trait HasGallery
+{
+    /**
+     * Boot function from Laravel.
+     *
+     * @return void
+     */
+    protected static function bootHasGallery(): void
+    {
+        static::deleting(function ($model) {
+            $model->gallery()->delete();
+        });
+    }
+
+    /**
+     * Add multiple gallery items to the model.
+     *
+     * @param array|string $ids             The media ids to add.
+     * @param string       $delimiter       The split delimiter if $ids is a string.
+     * @param boolean      $allowDuplicates Whether to allow duplicate media IDs or not.
+     * @return void
+     */
+    public function galleryAddMany(array|string $ids, string $delimiter = ',', bool $allowDuplicates = false): void
+    {
+        if (is_array($ids) === false) {
+            $ids = explode($delimiter, $ids);
+        }
+
+        $ids = array_map('trim', $ids);
+        $existingIds = $this->gallery()->pluck('media_id')->toArray();
+
+        $galleryItems = [];
+        foreach ($ids as $id) {
+            if ($allowDuplicates === false && in_array($id, $existingIds) === true) {
+                continue;
+            }
+
+            $media = Media::find($id);
+            if ($media !== null) {
+                $galleryItems[] = ['media_id' => $id];
+            }
+        }
+
+        $this->gallery()->createMany($galleryItems);
+    }
+
+    /**
+     * Get the article's gallery.
+     *
+     * @return Illuminate\Database\Eloquent\Relations\MorphMany The gallery items
+     */
+    public function gallery(): MorphMany
+    {
+        return $this->morphMany(\App\Models\Gallery::class, 'addendum');
+    }
+}