20-02-2026

app/Models/Category.php

@@ -2,9 +2,44 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
+use Illuminate\Database\Eloquent\Relations\HasMany;
 
 class Category extends Model
 {
-    //
+    use HasFactory;
+
+    protected $fillable = [
+        'parent_id',
+        'name',
+        'slug',
+        'description',
+    ];
+
+    /**
+     * Übergeordnete Kategorie.
+     */
+    public function parent(): BelongsTo
+    {
+        return $this->belongsTo(self::class, 'parent_id');
+    }
+
+    /**
+     * Untergeordnete Kategorien.
+     */
+    public function children(): HasMany
+    {
+        return $this->hasMany(self::class, 'parent_id');
+    }
+
+    /**
+     * Produkte in dieser Kategorie.
+     */
+    public function products(): BelongsToMany
+    {
+        return $this->belongsToMany(Product::class);
+    }
 }