Fixes after reading excel files and discuss with eric

app/Models/Shop/Unity.php

@@ -9,13 +9,13 @@ class Unity extends Model
 	protected $guarded = ['id']; 
 	protected $table = 'shop_unities';
 
-	public function article_family()
+	public function package()
 	{
-		return $this->belongsTo('App\Models\Shop\ArticleFamily');
+		return $this->belongsTo('App\Models\Shop\Package');
 	}
 
-	public function scopeByFamily($query, $id)
+	public function scopeByPackage($query, $id)
 	{
-		return $query->where('article_family_id');
+		return $query->where('package_id', $id);
 	} 
 }