Initial Laravel API import

- Complete GGZ Ecademy Laravel backend application
- RESTful API for learning products, members, filters
- Authentication and authorization system
- Database migrations and seeders
- Custom CRUD generator commands
- Email notification system
- Integration with frontend applications

app/Services/FilterService.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace App\Services;
+
+use App\Repositories\Filter;
+
+class FilterService
+{
+    private $filterRepository;
+
+    public function __construct(Filter $filterRepository)
+    {
+        $this->filterRepository = $filterRepository;
+    }
+
+    public function save(array $data)
+    {
+        if (isset($data['id'])) {
+            $filter = $this->filterRepository->findOrFail($data['id']);
+            $filter->update($data);
+        } else {
+            $filter = $this->filterRepository->create($data);
+        }
+
+        return $filter;
+    }
+
+    public function delete($id)
+    {
+        $filter = $this->filterRepository->findOrFail($id);
+        $filter->delete();
+    }
+
+    public function get($id)
+    {
+        return $this->filterRepository->findOrFail($id);
+    }
+
+    public function getAll()
+    {
+        return $this->filterRepository->all();
+    }
+
+    public function with(array $children)
+    {
+        return $this->filterRepository->with($children)->get();
+    }
+
+    public function withCount(array $children)
+    {
+        return $this->filterRepository->withCount($children)->get();
+    }
+
+    public function getOneWith($id, array $children)
+    {
+        return $this->filterRepository->with($children)->findOrFail($id);
+    }
+}