first commit

app/Controllers/Instruments.php

@@ -0,0 +1,79 @@
+<?php
+
+namespace App\Controllers;
+
+use App\Models\InstrumentModel;
+
+class Instruments extends BaseController
+{
+    private function model(): InstrumentModel
+    {
+        return model(InstrumentModel::class);
+    }
+
+    public function index()
+    {
+        return view('instruments/index', [
+            'title'       => 'Instrumenty',
+            'instruments' => $this->model()->withStats(),
+        ]);
+    }
+
+    public function new()
+    {
+        return view('instruments/form', [
+            'title'      => 'Nowy instrument',
+            'instrument' => null,
+        ]);
+    }
+
+    public function create()
+    {
+        return $this->persist(null);
+    }
+
+    public function edit($id)
+    {
+        $instrument = $this->model()->find((int) $id);
+        if (! $instrument) {
+            return redirect()->to('/instruments')->with('error', 'Nie znaleziono instrumentu.');
+        }
+
+        return view('instruments/form', [
+            'title'      => 'Edycja instrumentu',
+            'instrument' => $instrument,
+        ]);
+    }
+
+    public function update($id)
+    {
+        return $this->persist((int) $id);
+    }
+
+    public function delete($id)
+    {
+        $id = (int) $id;
+        if ($this->model()->hasChildren($id)) {
+            return redirect()->to('/instruments')
+                ->with('error', 'Nie można usunąć instrumentu z operacjami lub wycenami. Najpierw usuń powiązane wpisy.');
+        }
+        $this->model()->delete($id);
+
+        return redirect()->to('/instruments')->with('success', 'Instrument usunięty.');
+    }
+
+    private function persist(?int $id)
+    {
+        $data = ['name' => trim((string) $this->request->getPost('name'))];
+
+        $model = $this->model();
+        $ok    = $id !== null ? $model->update($id, $data) : $model->insert($data);
+
+        if ($ok === false) {
+            return redirect()->back()->withInput()
+                ->with('error', implode(' ', $model->errors()));
+        }
+
+        return redirect()->to('/instruments')->with('success', 'Zapisano instrument.');
+    }
+}