first commit

app/Http/Requests/Task/CreateRelationRequest.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace App\Http\Requests\Task;
+
+use App\Enums\TaskRelationType;
+use App\Http\Requests\AuthorizesAfterValidation;
+use App\Models\Task;
+use App\Http\Requests\CattrFormRequest;
+use Illuminate\Validation\Rule;
+
+class CreateRelationRequest extends CattrFormRequest
+{
+    use AuthorizesAfterValidation;
+
+    public function authorizeValidated(): bool
+    {
+        return $this->user()->can('update', Task::find(request('task_id')))
+            && $this->user()->can('update', Task::find(request('related_task_id')));
+    }
+
+    public function _rules(): array
+    {
+        return [
+            'task_id' => [
+                'required',
+                'int',
+                'different:related_task_id',
+                Rule::exists('tasks', 'id'),
+            ],
+            'related_task_id' => [
+                'required',
+                'int',
+                'different:task_id',
+                Rule::exists('tasks', 'id'),
+            ],
+            'relation_type' => ['required', Rule::enum(TaskRelationType::class)],
+        ];
+    }
+}