Initial commit

app/Http/Livewire/PostForm.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace App\Http\Livewire;
+
+use App\Models\Post;
+use Illuminate\Contracts\View\View;
+use Illuminate\Http\RedirectResponse;
+use Illuminate\Routing\Redirector;
+use Livewire\Attributes\Rule;
+use Livewire\Component;
+
+class PostForm extends Component
+{
+    public ?Post $post = null;
+    #[Rule('required|min:3')]
+    public string $title = '';
+    #[Rule('required|min:10')]
+    public string $body = '';
+
+    public function mount(Post $post): void
+    {
+        if ($post->exists) {
+            $this->post = $post;
+            $this->title = $post->title;
+            $this->body = $post->body;
+        }
+    }
+
+    public function submitForm(): Redirector|RedirectResponse
+    {
+        $this->validate();
+
+        if (empty($this->post)) {
+            Post::create($this->only('title', 'body'));
+        } else {
+            $this->post->update($this->only('title', 'body'));
+        }
+
+        session()->flash('message', 'Post successfully saved!');
+
+        return redirect()->route('posts.index');
+    }
+
+    public function render(): View
+    {
+        return view('livewire.post-form');
+    }
+}