upload image as optional in laravel 8 - laravel

Question

I want to upload image using laravel 8, and I use following code:
$post = new Post;
$upload_image_name = time().'_'.$req->image_name->getClientOriginalName();
$req->image_name->move('uploads', $upload_image_name);
$post->title = $req->input('title');
$post->image_name = $upload_image_name;
$post->save();
It is working fine, but I got error Call to a member function getClientOriginalName() on null while image is empty.

Answer 1

It's because, suprise, image is empty while image is empty
Add condition to check uploaded image
$post = new Post;
$post->title = $req->input('title');
if($req->image_name)
$upload_image_name = time().'_'.$req->image_name->getClientOriginalName();
$req->image_name->move('uploads', $upload_image_name);
$post->image_name = $upload_image_name;
}
$post->save();
If image is required - add validation in action beginning - but right way for it - make validation in Form Request
$request->validate([
'image_name' => 'required|image',
'title' => 'required|string'
]);
If image is not required - change your migration and make posts.image_name nullable

Answer 2

I use following code but I don't think this is conventional way. Here is the code:
if($req->hasFile('image_name')){
$upload_image_name = time().'_'.$req->image_name->getClientOriginalName();
$req->image_name->move('uploads', $upload_image_name);
}
else
$upload_image_name = "Noimage";
$post = new Post;
$post->title = $req->input('title');
$post->image_name = $upload_image_name;
$post->save();

Answer 3

As I used my last laravel project.
$image = $request->file('thumbnail');
if (isset($image)) {
$imageName = date('y_m_d') . "_" . uniqid().".".$image->getClientOriginalExtension();
if (!Storage::disk('public')->exists('thumbnail')) {
Storage::disk('public')->makeDirectory('thumbnail');
}
$postImage = Image::make($image)->stream();
Storage::disk('public')->put('thumbnail/' . $imageName, $postImage);
} else {
$imageName = "";
}
$post = new Post;
$post->title = $request->title;
$post->image_name = $imageName;
$post->save();
image_name column should be nullable.