Laravel 5 它没有保存到数据库但没有错误？

Question

I'm using laravel 5.5 and try to save my blog post's comments to the database. When I tried this, it's not saving to database and not give any error?

(I add a new comment, click send, redirect me same page. But not save comment to database..)

Controller

public function store(Request $request, $post_id)
{
    $this->validate($request, [
        'name' => 'required',
        'email' => 'required',
        'comment' => 'required'
    ]);

    $post = Post::find($post_id);

    $comment = new Comment;
    $comment->name = $request->name;
    $comment->email = $request->email;
    $comment->comment = $request->comment;
    $comment->approved = true;
    $comment->posts()->associate($post);
    $comment->save;

    return redirect()->route('post_slug',$post->slug);
}

Answer 1

If you don't have comment saved and you are redirected to same page, I assume you don't have name , email or comment fields filled in. This is how validation works - if it fails, you will be redirected to previous url, so make sure you are displaying errors from validation to see what's going on.

EDIT

And one more thing - instead of ->save you shuould use ->save() and move associating post at the end so instead of:

$comment->posts()->associate($post);
$comment->save;

you should use:

$comment->save();
$comment->posts()->associate($post);

and probably it's reasonable to use transaction to save those into database.

When you used ->save you actually accessed attribute of model and haven't run model saving.

Answer 2

Laravel Eloquent provides convenient methods for adding new models to relationships, when you using it, with save() method it should look like that:

$comment = new App\Comment([
'name' => $request->name,
'email' => $request->email,
'comment' => $request->comment,
'approved' => true
]);

$post = App\Post::find($post_id);
$post->comments()->save($comment);

Or the proper way is to use create() method which accepts an array of attributes, creates a model, and inserts it into the database. For example:

$post = App\Post::find($post_id);

$comment = $post->comments()->create([
'name' => $request->name,
'email' => $request->email,
'comment' => $request->comment,
'approved' => true
]);

Answer 3

尝试将参数添加到 $fillable