Laravel not inserting all data to DB

I am coding a comment section; i am getting user data from the form below:

<div class="comment">
    <h2>Leave a comment</h2>
    <form method="post" action="/blog/{{$post->id}}/comments">
    {{csrf_field()}}

     <input type="text" name= "name" class="textbox" value="Name" onfocus="this.value = '';" onblur="if (this.value == '') {this.value = 'Name';}">
     <input type="text" name="email" class="textbox" value="Email" onfocus="this.value = '';" onblur="if (this.value == '') {this.value = 'Email';}">
     <textarea value="Message:" name="body" onfocus="this.value = '';" onblur="if (this.value == '') {this.value = 'Message';}">Message</textarea>

     <div class="smt1">
        <input type="submit" value="add a comment">
     </div>
   </form>
</div>

I am getting those data on a route via CommentsController store method like below:

Route::post('/blog/{post}/comments','CommentsController@store');

Then storing them on db via controller's method: `

    public function store(Post $post){


    Comment::create([
       'body'    => request('body'),
       'email' =>request('email'),
       'name' =>request('name'),
       'post_id' => $post->id
    ]);


    return back();
}

the issue is that when I go on the database the body field gets inserted totally fine, but post_id, name, email they dont get inserted on databse, they are empty.

I have checked if I am getting the data from the form I have done die; dump dd(); on name, email and $post->id I get the data totally fine from the form, but I can not get them inserted on the database?