Eloquent update doesn't work in Laravel 6 - laravel

Question

I'm trying to update a field after submitting in the following form:
<form action="{{ route("comments.update") }}" method="post">
#csrf
<input type="hidden" name="commentIDToEdit" id="commentID">
<div class="md-form mb-5">
<i class="fas fa-comment"></i>
<label for="toEditComment"></label>
<textarea name="toEditCommentary" id="toEditComment" cols="3" rows="5" style="resize: none"
class="form-control"></textarea>
</div>
<div class="modal-footer d-flex justify-content-center">
<button type="submit" class="btn btn-default">Modificar</button>
</div>
</form>
I have the CommentsController, where I process the data from the form. Here is the code:
public function updateComment()
{
request()->validate([
"toEditCommentary" => "min:10|max:500"
]);
if (Session::has("username") && getWarningCount(User::whereUsername(session("username"))->value("email")) > 0) {
Caveat::where("commentID", request("commentIDtoEdit"))
->update(["updatedComment" => request("toEditCommentary")]);
} else {
die("No se cumple la condición");
}
if (Comment::where("commentID", request("commentIDToEdit"))->exists()) {
Comment::where("commentID", request("commentIDToEdit"))
->update(["commentary" => request("toEditCommentary")]);
}
return back();
}
Curiosly, the comment is updated in his table, but not the warning. I was thinking in the fillable property in the model, but I don't have it, instead this, I have the following code:
protected $guarded = [];
const UPDATED_AT = null;
const CREATED_AT = null;

Answer 1

Your hidden input is named commentIDToEdit, but in the Controller you fetch the Caveat using request("commentIDtoEdit") (different case).
What you wrote:
Caveat::where("commentID", request("commentIDtoEdit"))
What you should have done: (note the different casing)
Caveat::where("commentID", request("commentIDToEdit"))
This is because in the view, the input name is commentIDToEdit, not commentIDtoEdit.