如何使用array_push在PHP / Laravel中通过数据库查询结果在foreach循环中添加键值对以标记返回的每一行？

Question

I have a function which retrieves all comments for a post when a show posts button is clicked. The comments are then displayed using Javascript and what I am looking to do is to add a key value pair to the array which will tell my javascript if the comment owner is the logged in user or not, thus allowing me to then add edit and delete buttons to that user's posts only.

This may or may not be the best way to make this comparison but it's a way I cooked up in my infinite inexperience so I can use javascript to show the comments and allow editing/deletion of the comment. I know I could add a column my_posts to the DB table and keep this empty, then use array_push to add the appropriate value to this field but is the way I've tried here possible?

my function is here:

public function postGetComments(Request $request) {
     $post = $request['postid'];
     $comments = DB::table('comments')
             ->join('users', 'users.id', '=', 'comments.user_id')
             ->select('comments.*', 'users.username')
             ->where('post_id', '=', $post)
             ->orderby('created_at', 'desc')
             ->get()
             ;
     foreach ($comments->get() as $comment) {
                $user = Auth::user();
                if ($user->id == $comment->user_id) {
                    $comment['my_post'] = 'true';
                } else {
                    $comment['my_post'] = 'false';
                }
     }
     return response()->json(['commentsForPost' => $comments]); 
}

I am getting an error as there is a problem with my foreach loop at the end. Without this loop the query retrieves and displays all comments as designed. I'm very new to Laravel (using 5.2) and I'm wondering what I've done wrong while trying to push the key my_post, compare the comments.user_id to the user.id and add the value true/false as appropriate to the array? Thanks!

Answer 1

You have already run the get() method on your $comments query. Change your foreach loop to this

foreach ($comments as $comment) {
                $user = Auth::user();
                if ($user->id == $comment->user_id) {
                    $comment['my_post'] = 'true';
                } else {
                    $comment['my_post'] = 'false';
                }
     }