Detect if attach or detach Laravel

A.khalifa

I have project and user table, i want to update attached user in project so i want to attach more or remove user to project

My code look like this

 public function update(Request $request, $id)
    {
     $project = Project::find($id);
                $project->update($request->all());
                if ($project->users()->where('users.id',$request->input('user_id'))->count() == 0){
                    $project->users()->attach($request->input('user_id'));
                }

                else if($project->users()->where('users.id',$request->input('user_id'))->count() != 0){
                    $project->users()->detach($request->input('user_id'));
                }
                return response()->json($project);
}

This code not work correctly when add else if for detach user that want, so anyone help me to resolve this issue and thanks

Sandeesh

I could finally figure out what you need based on the discussion in the chat.

public function update(Request $request, $id)
{
    $project = Project::find($id);

    $project->update($request->except('user_id'));

    $project->users()->sync($request->input('user_id'));

    return response()->json($project);
}

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