Question

I have this code, what I want to do is to get the primary key lastly inserted into the user table and then put that into the foreign key of the library table. I don’t know how to do it with $request or what to do here?

public function register($request = array()) {
    $data = array(
        'user_name' => $request['username'],
        'password' => $request['password'],
        'email' => ($request['email']) 
    );
    $data1 = array(
        'user_id' => '5',// this is where I have to put the primary key from last table
        'library_name' => $request['lib_name']
    );

    $this->model->insert('user', $data);
    $this->model->insert('library', $data1);
    $this->redirect('uploadSongs.php');
}

Answer 1

You can do like this

public function register($request = array()) {
    $data = array(
        'user_name' => $request['username'],
        'password' => $request['password'],
        'email' => ($request['email']) 
    );

    $this->model->insert('user', $data);
   $user_id = $this->model->select('user', $data); //select user_id from db 
   $data1 = array(
        'user_id' => $user_id ,
        'library_name' => $request['lib_name']
    );



    $this->model->insert('library', $data1);
    $this->redirect('uploadSongs.php');
}