codeigniter transact将数据添加到两个表中

Question

hi i have a problem about adding data into two tables, heres the situation, i want to add a student with his username and password in users table and his personal info like name and age into users_profiles,, heres my code:

function add_user($username,$password,$fname,$lname,$sex,$address,$city,$country,$role) { $this->db->trans_start();

    $user = array(
    'usrName'=>$username,
    'usrPassword'=>sha1($password),
    'roleID'=>$role
    );

    $this->db->insert('users', $user);

    $this->db->query('SELECT usrID FROM users WHERE usrName=$username');

    $usrID = $this->db->get(); //i know this is wrong thats why i need help

    $user_profile = array(
    'usrpFirstName'=>$fname,
    'usrpLastName'=>$lname,
    'usrpSex'=>$sex,
    'usrpAddress'=>$address,
    'usrpCity'=>$city,
    'usrpState'=>$country,
    'usrID'=>**$usrID** // this is the foreign key from users table
    );

    $this->db->insert('users_profiles', $user_profile);

    $this->db->trans_complete();
}

Answer 1

You do not need to use get() when you use the query() method. Instead store the result from the query() method and use result() or row() to access the data.

So your code should be something like:

$result = $this->db->query("SELECT usrID FROM users WHERE usrName=$username");

$row = $result->row();

$user_profile = array(
  'usrpFirstName'=>$fname,
  'usrpLastName'=>$lname,
  'usrpSex'=>$sex,
  'usrpAddress'=>$address,
  'usrpCity'=>$city,
  'usrpState'=>$country,
  'usrID'=>$row->usrID
);