Question

I’am trying to join two tables. Lets say t1 and t2. t1 has fk t2_id. but when I run the code nothing is shown in my view.

Controller:

 //..
 $data['city']= $this->state_model->name();
 $this->load->view('viewt', $data);

Model:

    function name(){
    $this->db->select('*');
    $this->db->from('state');
    $this->db->join('city', 'city.state_id = state.id');
    $sql = $this->db->get();

    if ($sql->num_rows () >0) {
        foreach($sql->result() as $row) {
        $this->db->where('state_id','state.id');
        $r = $this->db->get('city');
        }

    return $r->result();

     }
     else {
     return null;   
            }

View:

 <?php foreach($city as $row):?>
  <?php echo $row->cityname; ?></br></br></br>
  <?php endforeach;?></br></br>

Thanks in advance

The Queries:

  SELECT `id`, `statename`
  FROM (`state`)
  ORDER BY `id` ASC

  SELECT *
FROM (`state`)
JOIN `city` ON `city`.`state_id` = `state`.`id`  

  SELECT *
  FROM (`city`)
  WHERE `state_id` = 'state.id'  

  SELECT *
  FROM (`city`)
  WHERE `state_id` = 'state.id'  

  SELECT *
  FROM (`city`)
  WHERE `state_id` = 'state.id'  

Answer 1

Your $r variable will only have the last iteration thus the function will only return the last result set, so try this:

if ($sql->num_rows () >0) {
    foreach($sql->result() as $row) {
    $this->db->where('state_id',$row->state_id);
    $r[] = $this->db->get('city')->row();
    }

return $r;