data getting inserted twice in database - Codeigniter - php

Question

So I've spent hours on trying to fix this one. every time I upload a file. all the data/id3 tags are being inserted twice on my database. before it was working properly now it has this bug and I badly need some help now.
In my controller I am executing update at the same time since I want also to update the data inserted into database with the details from the id3 tags.
Controller
public function save()
{
$id = $this->session->userdata('user_id');
$status = $this->input->post('status');
$original_file = $this->input->post('original_file');
$revised_file = $this->input->post('revised_file');
$song_data = array(
'user_id' => $id,
'song_info_status' => $status,
'song_info_file_name' => $original_file,
'song_info_revised_file_name' => $revised_file,
'song_info_date_added' => 'now()',
'song_info_date_updated' => 'now()'
);
$song_info_id = $this->song_info_model->save($song_data);
$composer_data = array(
'composer_name' => ''
);
$composer_id = $this->composer_model->save($composer_data);
$song_composer_data = array(
'song_info_id' => $song_info_id,
'composer_id' => $composer_id
);
$this->song_composer_model->save($song_composer_data);
$status_data = array(
'song_info_id' => $song_info_id
);
$status_id = $this->status_model->save($status_data);
$tags_info = array();
$tags_info = $this->getTagsInfo(FCPATH ."temp" . "/" .$revised_file);
if(isset($tags_info['Author']))
{
// echo iconv("UTF-8","EUC-JP", $tags_info['Author']);
//echo $str = mb_convert_encoding($tags_info['Author'], "UTF-8", "auto");
$status_data = array(
'status_artist_name' => $tags_info['Author']
);
$this->status_model->update($status_data, $status_id);
}
if(isset($tags_info['Title']))
{
$song_data = array(
'song_info_original_title' => $tags_info['Title']
);
$this->song_info_model->update($song_data, $song_info_id);
}
rename($this->source.$revised_file, $this->destination.$revised_file);
}
In my model I am just getting the data I have from my controller. there's no loop or anything and I really can't find the culprit.
Model
public function save($data)
{
$this->db->insert('song_info', $data);
return $this->db->insert_id();
}
public function update($data, $id)
{
$this->db->where('song_info_id', $id);
$this->db->update('song_info', $data);
}