How to change user type when submitting new property?

Frontend property is added in application\controllers\frontend.php, line around 1181, code:
$this->estate_m->save_dynamic($dynamic_data, $insert_id);

After that you can execute your query, something like:
$this->db->where('id', $user->id); $this->db->update('user',array('type' => 'AGENT'));

More details: http://www.codeigniter.com/user_guide/database/active_record.html

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