public function create_e_matriculas($arraycampos = NULL)
    {
        // bail if the group name already exists
        $existing_e_matriculas = $this->db->get_where($this->tables['e_matriculas'], $arraycampos)->num_rows();


        if($existing_e_matriculas !== 0)
        {
            $this->ion_auth->set_error('e_matriculas_already_exists');
            return FALSE;
        }

        // insert the new group
        $this->db->insert($this->tables['e_matriculas'], $arraycampos);
        $e_matriculas_id = $this->db->insert_id();

        // report success
        $this->set_message('e_matriculas_creation_successful');
        // return the brand new group id
        return $e_matriculas_id;
    }
    public function update_e_matriculas($id, $arraycampos)
    {
        $this->db->update($this->tables['e_matriculas'], $arraycampos, array('id' => $id));

        $this->ion_auth->set_message('barloc_update_successful');

        return TRUE;
    }