codeigniter where not in

1$this->db->select('ae_users.employee_id, ae_users.emp_name, ae_users.emp_name2, ae_users.emp_name3');
2		$this->db->from('ae_users');                
3		$this->db->where_in('ae_users.employee_id',$employee_ids);
4     
5		$query =$this->db->get();
6             
7		if ($query->num_rows()) {
8			return $query->result_array();
9		} else {
10			return 0;
11		}

1$names = array('Frank', 'Todd', 'James');
2$this->db->where_not_in('username', $names);
3// Produces: WHERE username NOT IN ('Frank', 'Todd', 'James')
4

1$this->db->like('title', 'match'); $this->db->or_like('body', $match);
2// WHERE `title` LIKE '%match%' ESCAPE '!' OR  `body` LIKE '%match%' ESCAPE '!'
3

1$this->db->select('*')->from('my_table')
2        ->group_start()
3                ->where('a', 'a')
4                ->or_group_start()
5                        ->where('b', 'b')
6                        ->where('c', 'c')
7                ->group_end()
8        ->group_end()
9        ->where('d', 'd')
10->get();
11
12// Generates:
13// SELECT * FROM (`my_table`) WHERE ( `a` = 'a' OR ( `b` = 'b' AND `c` = 'c' ) ) AND `d` = 'd'
14

1$table = "my_table";
2$id = 1;
3$update = ["status"=>"working"];
4//Edit just above /\ if you don't need extra "where" clause
5$query = $this->db->select()
6            ->from($table)
7            ->where('id', $id)
8            ->get_compiled_select();
9$data = $this->db->query("$query FOR UPDATE")->row_array();
10$this->db->where('id', $data['id'])->update($table,$update);