Codeigniter模型多重连接语句返回最后一条语句

Question

I have a join statement which joins HomeID and AwayID from a team table that has TeamID. When I join the two tables it only returns the values from the last join statement. Here is my model :-

function get_fixtures(){
    $where=array(
    'gameweek'=>1,
    );

    $this->db->select();
    $this->db->from('matches AS M');
    $this->db->join('team AS T2', 'T2.teamID=M.awayClubID' );
    $this->db->join('team AS T1', 'T1.teamID=M.homeClubID');
    $this->db->where($where);
    $query = $this->db->get();
    return $query->result_array();
}

When I print out the result it only returns T1 results. If anyone can help will appreciate :-)

Answer 1

You cant return the result array directly

 $this->db->select();
            $this->db->from('matches M');
            $this->db->join('team T2', 'T2.teamID=M.awayClubID' );
            $this->db->join('team T1', 'T1.teamID=M.homeClubID');
            $this->db->where($where);
            $query = $this->db->get();

            foreach($query->result_array() as $que)
            {
                  $n[] = $que;
            }
            retunr $n;

Answer 2

You are using 2 aliases for the same table. Hence don't use alias for team table.

$this->db->select('*');
$this->db->from('matches AS M');
$this->db->join('team', 'team.teamID=M.awayClubID', 'inner');
$this->db->join('team', 'team.teamID=M.homeClubID', 'inner');
$this->db->where($where);
$query = $this->db->get();
return $query->result_array();

OR only use it for the second time (temp solution).

$this->db->select('*');
$this->db->from('matches AS M');
$this->db->join('team', 'team.teamID=M.awayClubID', 'inner');
$this->db->join('team as t', 't.teamID=M.homeClubID', 'inner');
$this->db->where($where);
$query = $this->db->get();
return $query->result_array();

EDIT:

$this->db->select('*');
$this->db->from('matches AS M');
$this->db->join('team as T', 'T.teamID=M.awayClubID OR T.teamID=M.homeClubID', 'inner');
$this->db->where($where);
$query = $this->db->get();
return $query->result_array();

Answer 3

Thanks guys,i have figure it out myself by distinguishing the columns in the select statement.Here is the code :-

function get_fixtures(){
                $where=array(
                'gameweek'=>1,
                );
                $this->db->select('m.*, T1.clubName T1name,T2.clubName T2name');
                $this->db->from('matches as m');
                $this->db->join('team AS T1', 'T1.teamID=M.homeClubID', 'left');
               $this->db->join('team AS T2', 'T2.teamID=M.awayClubID', 'left');


                $this->db->where($where);
                $query = $this->db->get();
                return $query->result_array();

     }