Question

The table is like this

and I want to update DecryptionDate by specify ArchiveID and RecipientID

this is my code

$this->load->database();
$date = date("Y-m-d H:i:s");
$data = array('DecryptionDate' => $date);
$array = array('ArchiveID'=>$archiveID.'','RecipientID'=>$userID.'');
$this->db->where($array);
$this->db->update('log', $data);
if ($this->db->affected_rows() > 0) {
    echo "SUCCESS";
} else {
    echo "FAIL";
}

my problem is I can update the data only when $archiveID is 911 and $userID is test01 but the program fail to update when $archiveID is 911 and $userID is test02

after added echo $this->db->last_query(); I’ve got

UPDATE log SET DecryptionDate = ‘2011-11-16 20:01:39’ WHERE ArchiveID = ‘911’ AND RecipientID = ‘test01’

when ArchiveID is test01 and the update is SUCCESS

and

UPDATE log SET DecryptionDate = ‘2011-11-16 20:03:10’ WHERE ArchiveID = ‘911’ AND RecipientID = ‘test02’

when ArchiveID is test02 and the update is FAIL

I’ve try this

$this->load->database();
$date = date("Y-m-d H:i:s");
$this->db->query('UPDATE log
    SET DecryptionDate = \''.$date.'\'
    WHERE ArchiveID = \''.$archiveID.'\' AND RecipientID = \''.$userID.'\'');
if ($this->db->affected_rows() > 0) {
    echo "SUCCESS";
    return TRUE;
} else {
    echo "FAIL";
    return FALSE;
}

but the result’s still the same

and try check only the RecipientID like this

$this->load->database();
$date = date("Y-m-d H:i:s");
$this->db->query('UPDATE log
    SET DecryptionDate = \''.$date.'\'
    WHERE RecipientID = \''.$userID.'\'');
if ($this->db->affected_rows() > 0) {
    echo "SUCCESS";
    return TRUE;
} else {
    echo "FAIL";
    return FALSE;
}

make the update success with only record that match with the RecipientID but not with duplicate ArchiveID with other record

like this

Finally, I’ve test update with common php file with following code instead of via CI and also result is fail

$date = date("Y-m-d H:i:s");
$strSQL = "UPDATE log SET DecryptionDate = '".$date."' WHERE ArchiveID = '911' AND RecipientID = 'test02' ";
$objQuery = mysql_query($strSQL);
if( mysql_affected_rows($objQuery) != 0 ) 
{ 
    echo (" SUCCESS ");
} else { 

    echo (" FAIL ");
}

so I think this must be database problem

here is the DB structure

and ArchiveID and RecipientID are index

Answer 1

I try export the data from database and truncate it then import the data back, it can help, the problem solved.