Having problems with user defined sessions using postgresql as mysession manager

I have written user defined session management library in php using
postgresql as my session repository.  When I let my session timeout on
my browser I get the below errors on my screen.



   Warning: pg_query(): Query failed: ERROR: duplicate key
violates unique constraint "li_session_pkey" in /var/www/html/liberty/includes/session.php
on line 31



Fatal error: Call to undefined function: pg_error() in /var/www/html/liberty/includes/session.php
on line 31



Warning: Unknown(): A session is active. You cannot change the
session module's ini settings at this time. in Unknown on line 0



The problem is in the write function of my library. Here it is:



function pg_session_write($sid, $val) {

    $life = get_cfg_var("session.gc_maxlifetime");

    $exp = time() + $life;

    $selQ = "SELECT sidid FROM li_session

    WHERE sidid = '$sid' AND exptime >". time();

    $selR= pg_query($selQ)or die("It didn't work:". pg_error());

     if(pg_num_rows($selR)) {

        $sesupQ ="UPDATE li_session SET

        exptime = '$exp', vidval = '$val'

        WHERE

        sidid = '$sid' and exptime >". time();

        $sesupR=pg_query($sesupQ) or die("It didn't work:". pg_error());

    } else {

     $sesinQ = "INSERT INTO li_session

    VALUES('$sid', '$val', '$exp')";

    $sesinR= pg_query($sesinQ) or die("It didn't work:".
pg_error());   

    }

}

Re: Having problems with user defined sessions using postgresql

Ok,

1. PHPs postgres lib doesn't have a pg_error() function. You want
pg_last_error().
2. Are you using the sid as li_session's primary key? If so, before
you create a new session with an already existing sid, you will need to
delete the old sid entry before inserting a new one with the same sid.

Richmond Dyes wrote:
> I have written user defined session management library in php using
> postgresql as my session repository. When I let my session timeout on
> my browser I get the below errors on my screen.
>
> *Warning*: pg_query(): Query failed: ERROR: duplicate key violates
> unique constraint "li_session_pkey" in
> */var/www/html/liberty/includes/session.php* on line *31*
>
> *Fatal error*: Call to undefined function: pg_error() in
> */var/www/html/liberty/includes/session.php* on line *31*
>
> *Warning*: Unknown(): A session is active. You cannot change the
> session module's ini settings at this time. in *Unknown* on line *0
>
> The problem is in the write function of my library. Here it is:
>
> function pg_session_write($sid, $val) {
> $life = get_cfg_var("session.gc_maxlifetime");
> $exp = time() + $life;
> $selQ = "SELECT sidid FROM li_session
> WHERE sidid = '$sid' AND exptime >". time();
> $selR= pg_query($selQ)or die("It didn't work:". pg_error());
> if(pg_num_rows($selR)) {
> $sesupQ ="UPDATE li_session SET
> exptime = '$exp', vidval = '$val'
> WHERE
> sidid = '$sid' and exptime >". time();
> $sesupR=pg_query($sesupQ) or die("It didn't work:". pg_error());
> } else {
> $sesinQ = "INSERT INTO li_session
> VALUES('$sid', '$val', '$exp')";
> $sesinR= pg_query($sesinQ) or die("It didn't work:". pg_error());
> }
> }
> *


--
erik jones
software development
emma(r)


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