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richardpitt

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Registered: 07/01/04
Posts: 11
Location:49'13'10.32N 122'41'07.83W
While I'm new to hacking Geeklog (and php for that matter) I've been programming and hacking since the days of steam


I have a customer who wanted only events for a particular topic to show up on the topic pages.


This involved setting the event_type list in _CONF from the topic list in the database. I actually coded it so it would add to the config.php list but then set the list to empty. The problem is that I've had to hack admin/event.php


I could have put the code in lib-custom.php but then it would get executed every page load instead of just when someone was going to add/edit an event. Is there some standard way to do these hacks? Or should I suggest that there be a call to some event-lib-custom at the top for those of us who want to hack it?
Code snippit - added just above the first $event_templates = lines in function editevent:

PHP Formatted Code

// customization - richard
$result = DB_query ("SELECT * from {$_TABLES['topics']} WHERE 1 ORDER BY topic") ;
$nrows = DB_numRows ($result) ;
for ($i = 0; $i < $nrows; $i++) {
   $A = DB_fetchArray ($result) ;
   if (($i == 0) && ( empty( $_CONF['event_types'] ))){
   // don't put the comma on the first one or we get a blank line
       $_CONF['event_types'] .= $A['topic'] ;
   } else {
   $_CONF['event_types'] .= ',' . $A['topic'] ;
   }
  }

 


Then I created a phpblock in lib-custom. The only thing I don't like is pushing the $topic info onto _CONF but this seems to be the easiest way to get this variable into the function. Is there a better way? This is done at the top of lib-custom - outside any functions.
PHP Formatted Code
// get topic from URL so we can select
// from lib-common

if( isset( $HTTP_GET_VARS['topic'] ))
{
    $topic = COM_applyFilter( $HTTP_GET_VARS['topic'] );
}
else if( isset( $HTTP_POST_VARS['topic'] ))
{
    $topic = COM_applyFilter( $HTTP_POST_VARS['topic'] );
}
else
{
    $topic = '';
}
$_CONF['topic'] = $topic ;



 


And finally here is the block - copied originally from COM_print_UpcomingEvents with mods


NOTE: the code here is only down to the end of the main SQL area - add the balance of the function from the original in lib-common

PHP Formatted Code


// duplicate of COM_printUpcomingEvents but allows selection by type
function phpblock_printUpcomingEvents( $help='', $title='' )
{
    global $_TABLES, $LANG01, $_CONF, $_USER;


// NOTE: not good - had to add topic to the CONF array :(
$topic = $_CONF['topic'] ;
$query = 'SELECT topic FROM '
        . "{$_TABLES['topics']} "
        . " WHERE tid = '"
        . $topic
        . "' " ;
       
$result = DB_query( $query ) ;
$ITEM = DB_fetchArray($result, true) ;
$event_type = $ITEM[0] ;
           
    $range = $_CONF['upcomingeventsrange'];
    if( $range == 0 )
    {
        $range = 14; // fallback: 14 days                                           }
    $dateonly = $_CONF['dateonly'];                                                 if( empty( $dateonly ))                                                         {
        $dateonly = '%d-%b'; // fallback: day - abbrev. month name
    }
/*    if( empty( $title ))
    {
        $title = DB_getItem( $_TABLES['blocks'], 'title', "name = 'events_block'" );                                                                                }
            we don't need this title - block provides its own - richard
*/


$title = '' ;                                                                   if ( $event_type != '' ) {
$title = "For: " . $event_type ;
}

    $retval = COM_startBlock( $title, $help,
                       COM_getBlockTemplate( 'events_block', 'header' ));

if ( $event_type != '' ) {
// include the event_type in the lookup

    $eventSql = 'SELECT eid,title,url,datestart,dateend,group_id,owner_id,perm_owner,perm_group,perm_members,perm_anon '
        . "FROM {$_TABLES['events']} "
        . "WHERE dateend >= NOW() AND (TO_DAYS(datestart) - TO_DAYS(NOW()) < $range) "
        . "AND event_type = '"
        . "$event_type"
        . "' "
        . 'ORDER BY datestart,timestart';

    $personaleventsql = 'SELECT eid,title,url,datestart,dateend,group_id,owner_id,perm_owner,perm_group,perm_members,perm_anon '
        . "FROM {$_TABLES['personal_events']} "
        . "WHERE uid = {$_USER['uid']} AND dateend >= NOW() AND (TO_DAYS(datestart) - TO_DAYS(NOW()) < $range) "
        . "AND event_type = '"
        . "$event_type"
        . "' "
        . 'ORDER BY datestart, dateend';

} else {
// don't include the event_type in the lookup
    $eventSql = 'SELECT eid,title,url,datestart,dateend,group_id,owner_id,perm_owner,perm_group,perm_members,perm_anon '
        . "FROM {$_TABLES['events']} "
        . "WHERE dateend >= NOW() AND (TO_DAYS(datestart) - TO_DAYS(NOW()) < $range) "
        . 'ORDER BY datestart,timestart';


    $personaleventsql = 'SELECT eid,title,url,datestart,dateend,group_id,owner_id,perm_owner,perm_group,perm_members,perm_anon '
        . "FROM {$_TABLES['personal_events']} "
        . "WHERE uid = {$_USER['uid']} AND dateend >= NOW() AND (TO_DAYS(datestart) - TO_DAYS(NOW()) < $range) "
        . 'ORDER BY datestart, dateend';

}



// followed by all the rest of the code from that block - not copied here in the interests of brevity


 


Hope this is useful to someone - and I'd appreciate feedback on how to do this any easier or at least without hacking admin/event.php (and not hitting the database uselessly every page load as would happen with the hack in lib-custom) and how not to have to stuff things onto one of the main global arrays ($_CONF in this case) to get info from the URL into a function used in a block.


thanks


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