Question

I am having a problem where the editTablePlugin and publishWebPlugin get into a race condition. When you click save on the editTable, the server side will go into a spin condition repeatedly executing the following:

It seems that the TWiki::Func::expandCommonVariables causes the afterSaveHandler to run again. I put log statements, and it does not return from that call.

Symptoms: Debug ON for both PublishWebPlugin and EdtiTablePlugin

| 08 Jan 2008 - 18:20 | - PublishWebPlugin: afterSaveHandler( CentennialBBC.ConcessionSchedule )
| 08 Jan 2008 - 18:20 | - PublishWebPlugin: publishTopic( CentennialBBC, ConcessionSchedule )
| 08 Jan 2008 - 18:20 | - PublishWebPlugin: publishTopic readTopicText( CentennialBBC, ConcessionSchedule )
| 08 Jan 2008 - 18:20 | - PublishWebPlugin: publishTopic readTemplate( CentennialBBC, ConcessionSchedule )
| 08 Jan 2008 - 18:20 | - EditTablePlugin::commonTagsHandler( CentennialBBC.ConcessionSchedule )
| 08 Jan 2008 - 18:20 | - PublishWebPlugin: commonTagsHandler( CentennialBBC.ConcessionSchedule )
| 08 Jan 2008 - 18:20 | - EditTablePlugin::commonTagsHandler( CentennialBBC.ConcessionSchedule )
| 08 Jan 2008 - 18:20 | - PublishWebPlugin: afterSaveHandler( CentennialBBC.ConcessionSchedule )

Code snipit with debug log statements shown:

sub publishTopic
{
    my( $theWeb, $theTopic, $text ) = @_;

    writeDebug( "publishTopic( $theWeb, $theTopic )" );
    return unless( $theWeb eq $publishWeb );
    return if( $theTopic =~ /$excludeTopic/ );

    unless( $text ) {
        $text = TWiki::Func::readTopicText( $theWeb, $theTopic );
    }
    writeDebug( "publishTopic readTopicText( $theWeb, $theTopic )" ); #RB
    $text =~ s/%META:[A-Z0-9]+\{[^\n\r]+[\n\r]*//gs;
    $text =~ s/.*?%STARTPUBLISH%//s;
    $text =~ s/%STOPPUBLISH%.*//s;

    my $tmpl = TWiki::Func::readTemplate( "view", $publishSkin );
    writeDebug( "publishTopic readTemplate( $theWeb, $theTopic )" ); #RB
    $tmpl =~ s/%META\{.*?\}%[\n\r]*//gs;
    $tmpl =~ s/%TEXT%/$text/;

    my $saveWeb   = $web;    $web   = $theWeb;
    my $saveTopic = $topic;  $topic = $theTopic;
    $tmpl = TWiki::Func::expandCommonVariables( $tmpl, $topic, $web );
    writeDebug( "publishTopic expandCommonVariables( $theWeb, $theTopic )" ); #RB

It does not return from the expandCommonVariables call.

Environment

-- RichardBeaver - 09 Jan 2008

Answer

If you answer a question - or have a question you asked answered by someone - please remember to edit the page and set the status to answered. The status is in a drop-down list below the edit box.

I have not tried to use the EditTablePlugin with the PublishWebPlugin. Why would you want to? A published page is for reading only.

-- PeterThoeny - 09 Jan 2008

I guess that my question does sound a little strange. Here is what I was trying to do:

• I have a TWiki setup where different high school booster clubs around my town can place their web sites (normally maybe a dozen or so pages) - for free.
• The booster clubs are frequently run by moms who can be easily intimidated by computers :-), so I tried to make it very easy for them to edit their information -- hence the use of editTable
• The web site started getting quite a lot of hits so I decided to install publishweb plugin to virtually eliminate my cpu usage (I am on a cheap hosting plan that clocks cpu usage in a 60 second rolling window).
• It works great. When they edit a page (using the TWiki side of the web site) it stores the static page at a more public location (which is actually pointed to by the school district web site).
• Then the problem with edittable/publish web surfaced. It gets stuck in a loop and my web site gets temporarily suspended due to too much cpu usage.

-- RichardBeaver - 10 Jan 2008

For this type of work you might want to look into different Extensions:chaching, such as the PublicCacheAddOn. The PublishWebPlugin is specifically designed to easily maintain a static website in a wiki, e.g. not to cache wiki content.

-- PeterThoeny - 02 Mar 2008