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TopicClassificationAddOnDev Discussion: Page for developer collaboration, enhancement requests, patches and improved versions on TopicClassificationAddOn contributed by the TWikiCommunity.
• Please let us know what you think of this extension.
• For support, check the existing questions, or ask a new support question in the Support web!
• Please file bug reports in the TopicClassificationAddOn bug database.

Development Discussions for TopicClassificationAddOn

OK, it's just a glorified set of TWiki topics without a spec of unique code. stick out tongue Still, I have found it quite useful and wish I had something along these lines when I first set-up my TWiki installation. My hope is that it helps jump-start the process of making TWiki something new users can't imagine how they (and their cohorts) lived without before.

I also hope it helps further the development of other TWikiApplications, code or no.

I plan on adding some additional example TopicTypes soon - such as the weblogging application I mentioned in BlogginInTWiki.

In addition to the demo url listed on the main add-on page, you can see a more extentive example on my personal on-line notebook at http://skyloom.com/Lynnwood

-- LynnwoodBrown - 14 Oct 2004

Very nice! Yes, this is something bloggers have for ages and is very useful, if only to get an idea of the scope of the blog.

It would be interesting to see if this can lead to a rudimentary Topic Map. This is a list or map of topics with their relations, that can exist independent of their actual use. A rudimentary version would allow us to define (multiple) relationships between topics: child-of, written-by, based-on, used-with, etc.

-- ArthurClemens - 14 Oct 2004

OK, this is long overdue, but I have finally packaged the files for a BlogForTWiki that I created with TopicClassificationAddOn. You can see it in operation here. I hope folks find this useful, as least as a starting place to design something closer to a full fledged BlogForTWiki.

If you have TopicClassificationAddOn installed (which is required), installing the Weblog "Topic Type" is very simple:

  1. Download the WebLogTopicType.zip archive.
  2. Upload this archive to your TWiki installation and unzip the archive within the directory for the web to which you want to add a blog.
  3. Edit the TopicType topic in that web and add WebLog to the table listing TopicTypes.
  4. Add WebLogForm to the list of enabled WebForms in WebPreferences.
  5. Define two TWikiVariables in TWiki.TWiki.Preferences for formatting right-sidebars. See note below.
  6. Copy the contents of WebLog into WebHome
  7. Bonus feature: Use the JustBlogIt Firefox extension for quick-creation of new weblogs. (See instructions below)

Just for reference, here's the list of files that are included in the WebLogTopicType.zip archive:

  • WebLog - The TopicType topic that list all weblogs and includes ability to filter by
  • WebLogTemplate - The template topic for new Weblogs.
  • WebLogForm - The WebForm that is used with weblogs.
  • LogDate - Explanation of this field in WebLogForm
  • WebLogHeading - An topic included in WebLogTemplate that provides much of the formatting. Edit this topic and you change the look of all the weblog entries.
  • WebLogLinksDirectory - A little feature of my weblog that is not commonly found in weblog applications! cool! It lists all the links referenced in weblog entries, sorted by SubjectArea.

That's it. Enjoy! smile

-- LynnwoodBrown - 13 Jan 2005

I was asked to provide more information about using the JustBlogIt Mozilla/Firebird extension that allows quick creation of new weblogs. I'be been using this in conjunction with the weblog application for TopicClassificationAddOn (see note above) and it really works great.

To use this, first you need to have TopicClassificationAddOn as well as the WebLogTopicType installed. (Again, see note above about this). Furthermore, you need the attached CreateNewWebLog topic which I created specifically for use with the JustBlogIt extension. (I'll include this in the next release of the WebLogTopicType package).

  • Opps! I also just remembered that I modified the WebLogTemplate that's included in the WebLogTopicType package to work with JustBlogIt. Just replace the content of that template topic with this version. -- LynnwoodBrown - 30 Mar 2005
To get the JustBlogIt extension, you can go to its home page, or if you're using a Mozilla/Firefird browser and are ready to install it, just click here to install it.

After you've installed JustBlogIt, configure it as follows:

  1. Select the menu item Tools > Extensions.
  2. Select JustBlogIt extension and click on the "Extension options" button.
  3. The first tab "Weblog 1" will be selected. (Sidenote: one great feature of this plugin is that you can configure up to 5 different weblogs.) Here's my settings:
    • Weblog Name: I use the name site & web where this weblog will post. (Again, you can define up to 5 different ones.)
    • Window size: I use width 900, heigth 800.
    • Select weblog type: pull down menu and select "Custom."
    • In the custom setup, enter the url to your CreateNewWebLog topic along with the url parameters. Mine look something like this:
  4. Click OK to close the extension setup window.

That's it! To use it, go to any web page you'd like to blog and right-click anywhere on the page and select "JustBlogIt." A new window will open containing your CreateNewWebLog topic with the url and page name already entered into the appropriate form fields. Optionally, you can select some text on the page to be blogged prior to invoking JustBlogIt with the right-click and the text will be automatically entered into the "log entry" field. This is very convenient for including a quote from the page in your blog. Remember to add a WikiWord name for your weblog entry and click on the "Blog on!" button. This will take you to the edit view will all the info pre-entered so you should just be able to click on "save."

(One small warning: if the "log entry" field in the CreateNewWebLog topic contains a url that includes a question mark, it messes up the urlparam for this field that is passed to the edit view, which can result in some of your text being dropped. I think there should be a way to fix this using ENCODE variable but I haven't figured it out yet.)

I've probably made this look more complicated than it really is by providing too detailed instructions. It actually takes about 5 minutes to set up and makes creating new weblogs a snap! Happy blogging!

-- LynnwoodBrown - 21 Mar 2005

Wow. That is thoroughly awesome. Your instructions worked first time - I'm now all blogged up on http://cleaver.org/Blog/WebLog smile

Thanks Lynnwood!

-- MartinCleaver - 21 Mar 2005

Quick question: what does "Unfortunately, at present, new SubjectArea topics must be added manually to the table above to be listed in WebForm." mean exactly? Not a problem but I note this wording in the SubjectArea topic.

-- MartinCleaver - 21 Mar 2005

What I was referring to there was the issue discussed in DynamicFormOptionDefinitions. In TopicClassificationAddOn, I could not figure out how to have new SubjectAreas (or new TopicTypes) automatically be included in the drop-down list of options for those fields in the WebForm. Given the capabilities of TWiki at that time, after creating a new SubjectArea, one needed then to return to the master SubjectArea topic and manually edit the table that is referenced by the WebForm topic. (I don't know why this explanation seems so convoluted. If you look at the SubjectArea topic, I think you'll get what I'm talking about.)

I should also mention that there now appears to be some ways around this little inconvenience. ThomasWeigert recently pointed out to me that FormsAddOn provides DynamicFormOptionDefinitions. HandleCommonTagsInFormDef discusses another option, but I don't think this was ever incorporated into the core.

-- LynnwoodBrown - 21 Mar 2005

We ought add an option to make a prominent "RSS feed" link that can be dropped into readers...

  • Can we define a TWiki rss feed based on a subset of topics within a web? This is something I've wanted to find out for a while but haven't gotten around to asking. -- LB - 30 Mar 2005

-- MartinCleaver - 26 Mar 2005

I also reckon a plain bookmark version (one click and that doesn't drop via the edit window) would be compelling.

-- MartinCleaver - 26 Mar 2005

It'd be nice to be able to allow people to comment but not edit - does this mean we'd need ALLOWTOPICCOMMENT ?

-- MartinCleaver - 26 Mar 2005

Regarding allowing commenting but not editing, I thought it might be useful to have separate TOPIC+Discussion topic for comments that only gets created when someone adds the first comment. That would solve the problem you mention.

-- LynnwoodBrown - 30 Mar 2005

I just posted that it didn't work, then read above and added the zip file above, omg! It works!!! This has a LOT of potential with what I am working on twikiblog...thank you

The % and all shows as below, SubjectAreaTemplate and SubjectAreaMaster both have it, what is it supposed to show? Martin's site shows it as well:

%STARTSIDEBAR% Filter by TopicType and stopsidebar as well has the % on each side...

-- BruceRProchnau - 11 Apr 2005

Bruce - I'm delighted that you're checking out my modest efforts here since I see is as quite compatable with the excellent work that you've been doing. I also know I'm not a designer so I welcome your design critique - either with your suggestions for TopicClassificationAddOn or simply in using anything you find useful in your projects. First let me address your question. I thought I had removed all local coding from the pacage but you found an oversight.

I have a variable defined for formating the right sidebars. Here's the variable definition:

  • Set sidebar style:
      * Set STARTSIDEBAR = <div style="float:right;width:30%;border:2px dotted %WEBBGCOLOR%;padding:1em;margin:0.5em;">
      * Set STOPSIDEBAR = </div>

Note: Be sure to place the two "Set" lines within "verbatim" tags. If you view this page in "raw" format (click here), you can copy the five lines starting with "Set sidebar style" directly from this page as it's formatted correctly for inclusion in TWikiPreferences.

I think that that was the problem althought I'm not sure I completely understand what you said above. If there's something else, let me know. Do you have installed on a public site that I can see?

I know there are a couple of other small mistakes in the first package I posted and I've been wanting to revise and update it. One of the changes I want to make is to base parentage on SubjectArea rather than TopicType and incorporate sub-SubjectAreas similiar to what I see you've done.

-- LynnwoodBrown - 11 Apr 2005

I am trying it at http://www.bkdesign.ca/twiki2

As I get time to look it over I see a LOT of potential in what I am trying to do with twiki alone (ie without Movable Type integration).

In the menu I am trying to get the blog entries to list. I haven't gone over this much yet, but am studying it to get it figured out.

Menu: New Weblog Entries

Topics Then it has the code: ---+++ Topics

Number of topics: 0

This is from the page that lists the entries, but here it lists all the pages related to the plugin/addon.

Looks great!

-- BruceRProchnau - 13 Apr 2005

can't get the code to show

-- BruceRProchnau - 13 Apr 2005

I'm sorry Bruce, I don't understand what you're asking. You can't get what code to show?

-- LynnwoodBrown - 13 Apr 2005

sorry I should have edited, the code I was trying to display here. What I am trying to do on the above site with your TopicClassificationAddOn is not only create a weblog, but order topics in the menu by category. I really have to take the time to go through it all. On one of the pages it lists all the topics. When I took that code and put it in the menu list, but it showed more than just the topics. Just working with it, it has a lot of potential for site/topic organization.

-- BruceRProchnau - 13 Apr 2005

Great Bruce! Providing a simple structure for organizing a site's content is exactly what I designed this for and I feel it would a useful additional to nearly every wiki to help folks avoid WikiThickets. wink

And NOW I understand what you were saying about getting the "code to show!" The easiest way to do this is to place the code between verbatim tags. An example is where I displayed the sidebar code above.

-- LynnwoodBrown - 13 Apr 2005

Yes, wiki Thickets is a good term, and is one of the dangers inherent in wiki's. I have even thought of making new webs and pretending they were categories....but this has a lot of potential.

-- BruceRProchnau - 13 Apr 2005

How do I remove the ReferenceTopic TopicType? And, before I remove it, why is it there?

-- JosMaccabiani - 25 Apr 2005

Jos - ReferenceTopic is just a sample TopicType that I included to illustrate a TopicType and (hopefully) thereby help get folks started. I thought ReferenceTopics might be about the most generic TopicType - intended for posting general reference information.

To remove it, just delete the ReferenceTopic and ReferenceTopicTemplate topics and then also delete the reference to ReferenceTopic from the table in the TopicType topic.

-- LynnwoodBrown - 25 Apr 2005

I thought I had listed ReferenceTopic in list of files in TopicClassificationAddOn - but see I didn't. Sorry for confusion that might have caused. I've updated it.

-- LynnwoodBrown - 25 Apr 2005

Hi Lynnwood, deleting the ReferenceTopic works! Few questions/things:

  1. ReferenceTopicTemplate is not supplied in the ZIP file, so should be removed from the table in TopicClassificationAddOn
  2. Maybe it's a good idea to include 'Deleting TopicTypes' and the START/STOPSIDEBAR settings in the docs? If you want I can take a stab at this, though my understanding of TWiki is not yet very extensive.
  3. When I am in a SubjectAreaTopic, and use the filter tools (in the sidebar) to select '!TopicType' 'All', the WebHome is loaded instead. This is reproducable (unfortunately on an intranet wiki)

This AddOn is really useful by the way. What would be really cool is some integration with the ApprovalPlugin.

-- JosMaccabiani - 26 Apr 2005

Jos - thanks so much for helping me clean up this add-on package! Regarding your points:

  1. OK, I've removed ReferenceTopicTemplate from the file list. Do you think I should drop ReferenceTopic sample TopicType all together? Is is helpful or just confusing? Maybe I should just include more examples of TopicTypes in the instructions and leave it up to user to create them. Don't worry about making the changes. I'll do it in next release and in the mean time, hopefully folks will see these notes.
  2. You're right, I should add instructions about deleting TopicTypes AND for adding the Start/Stop sidebar (which you can here).
  3. I tried to replicate your problem with filtering for all on my site and another one where this addon is installed but, unfortunately, I couldn't. The result when you select "All" from the filter drop-down menu should be that the same SubjectArea page is reloaded with no url parameter (no "?type=" tagged onto the end). I have no idea why it would be going to the WebHome instead. Out of curiousity, what kind of operating system is your twiki installed on? It you'd like, you could look at the code that creates that drop-down menu (it's in SubjectAreaMaster) and post it here or compare it to the version on my demo site (click here to just directly to that topic in "raw" view).

This is great! I'd like to pick up some of these little problems before making a new release. Thanks for the encouragement and if you have any more suggestions for improving this add-on, please let me know!

-- LynnwoodBrown - 26 Apr 2005

Hmm... I copied the code from your site, same result. Appears that it's not going to WebHome but to

which defaults to WebHome.

If i change your code to:

<option value='%INCLUDINGTOPIC%'>All</option>

it all works as expected!

  • There you go - Good solution! I'll incorporate it in next release. -- LB

I'm running TWiki on some *nix, sorry but i don't know which one (my privileges on that server are slim - i'm not a sysadmin, just someone with enough time to experiment with TWiki :-))

-- JosMaccabiani - 26 Apr 2005

I may be using this add on in the wrong way, but I don't expect my users to use the TopicType and SubjectArea options, I created other (i.e. Dutch) options for them.

  • I can see what that would make sense - only admin creates TopicTypes and SubjectAreas. I may consider that in next release. -- LB

Is there a way for me to prevent those options (especially SubjectArea) to appear in pull-down menu's etc? Of course, they are not in the tables in the TopicType topic...

  • Edit SubjectArea and set TopicType in WebForm to "Select..." The dropdowns are created by searches. -- LB
    • Hmm... this doesn't seem to work for me. The number of SubjectArea topics is 0 (as indicated by your search) but in the drop-down box (not in WebForm!) the SubjectArea is still there. I can't seem to figure this one out. Any ideas? -- JM
    • I know this can be a bit confusing so bear with me. First, we're not concerned with how many SubjectArea topics are defined, but only with how THE MAIN SubjectArea topic itself is classified. The SubjectArea topic itself is a TopicType (it's one of the possible topic types). SO, find the topic called SubjectArea, edit it, and in the WebForm change the TopicType formfield from "TopicType" to "Select..." That should remove SubjectArea from all drop-down menus for TopicType. -- LB
    • Yep, that does the trick! thanks. -- JM

-- JosMaccabiani - 26 Apr 2005

It would be wonderful if this addon could support FacetedNavigation.

-- ArthurClemens - 06 Jun 2005

Intriguing! I'll have to study FacetedNavigation a bit more to wrap my head around the implications for TopicClassificationAddOn. However, from a quick look at BrowseFacets feature on DiamondWiki, I think I can duplicate this feature. More on that later...

-- LynnwoodBrown - 06 Jun 2005

You also might want to look at How to Make a Faceted Classification and Put It On the Web. There is a piece on XFML (http://xfml.org/) - not sure if this can be of use.

-- ArthurClemens - 10 Jun 2005

Lynnwood, could you put the blogging instructions on a separate page? I gets kind of lost now.

  • Yes - I'd be glad to. Give me a few days. - LB - 18 Jul 2005

-- ArthurClemens - 18 Jul 2005

Moved question from KeithHelfrich regarding the searches in TopicClassificationAddOn over to HowToSearchForTopicNameInFormField since the support web is really the place for this kind of trouble shooting.

-- LynnwoodBrown - 19 Jul 2005

checked .zip into CVS

-- WillNorris - 21 Jul 2005

Someone contacted me by email and said that the zip file was corrupted - so I've replaced it (and corrected a couple of small mistakes I found since last posting it). I have a new version ready that's designed for DakarRelease. It won't work with Cairo, but if you're using some version of DEVELOP and you'd like to try the new version of TopicClassificationAddOn, drop me a note and I'll send it to you.

-- LynnwoodBrown - 07 Aug 2005

I think the corruption is related to PluginAddonsCorruptWhenDownloading. Interestingly, I still cannot open the newly attached archive...

Could you send me the exact same Zip file by e-mail so we can see if it's twiki.org related or not? Thanks!

-- JosMaccabiani - 07 Aug 2005

As I wrote in PluginAddonsCorruptWhenDownloading, I can download and extract the zip file just fine. I sent it via e-mail to Jos for testing.

-- PeterThoeny - 07 Aug 2005

Zip file problems follow-up in PluginAddonsCorruptWhenDownloading

-- JosMaccabiani - 08 Aug 2005

Hm, shouldn't there already be a newer release (2.0) available yet? wink

-- FranzJosefSilli - 01 Dec 2006

Yes, yes - long over due. frown I actually have it done but for some documentation and learning to package it up with BuildContrib. Maybe in time for a Christmas present? Thanks for asking.

-- LynnwoodBrown - 01 Dec 2006

Well, I finally did it. I figured out BuildContrib and have packaged the new version of TopicClassificationAddOn. Soon, I'll remove the older discussions above since they really aren't relevant to the new version. The new version does include the simple weblog application.

-- LynnwoodBrown - 22 Feb 2007

Just installed TCAO of 17 Mar 2007 on our prototype Intranet TWiki. 1st of all -- thanks for sharing such a great tool. It fits perfectly our requirements for document classification; before I saw TCAO, I was thinking of developing something like that. A few comments, however

1) Bugfix: creation of new topic type or subject area

Problem: upon creation of new topic type or subject area, should select "Predefined ..." (and not "New..."), otherwise pops up saying enigmatically "Please enter a new for your new TopicType"

Solution: Edit RenderAddClassification as follows

(Rather cosmetic change) in function checkName() replace the alert text

alert("Please enter a new for your new <nop>%BASETOPIC%");
alert("Please select what <nop>%BASETOPIC% to add");

In select tag nameClass add

~~~      <option value="0"> Please select <nop>%TYPE%... </option>
as the first option.

2) Bugfix: wording in new topic type topics

Problem: in templates created for topic types, the new section says [...] of your new TopicType instead of the correct

%STARTSECTION{name="new" type="section"}%
%INCLUDE{"%TCAOWEB%.RenderTopicCreator"  TEMPLATE="%TOPIC%Template" TYPE="%TOPIC%"  FACETS="%FORMFIELD{"Facets"}%" TOPICSUMMARY="Enter a summary of the purpose or function of your new %SPACEOUT{%TOPIC%}%." }%
%ENDSECTION{name="new" type="section"}%

Solution: correct text in TCAO/Installs/TopicTypeTemplate.txt (and all topic types created to date)

3) Typo: "Congradulations" -> "Congratulations"

Fixed in TCAO/Installs/WebLog and TCAO/RenderNewTopicHelp.

4) Bugfix: summary missing from new subject areas

Problem: upon creation of new subject area, summary not taken into account (have to re-fill later)

did not get to fix that one yet

5) Bugfix: TopicTree does not display

Problem: TopicTree fails saying

TWiki detected an internal error - please check your TWiki logs and webserver logs for more information.
Undefined subroutine &TWiki::Plugins::TreePlugin::installWeb called

The bug is with TreePlugin (see TreePluginDev). Any use of imageoutline:thread kills any page.

Affected files: TCAO/Installs/TopicTree.txt TCAO/TopicTree.txt

Workaround: edit TCAO/Installs/TopicTree.txt TCAO/TopicTree.txt to use a different presentation


%TREEVIEW{topic="%URLPARAM{root}%" web="%BASEWEB%" stoplevel="5" formatting="imageoutline:thread"}%
%TREEBROWSER{"file" noroot="true"}%
%TREEVIEW{topic="%URLPARAM{root}%" web="%BASEWEB%" startlevel="1" stoplevel="5" formatting="outline" format="* $topic" levelprefix="   "}%
(requires TreeBrowserPlugin)

-- AlexandreTrofimov - 06 Jul 2007

Alexandre - thanks for the feedback! I'm glad you have found this add-on useful! I've always intended it as a base to build on (or learn from). I'll include your fixes in my next release. I had recently noticed the TreePlugin problem which seems to be related to a bug in that plugin.

-- LynnwoodBrown - 07 Jul 2007

> you have found this add-on useful
Sure I did! Many thank again!

But I come back with a weird glitch I cannot find a true solution for.

CreateNewTopic fails to take into account the "parent" url parameter. It does for the form display, but the actual topic created is a child of the corresponding Topic Type topic (or orphaned for a new "blank topic").

E.g., if I use CreateNewTopic from WebHome page to create a new topic of type NewsItem, the parent of the newly created topic is NewsItem, and not WebHome (as specified in the URL parameter and displayed in topic creation form).

This only happens when I leave the default parent supplied in the URL. If any other one is chosen from a drop-down list, it works ok.

As a quick-and-dirty fix, I have simply replaced the topicparent-related section of RenderTopicCreator by an INCLUDE of the corresponding section from WebTopicCreator. Yours certainly looks much nicer, but I could not get it to work (know nothing about Web programming, wish it was Perl :-).

Any hints or fixes?

Thanks and cheers,

-- AlexandreTrofimov - 09 Jul 2007

More bugs to report:

  1. Pre-defined topic types are not available for adding, unless at least one custom topic type is present
  2. removeSpacesAndPunctiation -> removeSpacesAndPunctuation historical typo bug still present in CreateNewWebLog and RenderAddClassification

Will see if I can provide a fix, else will file a bug report.

Cheers, Alexandre

-- AlexandreTrofimov - 24 Aug 2007

Uploaded new version today that includes fixes to the above problems (I think i got them all).

-- LynnwoodBrown - 01 Oct 2007

The bugfixes listed above appears to not have made it into our very recent download. Wrong package uploaded? Specifically, I have so far seen items 1) & 2) appear for us ...

-- AndersHolm - 05 Dec 2007

Hmmm. that's odd. I will double check it today and reload. Thanks for heads-up!

-- LynnwoodBrown - 05 Dec 2007

I've rechecked the most recent code and it does address the problems listed above. However, I discovered because of changes in 4.2 regarding TWiki's distributed javascript the topic creation forms were broken. I made changes in the relevant topics to bypass these problems so that this add on should work with either 4.1.x or 4.2. I've uploaded the new version.

-- LynnwoodBrown - 05 Dec 2007

I have to add 2 things: 1. take care there is a Bug in the TopicCreatePlugin. A NewlineCharacter is added to the TopicName and the newly created Topics are broken. I now fixed with adding chmop($topicName) for the Variable $topicName in Line 84 (Function.pm) 2. There is a Javascript Bug in the 'TopicClassificationAddon'-Form. When using InternetExplorer, the action is not correctly set and the TopicClassification is always installed to the Main-Web. The bug resides in document.installTCAO.action = "" + theWeb + "/";, which is not a correctly addressed property ... The IE's Jscript interpreter looks at .action as an element name rather than a property ...

-- WolfgangBertl - 08 Dec 2007

I changed the ModificationPolicy of this extension from ContactAuthorFirst to PleaseFeelFreeToModify due to inactivity. Anyone please feel free to work on this extension.

-- PeterThoeny - 2012-12-03

Topic attachments
I Attachment History Action Size Date Who Comment
Texttxt CreateNewWebLog.txt r1 manage 1.5 K 2005-03-21 - 16:18 LynnwoodBrown Allows quick creating of new WebLogs using JustBlogIt
Texttxt WebLogTemplate.txt r1 manage 0.7 K 2005-03-30 - 22:26 LynnwoodBrown Modified WebLogTemplate for use JustBlogIt
Compressed Zip archivezip WebLogTopicType.zip r1 manage 3.3 K 2005-01-13 - 18:46 LynnwoodBrown Weblog set up for TopicClassificationAddOn
Edit | Attach | Watch | Print version | History: r59 < r58 < r57 < r56 < r55 | Backlinks | Raw View | Raw edit | More topic actions
Topic revision: r59 - 2012-12-03 - PeterThoeny
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