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TWiki.TWikiCategoryTabler1.1 - 21 Apr 2000 - 20:47 - PeterThoenytopic end

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It is possible to add a category table to a TWiki web. This permits storing and searching for more structured information. Editing a topic shows a HTML form with the usual text area and a table with selectors, checkboxes, radio buttons and text fields. The category table is shown at the end of a topic. The format of the category table can be defined per TWiki web.

If you want to use a Category Table in a TWiki web you need to have the following three files in the twiki/templates/{Yourweb} directory:

  • twikicatitems.tmpl : Defines the items in the table
  • twikicatedit.tmpl : Defines the look of the table when editing a topic
  • twikicatview.tmpl : Defines the look of the table when viewing a topic

Format of category definition template twikicatitems.tmpl

Valid lines:

# comments start with a # character


  {name}             name of tag
  {selSize}          vertical size of SELECT tag
  {val1}|{val2}...   values
  {checkFlag}        set to true for [Set] [Clear] buttons, else set to false
  {itemsPerLine}     input items per line before wrap around, 0 if no wrap around
  {charSize}         number of characters for text fields

Remark: Line radio|UseCategory|0|Yes|No has a special meaning. If present, it is possible to choose in "edit" if the category table is included in the topic or not

Example file:

radio|UseCategory|0|Yes|No, delete this category table
select|TopicClassification|1|Select one...|NoDisclosure|PublicSupported|PublicFAQ

Format of twikicatedit.tmpl and twikicatview.tmpl

Use the example below and customize if needed. twikicatedit.tmpl and twikicatview.tmpl can be identical, but they do not have to be.

Attention: <!--TWikiCat--> is needed at the beginning and end as markers. Do not delete them!


<!--TWikiCat--> <h4> TWikiCategory </h4>
<table border="2" cellspacing="1" cellpadding="1">
<td valign="top" align="right"> %CATNAME%:  <br>%CATMODIFIER%</td><td>  %CATVALUE% </td>

Above template files will result in the following category table when viewing a topic:



Above template files will result in the following table when editing a topic:


UseCategory :
Yes    No, delete this category table   
TopicClassification :
OperatingSystem :
OsSolaris    OsSunOS    OsHPUX    OsWin   
OsVersion :

Note: It is possible to force the values of a category table when creating a new topic. This is useful to create new topics using a form for the topic name. The default values of the category table can be specified as hidden fields if needed, i.e. <input type="hidden" name="someCategory" value="someValue">

Example (edit this page to see the source) :

  • New PublicFAQ? topic:

-- PeterThoeny - 21 Apr 2000

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