Difference: ManagingTopics (r7 vs. r6)

Managing Topics

Select [Rename/move] when viewing a topic to change its name, delete it or move it Browser-based rename, move, and delete for individual topics

  1. Select target Web if other than existing Web
  2. Fill in new name - defaults to current name
  3. You will be warned if there are locks or if there is a name clash
  4. A list of links to the topic will be listed, by default these links will be updated, click checkbox to prevent this
  5. Press the Rename/Move button, topic will be renamed and links to the topic updated as requested.
    • If any of the referring pages are locked then they will be listed
    • You can correct these later by again pressing Rename/Move

Overview

Referring Topics

Select Rename/move when viewing a topic to change its name, move it to another TWiki web, or delete it:

  1. Select target web if other than the current web - chose Trash to delete a topic
  2. Enter the new topic name - default is current name
    NOTE: You will be warned if there are locks or if there is a name conflict
  3. Select from the list of links to the topic that will be changed those to OMIT from changes (by default, all referring links will be updated)
  4. Click on Rename/Move to rename/remove topic will be renamed and links to the topic updated as requested.
    • If any of the referring pages are locked then they will be listed
    • You can correct these later by again pressing Rename/Move

Referring Topics

Referring topics are found using the the %SEARCH% variable, see the template searchrenameview.tmpl. First, matching topics in the current Web are listed - matches are to topic. Next, all Webs (including the current one) are listed that match web.topic. Because %SEARCH% is used, Webs marked in WebPreferences as NOSEARCHALL will not show up in the search for refernces to the topic being changed.

Changed references are kept are as short as possible, i.e. topic is used in preference to web.topic.

Deleting a Topic

Topics can be deleted by moving them to the Trash Web. Note that topics from all Webs go into this, so there could be name clashes, the user is warned of this and asked to choose a new name. When TWiki support sub-webs, these could be created on demand in the Trash Web, which would avoid this name clash problem.

Deleting a Topic

It is up Deleted topics are moved to the administrator of a TWiki installation to clean the Trash Web periodically e.g. by archiving to tape of CDROM entries older than 6 months. Trash web - NOT physically erased from the server. All webs share Trash - in case of a name conflict with a topic already Trash, the user is alerted and asked to choose a new name.

Clearing the Trash

NOTE: The Trash web should be be cleared periodically, by archiving the contents if required (recommended), then deleting the files from the Trash directory.

Redirecting from an Old Topic

Something You like the following can be use put in TWikiMetaData to place a command in WebTopicViewTemplate and WebTopicNonWikiTemplateto that will show if a topic has moved. moved It does this by searching for the tag %META:TOPICMOVED{...}%. Customize something like this:

%METASEARCH{type="topicmoved" web="TWiki" topic="ManagingTopics" title="This topic used to exist and was moved to: "}%
%<nop>METASEARCH{type="topicmoved" web="%WEB%" topic="%TOPIC%" title="This topic used to exist and was moved to: "}%

Permissions Impact of Topic Access Settings

Permissions affect the rename function in various ways. To rename a topic topic, you need both change and rename permissions. To alter refering refer4ing topics, you need change permission. See TWikiDocumentation#TWiki_Access_Controlfor information on setting up access permissions.

Procedure How Rename/move Works

  • %SEARCH% is used with a special template to show text in topics that requires alteration updating to point to the new topic and/or web name. This includes relavent relevent meta MetaData data
    • User chooses which topics will be altered
  •  and   are honoured - no changes are made to text within these areas 
  • Topic is moved (if locks allow)
  • References are changed (locks and permissions allowing) permitting)
  • Any refering referring topics that can't be changed due to locks are listed - user can try getting change them these references changed at any another time.

Known Limitations

Rename in TWiki is fairly complicated due to the dynamic generation of links. Ideally it would be possible to run the required part of rendering in a way that would allow identification of the text to be changed. Unfortunately, these hooks don't exist in TWiki at present. Instead, %SEARCH% is used with a special template to show the text to be changed. And the selected topics and then altered. Search can show matches that will not be updated e.g. because of case differences. Other mis-matches to actual rendered output are also possible as the approaches are so different. Rename/move in is fairly complicated due to the dynamic generation of links. Ideally, it would be possible to run the required part of rendering in a way that would allow identification of the text to be changed. Unfortunately, these hooks don't exist in TWiki at present. Instead, %SEARCH% is used with a special template to show the text to be changed, and the selected topics are then altered. One drawback is that search can show matches that will not be updated because of case differences. Other mismatches to actual rendered output are also possible as the approaches are so different.

The following shows some limitations of square bracket processing.

[[Old Topic]]  => [[NewTopic][Old Topic]]
[[old topic]]  => [[NewTopic][old topic]]
[[old t opic]] => not changed
[[OldTopic]]   => [[NewTopic]]

 
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