Item1918: Adding tag mgmt features to TagsPlugin

Adding

• untag
• delete tag
• merge tag
• rename tag

including rest interfaces to call them via ajax.

Doing an initial perltidy. More will follow later...

-- OliverKrueger - 12 Aug 2009

Minor bugfix: flushing / committing changes to the dbms at the end of tagItems(). My (mysql) dbms does not show the data without this.

-- OliverKrueger - 12 Aug 2009

Making the automatic tagging of links to "Categories" and DataForms optional.

-- OliverKrueger - 12 Aug 2009

Does anybody ever used the infos in UserTagStat? Its not that easy to keep uptodate in case of a merge. I would suggest to drop this table. The benefit of this table is minimal: Since a user A can add tag B on topic C only once, most counters are set to 1.

-- OliverKrueger - 16 Aug 2009

Refactoring "tag" rest handler. Breaking backward compatibility a little bit: redirecting only explicit request from now on.

Adding a "user" parameter to allow tags in other user contextes (tags owned by groups).

-- OliverKrueger - 17 Aug 2009

I should release more often. - Implemented the "afterRenameHandler". Added TAGSEARCH. Made TAGCLOUD disableable in order to utilize the TagCloudPlugin. Working on jquery stuff in tagsplugin2 skin (just beginning). PS: I hope, I did not break anything yet.

-- OliverKrueger - 20 Aug 2009

Plan is to implement proper http status codes in case "no tag was actually changed" (deleted, untagged, merged...). I put the jquery frontend stuff into another (not yet published) contrib to keep this plugin clean.

-- OliverKrueger - 30 Aug 2009

Todos:

• integrate UI elements for merge, delete and rename
• integrate UI elements for different tag-ownerships
• sanatize input data / make sql-injection harder
• test sqllite as dbi backend
• make TAGSEARCH smarter: add AND and OR to the query term vocabulary

-- OliverKrueger - 15 Sep 2009