[TASK] Be able to disable tracking of visitors search inputs

[christophlehmann]

What should be done in the scope of this task?

Tracking of user search input seems enabled by default. This

• floods the tables fe_sessions/tx_solr_last_searches
• starts sessions and thus sends session cookies.

There should ben an easy possibility to disable it.

Offtopic: Search inputs are only tracked, when they provide results.

Current TypoScript

plugin.tx_solr {
  search {
    lastSearches = 0
    lastSearches {
      limit = 10
      // tracking mode "user" or "global"
      mode = user
    }
  }
}

lastSearches = 0 and mode = '' or limit = 0 could be candidates to achieve disabling the tracking. What do you think?

[dkd-kaehm]

Yes, that is good idea.
Would propose mode = disabled to be more self explaining notation.

[christophlehmann]

And change it to be new default?

[dkd-kaehm]

For main in separate commit please.
It would be nice to backport that feature in non-Breaking manner.