[TYPO3-core] RFC: Bug 4470: indexed search pagebrowser shows wrong numbers

[Michael Stucki]

This is a SVN patch request.

Problem:
The Indexed Search plugin usually finds the number of search results by 
counting all results of the database query, and then walking through all of 
them, doing a check if the user is really allowed to display this result.
If he had no access, this match will be subtracted from the result.

(This can be controlled using the "show.forbiddenRecords" property, btw.)

However, the usual scenario is that indexed search counts these results only 
up to the page that is displayed, and then stops. This is reasonable because 
the difference of the result count is usually just a minor one. However, one 
may be surprised why indexed_search shows a different result number at every 
result page.

The rule is: The closer he gets to the last page of the result browser, the 
more precise the counter will be.

Solution:
Add a new property to force exact counting, which simply means that indexed 
search checks permissions for _every_ search record, not only up to the 
current page.

Documentation changes for Indexed Search manual:
Property: exact_count
Type: boolean
Description:
Force permission checking for every record. Otherwise, records are only 
checked up to the current result page. This will cause a slowdown of your 
website search, but the results counter will work precisely therefor.

Branches:
Trunk only

- michael
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