https://bugzilla.wikimedia.org/show_bug.cgi?id=28790
--- Comment #2 from Matt Voysey 2011-09-05
11:11:48 UTC ---
Hi Yaron, I tried this on a clean install of MediaWiki 1.17.0 with
SemanticBundle 2011-08-24.20110824 (SemanticDrilldown 0.8.3) and the problem
still occurred. So I decided to investigate further...
After some debugging I traced the problem to a difference in the
SDAppliedFilter instance that gets created when using a combo box to enter
filter values versus the standard list of values input type - I was seeing, for
example, "Singer & Songwriter" in the first case, and "Singer & Songwriter"
in the second.
Traced the cause of this to SD_AppliedFilter.php line 21, where the value of
the _search_ parameter gets htmlspecialchars run on it. Removing this call
fixed the problem with ampersands.
In SD_AppliedFilter.php line 21 - change:
$af->search_term = htmlspecialchars( str_replace( '_', ' ', $search_term ) );
to:
$af->search_term = str_replace( '_', ' ', $search_term );
I tested for possible side-effects of the above by creating some other values
for property values with nasty <, >, " characters - it seems they already don't
work very well with the combo box input (particularly for a value like "Artist"
or - just don't appear at all), but other values such as Builder's
Merchant (containing apostrophe) work fine with or without the fix above.
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