X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~yarrgweb/git?p=ypp-sc-tools.db-test.git;a=blobdiff_plain;f=yarrg%2Fweb%2Fquery_commod;h=c9b17ae6700b72a0e5ba135a14d95ff381ae3a98;hp=4869e5c50fad00d6222fa0a1ce8e2df110f488a9;hb=00ba9271fd8409f29fcae6ee2af15824810bc939;hpb=890faab73220a817300d53a362464d6a7fc06788

diff --git a/yarrg/web/query_commod b/yarrg/web/query_commod
index 4869e5c..c9b17ae 100644
--- a/yarrg/web/query_commod
+++ b/yarrg/web/query_commod
@@ -52,6 +52,7 @@ my $qa= \%ARGS;
 <h1>Commodity enquiry</h1>
 
 % $prselector->('BuySell');
+% $prselector->('ShowBlank');
 
 %#---------- textbox, user enters route as string ----------
 % if (!$qa->{Dropdowns}) {
@@ -94,11 +95,12 @@ foreach my $bs (split /_/, $ARGS{BuySell}) {
 	my ($ascdesc) = ($bs eq 'buy')
 		? ('DESC')
 		: ('ASC');
-#INNER JOIN 
+	my $joinkind= $ARGS{ShowBlank} eq 'show'
+		? 'LEFT OUTER JOIN' : 'INNER JOIN';
 	my $islands= $dbh->prepare(
 	"SELECT islands.islandid AS islandid, archipelago, islandname,
 			sum(qty) as tqty
-		FROM islands LEFT OUTER JOIN $bs offers
+		FROM islands $joinkind $bs offers
 		ON islands.islandid == offers.islandid AND commodid == ?
 		GROUP BY islands.islandid,
 		ORDER BY archipelago, islandname"