<h1>Commodity enquiry</h1>
% $prselector->('BuySell');
+% $prselector->('ShowBlank');
%#---------- textbox, user enters route as string ----------
% if (!$qa->{Dropdowns}) {
#---------- actually compute the results and print them ----------
+my $onloads= "";
+
foreach my $bs (split /_/, $ARGS{BuySell}) {
$bs =~ m/^(buy|sell)$/ or die;
$bs= $1;
+ my ($ascdesc) = ($bs eq 'buy')
+ ? ('DESC')
+ : ('ASC');
+ my $joinkind= $ARGS{ShowBlank} ? 'LEFT OUTER JOIN' : 'INNER JOIN';
+ my $islands= $dbh->prepare(
+ "SELECT islands.islandid AS islandid, archipelago, islandname,
+ sum(qty) as tqty
+ FROM islands $joinkind $bs offers
+ ON islands.islandid == offers.islandid AND commodid == ?
+ GROUP BY islands.islandid,
+ ORDER BY archipelago, islandname"
+ );
- my $sth= $dbh->prepare(
- "SELECT archipelago, islandname, stallname, price, qty
- FROM $bs NATURAL JOIN stalls NATURAL JOIN islands
- WHERE commodid = ?"
+ my $offers= $dbh->prepare(
+ "SELECT stallname, price, qty
+ FROM $bs NATURAL JOIN stalls
+ WHERE commodid = ? AND islandid = ?
+ ORDER BY price $ascdesc"
);
# fixme this query is utterly wrong
- $sth->execute($commodid);
-
</%perl>
<h2>Offers to <% uc $bs |h %> <% $commodname |h %></h2>
-<table>
+<table id="<% $bs %>_table">
<tr>
+<th colspan=3>
+<th colspan=2>Prices
+<th colspan=3>Quantity at price
+<tr id="<% $bs %>_table_thr">
<th>Archipelago
<th>Island
-<th>Best stall
-<th>Best price
-<th>Qty at best
+<th>Stall(s)
+<th>Best
+<th>Median
+<th>Best
+<th>+/-10%
+<th>Any
</tr>
-% my $row;
-% while ($row=$sth->fetchrow_hashref) {
-<tr> <td><% $row->{'archipelago'} %>
- <td><% $row->{'islandname'} %>
- <td><% $row->{'stallname'} %>
- <td><% $row->{'price'} %>
- <td><% $row->{'qty'} %>
+% $islands->execute($commodid);
+% my $island;
+% my %ts_sortkeys;
+% while ($island= $islands->fetchrow_hashref) {
+% my $islandid= $island->{'islandid'};
+% $offers->execute($commodid, $islandid);
+% my ($offer, $bestprice, $marginal, @beststalls);
+% my $tqty= $island->{'tqty'};
+% my $cqty= '';
+% my $bestqty= '';
+% my $approxqty= '';
+% my $median= '-';
+% while ($offer= $offers->fetchrow_hashref) {
+% my $price= $offer->{'price'};
+% my $qty= $offer->{'qty'};
+% length $bestqty or $bestprice= $price;
+% if ($price == $bestprice) {
+% $bestqty += $qty;
+% push @beststalls, $offer->{'stallname'};
+% }
+% $cqty += $qty;
+% if ($cqty*2 >= $tqty && $median eq '-') {
+% $median= $price;
+% }
+% if ($bestprice*9 <= $price*10 and
+% $price*10 <= $bestprice*11) {
+% $approxqty += $qty;
+% }
+% }
+% my $stallname;
+%
+% my $rowid= "id_${bs}_$islandid";
+% my $s= [ ];
+%
+% $s->[2]= sprintf "%06d", scalar @beststalls;
+% if (!@beststalls) {
+% $stallname= '-';
+% } elsif (@beststalls==1) {
+% $stallname= $beststalls[0];
+% $s->[2] .= " $stallname";
+% } else {
+% $stallname= sprintf "%d offers", scalar @beststalls;
+% }
+%
+% $cqty == $tqty or die "$bs $cqty $tqty $commodid $islandid ";
+<tr id=<% $rowid %> >
+ <td><% $s->[0]= $island->{'archipelago'} |h %>
+ <td><% $s->[1]= $island->{'islandname'} |h %>
+ <td><% $stallname |h %>
+ <td><% $s->[3]= (length $bestqty ? $bestprice : '-') %>
+ <td><% $s->[4]= $median %>
+ <td><% $s->[5]= $bestqty %>
+ <td><% $s->[6]= $approxqty %>
+ <td><% $s->[7]= $cqty %>
</tr>
+% for my $cix (0..$#$s) {
+% $ts_sortkeys{$cix}{$rowid}= $s->[$cix];
+% }
% }
</table>
+<& tabsort, table => "${bs}_table", sortkeys => "${bs}_sortkeys",
+ throw => "${bs}_table_thr", cols => [
+ {}, {},
+ { DoReverse => 1 },
+ { DoReverse => 1, Numeric => 1, MapFn => "ts_Pricemap_${bs}" },
+ { DoReverse => 1, Numeric => 1, MapFn => "ts_Pricemap_${bs}" },
+ { DoReverse => 1, Numeric => 1 },
+ { DoReverse => 1, Numeric => 1 },
+ { DoReverse => 1, Numeric => 1 },
+ ] &>
+<&| script &>
+ <% $bs %>_sortkeys= <% to_json_protecttags(\%ts_sortkeys) %>;
+ function ts_Pricemap_<% $bs %>(price) {
+ if (price=='-') { return <% $bs eq 'buy' ? '-1' : '99999999' %>; }
+ return price;
+ }
+</&>
+% $onloads .= " ts_onload__${bs}_table();\n";
+
<%perl>
}
</%perl>
+
+<&| script &>
+ function all_onload() {
+<% $onloads %>
+ }
+ window.onload= all_onload;
+</&>