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dpavlin |
1.1 |
#!/usr/bin/perl -w |
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use strict; |
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use DBI; |
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use Data::Dumper; |
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use Date::Parse; |
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print "Content-type: text/html\n\n"; |
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my $from="2002-09-11 20:00:00"; |
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my $to="2002-09-13 00:00:00"; |
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# all vars ending in *_t have utime in them. |
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# |
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my $from_t = str2time($from); |
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my $to_t = str2time($to); |
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my $len_t = $to_t - $from_t; |
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die "interval must be positive and bigger than 1 sec !" if ($len_t < 1); |
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my $debug = 1; |
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my $dbh = DBI->connect("DBI:Pg:dbname=gantt","","") || die $DBI::errstr; |
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#--- no user servicable parts below this line |
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print "<table>"; |
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print "<tr bgcolor=#e0e0e0><td>Specification</td><td align=left>$from</td><td align=right>$to</td></tr>"; |
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my $width = 900; |
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sub draw { |
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my $l = shift @_; # lenght of event utime |
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my $type = shift @_; # what to draw |
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my $size = int($l / ($len_t / $width)) || 1; # dump size (min. size=1) |
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print STDERR "l[$type]:$l scale:",($len_t/$width)," size:$size<br>\n" if ($debug); |
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print "<img src=$type.png width=$size height=8>"; |
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} |
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my $sql = "select start,finish,specification,status |
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from gantt |
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where (start < '$from' and finish > '$from') or |
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(start > '$from' and start < '$to') |
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order by specification |
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"; |
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my $sth = $dbh->prepare($sql) || die "sql: $sql ".$dbh->errstr; |
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my %spec; # specification hash |
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my $curr_spec; |
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my $curr_t = $from_t; |
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$sth->execute() || die "sql: $sql ".$dbh->errstr; |
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while(my $row = $sth->fetchrow_hashref) { |
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if ($row->{specification} ne $curr_spec) { |
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if ($curr_t < $to_t ) { |
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my $t = $to_t - $curr_t; |
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print STDERR "[filler $curr_t:$t]" if ($debug); |
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draw($t,"gray"); |
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} |
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print "</td></tr>\n" if ($curr_t != 0); |
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print "<tr><td>", $row->{specification},"</td><td colspan=2>"; |
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$curr_t = $from_t; # init timeline |
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$curr_spec = $row->{specification}; |
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} |
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my $start_t = str2time($row->{start}); |
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my $fin_t = str2time($row->{finish}); |
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if ($start_t > $curr_t) { |
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my $t = $start_t - $curr_t; |
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print STDERR "[filler $curr_t:$t]" if ($debug); |
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draw($t,"gray"); |
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$curr_t = $start_t; |
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} |
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my $len = $fin_t - $start_t; |
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# $len = $len_t if ($len > $len_t); |
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my $less = ''; |
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my $more = ''; |
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if ($start_t < $from_t) { |
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# $len += ($from_t - $start_t); |
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$len = ($fin_t - $curr_t); |
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$less = "<<"; |
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} |
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if ($fin_t > $to_t) { |
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# $len -= ($fin_t - $to_t); |
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$len = ($to_t - $curr_t); |
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$more = ">>"; # event now shown whole |
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} |
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print STDERR "[$less",$row->{status}," $curr_t:$len$more]" if ($debug); |
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draw($len,"red"); |
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$curr_t += $len; |
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# print Dumper($row); |
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} |
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if ($curr_t < $to_t ) { |
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my $t = $to_t - $curr_t; |
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print STDERR "[filler $curr_t:$t]" if ($debug); |
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draw($t,"white"); |
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} |
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undef $sth; |
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$dbh->disconnect; |
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print "</td></tr></table>"; |
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