sub text :Chained('/') :PathPart('relation') :CaptureArgs(1) {
my( $self, $c, $textid ) = @_;
- $c->stash->{'tradition'} = $c->model('Directory')->tradition( $textid );
+ # If the tradition has more than 500 ranks or so, split it up.
+ my $tradition = $c->model('Directory')->tradition( $textid );
+ my $length = $tradition->collation->end->rank;
+ if( $length > 700 ) {
+ # Segment the tradition in order not to overload the browser.
+ # Split it up into units of 500 ranks, but have each segment show
+ # 550 ranks so that overlap works.
+ my @divs;
+ my $r = 0;
+ while( $r + 50 < $length ) {
+ push( @divs, $r );
+ $r += 500;
+ }
+ $c->stash->{'textsegments'} = [];
+ foreach my $start ( @divs ) {
+ my $seg = { 'start' => $start };
+ $seg->{'end'} = $start + 550 > $length ? $length : $start + 550;
+ push( @{$c->stash->{'textsegments'}}, $seg );
+ }
+ }
+ $c->stash->{'textid'} = $textid;
+ $c->stash->{'tradition'} = $tradition;
}
sub main :Chained('text') :PathPart('') :Args(0) {
my( $self, $c ) = @_;
+ my $startseg = $c->req->param('start');
my $tradition = delete $c->stash->{'tradition'};
my $collation = $tradition->collation;
- my $svg_str = $collation->as_svg;
+ my $svgopts;
+ if( $startseg ) {
+ # Only render the subgraph from startseg to +500 or end,
+ # whichever is less.
+ $svgopts = { 'from' => $startseg };
+ $svgopts->{'to'} = $startseg + 550
+ if $startseg + 550 < $collation->end->rank;
+ } elsif( exists $c->stash->{'textsegments'} ) {
+ # This is the unqualified load of a long tradition. We implicitly start
+ # at zero, but go only as far as 550.
+ $svgopts = { 'to' => 550 };
+ }
+ my $svg_str = $collation->as_svg( $svgopts );
$svg_str =~ s/\n//gs;
$c->stash->{'svg_string'} = $svg_str;
$c->stash->{'text_title'} = $tradition->name;
$c->stash->{'template'} = 'relate.tt';
-
}
=head2 relationships
- GET $textid/relationships
+ GET relation/$textid/relationships
Returns the list of relationships defined for this text.
- POST $textid/relationships { request }
+ POST relation/$textid/relationships { request }
Attempts to define the requested relationship within the text. Returns 200 on
success or 403 on error.
- DELETE $textid/relationships { request }
+ DELETE relation/$textid/relationships { request }
=cut