package stemmaweb::Controller::Relation;
use Moose;
use namespace::autoclean;
+use TryCatch;
BEGIN { extends 'Catalyst::Controller' }
=head1 DESCRIPTION
-The stemma analysis tool with the pretty colored table.
+The reading relationship mapper with draggable nodes.
=head1 METHODS
+=head2 index
+
GET relation/$textid
Renders the application for the text identified by $textid.
-=head2 index
+=cut
+
+sub index :Path :Args(0) {
+ my( $self, $c ) = @_;
+ $c->stash->{'template'} = 'relate.tt';
+}
+
+=head2 help
+
+ GET relation/help
+
+Returns the help window HTML.
+
+=cut
+
+sub help :Local :Args(0) {
+ my( $self, $c ) = @_;
+ $c->stash->{'template'} = 'relatehelp.tt';
+}
+
+=head2 definitions
+
+ GET relation/definitions
+
+Returns a data structure giving the valid types and scopes for a relationship.
+
+=cut
-The relationship editor tool.
+sub definitions :Local :Args(0) {
+ my( $self, $c ) = @_;
+ my $valid_relationships = [ qw/ spelling orthographic grammatical meaning
+ lexical transposition / ];
+ my $valid_scopes = [ qw/ local global / ];
+ $c->stash->{'result'} = { 'types' => $valid_relationships, 'scopes' => $valid_scopes };
+ $c->forward('View::JSON');
+}
+
+=head2 text
+ GET relation/$textid/
+
+ Runs the relationship mapper for the specified text ID.
+
=cut
-sub index :Path :Args(1) {
+sub text :Chained('/') :PathPart('relation') :CaptureArgs(1) {
my( $self, $c, $textid ) = @_;
- my $m = $c->model('Directory');
- my $tradition = $m->tradition( $textid );
- my $table = $tradition->collation->make_alignment_table();
- my $witlist = map { $_->{'witness'} } @{$table->{'alignment'}};
- $c->stash->{witnesses} = $witlist;
- $c->stash->{alignment} = $table;
- $c->stash->{template} = 'relate.tt';
+ # 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 $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;
+ $c->stash->{'template'} = 'relate.tt';
+}
+
+=head2 relationships
+
+ GET relation/$textid/relationships
+
+Returns the list of relationships defined for this text.
+
+ POST relation/$textid/relationships { request }
+
+Attempts to define the requested relationship within the text. Returns 200 on
+success or 403 on error.
+
+ DELETE relation/$textid/relationships { request }
+
+
+=cut
+
+sub relationships :Chained('text') :PathPart :Args(0) {
+ my( $self, $c ) = @_;
+ my $tradition = delete $c->stash->{'tradition'};
+ my $collation = $tradition->collation;
+ my $m = $c->model('Directory');
+ if( $c->request->method eq 'GET' ) {
+ my @pairs = $collation->relationships; # returns the edges
+ my @all_relations;
+ foreach my $p ( @pairs ) {
+ my $relobj = $collation->relations->get_relationship( @$p );
+ next if $relobj->type eq 'collated'; # Don't show these
+ my $relhash = { source => $p->[0], target => $p->[1],
+ type => $relobj->type, scope => $relobj->scope };
+ $relhash->{'note'} = $relobj->annotation if $relobj->has_annotation;
+ push( @all_relations, $relhash );
+ }
+ $c->stash->{'result'} = \@all_relations;
+ } elsif( $c->request->method eq 'POST' ) {
+ my $node = $c->request->param('source_id');
+ my $target = $c->request->param('target_id');
+ my $relation = $c->request->param('rel_type');
+ my $note = $c->request->param('note');
+ my $scope = $c->request->param('scope');
+
+ my $opts = { 'type' => $relation,
+ 'scope' => $scope };
+ $opts->{'annotation'} = $note if $note;
+
+ try {
+ my @vectors = $collation->add_relationship( $node, $target, $opts );
+ $c->stash->{'result'} = \@vectors;
+ $m->save( $tradition );
+ } catch( Text::Tradition::Error $e ) {
+ $c->response->status( '403' );
+ $c->stash->{'result'} = { 'error' => $e->message };
+ }
+ } elsif( $c->request->method eq 'DELETE' ) {
+ my $node = $c->request->param('source_id');
+ my $target = $c->request->param('target_id');
+
+ try {
+ my @vectors = $collation->del_relationship( $node, $target );
+ $m->save( $tradition );
+ $c->stash->{'result'} = \@vectors;
+ } catch( Text::Tradition::Error $e ) {
+ $c->response->status( '403' );
+ $c->stash->{'result'} = { 'error' => $e->message };
+ }
+ }
+ $c->forward('View::JSON');
+}
+
+
=head2 end
Attempt to render a view, if needed.
projects / scpubgit/stemmatology.git / blobdiff