X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2Fstemmaweb%2FController%2FRelation.pm;h=7dd0c73cb5abdecbb7cb2811a2badb895d25e84b;hb=ea77ecb8864816b446be21ae0356e31523621120;hp=0b5d1bb17e9809ddd904e0ea40a192afe9769e48;hpb=56e3972ee78693b5fbcb530fad920ed9beb6be5a;p=scpubgit%2Fstemmaweb.git

diff --git a/lib/stemmaweb/Controller/Relation.pm b/lib/stemmaweb/Controller/Relation.pm
index 0b5d1bb..7dd0c73 100644
--- a/lib/stemmaweb/Controller/Relation.pm
+++ b/lib/stemmaweb/Controller/Relation.pm
@@ -1,5 +1,5 @@
 package stemmaweb::Controller::Relation;
-use JSON qw/ to_json /;
+use JSON qw/ to_json from_json /;
 use Moose;
 use Module::Load;
 use namespace::autoclean;
@@ -236,9 +236,10 @@ sub relationships :Chained('text') :PathPart :Args(0) {
 		} elsif( $c->request->method eq 'DELETE' ) {
 			my $node = $c->request->param('source_id');
 			my $target = $c->request->param('target_id');
-		
+			my $scopewide = $c->request->param('scopewide') 
+				&& $c->request->param('scopewide') eq 'true';
 			try {
-				my @vectors = $collation->del_relationship( $node, $target );
+				my @vectors = $collation->del_relationship( $node, $target, $scopewide );
 				$m->save( $tradition );
 				$c->stash->{'result'} = \@vectors;
 			} catch( Text::Tradition::Error $e ) {
@@ -280,11 +281,9 @@ sub _reading_struct {
 		my $t = $_[0]->type;
 		return $t eq 'spelling' || $t eq 'orthographic';
 	};
-	my @variants;
-	foreach my $sr ( $reading->related_readings( $sameword ) ) {
-		push( @variants, $sr->text );
-	}
-	$struct->{'variants'} = \@variants;
+	# Now add the list data
+	$struct->{'variants'} = [ map { $_->text } $reading->related_readings( $sameword ) ];
+	$struct->{'witnesses'} = [ $reading->witnesses ];
 	return $struct;
 }
 
@@ -331,7 +330,7 @@ sub reading :Chained('text') :PathPart :Args(1) {
 		if( $c->stash->{'permission'} ne 'full' ) {
 			$c->response->status( '403' );
 			$c->stash->{'result'} = { 
-				'error' => 'You do not have permission to view this tradition.' };
+				'error' => 'You do not have permission to modify this tradition.' };
 			$c->detach('View::JSON');
 			return;
 		}
@@ -389,6 +388,116 @@ sub reading :Chained('text') :PathPart :Args(1) {
 
 }
 
+=head2 duplicate
+
+ POST relation/$textid/duplicate { data }
+ 
+Duplicates the requested readings, detaching the witnesses specified in
+the list to use the new reading(s) instead of the old. The data to be
+passed should be a JSON structure:
+
+ { readings: rid1,rid2,rid3,...
+   witnesses: [ wit1, ... ] }
+
+=cut
+
+sub duplicate :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 'POST' ) {
+		if( $c->stash->{'permission'} ne 'full' ) {
+			$c->response->status( '403' );
+			$c->stash->{'result'} = { 
+				'error' => 'You do not have permission to modify this tradition.' };
+			$c->detach('View::JSON');
+			return;
+		}
+		my $errmsg;
+		my $response = {};
+		# Sort out which readings need to be duplicated from the set given, and
+		# ensure that all the given wits bear each relevant reading.
+		
+		my %wits = ();
+		map { $wits{$_} = 1 } $c->request->param('witnesses[]');
+		my %rdgranks = ();
+		foreach my $rid ( $c->request->param('readings[]') ) {
+			my $numwits = 0;
+			my $rdg = $collation->reading( $rid );
+			foreach my $rwit ( $rdg->witnesses( $rid ) ) {
+				$numwits++ if exists $wits{$rwit};
+			}
+			if( $numwits > 0 && $numwits < keys( %wits ) ) {
+				$errmsg = "Reading $rid contains some but not all of the specified witnesses.";
+				last;
+			} elsif( exists $rdgranks{ $rdg->rank } ) {
+				$errmsg = "More than one reading would be detached along with $rid at rank " . $rdg->rank;
+				last;
+			} else {
+				$rdgranks{ $rdg->rank } = $rid;
+			}
+		}
+		
+		# Now check that the readings make a single sequence.
+		unless( $errmsg ) {
+			my $prior;
+			foreach my $rank ( sort { $a <=> $b } keys %rdgranks ) {
+				my $rid = $rdgranks{$rank};
+				if( $prior ) {
+					# Check that there is only one path between $prior and $rdg.
+					foreach my $wit ( keys %wits ) {
+						unless( $collation->prior_reading( $rid, $wit ) eq $prior ) {
+							$errmsg = "Diverging witness paths from $prior to $rid at $wit";
+							last;
+						}
+					}
+				}
+				$prior = $rid;
+			}
+		}
+		
+		# Abort if we've run into a problem.
+		if( $errmsg ) {
+			$c->stash->{'result'} = { 'error' => $errmsg };
+			$c->response->status( '403' );
+			$c->forward('View::JSON');
+			return;
+		}
+		
+		# Otherwise, do the dirty work.
+		my @witlist = keys %wits;
+		foreach my $rank ( sort { $a <=> $b } keys %rdgranks ) {
+			my $newrdg;
+			my $reading_id = $rdgranks{$rank};
+			try {
+				$newrdg = $collation->duplicate_reading( $reading_id, @witlist );
+			} catch( Text::Tradition::Error $e ) {
+				$c->response->status( '403' );
+				$errmsg = $e->message;
+			} catch {
+				# Something else went wrong, probably a Moose error
+				$c->response->status( '403' );
+				$errmsg = 'Something went wrong with the request';	
+			}
+			if( $newrdg ) {
+				my $data = _reading_struct( $newrdg );
+				$data->{'orig_rdg'} = $reading_id;
+				$response->{"$newrdg"} = $data;
+			}
+		} 
+		if( $errmsg ) {
+			$c->stash->{'result'} = { 'error' => $errmsg };
+		} else {
+			$m->save( $collation );
+			$c->stash->{'result'} = $response;
+		}
+	}
+	$c->forward('View::JSON');
+}
+
+
+
 sub _check_permission {
 	my( $c, $tradition ) = @_;
     my $user = $c->user_exists ? $c->user->get_object : undef;