X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FText%2FTradition%2FCollation%2FRelationshipStore.pm;h=0dc6a2d901694b5737abf8176b07ad1f4d27deca;hb=9d829138736a0629a8604b395995567592c1a989;hp=21faa93db59f4db770cd1838d0a75f253dae0a77;hpb=f222800ee774de3efdbe6a19da0bd687edb599be;p=scpubgit%2Fstemmatology.git

diff --git a/lib/Text/Tradition/Collation/RelationshipStore.pm b/lib/Text/Tradition/Collation/RelationshipStore.pm
index 21faa93..0dc6a2d 100644
--- a/lib/Text/Tradition/Collation/RelationshipStore.pm
+++ b/lib/Text/Tradition/Collation/RelationshipStore.pm
@@ -37,23 +37,19 @@ my $t = Text::Tradition->new(
     );
 my $c = $t->collation;
 
-my @v1 = $c->add_relationship( 'n21', 'n22', { 'type' => 'meaning' } );
+my @v1 = $c->add_relationship( 'n21', 'n22', { 'type' => 'lexical' } );
 is( scalar @v1, 1, "Added a single relationship" );
 is( $v1[0]->[0], 'n21', "Got correct node 1" );
 is( $v1[0]->[1], 'n22', "Got correct node 2" );
-my @v2 = $c->add_relationship( 'n9', 'n23', 
+my @v2 = $c->add_relationship( 'n24', 'n23', 
 	{ 'type' => 'spelling', 'scope' => 'global' } );
 is( scalar @v2, 2, "Added a global relationship with two instances" );
 @v1 = $c->del_relationship( 'n22', 'n21' );
 is( scalar @v1, 1, "Deleted first relationship" );
-@v2 = $c->del_relationship( 'n8', 'n13' );
+@v2 = $c->del_relationship( 'n12', 'n13' );
 is( scalar @v2, 2, "Deleted second global relationship" );
-try {
-	my @v3 = $c->del_relationship( 'n1', 'n2' );
-	ok( 0, "Should have errored on non-existent relationship" );
-} catch( Text::Tradition::Error $e ) {
-	like( $e->message, qr/No relationship defined/, "Attempt to delete non-existent relationship errored" );
-}
+my @v3 = $c->del_relationship( 'n1', 'n2' );
+is( scalar @v3, 0, "Nothing deleted on non-existent relationship" );
 
 =end testing
 
@@ -255,7 +251,6 @@ sub add_relationship {
     if( $relationship->colocated && $relationship->nonlocal && !$thispaironly ) {
     	push( @vectors, $self->_find_applicable( $relationship ) );
     }
-    $DB::single = 1 if grep { $_->[0] eq 'w494' || $_->[1] eq 'w494' } @vectors;
         
     # Now set the relationship(s).
     my @pairs_set;
@@ -264,10 +259,11 @@ sub add_relationship {
     	if( $rel && $rel ne $relationship ) {
     		if( $rel->nonlocal ) {
     			throw( "Found conflicting relationship at @$v" );
-    		} else {
+    		} elsif( $rel->type ne 'collated' ) {
+    			# Replace a collation relationship; leave any other sort in place.
     			warn "Not overriding local relationship set at @$v";
+				next;
     		}
-    		next;
     	}
     	$self->_set_relationship( $relationship, @$v );
     	push( @pairs_set, $v );
@@ -276,6 +272,19 @@ sub add_relationship {
     return @pairs_set;
 }
 
+=head2 del_scoped_relationship( $reading_a, $reading_b )
+
+Returns the general (document-level or global) relationship that has been defined 
+between the two reading strings. Returns undef if there is no general relationship.
+
+=cut
+
+sub del_scoped_relationship {
+	my( $self, $rdga, $rdgb ) = @_;
+	my( $first, $second ) = sort( $rdga, $rdgb );
+	return delete $self->scopedrels->{$first}->{$second};
+}
+
 sub _find_applicable {
 	my( $self, $rel ) = @_;
 	my $c = $self->collation;
@@ -327,17 +336,19 @@ non-local, removes the relationship everywhere in the graph.
 sub del_relationship {
 	my( $self, $source, $target ) = @_;
 	my $rel = $self->get_relationship( $source, $target );
-	throw( "No relationship defined between $source and $target" ) unless $rel;
+	return () unless $rel; # Nothing to delete; return an empty set.
 	my @vectors = ( [ $source, $target ] );
 	$self->_remove_relationship( $source, $target );
 	if( $rel->nonlocal ) {
 		# Remove the relationship wherever it occurs.
+		# Remove the relationship wherever it occurs.
 		my @rel_edges = grep { $self->get_relationship( @$_ ) == $rel }
 			$self->relationships;
 		foreach my $re ( @rel_edges ) {
 			$self->_remove_relationship( @$re );
 			push( @vectors, $re );
 		}
+		$self->del_scoped_relationship( $rel->reading_a, $rel->reading_b );
 	}
 	return @vectors;
 }