fix(cognitarium): prevent predicate blank node filter

axone-protocol · Feb 27, 2024 · 447bc72 · 447bc72
1 parent 12d7952
commit 447bc72
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/contracts/okp4-cognitarium/src/querier/engine.rs b/contracts/okp4-cognitarium/src/querier/engine.rs
@@ -355,11 +355,15 @@ impl<'a> TriplePatternIterator<'a> {
     )> {
         let (s_filter, sb_filter, s_bind) =
             Self::resolve_pattern_part(subject, ResolvedVariable::as_subject, input)?;
-        let (p_filter, _, p_bind) =
+        let (p_filter, pb_filter, p_bind) =
             Self::resolve_pattern_part(predicate, ResolvedVariable::as_predicate, input)?;
         let (o_filter, ob_filter, o_bind) =
             Self::resolve_pattern_part(object, ResolvedVariable::as_object, input)?;
 
+        if pb_filter {
+            None?;
+        }
+
         Some((
             (s_filter, p_filter, o_filter),
             (sb_filter, ob_filter),