Visualizando todo grafo com anzograph

backend_go/graph_queries/default.go

@@ -2,7 +2,7 @@ package graph_queries
 
 import "fmt"
 
-func defaultEdgeQuery(edgeLimit int, includeBNodes bool) string {
+func defaultEdgeQuery(limit int, offset int, includeBNodes bool) string {
 	bnodeFilter := ""
 	if !includeBNodes {
 		bnodeFilter = "FILTER(!isBlank(?s) && !isBlank(?o))"
@@ -28,7 +28,38 @@ WHERE {
   FILTER(!isLiteral(?o))
   %s
 }
+ORDER BY ?s ?p ?o
 LIMIT %d
-`, bnodeFilter, edgeLimit)
+OFFSET %d
+`, bnodeFilter, limit, offset)
 }
 
+func defaultPredicateQuery(includeBNodes bool) string {
+	bnodeFilter := ""
+	if !includeBNodes {
+		bnodeFilter = "FILTER(!isBlank(?s) && !isBlank(?o))"
+	}
+
+	return fmt.Sprintf(`
+PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
+PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
+PREFIX owl: <http://www.w3.org/2002/07/owl#>
+
+SELECT DISTINCT ?p
+WHERE {
+  {
+    VALUES ?p { rdf:type }
+    ?s ?p ?o .
+    ?o rdf:type owl:Class .
+  }
+  UNION
+  {
+    VALUES ?p { rdfs:subClassOf }
+    ?s ?p ?o .
+  }
+  FILTER(!isLiteral(?o))
+  %s
+}
+ORDER BY ?p
+`, bnodeFilter)
+}