1 files changed, 62 insertions, 0 deletions
diff --git a/docs/reference/libtracker-sparql/examples/writeonly-with-blank-nodes-example.c b/docs/reference/libtracker-sparql/examples/writeonly-with-blank-nodes-example.c
new file mode 100644
index 000000000..44114b556
--- /dev/null
+++ b/docs/reference/libtracker-sparql/examples/writeonly-with-blank-nodes-example.c
@@ -0,0 +1,62 @@
+#include <libtracker-sparql/tracker-sparql.h>
+
+int main (int argc, const char **argv)
+{
+  GError *error = NULL;
+  GVariant *v;
+  TrackerSparqlConnection *connection;
+  const gchar *query =
+    "INSERT { _:foo a nie:InformationElement } WHERE { ?x a rdfs:Class }";
+
+  connection = tracker_sparql_connection_get (NULL, &error);
+  if (!connection) {
+    g_printerr ("Couldn't obtain a connection to the Tracker store: %s",
+                error ? error->message : "unknown error");
+    g_clear_error (&error);
+
+    return 1;
+  }
+
+  /* Run a synchronous blank node update query */
+  v = tracker_sparql_connection_update_blank (connection,
+                                              query,
+                                              G_PRIORITY_DEFAULT,
+                                              NULL,
+                                              &error);
+
+  if (error) {
+    /* Some error happened performing the query, not good */
+    g_printerr ("Couldn't update the Tracker store: %s",
+                error ? error->message : "unknown error");
+
+    g_clear_error (&error);
+    g_object_unref (connection);
+
+    return 1;
+  }
+
+  if (!v) {
+    g_print ("No results were returned\n");
+  } else {
+    GVariantIter iter1, *iter2, *iter3;
+    const gchar *node;
+    const gchar *urn;
+
+    g_print ("Results:\n");
+
+    g_variant_iter_init (&iter1, v);
+    while (g_variant_iter_loop (&iter1, "aa{ss}", &iter2)) { /* aa{ss} */
+      while (g_variant_iter_loop (iter2, "a{ss}", &iter3)) { /* a{ss} */
+        while (g_variant_iter_loop (iter3, "{ss}", &node, &urn)) { /* {ss} */
+          g_print ("  Node:'%s', URN:'%s'\n", node, urn);
+        }
+      }
+    }
+
+    g_variant_unref (v);
+  }
+
+  g_object_unref (connection);
+
+  return 0;
+}