o Don't to Graph.commit() unless this is an updateable SPARQL store.

1 files changed, 4 insertions, 3 deletions

diff --git a/trygvis/eda/cli/__init__.py b/trygvis/eda/cli/__init__.py
index 04de836..69905cd 100644
--- a/trygvis/eda/cli/__init__.py
+++ b/trygvis/eda/cli/__init__.py
@@ -45,12 +45,12 @@ def with_database(tx):
             raise CliException("The database is corrupt: %s" % path)
     elif db_type == 'sparql':
         query_endpoint = config["db"]["url"]
-        update_endpoint = config["db"]["update_url"]
 
-        if update_endpoint is None:
+        if not hasattr(config["db"], "update_url") is None:
             g = sparqlstore.SPARQLStore()
             g.open(query_endpoint)
         else:
+            update_endpoint = config["db"]["update_url"]
             # def my_bnode_ext(node):
             #     if isinstance(node, BNode):
             #         return '<bnode:b%s>' % node
@@ -64,7 +64,8 @@ def with_database(tx):
     try:
         print("g=%s" % g)
         tx(g)
-        g.commit()
+        if isinstance(g, sparqlstore.SPARQLUpdateStore):
+            g.commit()
     finally:
         g.close()