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-rw-r--r--src/libs/serialisation/Serialiser.cpp19
1 files changed, 14 insertions, 5 deletions
diff --git a/src/libs/serialisation/Serialiser.cpp b/src/libs/serialisation/Serialiser.cpp
index d6bd1df4..d3114082 100644
--- a/src/libs/serialisation/Serialiser.cpp
+++ b/src/libs/serialisation/Serialiser.cpp
@@ -432,14 +432,23 @@ Serialiser::serialise_variables(Redland::Node subject, const GraphObject::Variab
{
for (GraphObject::Variables::const_iterator v = variables.begin(); v != variables.end(); ++v) {
if (v->first.find(":") != string::npos) {
+ if (v->second) {
const Redland::Node var_id = _world.blank_id();
const Redland::Node key(_model->world(), Redland::Node::RESOURCE, v->first);
- _model->add_statement(subject, "ingen:variable", var_id);
- _model->add_statement(var_id, "ingen:key", key);
- _model->add_statement(var_id, "ingen:value",
- AtomRDF::atom_to_node(_model->world(), v->second));
+ const Redland::Node value = AtomRDF::atom_to_node(_model->world(), v->second);
+ if (value) {
+ _model->add_statement(subject, "ingen:variable", var_id);
+ _model->add_statement(var_id, "ingen:key", key);
+ _model->add_statement(var_id, "ingen:value", value);
+ } else {
+ cerr << "Warning: can not serialise value: key '" << v->first << "', type "
+ << (int)v->second.type() << endl;
+ }
+ } else {
+ cerr << "Warning: variable with no value: key '" << v->first << "'" << endl;
+ }
} else {
- cerr << "Warning: not serialising variable with key '" << v->first << "'" << endl;
+ cerr << "Warning: not serialising variable with invalid key '" << v->first << "'" << endl;
}
}
}