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only serialize Parameters if one or more exist

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This commit is contained in:
Dane Springmeyer 2011-12-05 18:22:25 -08:00
parent 9203639640
commit 410dea5001
1 changed files with 15 additions and 13 deletions
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26
src/save_map.cpp
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@ -793,19 +793,21 @@ class serialize_type : public boost::static_visitor<>
void serialize_parameters( ptree & map_node, mapnik::parameters const& params) void serialize_parameters( ptree & map_node, mapnik::parameters const& params)
{ {
ptree & params_node = map_node.push_back( if (params.size()) {
ptree::value_type("Parameters", ptree()))->second; ptree & params_node = map_node.push_back(
ptree::value_type("Parameters", ptree()))->second;
parameters::const_iterator it = params.begin(); parameters::const_iterator it = params.begin();
parameters::const_iterator end = params.end(); parameters::const_iterator end = params.end();
for (; it != end; ++it) for (; it != end; ++it)
{ {
boost::property_tree::ptree & param_node = params_node.push_back( boost::property_tree::ptree & param_node = params_node.push_back(
boost::property_tree::ptree::value_type("Parameter", boost::property_tree::ptree::value_type("Parameter",
boost::property_tree::ptree()))->second; boost::property_tree::ptree()))->second;
param_node.put("<xmlattr>.name", it->first ); param_node.put("<xmlattr>.name", it->first );
param_node.put_value( it->second ); param_node.put_value( it->second );
boost::apply_visitor(serialize_type(param_node),it->second); boost::apply_visitor(serialize_type(param_node),it->second);
}
} }
} }