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+ applied patch from @lightmare - #1325

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This commit is contained in:
artemp 2012-08-16 11:00:07 +01:00
parent 572f3d3f49
commit e6e32fcb39
1 changed files with 7 additions and 9 deletions
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16
bindings/python/python_grid_utils.cpp
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@ -379,12 +379,15 @@ void render_layer_for_grid(const mapnik::Map& map,
throw std::runtime_error(s.str());
}
// convert python list to std::vector
// convert python list to std::set
std::set<std::string> attributes;
boost::python::ssize_t num_fields = boost::python::len(fields);
for(boost::python::ssize_t i=0; i<num_fields; i++) {
boost::python::extract<std::string> name(fields[i]);
if (name.check()) {
if (name.check())
{
grid.add_property_name(name());
attributes.insert(name());
}
else
{
@ -394,8 +397,6 @@ void render_layer_for_grid(const mapnik::Map& map,
}
}
// copy property names
std::set<std::string> attributes = grid.property_names();
std::string const& key = grid.get_key();
// if key is special __id__ keyword
@ -405,13 +406,10 @@ void render_layer_for_grid(const mapnik::Map& map,
// if __id__ is requested to be dumped out
// remove it so that datasource queries will not break
if (attributes.find(key) != attributes.end())
{
attributes.erase(key);
}
attributes.erase(key);
}
// if key is not the special __id__ keyword
else if (attributes.find(key) == attributes.end())
else
{
// them make sure the datasource query includes this field
attributes.insert(key);