def getAttributes(shapefile, WFS_URL):
"""
Given a valid shapefile(WFS Featuretype as returned by getShapefiles), this function will
make a request for one feature from the featureType and parse out the attributes that come from
a namespace not associated with the normal GML schema. There may be a better way to determine
which are shapefile dbf attributes, but this should work pretty well.
"""
wfs = WebFeatureService(WFS_URL, version='1.1.0')
feature = wfs.getfeature(typename=shapefile, maxfeatures=1, propertyname=None)
gml = etree.parse(feature)
gml_root=gml.getroot()
name_spaces = gml_root.nsmap
attributes = []
for namespace in name_spaces.values():
if namespace not in ['http://www.opengis.net/wfs',
'http://www.w3.org/2001/XMLSchema-instance',
'http://www.w3.org/1999/xlink',
'http://www.opengis.net/gml',
'http://www.opengis.net/ogc',
'http://www.opengis.net/ows']:
custom_namespace = namespace
for element in gml.iter('{'+custom_namespace+'}*'):
if etree.QName(element).localname not in ['the_geom', 'Shape', shapefile.split(':')[1]]:
attributes.append(etree.QName(element).localname)
return attributes
def SOSElement(tag, nsmap=nsmap):
t = etree.QName(nsmap['sos'], tag)
return etree.Element(t, nsmap=nsmap)
def SWEElement(tag, nsmap=nsmap):
t = etree.QName(nsmap['swe'], tag)
return etree.Element(t, nsmap=nsmap)
def GMLElement(tag, nsmap=nsmap):
t = etree.QName(nsmap['gml'], tag)
return etree.Element(t, nsmap=nsmap)
def OMElement(tag, nsmap=nsmap):
t = etree.QName(nsmap['om'], tag)
return etree.Element(t, nsmap=nsmap)
