Fix for bug #636 in MapServer export script

Enhanced the text_export.py script.


git-svn-id: http://svn.osgeo.org/qgis/trunk@7429 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: gsherman

tools/mapserver_export/ms_export.py

@@ -559,7 +559,11 @@ def uniqueRenderer(self, layerNode, symbolNode):
     for cls in classes:
       self.outFile.write("    CLASS\n")
 
-      lower = cls.getElementsByTagName('lowervalue')[0].childNodes[0].nodeValue.encode('utf-8')
+      try:
+        lower = cls.getElementsByTagName('lowervalue')[0].childNodes[0].nodeValue.encode('utf-8')
+      except IndexError:
+        # set to blank in the case where the field used for rendering has no value
+        lower = ""
 
       # If there's a label use it, otherwise autogenerate one
       try:

tools/mapserver_export/test_export.py

@@ -15,9 +15,17 @@
 #***************************************************************************/
 
 
-# test script to export a sample QGIS project file to mapserver
+# Test script to export a sample QGIS project file to mapserver
+# No template of header/footer information is included in the map file
+# To change units, image type, name, and dimensions, modify the ex.setOptions line
+#
+import sys
 import ms_export
-ex = ms_export.Qgis2Map('./test1.qgs', './test1.map')
-ex.setOptions( 'Meters', 'JPEG', 'TestMap', '800', '600', '', '', '')
-
-ex.writeMapFile()
+if len(sys.argv) == 3:
+  ex = ms_export.Qgis2Map('/home/gsherman/town_test.qgs', './town_test.map')
+  ex.setOptions( 'Meters', 'JPEG', 'TestMap', '800', '600', '', '', '')
+  ex.writeMapFile()
+else:
+  print "Test script to export a QGIS project file to a MapServer map file"
+  print "Specify the QGIS project file and a file name for the map file to be created:"
+  print "  text_export.py my_qgis_project.qgs my_output_map.map"