plugin throws error on YAML detail.message

[Karl DeBisschop]

The detail from YAML did not include a message attribute, so I could not diagnose the ultimate error.

[udebika@usbost-fenservi trac-hacks]$ svn diff

ganttchartplugin/0.11/gantt/gantt.py

@@ -201 +201 @@
             mstart,mend = self.process_dates(data)
             self.draw_chart(data,mstart,mend,img_path,80,20,False)
         except yaml.YAMLError,  detail :
-            msg = "Data Loading Error: " + detail.message
+            msg = "Data Loading Error: "
+            if hasattr(detail, 'message'):
+                msg = msg + detail.message
             if hasattr(detail, 'problem_mark'):
                 mark = detail.problem_mark
                 msg = msg + "<br />Error position: (%s:%s)" % (mark.line+1, mark.column+1)

[Karl DeBisschop]

svn diff file

[Ryan J Ollos]

Patch applied in #7129.