Modify the error method to handle error code and message.

modules/plugin_dbui/directsvc.py

@@ -6,6 +6,7 @@ __version__ = "$Revision$"
 
 
 import pprint
+import traceback
 import sys
 
 from gluon.contrib import simplejson as json
@@ -74,7 +75,7 @@ class DirectSvc(object):
         if len(request.args) == 1 and request.args(0) == 'get_api':
             return self.get_api()
         
-        self.error()
+        self.error(404, 'Object does not exist.')
         
     
     def dbg(self, *args):
@@ -92,8 +93,8 @@ class DirectSvc(object):
         return x
     
 
-    def error(self):
-        raise HTTP(404, 'Object does not exist.')
+    def error(self, code, message):
+        raise HTTP(code, message)
     
         
     def get_api(self):
@@ -165,13 +166,17 @@ class DirectSvc(object):
         li = []
         for arg in transactions:
             di = dict(arg)
+            self.dbg('transaction:', di)
             try:
                 k = proc_key(arg['action'], arg['method'])
-                di['result'] = self.procedures[k](*arg['data'])
+                if arg['data']:
+                    di['result'] = self.procedures[k](*arg['data'])
+                else:
+                    di['result'] = self.procedures[k]()
                 
-            except Exception:
+            except Exception, e:
                 traceback.print_exc(file=sys.stdout)
-                raise HTTP(500, 'Error on the server')
+                self.error(500, 'Internal server error.')
             
             del di['data']
             li.append(di)