Update modules converters to add missing types in JSON_TYPES.

modules/plugin_dbui/converter.py

@@ -4,7 +4,7 @@
 import gluon.dal
 import re
 
-
+from datetime import date, datetime, time
 from extjs import (Base,
                    CheckBox,
                    ComboBox,
@@ -29,6 +29,7 @@ from extjs import (Base,
                    Model,
                    PanelWithUrlSelector)
 from gluon import current
+from gluon.languages import lazyT
 from gluon.storage import Storage
 from gluon.tools import PluginManager
 from gridmodifier import ROW_NUMBERING
@@ -68,8 +69,24 @@ PAGE = 'page'
 SUCCESS = 'success'
 TOTAL = 'count'
 
-# list of type which can be converted as a JSON string
-JSON_TYPES = (bool, dict, float, int, list, long, str, tuple)
+# types which can be converted as a JSON string using plugin_dbui.JSONEncoder:
+#
+#     from plugin_dbui import JSONEncode
+#     s = json.dumps(foo, cls=JSONEncoder)
+#
+JSON_TYPES = (bool,
+              date,
+              datetime,
+              dict,
+              float,
+              int,
+              lazyT,
+              list,
+              long,
+              str,
+              time,
+              tuple,
+              unicode)
 
 # xtype defining linked comboBoxes
 X_LINKED_COMBO = ['xcomboboxmaster', 'xcomboboxslave']