Add a mechanism to transport database validator on the client side.

modules/plugin_dbui/cfgsvc.py

-""" $Id$
+""" Service to determine ExtJS widget configuration parameters 
+    from the web2py model.
+    
     Author: R. Le Gac
+
 """
-from reportlab.lib.yaml import BaseParser
 
 __version__ = "$Revision$"
 
 
 from basesvc import BaseSvc
 from foreignfield import ForeignField
+from gluon.validators import (IS_DATE_IN_RANGE,
+                              IS_DATETIME_IN_RANGE,
+                              IS_DECIMAL_IN_RANGE,
+                              IS_FLOAT_IN_RANGE,
+                              IS_INT_IN_RANGE,
+                              IS_MATCH,
+                              IS_LENGTH)
 from helper import encode_field
 from mapper import map_default
 from modifier import Widget
@@ -20,7 +29,8 @@ FIELD_IN_DBFIELD = "Field %s already in the dbFields list."
 FTYPE_TO_XTYPE = {'boolean':   {'xtype': 'checkbox'},\
                   'date':      {'xtype': 'datefield', 'format': 'Y-m-d'},\
                   'datetime':  {'xtype': 'datefield', 'format': 'Y-m-d H:i:s'},\
-                  'double':    {'xtype': 'numberfield'},\
+                  'double':    {'xtype': 'numberfield', 'decimalPrecision':2,
+                                                        'decimalSeparator': '.'},\
                   'id':        {'xtype': 'textfield'},\
                   'integer':   {'xtype': 'numberfield'},\
                   'password':  {'xtype': 'textfield', 'inputType': 'password'},\
@@ -38,8 +48,6 @@ SUCCESS= 'success'
 TOTAL = 'count'
 
 
-
-
 class CfgSvc(BaseSvc):
     """The configuration service which build the configuration options
     for the ExtJS widget.
@@ -248,7 +256,10 @@ class CfgSvc(BaseSvc):
         # tool tip
         if field.comment:
             cfg["tipText"] = field.comment
-            
+         
+        # validators
+        cfg.update(self._get_field_validators(field))
+        
         # hide primary key
         # hide field which are not readable and not writable
         # hide field request by the form modifier
@@ -372,6 +383,51 @@ class CfgSvc(BaseSvc):
         return di
     
     
+    def _get_field_validators(self, field):
+        """ Determine configuration parameters to handle database validators
+        on the client side.
+        
+        It mainly set value for minValue, maxValue, regular expression, ....
+        
+        Return a dictionary
+        
+        """
+        cfg = {}
+        
+        validators = field.requires
+        if not isinstance(validators, (list, tuple)):
+            validators = [validators]
+            
+        for vdt in validators:
+            
+            # date and time validators
+            if isinstance(vdt, IS_DATE_IN_RANGE):
+                format = '%Y-%m-%d'
+                cfg['minValue'] = vdt.minimum.strftime(format)
+                cfg['maxValue'] = vdt.maximum.strftime(format)
+
+            elif isinstance(vdt, IS_DATETIME_IN_RANGE):
+                format = '%Y-%m-%d %H:%M:%S'
+                cfg['minValue'] = vdt.minimum.strftime(format)
+                cfg['maxValue'] = vdt.maximum.strftime(format)
+
+            # number validators
+            elif isinstance(vdt, (IS_DECIMAL_IN_RANGE, IS_FLOAT_IN_RANGE, IS_INT_IN_RANGE)):
+                cfg['minValue'] = vdt.minimum
+                cfg['maxValue'] = vdt.maximum
+            
+            # string validator
+            elif isinstance(vdt, IS_MATCH):
+                cfg["regex"] = vdt.regex.pattern
+            
+            # others validator
+            elif isinstance(vdt, IS_LENGTH):
+                cfg["maxLength"] = vdt.maxsize
+                cfg["minLength"] = vdt.minsize
+                
+        return cfg
+
+
     def _is_foreign_field(self, tablename, fieldname):
         """ Wrapper method
         

static/plugin_dbui/CHANGELOG

 --------------------------------- CHANGE LOG ----------------------------------
 
-0.4.x (Rev)
+HEAD
+  - Add mechanism to transport database validators on the client side.
   - Improve the GridModifier to modify column parameters.
+  - Bugs fixed
   
 0.4.2 (Oct 11)
   - Migrate to git and to ExtJS 3.4