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Supreeth KV


Link: http://stackoverflow.com/questions/32688253/python-constraints-error-message

I have written a function like below in Python. works like if user selects holiday start-date and holiday end-date with time correctly it will accepts, else it will show an error message like 'Error: Entered Invalid Date or Time'


Python code:

def _date_start_end_validate(self, cr, uid, ids, context=None):
  sr_ids = self.search(cr, 1 ,[], context=context)
  for self_obj in self.browse(cr, uid, ids, context=context):
      if self_obj.date_start >= self_obj.date_end:
          return False
  return True
_constraints = [(_date_start_end_validate, 'Error: Entered Invalid Date or Time', ['Dates'])]

I need to display which start-date is showing error here, that date should to displayed.

How to get that start-date information in constraints.

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Pawan
Best Answer

Supreeth,

You can raise an exception in place of "return False" statement and show your customized message there only....like:
raise osv.except_osv(_('Error:'),_('Entered Invalid Date or Time %s')%(YOUR_DATE_FIELD))

Regards

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Supreeth KV
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@Pawan Thanks, It is working I defined: for self_obj in self.browse(cr, uid, ids, context=context): xcv = self_obj['description'] if self_obj.date_start >= self_obj.date_end: raise osv.except_osv(_('Error:'),_('Entered Invalid Date/Time: %s')%(xcv)) return True Works fine.

Pawan

Great! :)

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Ankit H Gandhi(AHG)
Best Answer

Dear supreeth,

Try below code may be use full.

def _date_start_end_validate(self, cr, uid, ids, context=None):

    sr_ids = self.search(cr, 1 ,[], context=context)

    for self_obj in self.browse(cr, uid, ids, context=context):

        if self_obj.date_start >= self_obj.date_end:

            return False

    return True

def _check_msg_with_start_date(self, cr, uid, ids, context):

    data = self.browse(cr, uid, ids, context=context)

    return "Error: Entered Invalid Date or Time {} ".format(data.date_start)

_constraints = [

    (_date_start_end_validate, lambda self, *a, **kw: self._check_msg_with_start_date(*a, **kw), ['date_start','date_end'])

]

Thanks & Regards

Ankit H Gandhi

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Supreeth KV
Author

Thanks @ankit

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Solanki Shamji
Best Answer 

    def _date_start_end_validate(self, cr, uid, ids, context=None):
        self_data = self.browse(cr, uid, ids[0], context=context)         
        if self_data.date_start and if self_data.date_end:
            start_date = datetime.strptime(self_data.date_star, DEFAULT_SERVER_DATETIME_FORMAT)
            end_date = datetime.strptime(self_data.date_end, DEFAULT_SERVER_DATETIME_FORMAT)
            if start_date > end_date:
                return False
            else:
                return True
        return True

    _constraints = [
        (_date_start_end_validate, 'Error!\nEntered Invalid Date or Time', ['date_start','date_end'])
    ]

Try above code may be this will help you.

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