#!/usr/bin/python2.5

#

# Copyright 2009 the Melange authors.

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

#   http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

"""GHOP module cleaning methods.

"""

__authors__ = [

    '"Madhusudan.C.S" <madhusudancs@gmail.com>',

    ]

from django import forms

from django.utils.translation import ugettext

def cleanTaskComment(comment_field, action_field, ws_field):

  """Cleans the comment form and checks to see if there is either

  action or comment content.

  Raises ValidationError if:

    -There is no action taking place and no comment present

    -The action is needs_review and there is no comment or work submission

     present

  """

  def wrapper(self):

    """Decorator wrapper method.

    """

    cleaned_data = self.cleaned_data

    content = cleaned_data.get(comment_field)

    action = cleaned_data.get(action_field)

    work_submission = cleaned_data.get(ws_field)

    if action == 'noaction' and not content:

      raise forms.ValidationError(

          ugettext('You cannot have comment field empty with no action.'))

    if action == 'needs_review' and not content and not work_submission:

      raise forms.ValidationError(

          ugettext('You cannot have both comment field and work '

                   'submission fields empty.'))

    return cleaned_data

  return wrapper