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pages_number_field.py
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Fri, Jul 19, 23:22

pages_number_field.py
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# -*- coding: utf-8 -*-
##
## This file is part of Invenio.
## Copyright (C) 2012, 2013 CERN.
##
## Invenio is free software; you can redistribute it and/or
## modify it under the terms of the GNU General Public License as
## published by the Free Software Foundation; either version 2 of the
## License, or (at your option) any later version.
##
## Invenio is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Invenio; if not, write to the Free Software Foundation, Inc.,
## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
from wtforms import TextField
from invenio.webdeposit_field import WebDepositField
from invenio.webdeposit_workflow_utils import JsonCookerMixinBuilder
__all__ = ['PagesNumberField']
class PagesNumberField(WebDepositField, TextField, JsonCookerMixinBuilder('page_number')):
def __init__(self, **kwargs):
super(PagesNumberField, self).__init__(**kwargs)
self._icon_html = '<i class="icon-th"></i>'
def pre_validate(self, form=None):
value = self.data
def is_number(s):
try:
float(s)
return True
except ValueError:
return False
if value.isspace():
return dict(error=0, error_message='')
elif not is_number(value):
error_message = 'Pages number must be a number!'
try:
self.errors.append(error_message)
except AttributeError:
self.errors = list(self.process_errors)
self.errors.append(error_message)
return dict(error=1, \
error_message=error_message)
else:
return dict(error=0, error_message='')

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