language_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 SelectField
	from invenio.webdeposit_field import WebDepositField
	from invenio.webdeposit_workflow_utils import JsonCookerMixinBuilder

	__all__ = ['LanguageField']


	class LanguageField(WebDepositField, SelectField, JsonCookerMixinBuilder('language')):

	def __init__(self, **kwargs):
	super(LanguageField, self).__init__(**kwargs)
	self._icon_html = '<i class="icon-flag"></i>'

	def pre_validate(self, form=None):
	return dict(error=0, error_message='')