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helpers.py
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Tue, Jan 28, 02:40

helpers.py
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# -*- coding: utf-8 -*-
#
# This file is part of Invenio.
# Copyright (C) 2013, 2014 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.
import six
from invenio.modules.records.api import Record
from .models import DepositionDraft
def record_to_draft(record, draft=None, form_class=None, pre_process=None,
post_process=None, producer='json_for_form'):
"""
Load a record into a draft
"""
if draft is None:
draft = DepositionDraft(None, form_class=form_class)
draft.values = record.produce('json_for_form')
if pre_process:
draft = pre_process(draft)
if draft.has_form():
form = draft.get_form()
form.post_process()
draft.update(form)
# Custom post process function
if post_process:
draft = post_process(draft)
return draft
def drafts_to_record(drafts, post_process=None):
"""
Export recjson from drafts
"""
values = DepositionDraft.merge_data(drafts)
if post_process:
values = post_process(values)
return make_record(values)
def deposition_record(record, form_classes, pre_process_load=None,
post_process_load=None, process_export=None):
"""
Generate recjson representation of a record for this given deposition.
"""
return drafts_to_record(
[
record_to_draft(
record,
form_class=cls,
pre_process=pre_process_load,
post_process=post_process_load,
)
for cls in form_classes
],
post_process=process_export
)
def make_record(values, is_dump=True):
"""
Export recjson from drafts
"""
if is_dump:
record = Record(json=values, master_format='marc')
else:
record = Record(master_format='marc')
for k, v in six.iteritems(values):
record[k] = v
return record

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