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admin.py
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# -*- coding: utf-8 -*-
#
# This file is part of Invenio.
# Copyright (C) 2014, 2015 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.
"""Knowledge Flask Blueprint."""
import os
from flask import request
from invenio.base.i18n import _
from invenio.ext.admin.views import ModelView
from invenio.ext.sqlalchemy import db
from invenio.modules.search.models import Collection
from .forms import DynamicKnowledgeForm, KnowledgeForm, KnwKBRVALForm, \
TaxonomyKnowledgeForm, WrittenAsKnowledgeForm
from .models import KnwKB, KnwKBRVAL
def KnwKBRVAL_id_knwKB_formatter(view, context, model, name):
"""Formatter for the id_knwKB: return the Knowledge name instead."""
return model.kb.name
def Knowledge_kbtype_formatter(view, context, model, name):
"""Formatter for the kbtype: return the Knowledge name instead."""
value = model.kbtype
return next((key for key, val in KnwKB.KNWKB_TYPES.items() if val == value),
None)
class KnwKBRVALAdmin(ModelView):
"""Flask-Admin module to manage Knowledge Base Mappings."""
form = KnwKBRVALForm
column_list = ['id_knwKB', 'm_key', 'm_value']
column_labels = dict(
id_knwKB='Knowledge',
m_key='Map From',
m_value='To',)
column_formatters = dict(
id_knwKB=KnwKBRVAL_id_knwKB_formatter
)
column_sortable_list = ('m_key', 'm_value', 'id_knwKB')
column_searchable_list = ('m_key', 'm_value')
column_default_sort = 'id_knwKB'
# TODO add filter for id_knwKB!
column_filters = ['m_key']
def __init__(self, app, *args, **kwargs):
"""Constructor.
:param app: flask application
"""
super(KnwKBRVALAdmin, self).__init__(*args, **kwargs)
class KnowledgeAdmin(ModelView):
"""Flask-Admin module to manage knowledge."""
_can_create = True
_can_edit = True
# TODO check if multiple deletes of taxonomy type, also delete the
# associated files.
_can_delete = True
acc_view_action = 'cfgbibknowledge'
acc_edit_action = 'cfgbibknowledge'
acc_delete_action = 'cfgbibknowledge'
form = KnowledgeForm
column_list = ('name', 'kbtype', 'description')
column_formatters = dict(
kbtype=Knowledge_kbtype_formatter
)
column_filters = ('kbtype',)
# FIXME wait that Issue #2690 is fixed to finish the works
# column_choices = {
# 'kbtype': [(v, k) for (k, v) in KnwKB.KNWKB_TYPES.iteritems()]
# }
column_sortable_list = ('name', 'kbtype')
list_template = 'knowledge/list.html'
def after_model_change(self, form, model, is_created):
"""Save model."""
super(KnowledgeAdmin, self).after_model_change(form, model, is_created)
if form.kbtype.data == KnwKB.KNWKB_TYPES['dynamic']:
id_collection = form.id_collection.data or None
collection = Collection.query.filter_by(
id=id_collection).one() if id_collection else None
model.set_dyn_config(
field=form.output_tag.data,
expression=form.search_expression.data,
collection=collection)
if form.kbtype.data == KnwKB.KNWKB_TYPES['taxonomy']:
if form.tfile.data:
file_name = model.get_filename()
file_data = request.files[form.tfile.name].read()
with open(file_name, 'w') as f:
f.write(file_data)
def edit_form(self, obj=None):
"""Edit form."""
kbtype = request.args['kbtype'] if 'kbtype' in request.args else 'w'
if kbtype == KnwKB.KNWKB_TYPES['written_as']:
self.form = WrittenAsKnowledgeForm
elif kbtype == KnwKB.KNWKB_TYPES['dynamic']:
self.form = DynamicKnowledgeForm
else:
self.form = TaxonomyKnowledgeForm
form = self.form(obj=obj)
if not form.is_submitted():
# load extra data: obj => form
if kbtype == KnwKB.KNWKB_TYPES['dynamic']:
if obj.kbdefs:
form.id_collection.data = obj.kbdefs.id_collection
form.output_tag.data = obj.kbdefs.output_tag
form.search_expression.data = obj.kbdefs.search_expression
if kbtype == KnwKB.KNWKB_TYPES['taxonomy']:
file_name = obj.get_filename()
if os.path.isfile(file_name):
form.tfile.label.text = form.tfile.label.text + " *"
# TODO add the possibility to download the file
form.tfile.description = _("Already uploaded %(name)s",
name=obj.get_filename())
form.kbtype.data = kbtype
return form
def create_form(self, obj=None):
"""Create form."""
kbtype = request.args['kbtype'] if 'kbtype' in request.args else 'w'
if kbtype == KnwKB.KNWKB_TYPES['written_as']:
self.form = WrittenAsKnowledgeForm
elif kbtype == KnwKB.KNWKB_TYPES['dynamic']:
self.form = DynamicKnowledgeForm
else:
self.form = TaxonomyKnowledgeForm
form = self.form()
form.kbtype.data = kbtype
return form
def get_query(self):
"""Get query."""
return KnwKB.query
def __init__(self, app, *args, **kwargs):
"""Constructor.
:param app: flask application
"""
super(KnowledgeAdmin, self).__init__(*args, **kwargs)
def register_admin(app, admin):
"""Called on app initialization to register administration interface."""
category = 'Knowledge'
admin.add_view(
KnowledgeAdmin(app, KnwKB, db.session,
name='Knowledge Base', category=category,
endpoint="kb")
)
admin.add_view(
KnwKBRVALAdmin(app, KnwKBRVAL, db.session,
name="Knowledge Mappings", category=category,
endpoint="kbrval")
)

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