add a new method iter_process_result which does the same as proces_result but is a generator (closes #1625374)
process_result is reimplemented using the new method, and the two helper
methods are turned into generators.
These generators use cursor.fetchmany instead of cursor.fetchall after setting
cursor.arraysize to 100. This means that the whole result set should never
loaded in memory when using the iter_process_result method. This is used in the
"portable" database dump implementation when we typically to 'SELECT * FROM
table', but could probably be used too in other parts of cubicweb.
# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of CubicWeb.
#
# CubicWeb is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 2.1 of the License, or (at your option)
# any later version.
#
# CubicWeb 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 Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with CubicWeb. If not, see <http://www.gnu.org/licenses/>.
"""CubicWeb web client core. You'll need a apache-modpython or twisted
publisher to get a full CubicWeb web application
"""
__docformat__ = "restructuredtext en"
_ = unicode
from urllib import quote as urlquote
from logilab.common.deprecation import deprecated
from cubicweb.web._exceptions import *
from cubicweb.utils import json_dumps
from cubicweb.uilib import eid_param
assert json_dumps is not None, 'no json module installed'
dumps = deprecated('[3.9] use cubicweb.utils.json_dumps instead of dumps')(
json_dumps)
INTERNAL_FIELD_VALUE = '__cubicweb_internal_field__'
class stdmsgs(object):
"""standard ui message (in a class for bw compat)"""
BUTTON_OK = (_('button_ok'), 'OK_ICON')
BUTTON_APPLY = (_('button_apply'), 'APPLY_ICON')
BUTTON_CANCEL = (_('button_cancel'), 'CANCEL_ICON')
BUTTON_DELETE = (_('button_delete'), 'TRASH_ICON')
YES = (_('yes'), None)
NO = (_('no'), None)
from logging import getLogger
LOGGER = getLogger('cubicweb.web')
# XXX deprecated
FACETTES = set()
def jsonize(function):
def newfunc(*args, **kwargs):
value = function(*args, **kwargs)
try:
return json_dumps(value)
except TypeError:
return json_dumps(repr(value))
return newfunc
@deprecated('[3.4] use req.ajax_replace_url() instead')
def ajax_replace_url(nodeid, rql, vid=None, swap=False, **extraparams):
"""builds a replacePageChunk-like url
>>> ajax_replace_url('foo', 'Person P')
"javascript: replacePageChunk('foo', 'Person%20P');"
>>> ajax_replace_url('foo', 'Person P', 'oneline')
"javascript: replacePageChunk('foo', 'Person%20P', 'oneline');"
>>> ajax_replace_url('foo', 'Person P', 'oneline', name='bar', age=12)
"javascript: replacePageChunk('foo', 'Person%20P', 'oneline', {'age':12, 'name':'bar'});"
>>> ajax_replace_url('foo', 'Person P', name='bar', age=12)
"javascript: replacePageChunk('foo', 'Person%20P', 'null', {'age':12, 'name':'bar'});"
"""
params = [repr(nodeid), repr(urlquote(rql))]
if extraparams and not vid:
params.append("'null'")
elif vid:
params.append(repr(vid))
if extraparams:
params.append(json_dumps(extraparams))
if swap:
params.append('true')
return "javascript: replacePageChunk(%s);" % ', '.join(params)