odoo/addons/document/dict_tools.py

60 lines
2.0 KiB
Python

# -*- encoding: utf-8 -*-
# Copyright P. Christeas <p_christ@hol.gr> 2008-2010
# Copyright 2010 OpenERP SA. http://www.openerp.com
#
# This program 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; version 2 of the License.
#
# This program 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 General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
###############################################################################
def dict_merge(*dicts):
""" Return a dict with all values of dicts
"""
res = {}
for d in dicts:
res.update(d)
return res
def dict_merge2(*dicts):
""" Return a dict with all values of dicts.
If some key appears twice and contains iterable objects, the values
are merged (instead of overwritten).
"""
res = {}
for d in dicts:
for k in d.keys():
if k in res and isinstance(res[k], (list, tuple)):
res[k] = res[k] + d[k]
elif k in res and isinstance(res[k], dict):
res[k].update(d[k])
else:
res[k] = d[k]
return res
def dict_filter(srcdic, keys, res=None):
''' Return a copy of srcdic that has only keys set.
If any of keys are missing from srcdic, the result won't have them,
either.
@param res If given, result will be updated there, instead of a new dict.
'''
if res is None:
res = {}
for k in keys:
if k in srcdic:
res[k] = srcdic[k]
return res
#eof
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