mirror of https://github.com/muk-it/muk_base
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
98 lines
3.5 KiB
98 lines
3.5 KiB
###################################################################################
|
|
#
|
|
# Copyright (c) 2017-2019 MuK IT GmbH.
|
|
#
|
|
# This file is part of MuK Large Objects Field
|
|
# (see https://mukit.at).
|
|
#
|
|
# 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, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# 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 Lesser General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
###################################################################################
|
|
|
|
import base64
|
|
import hashlib
|
|
import logging
|
|
import binascii
|
|
import tempfile
|
|
|
|
from odoo import fields
|
|
from odoo.tools import human_size
|
|
|
|
_logger = logging.getLogger(__name__)
|
|
|
|
class LargeObject(fields.Field):
|
|
|
|
type = 'lobject'
|
|
column_type = ('oid', 'oid')
|
|
_slots = {
|
|
'prefetch': False,
|
|
'context_dependent': True,
|
|
}
|
|
|
|
def convert_to_column(self, value, record, values=None, validate=True):
|
|
oid = record.with_context({'oid': True})[self.name]
|
|
if oid:
|
|
record.env.cr._cnx.lobject(oid, 'rb').unlink()
|
|
if not value:
|
|
return None
|
|
lobject = record.env.cr._cnx.lobject(0, 'wb')
|
|
if isinstance(value, bytes):
|
|
lobject.write(value)
|
|
elif isinstance(value, str):
|
|
lobject.write(base64.b64decode(value))
|
|
else:
|
|
while True:
|
|
chunk = value.read(4096)
|
|
if not chunk:
|
|
break
|
|
lobject.write(chunk)
|
|
return lobject.oid
|
|
|
|
def convert_to_record(self, value, record):
|
|
if value and isinstance(value, int):
|
|
lobject = record.env.cr._cnx.lobject(value, 'rb')
|
|
if record._context.get('human_size'):
|
|
return human_size(lobject.seek(0, 2))
|
|
elif record._context.get('bin_size'):
|
|
return lobject.seek(0, 2)
|
|
elif record._context.get('oid'):
|
|
return lobject.oid
|
|
elif record._context.get('base64'):
|
|
return base64.b64encode(lobject.read())
|
|
elif record._context.get('stream'):
|
|
file = tempfile.TemporaryFile()
|
|
while True:
|
|
chunk = lobject.read(4096)
|
|
if not chunk:
|
|
file.seek(0)
|
|
return file
|
|
file.write(chunk)
|
|
elif record._context.get('checksum'):
|
|
checksum = hashlib.sha1()
|
|
while True:
|
|
chunk = lobject.read(4096)
|
|
if not chunk:
|
|
return checksum.hexdigest()
|
|
checksum.update(chunk)
|
|
else:
|
|
return lobject.read()
|
|
return value
|
|
|
|
def convert_to_export(self, value, record):
|
|
if value:
|
|
lobject = record.env.cr._cnx.lobject(value, 'rb')
|
|
if record._context.get('export_raw_data'):
|
|
return lobject.read()
|
|
return base64.b64encode(lobject.read())
|
|
return ''
|