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82 lines
2.8 KiB
82 lines
2.8 KiB
# -*- coding: utf-8 -*-
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###################################################################################
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#
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# Copyright (C) 2018 MuK IT GmbH
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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###################################################################################
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import re
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import hashlib
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import logging
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import psycopg2
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import tempfile
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from odoo import _
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from odoo import models, api, fields
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from odoo.tools import ustr, pycompat, human_size
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_logger = logging.getLogger(__name__)
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class LargeObject(fields.Field):
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type = 'lobject'
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column_type = ('oid', 'oid')
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_slots = {
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'prefetch': False,
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'context_dependent': True,
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}
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def convert_to_column(self, value, record, values=None):
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if not value:
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return None
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lobject = record.env.cr._cnx.lobject(0, 'wb')
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if isinstance(value, bytes):
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lobject.write(value)
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else:
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while True:
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chunk = value.read(4096)
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if not chunk:
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break
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lobject.write(chunk)
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return lobject.oid
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def convert_to_record(self, value, record):
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if value:
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lobject = record.env.cr._cnx.lobject(value, 'rb')
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if record._context.get('bin_size') or record._context.get('bin_size_' + self.name):
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return human_size(lobject.seek(0, 2))
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elif record._context.get('oid'):
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return lobject.oid
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elif record._context.get('stream'):
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file = tempfile.TemporaryFile()
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while True:
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chunk = lobject.read(4096)
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if not chunk:
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file.seek(0)
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return file
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file.write(chunk)
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else:
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return lobject.read()
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return False
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def convert_to_export(self, value, record):
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if value:
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lobject = record.env.cr._cnx.lobject(value, 'rb')
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if record._context.get('export_raw_data'):
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return lobject.read()
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return base64.b64encode(lobject.read())
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return ''
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