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https://github.com/camptocamp/odoo-cloud-platform.git
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Get OVH modules from 10.0
This commit is contained in:
jcoux
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from . import ir_attachment
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# -*- coding: utf-8 -*-
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# Copyright 2017 Camptocamp SA
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# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html)
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import inspect
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import logging
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import os
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import psycopg2
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import odoo
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from contextlib import closing, contextmanager
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from odoo import api, exceptions, models, _
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_logger = logging.getLogger(__name__)
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def clean_fs(files):
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_logger.info('cleaning old files from filestore')
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for full_path in files:
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if os.path.exists(full_path):
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try:
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os.unlink(full_path)
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except OSError:
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_logger.info(
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"_file_delete could not unlink %s",
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full_path, exc_info=True
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)
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except IOError:
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# Harmless and needed for race conditions
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_logger.info(
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"_file_delete could not unlink %s",
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full_path, exc_info=True
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)
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class IrAttachment(models.Model):
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_inherit = 'ir.attachment'
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_local_fields = ('image_small', 'image_medium', 'web_icon_data')
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@api.cr
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def _register_hook(self):
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super(IrAttachment, self)._register_hook()
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# ignore if we are not using an object storage
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if self._storage() not in self._get_stores():
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return
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curframe = inspect.currentframe()
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calframe = inspect.getouterframes(curframe, 2)
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# the caller of _register_hook is 'load_modules' in
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# odoo/modules/loading.py
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load_modules_frame = calframe[1][0]
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# 'update_module' is an argument that 'load_modules' receives with a
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# True-ish value meaning that an install or upgrade of addon has been
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# done during the initialization. We need to move the attachments that
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# could have been created or updated in other addons before this addon
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# was loaded
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update_module = load_modules_frame.f_locals.get('update_module')
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# We need to call the migration on the loading of the model because
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# when we are upgrading addons, some of them might add attachments.
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# To be sure they are migrated to the storage we need to call the
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# migration here.
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# Typical example is images of ir.ui.menu which are updated in
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# ir.attachment at every upgrade of the addons
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if update_module:
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self.env['ir.attachment'].sudo()._force_storage_to_object_storage()
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@api.multi
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def _save_in_db_anyway(self):
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""" Return whether an attachment must be stored in db
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When we are using an Object Store. This is sometimes required
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because the object storage is slower than the database/filesystem.
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We store image_small and image_medium from 'Binary' fields
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because they should be fast to read as they are often displayed
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in kanbans / lists. The same for web_icon_data.
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We store the assets locally as well. Not only for performance,
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but also because it improves the portability of the database:
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when assets are invalidated, they are deleted so we don't have
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an old database with attachments pointing to deleted assets.
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"""
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self.ensure_one()
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# assets
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if self.res_model == 'ir.ui.view':
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# assets are stored in 'ir.ui.view'
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return True
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# Binary fields
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if self.res_field:
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# Binary fields are stored with the name of the field in
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# 'res_field'
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# 'image' fields can be rather large and should usually
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# not be requests in bulk in lists
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if self.res_field and self.res_field in self._local_fields:
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return True
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return False
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def _inverse_datas(self):
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# override in order to store files that need fast access,
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# we keep them in the database instead of the object storage
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location = self._storage()
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for attach in self:
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if location in self._get_stores() and attach._save_in_db_anyway():
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# compute the fields that depend on datas
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value = attach.datas
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bin_data = value and value.decode('base64') or ''
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vals = {
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'file_size': len(bin_data),
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'checksum': self._compute_checksum(bin_data),
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'db_datas': value,
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# we seriously don't need index content on those fields
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'index_content': False,
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'store_fname': False,
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}
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fname = attach.store_fname
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# write as superuser, as user probably does not
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# have write access
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super(IrAttachment, attach.sudo()).write(vals)
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if fname:
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self._file_delete(fname)
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continue
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super(IrAttachment, attach)._inverse_datas()
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@api.model
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def _file_read(self, fname, bin_size=False):
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if self._is_file_from_a_store(fname):
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return self._store_file_read(fname, bin_size=bin_size)
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else:
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_super = super(IrAttachment, self)
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return _super._file_read(fname, bin_size=bin_size)
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def _store_file_read(self, fname, bin_size=False):
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storage = fname.partition('://')[0]
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raise NotImplementedError(
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'No implementation for %s' % (storage,)
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)
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def _store_file_write(self, key, bin_data):
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raise NotImplementedError(
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'No implementation for %s' % (self.storage(),)
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)
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def _store_file_delete(self, fname):
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storage = fname.partition('://')[0]
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raise NotImplementedError(
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'No implementation for %s' % (storage,)
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)
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@api.model
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def _file_write(self, value, checksum):
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if self._storage() in self._get_stores():
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bin_data = value.decode('base64')
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key = self._compute_checksum(bin_data)
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filename = self._store_file_write(key, bin_data)
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else:
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filename = super(IrAttachment, self)._file_write(value, checksum)
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return filename
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@api.model
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def _file_delete(self, fname):
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if self._is_file_from_a_store(fname):
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cr = self.env.cr
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# using SQL to include files hidden through unlink or due to record
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# rules
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cr.execute("SELECT COUNT(*) FROM ir_attachment "
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"WHERE store_fname = %s", (fname,))
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count = cr.fetchone()[0]
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if not count:
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self._store_file_delete(fname)
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else:
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super(IrAttachment, self)._file_delete(fname)
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@api.model
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def _is_file_from_a_store(self, fname):
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for store_name in self._get_stores():
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uri = '{}://'.format(store_name)
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if fname.startswith(uri):
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return True
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return False
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@contextmanager
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def do_in_new_env(self, new_cr=False):
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""" Context manager that yields a new environment
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Using a new Odoo Environment thus a new PG transaction.
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"""
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with api.Environment.manage():
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if new_cr:
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registry = odoo.modules.registry.RegistryManager.get(
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self.env.cr.dbname
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)
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with closing(registry.cursor()) as cr:
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try:
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yield self.env(cr=cr)
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except:
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cr.rollback()
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raise
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else:
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# disable pylint error because this is a valid commit,
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# we are in a new env
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cr.commit() # pylint: disable=invalid-commit
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else:
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# make a copy
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yield self.env()
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@api.multi
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def _move_attachment_to_store(self):
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self.ensure_one()
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_logger.info('inspecting attachment %s (%d)', self.name, self.id)
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fname = self.store_fname
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if fname:
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# migrating from filesystem filestore
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# or from the old 'store_fname' without the bucket name
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_logger.info('moving %s on the object storage', fname)
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self.write({'datas': self.datas,
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# this is required otherwise the
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# mimetype gets overriden with
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# 'application/octet-stream'
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# on assets
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'mimetype': self.mimetype})
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_logger.info('moved %s on the object storage', fname)
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return self._full_path(fname)
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elif self.db_datas:
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_logger.info('moving on the object storage from database')
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self.write({'datas': self.datas})
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@api.model
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def force_storage(self):
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if not self.env['res.users'].browse(self.env.uid)._is_admin():
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raise exceptions.AccessError(
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_('Only administrators can execute this action.'))
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storage = self._storage()
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if storage not in self._get_stores():
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return super(IrAttachment, self).force_storage()
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self._force_storage_to_object_storage()
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@api.model
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def _force_storage_to_object_storage(self, new_cr=False):
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_logger.info('migrating files to the object storage')
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storage = self._storage()
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# The weird "res_field = False OR res_field != False" domain
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# is required! It's because of an override of _search in ir.attachment
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# which adds ('res_field', '=', False) when the domain does not
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# contain 'res_field'.
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# https://github.com/odoo/odoo/blob/9032617120138848c63b3cfa5d1913c5e5ad76db/odoo/addons/base/ir/ir_attachment.py#L344-L347
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domain = ['!', ('store_fname', '=like', '{}://%'.format(storage)),
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'|',
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('res_field', '=', False),
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('res_field', '!=', False)]
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# We do a copy of the environment so we can workaround the cache issue
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# below. We do not create a new cursor by default because it causes
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# serialization issues due to concurrent updates on attachments during
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# the installation
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with self.do_in_new_env(new_cr=new_cr) as new_env:
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model_env = new_env['ir.attachment']
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ids = model_env.search(domain).ids
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files_to_clean = []
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for attachment_id in ids:
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try:
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with new_env.cr.savepoint():
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# check that no other transaction has
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# locked the row, don't send a file to storage
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# in that case
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self.env.cr.execute("SELECT id "
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"FROM ir_attachment "
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"WHERE id = %s "
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"FOR UPDATE NOWAIT",
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(attachment_id,),
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log_exceptions=False)
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# This is a trick to avoid having the 'datas'
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# function fields computed for every attachment on
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# each iteration of the loop. The former issue
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# being that it reads the content of the file of
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# ALL the attachments on each loop.
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new_env.clear()
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attachment = model_env.browse(attachment_id)
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path = attachment._move_attachment_to_store()
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if path:
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files_to_clean.append(path)
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except psycopg2.OperationalError:
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_logger.error('Could not migrate attachment %s to S3',
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attachment_id)
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def clean():
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clean_fs(files_to_clean)
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# delete the files from the filesystem once we know the changes
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# have been committed in ir.attachment
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if files_to_clean:
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new_env.cr.after('commit', clean)
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def _get_stores(self):
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""" To get the list of stores activated in the system """
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return []
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