[FIX] Change "env" for "cr" due odoo restriction on 18.0

Author: nicomacr

base/18.0.0.0/pre-0-disable-check-company.py

@@ -0,0 +1,21 @@
+from odoo.models import BaseModel
+import logging
+_logger = logging.getLogger(__name__)
+
+
+_original_check_company = BaseModel._check_company
+
+
+def _check_company(self, fnames=None):
+    """ Patch chec_check_company to avoid any error when run scripts, we enable later """
+    try:
+        _original_check_company
+    except Exception as e:
+        _logger.warning('incompatible companies. This is what we get:\n%s', e)
+
+
+BaseModel._check_company = _check_company
+
+
+def migrate(cr, version):
+    pass

base/18.0.0.0/pre-0-disable-check-views.py

@@ -0,0 +1,21 @@
+from odoo.addons.base.models.ir_ui_view import View
+import logging
+_logger = logging.getLogger(__name__)
+
+
+_original_check_xml = View._check_xml
+
+
+def _check_xml(self):
+    """ Patch check_xml to avoid any error when loading views, we check them later """
+    try:
+        _original_check_xml
+    except Exception as e:
+        _logger.warning('Invalid view definition. This is what we get:\n%s', e)
+
+
+View._check_xml = _check_xml
+
+
+def migrate(cr, version):
+    pass

base/18.0.0.0/pre-0-model-checks.py

@@ -0,0 +1,25 @@
+from odoo import api, models
+
+from odoo.addons.base.models.ir_model import (
+    IrModelSelection,
+)
+
+
+def _process_ondelete(self):
+    """Don't break on missing models when deleting their selection fields"""
+    to_process = self.browse([])
+    for selection in self:
+        try:
+            self.env[selection.field_id.model]  # pylint: disable=pointless-statement
+            to_process += selection
+        except KeyError:
+            continue
+    return IrModelSelection._process_ondelete._original_method(to_process)
+
+
+_process_ondelete._original_method = IrModelSelection._process_ondelete
+IrModelSelection._process_ondelete = _process_ondelete
+
+
+def migrate(cr, version):
+    pass