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repo_groups: fix deletion of subgroups
Deletion of a repository group that has a parent group (i.e. is not at the
root of the repository group tree) failed as follows:
Traceback (most recent call last):
[...]
File ".../lib/python3.9/site-packages/tg/configurator/components/dispatch.py", line 114, in _call_controller
return controller(*remainder, **params)
File "<decorator-gen-5>", line 2, in delete
File "/home/tdescham/repo/contrib/kallithea/kallithea-release/kallithea/lib/auth.py", line 572, in __wrapper
return func(*fargs, **fkwargs)
File "/home/tdescham/repo/contrib/kallithea/kallithea-release/kallithea/controllers/admin/repo_groups.py", line 271, in delete
if gr.parent_group:
File ".../lib/python3.9/site-packages/sqlalchemy/orm/attributes.py", line 294, in __get__
return self.impl.get(instance_state(instance), dict_)
File ".../lib/python3.9/site-packages/sqlalchemy/orm/attributes.py", line 730, in get
value = self.callable_(state, passive)
File ".../lib/python3.9/site-packages/sqlalchemy/orm/strategies.py", line 717, in _load_for_state
raise orm_exc.DetachedInstanceError(
sqlalchemy.orm.exc.DetachedInstanceError: Parent instance <RepoGroup at 0x7f1f2664f4c0> is not bound to a Session; lazy load operation of attribute 'parent_group' cannot proceed (Background on this error at: http://sqlalche.me/e/13/bhk3)
In the reference 'gr.parent_group', 'gr' is an SQLAlchemy object referring
to the group being deleted, and 'gr.parent_group' is a lazy reference to its
parent group. The 'lazy' means that the parent group object is not loaded
automatically when 'gr' is assigned, but instead will be loaded on-the-fly
when the parent group is actually accessed. See [1] and [2] for more
information.
The problem was that the lazy 'parent_group' attribute was accessed _after_
deleting the database object it was part of.
Fix this by obtaining a handle to the parent group _before_ deleting the
subgroup.
Reported-by: André Klitzing (via mailing list)
[1] https://docs.sqlalchemy.org/en/13/errors.html#error-bhk3
[2] https://docs.sqlalchemy.org/en/13/orm/loading_relationships.html
Deletion of a repository group that has a parent group (i.e. is not at the
root of the repository group tree) failed as follows:
Traceback (most recent call last):
[...]
File ".../lib/python3.9/site-packages/tg/configurator/components/dispatch.py", line 114, in _call_controller
return controller(*remainder, **params)
File "<decorator-gen-5>", line 2, in delete
File "/home/tdescham/repo/contrib/kallithea/kallithea-release/kallithea/lib/auth.py", line 572, in __wrapper
return func(*fargs, **fkwargs)
File "/home/tdescham/repo/contrib/kallithea/kallithea-release/kallithea/controllers/admin/repo_groups.py", line 271, in delete
if gr.parent_group:
File ".../lib/python3.9/site-packages/sqlalchemy/orm/attributes.py", line 294, in __get__
return self.impl.get(instance_state(instance), dict_)
File ".../lib/python3.9/site-packages/sqlalchemy/orm/attributes.py", line 730, in get
value = self.callable_(state, passive)
File ".../lib/python3.9/site-packages/sqlalchemy/orm/strategies.py", line 717, in _load_for_state
raise orm_exc.DetachedInstanceError(
sqlalchemy.orm.exc.DetachedInstanceError: Parent instance <RepoGroup at 0x7f1f2664f4c0> is not bound to a Session; lazy load operation of attribute 'parent_group' cannot proceed (Background on this error at: http://sqlalche.me/e/13/bhk3)
In the reference 'gr.parent_group', 'gr' is an SQLAlchemy object referring
to the group being deleted, and 'gr.parent_group' is a lazy reference to its
parent group. The 'lazy' means that the parent group object is not loaded
automatically when 'gr' is assigned, but instead will be loaded on-the-fly
when the parent group is actually accessed. See [1] and [2] for more
information.
The problem was that the lazy 'parent_group' attribute was accessed _after_
deleting the database object it was part of.
Fix this by obtaining a handle to the parent group _before_ deleting the
subgroup.
Reported-by: André Klitzing (via mailing list)
[1] https://docs.sqlalchemy.org/en/13/errors.html#error-bhk3
[2] https://docs.sqlalchemy.org/en/13/orm/loading_relationships.html
51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 abb83e4edfd9 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 abb83e4edfd9 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 51af7c12ffb1 | #!/usr/bin/env python3
"""
pyflakes with filter configuration for Kallithea.
Inspired by pyflakes/api.py and flake8/plugins/pyflakes.py .
"""
import sys
import pyflakes.api
import pyflakes.messages
class Reporter:
warned = False
def flake(self, warning):
# ignore known warnings
if isinstance(warning, pyflakes.messages.UnusedVariable):
return
if warning.filename == 'kallithea/bin/kallithea_cli_ishell.py':
if isinstance(warning, pyflakes.messages.ImportStarUsed) and warning.message_args == ('kallithea.model.db',):
return
if isinstance(warning, pyflakes.messages.UnusedImport) and warning.message_args == ('kallithea.model.db.*',):
return
print('%s:%s %s [%s %s]' % (warning.filename, warning.lineno, warning.message % warning.message_args, type(warning).__name__, warning.message_args))
self.warned = True
def unexpectedError(self, filename, msg):
print('Unexpected error for %s: %s' % (filename, msg))
reporter = Reporter()
for filename in sorted(set(sys.argv[1:])):
pyflakes.api.checkPath(filename, reporter=reporter)
if reporter.warned:
raise SystemExit(1)
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