Bug 44542 - Fix occurrences of using deprecated AppManager and Application
Fix occurrences of using deprecated AppManager and Application
Product: UCS
Classification: Unclassified
Component: App Center
UCS 4.2
Other Linux
: P5 major (vote)
: UCS 4.3-0-errata
Assigned To: Dirk Wiesenthal
Felix Botner
Depends on: 47072
  Show dependency treegraph
Reported: 2017-05-05 11:58 CEST by Erik Damrose
Modified: 2018-06-06 16:16 CEST (History)
1 user (show)

See Also:
What kind of report is it?: Bug Report
What type of bug is this?: 3: Simply Wrong: The implementation doesn't match the docu
Who will be affected by this bug?: 3: Will affect average number of installed domains
How will those affected feel about the bug?: 2: A Pain – users won’t like this once they notice it
User Pain: 0.103
Enterprise Customer affected?:
School Customer affected?:
ISV affected?:
Waiting Support:
Ticket number:
Bug group (optional): API change, Cleanup, Error handling
Max CVSS v3 score:


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Description Erik Damrose univentionstaff 2017-05-05 11:58:20 CEST

# LEGACY; deprecated, use univention.appcenter.app_cache.Apps()!
class AppManager(object):

The issue is, that calling some AppManager methods now silently returns None instead of throwing an error, and they no longer return the expected result.

After fixing several issues where the class was used in the UCS appliance generation, i checked the svn:
There are several AppManager users in UCS 4.2...

dev/branches/ucs-4.2/ucs-4.2-0$ rgrep AppManager
test/ucs-test/tests/20_appcenter/75_umc_query_app_data:from univention.appcenter import AppManager
test/ucs-test/tests/20_appcenter/75_umc_query_app_data:	AppManager.clear_cache()
test/ucs-test/tests/20_appcenter/75_umc_query_app_data:		AppManager.clear_cache()
base/univention-updater/script/preup.sh:from univention.appcenter.app import AppManager
base/univention-updater/script/preup.sh:for app in AppManager.get_all_locally_installed_apps():
base/univention-updater/python/univention-upgrade:        from univention.appcenter.app import AppManager
base/univention-updater/python/univention-upgrade:        newer_app = AppManager.find_candidate(app)
management/univention-appcenter/python/appcenter/__init__.py:from univention.appcenter.app import App, AppManager
management/univention-appcenter/python/appcenter/__init__.py:__all__ = ('App', 'AppManager', 'get_action', 'all_actions')
management/univention-appcenter/python/appcenter-docker/actions/docker_remove.py:from univention.appcenter.app import AppManager
management/univention-appcenter/python/appcenter-docker/actions/docker_remove.py:			for _app in AppManager.get_all_apps():

I think we should fix all occurrences, because calling some AppManager methods will not fail but silently return None. This changes the behavior of the code.
Comment 1 Erik Damrose univentionstaff 2017-05-10 10:25:20 CEST
I also found that

from univention.management.console.modules.appcenter.app_center import Application

does not find UCS 4.1 docker apps on a UCS 4.2. A quick grep show that is still used in

test/ucs-test/tests/20_appcenter/31_ini_version_check:    App = Application.find(APP_ID)
test/ucs-test/tests/20_appcenter/10_check_apps_ini:        App = Application.find(app_id)
base/univention-updater/script/univention-add-app:			app = Application.find(component_id)
base/univention-updater/script/univention-add-app:		requested_app = Application.find(component_id)
base/univention-updater/script/univention-add-app:		requested_app.versions = Application.find(requested_app.id).versions
management/univention-appcenter/umc/python/appcenter/__init__.py:		application = Application.find(application_id)
management/univention-appcenter/umc/python/appcenter/util.py:	app = Application.find(old_id)
management/univention-appcenter/umc/python/appcenter/util.py:		app = Application.find(new_id)
management/univention-appcenter/umc/python/appcenter/app_center.py:			app = Application.find(self.get('plugin_of'))
management/univention-appcenter/umc/python/appcenter/app_center.py:		apps = [Application.find(app_id) for app_id in self.get('requiredappsindomain')]
Comment 2 Dirk Wiesenthal univentionstaff 2018-05-24 15:56:35 CEST
Fixed in
  univention-appcenter 7.0.1-48A~
  ucs-test 8.0.28-127A~
Comment 3 Felix Botner univentionstaff 2018-05-28 15:08:12 CEST
Comment 4 Erik Damrose univentionstaff 2018-06-06 16:16:20 CEST