Django (42000): Ungültige Standardwert für ‚ACTION_TIME‘

Question

Beim Versuch, die Admin-Migrationen zu laufen (0002_logentry_remove_auto_add) erhalte ich die Fehlermeldung:

mysql.connector.errors.ProgrammingError: 1067 (42000): Invalid default value for 'action_time' 

nicht sicher, was ist der Grund dafür habe ich eine Quelle kompilierte Version von mysql (5.5.50) was vielleicht etwas damit zu tun hat.

Django Lauf 1.9.2 mit mysql-connector-Python 2.1.3

bearbeiten Traceback:

Traceback (most recent call last): 
    File "manage.py", line 10, in <module> 
    execute_from_command_line(sys.argv) 
    File "/home/bischoff_s/Code/venvs/gec/lib/python3.5/site-packages/django/core/management/__init__.py", line 353, in execute_from_command_line 
    utility.execute() 
    File "/home/bischoff_s/Code/venvs/gec/lib/python3.5/site-packages/django/core/management/__init__.py", line 345, in execute 
    self.fetch_command(subcommand).run_from_argv(self.argv) 
    File "/home/bischoff_s/Code/venvs/gec/lib/python3.5/site-packages/django/core/management/base.py", line 348, in run_from_argv 
    self.execute(*args, **cmd_options) 
    File "/home/bischoff_s/Code/venvs/gec/lib/python3.5/site-packages/django/core/management/base.py", line 399, in execute 
    output = self.handle(*args, **options) 
    File "/home/bischoff_s/Code/venvs/gec/lib/python3.5/site-packages/django/core/management/commands/migrate.py", line 200, in handle 
    executor.migrate(targets, plan, fake=fake, fake_initial=fake_initial) 
    File "/home/bischoff_s/Code/venvs/gec/lib/python3.5/site-packages/django/db/migrations/executor.py", line 92, in migrate 
    self._migrate_all_forwards(plan, full_plan, fake=fake, fake_initial=fake_initial) 
    File "/home/bischoff_s/Code/venvs/gec/lib/python3.5/site-packages/django/db/migrations/executor.py", line 121, in _migrate_all_forwards 
    state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial) 
    File "/home/bischoff_s/Code/venvs/gec/lib/python3.5/site-packages/django/db/migrations/executor.py", line 198, in apply_migration 
    state = migration.apply(state, schema_editor) 
    File "/home/bischoff_s/Code/venvs/gec/lib/python3.5/site-packages/django/db/migrations/migration.py", line 123, in apply 
    operation.database_forwards(self.app_label, schema_editor, old_state, project_state) 
    File "/home/bischoff_s/Code/venvs/gec/lib/python3.5/site-packages/django/db/migrations/operations/fields.py", line 201, in database_forwards 
    schema_editor.alter_field(from_model, from_field, to_field) 
    File "/home/bischoff_s/Code/venvs/gec/lib/python3.5/site-packages/django/db/backends/base/schema.py", line 482, in alter_field 
    old_db_params, new_db_params, strict) 
    File "/home/bischoff_s/Code/venvs/gec/lib/python3.5/site-packages/django/db/backends/base/schema.py", line 634, in _alter_field 
    params, 
    File "/home/bischoff_s/Code/venvs/gec/lib/python3.5/site-packages/django/db/backends/base/schema.py", line 110, in execute 
    cursor.execute(sql, params) 
    File "/home/bischoff_s/Code/venvs/gec/lib/python3.5/site-packages/django/db/backends/utils.py", line 64, in execute 
    return self.cursor.execute(sql, params) 
    File "/home/bischoff_s/Code/venvs/gec/lib/python3.5/site-packages/mysql/connector/django/base.py", line 227, in execute 
    return self._execute_wrapper(self.cursor.execute, query, new_args) 
    File "/home/bischoff_s/Code/venvs/gec/lib/python3.5/site-packages/mysql/connector/django/base.py", line 180, in _execute_wrapper 
    utils.ProgrammingError(err.msg), sys.exc_info()[2]) 
    File "/home/bischoff_s/Code/venvs/gec/lib/python3.5/site-packages/django/utils/six.py", line 685, in reraise 
    raise value.with_traceback(tb) 
    File "/home/bischoff_s/Code/venvs/gec/lib/python3.5/site-packages/mysql/connector/django/base.py", line 177, in _execute_wrapper 
    return method(query, args) 
    File "/home/bischoff_s/Code/venvs/gec/lib/python3.5/site-packages/mysql/connector/cursor.py", line 515, in execute 
    self._handle_result(self._connection.cmd_query(stmt)) 
    File "/home/bischoff_s/Code/venvs/gec/lib/python3.5/site-packages/mysql/connector/connection.py", line 488, in cmd_query 
    result = self._handle_result(self._send_cmd(ServerCmd.QUERY, query)) 
    File "/home/bischoff_s/Code/venvs/gec/lib/python3.5/site-packages/mysql/connector/connection.py", line 395, in _handle_result 
    raise errors.get_exception(packet) 
django.db.utils.ProgrammingError: Invalid default value for 'action_time' 

bearbeiten Mehr:

ipdb> stmt 
b"ALTER TABLE `django_admin_log` ALTER COLUMN `action_time` SET DEFAULT '2016-07-25 17:58:03.214262+00:00'" 
ipdb> self._connection.cmd_query(stmt) 
*** mysql.connector.errors.ProgrammingError: 1067 (42000): Invalid default value for 'action_time' 

Ich bin nicht sicher, warum die Datenbank diese Daten nicht als gültigen Standard übernehmen ...

Answer 1

Also mysql-Connector-Python ist tot (für mich), alle Hagel mysqlclient. Anscheinend wird es nicht mehr gepflegt. Ich wechselte zu mysqlclient und es hatte keine Probleme.

Answer 2

Etwas ist hier als Standardungeradean MySQL übergeben enthält Mikrosekunden, auch wenn it doesn't support it.

Ich nehme an, dies ist ein Problem mit Ihrem Datenbanktreiber, wie es von Stripping Mikrosekunden allein nehmen sollte.