Well, it was sqlite! Currently moving to postgresql principally for other
reasons. Thanks anyway for your response!
On Monday, 1 June 2015 05:33:23 UTC+2, Michael Bayer wrote:
>
>
>
> On 5/31/15 7:00 PM, Wavemaker wrote:
>
> Well, upon digging further myself, I noticed that was an old foreign key
> in my Pictures table referring to the non-existant auth_user table:
> sql: "last_changed_user_id" integer NOT NULL REFERENCES "auth_user"
> ("id")
> This was not referenced anymore in the model. So, I guess that in order to
> use alembic properly I should not have manually deleted that table (in fact
> I did that before starting to use alembic), but to remove both the table
> and the foreign key in the model and then let alembic apply both changes to
> the database in one go. Correct?
>
>
> that doesn't make too much sense because a relational database can't have
> a FOREIGN KEY to a table that doesn't exist. *unless* this is SQLite,
> which is just an odd case. feel free to manually delete whatever tables
> you want, you just need to make sure you keep track of what's going on when
> you point a schema reflection tool at that database at some later point.
>
>
> For reference purposes still find here the complete stack trace without
> having the solution applied yet. Note again that I inserted some debug
> statements here and there in the sqlalchemy/alembic code, so line numbers
> may deviate.
>
> Traceback (most recent call last):
> File "virtualenv\Scripts\alembic-script.py", line 11, in <module>
> load_entry_point('alembic==0.7.6', 'console_scripts', 'alembic')()
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\alembi
> c\config.py", line 439, in main
> CommandLine(prog=prog).main(argv=argv)
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\alembi
> c\config.py", line 433, in main
> self.run_cmd(cfg, options)
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\alembi
> c\config.py", line 416, in run_cmd
> **dict((k, getattr(options, k)) for k in kwarg)
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\alembi
> c\command.py", line 113, in revision
> script.run_env()
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\alembi
> c\script.py", line 390, in run_env
> util.load_python_file(self.dir, 'env.py')
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\alembi
> c\util.py", line 243, in load_python_file
> module = load_module_py(module_id, path)
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\alembi
> c\compat.py", line 79, in load_module_py
> mod = imp.load_source(module_id, path, fp)
> File "alembic\env.py", line 99, in <module>
> run_migrations_online()
> File "alembic\env.py", line 92, in run_migrations_online
> context.run_migrations()
> File "<string>", line 7, in run_migrations
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\alembi
> c\environment.py", line 738, in run_migrations
> self.get_context().run_migrations(**kw)
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\alembi
> c\migration.py", line 300, in run_migrations
> for step in self._migrations_fn(heads, self):
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\alembi
> c\command.py", line 95, in retrieve_migrations
> autogen._produce_migration_diffs(context, template_args, imports)
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\alembi
> c\autogenerate\api.py", line 154, in _produce_migration_diffs
> autogen_context, object_filters, include_schemas)
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\alembi
> c\autogenerate\api.py", line 256, in _produce_net_changes
> inspector, metadata, diffs, autogen_context)
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\alembi
> c\autogenerate\compare.py", line 84, in _compare_tables
> inspector.reflecttable(t, None)
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\sqlalc
> hemy\engine\reflection.py", line 590, in reflecttable
> exclude_columns, reflection_options)
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\sqlalc
> hemy\engine\reflection.py", line 720, in _reflect_fk
> **reflection_options
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\sqlalc
> hemy\sql\schema.py", line 441, in __new__
> metadata._remove_table(name, schema)
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\sqlalc
> hemy\util\langhelpers.py", line 60, in __exit__
> compat.reraise(exc_type, exc_value, exc_tb)
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\sqlalc
> hemy\sql\schema.py", line 432, in __new__
> table._init(name, metadata, *args, **kw)
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\sqlalc
> hemy\sql\schema.py", line 513, in _init
> self._autoload(metadata, autoload_with, include_columns)
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\sqlalc
> hemy\sql\schema.py", line 528, in _autoload
> self, include_columns, exclude_columns
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\sqlalc
> hemy\engine\base.py", line 1481, in run_callable
> return callable_(self, *args, **kwargs)
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\sqlalc
> hemy\engine\default.py", line 364, in reflecttable
> return insp.reflecttable(table, include_columns, exclude_columns)
> File "F:\Workspace\MyProject\src\virtualenv\Lib\site-packages\sqlalc
> hemy\engine\reflection.py", line 578, in reflecttable
> raise exc.NoSuchTableError(table.name)
> sqlalchemy.exc.NoSuchTableError: auth_user
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