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52c17411bd
2596: db.String without length cause an error in migration for MySQL DB r=mergify[bot] a=csthiang
## What type of PR?
bug-fix
## What does this PR do?
For MySQL, `db.String` requires a length because db.String gets translated to `VARCHAR` in MySQL and `VARCHAR` requires a length. I was considering adding a length to it but since the affected fields were used to store CommaSeparatedList and json-encoded string, I have a feeling it can be quite large in the future. `db.Text` seems to fit into this use case but please correct me if I am wrong.
This actually affects a DB migration with the following error:
```
File "/app/venv/bin/flask", line 8, in <module>
sys.exit(main())
File "/app/venv/lib/python3.10/site-packages/flask/cli.py", line 1047, in main
cli.main()
File "/app/venv/lib/python3.10/site-packages/click/core.py", line 1055, in main
rv = self.invoke(ctx)
File "/app/venv/lib/python3.10/site-packages/click/core.py", line 1657, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/app/venv/lib/python3.10/site-packages/click/core.py", line 1657, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/app/venv/lib/python3.10/site-packages/click/core.py", line 1404, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "/app/venv/lib/python3.10/site-packages/click/core.py", line 760, in invoke
return __callback(*args, **kwargs)
File "/app/venv/lib/python3.10/site-packages/click/decorators.py", line 26, in new_func
return f(get_current_context(), *args, **kwargs)
File "/app/venv/lib/python3.10/site-packages/flask/cli.py", line 357, in decorator
return __ctx.invoke(f, *args, **kwargs)
File "/app/venv/lib/python3.10/site-packages/click/core.py", line 760, in invoke
return __callback(*args, **kwargs)
File "/app/venv/lib/python3.10/site-packages/flask_migrate/cli.py", line 149, in upgrade
_upgrade(directory, revision, sql, tag, x_arg)
File "/app/venv/lib/python3.10/site-packages/flask_migrate/__init__.py", line 98, in wrapped
f(*args, **kwargs)
File "/app/venv/lib/python3.10/site-packages/flask_migrate/__init__.py", line 185, in upgrade
command.upgrade(config, revision, sql=sql, tag=tag)
File "/app/venv/lib/python3.10/site-packages/alembic/command.py", line 322, in upgrade
script.run_env()
File "/app/venv/lib/python3.10/site-packages/alembic/script/base.py", line 569, in run_env
util.load_python_file(self.dir, "env.py")
File "/app/venv/lib/python3.10/site-packages/alembic/util/pyfiles.py", line 94, in load_python_file
module = load_module_py(module_id, path)
File "/app/venv/lib/python3.10/site-packages/alembic/util/pyfiles.py", line 110, in load_module_py
spec.loader.exec_module(module) # type: ignore
File "<frozen importlib._bootstrap_external>", line 883, in exec_module
File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
File "/app/migrations/env.py", line 99, in <module>
run_migrations_online()
File "/app/migrations/env.py", line 92, in run_migrations_online
context.run_migrations()
File "<string>", line 8, in run_migrations
File "/app/venv/lib/python3.10/site-packages/alembic/runtime/environment.py", line 853, in run_migrations
self.get_context().run_migrations(**kw)
File "/app/venv/lib/python3.10/site-packages/alembic/runtime/migration.py", line 623, in run_migrations
step.migration_fn(**kw)
File "/app/migrations/versions/f4f0f89e0047_.py", line 18, in upgrade
with op.batch_alter_table('fetch') as batch:
File "/usr/lib/python3.10/contextlib.py", line 142, in __exit__
next(self.gen)
File "/app/venv/lib/python3.10/site-packages/alembic/operations/base.py", line 381, in batch_alter_table
impl.flush()
File "/app/venv/lib/python3.10/site-packages/alembic/operations/batch.py", line 111, in flush
fn(*arg, **kw)
File "/app/venv/lib/python3.10/site-packages/alembic/ddl/impl.py", line 322, in add_column
self._exec(base.AddColumn(table_name, column, schema=schema))
File "/app/venv/lib/python3.10/site-packages/alembic/ddl/impl.py", line 195, in _exec
return conn.execute(construct, multiparams)
File "/app/venv/lib/python3.10/site-packages/sqlalchemy/engine/base.py", line 1380, in execute
return meth(self, multiparams, params, _EMPTY_EXECUTION_OPTS)
File "/app/venv/lib/python3.10/site-packages/sqlalchemy/sql/ddl.py", line 80, in _execute_on_connection
return connection._execute_ddl(
File "/app/venv/lib/python3.10/site-packages/sqlalchemy/engine/base.py", line 1469, in _execute_ddl
compiled = ddl.compile(
File "/app/venv/lib/python3.10/site-packages/sqlalchemy/sql/elements.py", line 502, in compile
return self._compiler(dialect, **kw)
File "/app/venv/lib/python3.10/site-packages/sqlalchemy/sql/ddl.py", line 32, in _compiler
return dialect.ddl_compiler(dialect, self, **kw)
File "/app/venv/lib/python3.10/site-packages/sqlalchemy/sql/compiler.py", line 463, in __init__
self.string = self.process(self.statement, **compile_kwargs)
File "/app/venv/lib/python3.10/site-packages/sqlalchemy/sql/compiler.py", line 498, in process
return obj._compiler_dispatch(self, **kwargs)
File "/app/venv/lib/python3.10/site-packages/sqlalchemy/ext/compiler.py", line 548, in <lambda>
lambda *arg, **kw: existing(*arg, **kw),
File "/app/venv/lib/python3.10/site-packages/sqlalchemy/ext/compiler.py", line 604, in __call__
expr = fn(element, compiler, **kw)
File "/app/venv/lib/python3.10/site-packages/alembic/ddl/base.py", line 190, in visit_add_column
add_column(compiler, element.column, **kw),
File "/app/venv/lib/python3.10/site-packages/alembic/ddl/base.py", line 330, in add_column
text = "ADD COLUMN %s" % compiler.get_column_specification(column, **kw)
File "/app/venv/lib/python3.10/site-packages/sqlalchemy/dialects/mysql/base.py", line 1714, in get_column_specification
self.dialect.type_compiler.process(
File "/app/venv/lib/python3.10/site-packages/sqlalchemy/sql/compiler.py", line 532, in process
return type_._compiler_dispatch(self, **kw)
File "/app/venv/lib/python3.10/site-packages/sqlalchemy/sql/visitors.py", line 82, in _compiler_dispatch
return meth(self, **kw)
File "/app/venv/lib/python3.10/site-packages/sqlalchemy/sql/compiler.py", line 5028, in visit_type_decorator
return self.process(type_.type_engine(self.dialect), **kw)
File "/app/venv/lib/python3.10/site-packages/sqlalchemy/sql/compiler.py", line 532, in process
return type_._compiler_dispatch(self, **kw)
File "/app/venv/lib/python3.10/site-packages/sqlalchemy/sql/visitors.py", line 82, in _compiler_dispatch
return meth(self, **kw)
File "/app/venv/lib/python3.10/site-packages/sqlalchemy/sql/compiler.py", line 5006, in visit_string
return self.visit_VARCHAR(type_, **kw)
File "/app/venv/lib/python3.10/site-packages/sqlalchemy/dialects/mysql/base.py", line 2214, in visit_VARCHAR
raise exc.CompileError(
sqlalchemy.exc.CompileError: VARCHAR requires a length on dialect mysql
[2022-12-22 09:23:12 +0000] [17] [INFO] Starting gunicorn 20.1.0
[2022-12-22 09:23:12 +0000] [17] [INFO] Listening at: http://0.0.0.0:80 (17)
[2022-12-22 09:23:12 +0000] [17] [INFO] Using worker: gthread
[2022-12-22 09:23:12 +0000] [18] [INFO] Booting worker with pid: 18
```
### Related issue(s)
none
## Prerequisites
Before we can consider review and merge, please make sure the following list is done and checked.
If an entry in not applicable, you can check it or remove it from the list.
- [x] In case of feature or enhancement: documentation updated accordingly
- [x] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/workflow.html#changelog) entry file.
Co-authored-by: Johnson Thiang <jthiang@pop-os.localdomain>
Co-authored-by: Florent Daigniere <nextgens@users.noreply.github.com>
|
2 years ago | |
|---|---|---|
| .github | 2 years ago | |
| core | 2 years ago | |
| design | 3 years ago | |
| docs | 2 years ago | |
| optional | 2 years ago | |
| setup | 2 years ago | |
| tests | 2 years ago | |
| towncrier | 2 years ago | |
| webmails | 2 years ago | |
| .gitignore | 2 years ago | |
| .mergify.yml | 3 years ago | |
| AUTHORS.md | 3 years ago | |
| CHANGELOG.md | 3 years ago | |
| CODE_OF_CONDUCT.md | 7 years ago | |
| CONTRIBUTING.md | 2 years ago | |
| ISSUE_TEMPLATE.md | 2 years ago | |
| LICENSE.md | 8 years ago | |
| PULL_REQUEST_TEMPLATE.md | 3 years ago | |
| README.md | 2 years ago | |
| RELEASE_TEMPLATE.md | 3 years ago | |
| SECURITY.md | 2 years ago | |
| bors.toml | 3 years ago | |
| pyproject.toml | 5 years ago | |
README.md
Mailu is a simple yet full-featured mail server as a set of Docker images. It is free software (both as in free beer and as in free speech), open to suggestions and external contributions. The project aims at providing people with an easily setup, easily maintained and full-featured mail server while not shipping proprietary software nor unrelated features often found in popular groupware.
Most of the documentation is available on our Website, you can also try our demo server before setting up your own, and come talk to us on Matrix.
Features
Main features include:
- Standard email server, IMAP and IMAP+, SMTP and Submission with autoconfiguration profiles for clients
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Contributing
Mailu is free software, open to suggestions and contributions. All components are free software and compatible with the MIT license. All specific configuration files, Dockerfiles and code are placed under the MIT license.