* Fixed regression caused by SQLAlchemy 1.4 where the "alembic current"
command would fail due to changes in the ``URL`` object.
* Add async template to Alembic to bootstrap environments that use
async DBAPI. Updated the cookbook to include a migration guide
on how to adapt an existing enviroment for use with DBAPI drivers.
* Fixed bug in versioning model where a downgrade across a revision with a
dependency on another branch, yet an ancestor is also dependent on that
branch, would produce an erroneous state in the alembic_version table,
making upgrades impossible without manually repairing the table.
* Changed the default ordering of "CREATE" and "DROP" statements indexes and
unique constraints within the autogenerate process, so that for example in
an upgrade() operation, a particular index or constraint that is to be
replaced such as for a casing convention change will not produce any naming
conflicts.
* Fixed issue where autogenerate rendering of ``op.alter_column()`` would
fail to include MySQL ``existing_nullable=False`` if the column were part
of a primary key constraint within the table metadata.
* Added support for rendering of "identity" elements on
:class:`.Column` objects, supported in SQLAlchemy via
the :class:`.Identity` element introduced in version 1.4.
* Adding columns with identity is supported on PostgreSQL,
MSSQL and Oracle. Changing the identity options or removing
it is supported only on PostgreSQL and Oracle.
* To accommodate SQLAlchemy 1.4 and 2.0, the migration model now no longer
assumes that the SQLAlchemy Connection will autocommit an individual
operation.
* Modified the ``add_column()`` operation such that the ``Column`` object in
use is shallow copied to a new instance if that ``Column`` is already
attached to a ``table()`` or ``Table``.
* Added rendering for the ``Table.prefixes`` element to autogenerate so that
the rendered Python code includes these directives.
* Alembic 1.5.0 now supports **Python 2.7 and Python 3.6 and above**, as well
as **SQLAlchemy 1.3.0 and above**.
* Add ``__main__.py`` file to alembic package to support invocation
with ``python -m alembic``.
* Removed deprecated ``--head_only`` option to the ``alembic current``
command
- Drop pytest_depr_from_parent.patch, pytest plugin no longer used.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-alembic?expand=0&rev=117
* bugs
+ Reverted the name change of the “revisions” argument to
command.stamp() to “revision” as apparently applications are
calling upon this argument as a keyword name. Pull request
courtesy Thomas Bechtold. Special translations are also added
to the command line interface so that it is still known
as “revisions” in the CLI.
References: #601
+ Removed the “test requirements” from “setup.py test”, as
this command now only emits a removal error in any case
and these requirements are unused.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-alembic?expand=0&rev=96
* Fixed issue where server default comparison on the PostgreSQL dialect would
fail for a blank string on Python 3.7 only, due to a change in regular
expression behavior in Python 3.7.
* Removed use of deprecated ``force`` parameter for SQLAlchemy quoting
functions as this parameter will be removed in a future release.
Pull request courtesy Parth Shandilya(ParthS007).
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-alembic?expand=0&rev=84
+ Render autogenerate=True if present Fixed issue where
"autoincrement=True" would not render for a column that specified
it, since as of SQLAlchemy 1.1 this is no longer the default value
for "autoincrement".
+ Make call to declarative_base clear in example.
+ Use external impl for type rendering The render_type() method of
DefaultImpl was hardcoded to only work for SQLAlchemy types.
+ Implement native boolean check constraint flag in test suite
+ Use repr for drop_constraint schema
+ Add recipe for generating Python code for existing tables
* The ScriptDirectory system that loads migration files from a
* [feature] Added -r argument to alembic history command, allows specification of [start]:[end] to view a slice of history.
* [feature] Source base is now in-place for Python 2.6 through 3.3,
without the need for 2to3.
+ added Operations.create_primary_key() operation, will genenerate an
+ Explicit error message describing the case when downgrade --sql
+ [feature] New config argument
is run, to support script.py.mako templates with
to the template context when running the
MySQL. CHECK and undefined raise an error.
identifiers, i.e. "alembic upgrade +2",
"alembic downgrade -1". Courtesy
+ [bug] Fixed bug whereby directories inside of
on Pypy, would mistakenly be interpreted as
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-alembic?expand=0&rev=65
- update to 0.8.7:
- Fixed bug where upgrading to the head of a branch which is already
present would fail, only if that head were also the dependency
of a different branch that is also upgraded, as the revision system
would see this as trying to go in the wrong direction. The check
here has been refined to distinguish between same-branch revisions
out of order vs. movement along sibling branches.
- Adjusted the version traversal on downgrade
such that we can downgrade to a version that is a dependency for
a version in a different branch, *without* needing to remove that
dependent version as well. Previously, the target version would be
seen as a "merge point" for it's normal up-revision as well as the
dependency. This integrates with the changes for 🎫`377`
and 🎫`378` to improve treatment of branches with dependencies
overall.
- Fixed bug where a downgrade to a version that is also a dependency
to a different branch would fail, as the system attempted to treat
this as an "unmerge" of a merge point, when in fact it doesn't have
the other side of the merge point available for update.
- Fixed bug where the "alembic current" command wouldn't show a revision
as a current head if it were also a dependency of a version in a
different branch that's also applied. Extra logic is added to
extract "implied" versions of different branches from the top-level
versions listed in the alembic_version table.
- Fixed bug where a repr() or str() of a Script object would fail
if the script had multiple dependencies.
- Fixed bug in autogen where if the DB connection sends the default
schema as "None", this "None" would be removed from the list of
schemas to check if include_schemas were set. This could possibly
impact using include_schemas with SQLite.
OBS-URL: https://build.opensuse.org/request/show/419376
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-alembic?expand=0&rev=51
- update to 0.8.6:
- Errors which occur within the Mako render step are now intercepted
and raised as CommandErrors like other failure cases; the Mako
exception itself is written using template-line formatting to
a temporary file which is named in the exception message.
- Added a fix to Postgresql server default comparison which first checks
if the text of the default is identical to the original, before attempting
to actually run the default. This accomodates for default-generation
functions that generate a new value each time such as a uuid function.
- Fixed bug introduced by the fix for 🎫`338` in version 0.8.4
where a server default could no longer be dropped in batch mode.
Pull request courtesy Martin Domke.
- Fixed bug where SQL Server arguments for drop_column() would not
be propagated when running under a batch block. Pull request
courtesy Michal Petrucha.
OBS-URL: https://build.opensuse.org/request/show/400005
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-alembic?expand=0&rev=48
- update to 0.8.5:
- Fixed bug where the columns rendered in a ``PrimaryKeyConstraint``
in autogenerate would inappropriately render the "key" of the
column, not the name. Pull request courtesy Jesse Dhillon.
- Repaired batch migration support for "schema" types which generate
constraints, in particular the ``Boolean`` datatype which generates
a CHECK constraint. Previously, an alter column operation with this
type would fail to correctly accommodate for the CHECK constraint
on change both from and to this type. In the former case the operation
would fail entirely, in the latter, the CHECK constraint would
not get generated. Both of these issues are repaired.
- Changing a schema type such as ``Boolean`` to a non-schema type would
emit a drop constraint operation which emits ``NotImplementedError`` for
the MySQL dialect. This drop constraint operation is now skipped when
the constraint originates from a schema type.
- A major improvement to the hash id generation function, which for some
reason used an awkward arithmetic formula against uuid4() that produced
values that tended to start with the digits 1-4. Replaced with a
simple substring approach which provides an even distribution. Pull
request courtesy Antti Haapala.
- Added an autogenerate renderer for the :class:`.ExecuteSQLOp` operation
object; only renders if given a plain SQL string, otherwise raises
NotImplementedError. Can be of help with custom autogenerate
sequences that includes straight SQL execution. Pull request courtesy
Jacob Magnusson.
- Batch mode generates a FOREIGN KEY constraint that is self-referential
using the ultimate table name, rather than ``_alembic_batch_temp``.
When the table is renamed from ``_alembic_batch_temp`` back to the
original name, the FK now points to the right name. This
will **not** work if referential integrity is being enforced (eg. SQLite
OBS-URL: https://build.opensuse.org/request/show/385578
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-alembic?expand=0&rev=46
- update to 0.8.2:
- Added workaround in new foreign key option detection feature for MySQL’s
consideration of the “RESTRICT” option being the default, for which no
value is reported from the database; the MySQL impl now corrects for when
the model reports RESTRICT but the database reports nothing. A similar
rule is in the default FK comparison to accommodate for the default
“NO ACTION” setting being present in the model but not necessarily
reported by the database, or vice versa.
- A custom EnvironmentContext.configure.process_revision_directives hook
can now generate op directives within the UpgradeOps and DowngradeOps
containers that will be generated as Python code even when the
--autogenerate flag is False; provided that revision_environment=True,
the full render operation will be run even in “offline” mode.
- Implemented support for autogenerate detection of changes in the ondelete,
onupdate, initially and deferrable attributes of ForeignKeyConstraint
objects on SQLAlchemy backends that support these on reflection (as of
SQLAlchemy 1.0.8 currently Postgresql for all four, MySQL for ondelete
and onupdate only). A constraint object that modifies these values will
be reported as a “diff” and come out as a drop/create of the constraint
with the modified values. The fields are ignored for backends which
don’t reflect these attributes (as of SQLA 1.0.8 this includes SQLite,
Oracle, SQL Server, others).
- Repaired the render operation for the ops.AlterColumnOp object to succeed
when the “existing_type” field was not present.
- Fixed a regression 0.8 whereby the “multidb” environment template failed
to produce independent migration script segments for the output template.
This was due to the reorganization of the script rendering system for 0.8.
To accommodate this change, the MigrationScript structure will in the case
of multiple calls to MigrationContext.run_migrations() produce lists for
the MigrationScript.upgrade_ops and MigrationScript.downgrade_ops attributes;
OBS-URL: https://build.opensuse.org/request/show/327176
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-alembic?expand=0&rev=44
- update to 0.8.0:
- Added new command alembic edit. This command takes the same arguments
as alembic show, however runs the target script file within $EDITOR.
Makes use of the python-editor library in order to facilitate the
handling of $EDITOR with reasonable default behaviors across platforms.
Pull request courtesy Michel Albert.
- Added new multiple-capable argument --depends-on to the alembic revision
command, allowing depends_on to be established at the command line level
rather than having to edit the file after the fact. depends_on identifiers
may also be specified as branch names at the command line or directly
within the migration file. The values may be specified as partial
revision numbers from the command line which will be resolved to full
revision numbers in the output file.
- The default test runner via “python setup.py test” is now py.test.
nose still works via run_tests.py.
- The internal system for Alembic operations has been reworked to now
build upon an extensible system of operation objects. New operations can
be added to the op. namespace, including that they are available in custom
autogenerate schemes.
- The internal system for autogenerate been reworked to build upon the
extensible system of operation objects present in #302. As part of this
change, autogenerate now produces a full object graph representing a list
of migration scripts to be written as well as operation objects that will
render all the Python code within them; a new hook
EnvironmentContext.configure.process_revision_directives allows end-user
code to fully customize what autogenerate will do, including not just
full manipulation of the Python steps to take but also what file or files
will be written and where. Additionally, autogenerate is now extensible as
far as database objects compared and rendered into scripts; any new
operation directive can also be registered into a series of hooks that
OBS-URL: https://build.opensuse.org/request/show/325796
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-alembic?expand=0&rev=43
- update to 0.7.6:
* Fixed bug where the case of multiple mergepoints that all
have the identical set of ancestor revisions would fail to be
upgradable, producing an assertion failure.
* Added support for type comparison functions to be not just per
environment, but also present on the custom types themselves, by
supplying a method ``compare_against_backend``.
* Fully implemented the :paramref:`~.Operations.batch_alter_table.copy_from`
parameter for batch mode
* Repaired support for the :meth:`.BatchOperations.create_index`
directive, which was mis-named internally such that the operation
OBS-URL: https://build.opensuse.org/request/show/311291
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-alembic?expand=0&rev=38
- update to 0.7.3:
* Fixed regression in new versioning system where upgrade / history
operation would fail on AttributeError if no version files were
present at all.
* Adjusted the SQLite backend regarding autogen of unique constraints
to work fully with the current SQLAlchemy 1.0, which now will report
on UNIQUE constraints that have no name.
* Fixed bug in batch where if the target table contained multiple
foreign keys to the same target table, the batch mechanics would
fail with a "table already exists" error. Thanks for the help
on this from Lucas Kahlert.
* Fixed an issue where the MySQL routine to skip foreign-key-implicit
indexes would also catch unnamed unique indexes, as they would be
named after the column and look like the FK indexes. Pull request
courtesy Johannes Erdfelt.
* Repaired a regression in both the MSSQL and Oracle dialects whereby
the overridden ``_exec()`` method failed to return a value, as is
needed now in the 0.7 series.
* The ``render_as_batch`` flag was inadvertently hardcoded to ``True``,
so all autogenerates were spitting out batch mode...this has been
fixed so that batch mode again is only when selected in env.py.
* Support for autogenerate of FOREIGN KEY constraints has been added.
These are delivered within the autogenerate process in the same
manner as UNIQUE constraints, including ``include_object`` support.
Big thanks to Ann Kamyshnikova for doing the heavy lifting here.
* Fixed bug where the "source_schema" argument was not correctly passed
when calling :meth:`.BatchOperations.create_foreign_key`. Pull
request courtesy Malte Marquarding.
* The "multiple heads / branches" feature has now landed. This is
by far the most significant change Alembic has seen since its inception;
OBS-URL: https://build.opensuse.org/request/show/267253
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-alembic?expand=0&rev=32
