History¶

GINO 1.0¶

Migrating to GINO 1.0¶

GINO 1.0 moved the built-in Web framework extensions into separate PyPI packages. If you’re using one of them, you should install GINO 1.0 with extras:

Extension Module	Installation in GINO 1.0
`gino.ext.starlette`	`pip install gino[starlette]`
`gino.ext.aiohttp`	`pip install gino[aiohttp]`
`gino.ext.sanic`	`pip install gino[sanic]`
`gino.ext.tornado`	`pip install gino[tornado]`
`gino.ext.quart`	`pip install gino[quart]`

The new extension packages are backward-compatible, so there’s no need to update the import statements. For example, this will still work in GINO 1.0 if you installed gino[starlette]:

from gino.ext.starlette import Gino

GINO 1.0 switched to Poetry for package and dependency management and started to use the src layout. This shouldn’t cause any problem using GINO as a dependency, but it does introduce some changes to the GINO development process:

Source files are now located under src directory.
The src dist on PyPI does not include tests, docs and some other files due to a limitation of Poetry.

1.0.1 (2020-06-08)¶

Fixed dependency version range (SQLAlchemy >=1.2.16, <1.4)
Updated docs (Including contribution by Galden in #660, and Iuliia Volkova in #672)
Multiple JSON property fixes (#661 #662 #695)
Fixed extension typing issue (#673 #674)
Fixed model override behavior (#694)
Fixed multiple JSON profiles issue (Contributed by Roman Averchenkov in #693 #696)

1.0.0 (2020-04-26)¶

Switched to Poetry for package and dependency management.
[Breaking] Moved built-in extension modules to separate PyPI packages.
Switched to src layout.
Switched to black code style.
Better documentation.
[Breaking] none_as_none() is now always enabled.
Added representation method for engine.
Protected the URL instance fed to set_bind() from manipulation.
Replaced some assert with AssertionError (#258 #655)

GINO 0.8¶

This is also version 1.0 release candidate.

Migrating to GINO 0.8¶

1. contextvars¶

We introduced aiocontextvars 0.2.0 which is revamped to be compatible with PEP-567 without manual interference by a few simple implicit patches. To upgrade to GINO 0.8, please remove the enable_inherit() or disable_inherit() calls, because they are the default behavior now thus no longer exist. However, you’ll need to confirm that the event loop in use is always created after importing gino or aiocontextvars, or the patch won’t work correctly.

There is nothing to worry about in Python 3.7.

2. none_as_none¶

When GINO tries to load a row with all NULL values into an instance, it will now by default return None instead of an instance with all None attributes. To recover the default behavior of 0.7, please specify none_as_none(False) in affected model loader.

This is especially applicable to relationship sub-loaders - if the sub-loader found it all NULL, no instance will be set to parent instance. For example:

child = await Child.load(parent=Parent).query.gino.first()

If child.parent_id is NULL in database, then the child instance won’t be called with any setattr(child, 'parent', ...) at all. (If you need child.parent == None in this case, consider setting default value parent = None in child model.)

Please note, it is deprecated to disable none_as_none, and disabling will be removed in GINO 1.0.

0.8.7 (2020-04-19)¶

Improved error handling when attribute names collide (Contributed by Reskov in #637 #638)
Fixed with_bind usability in aiohttp extension (#518)

0.8.6 (2020-02-10)¶

Fixed JSONPathType bind processor for asyncpg (#609)
Allowed for primary keys with different names from the database columns (Contributed by Tiago Requeijo in #599 #600)
Allowed to use simple callable instead of property for one-2-many loading (Contributed by Olexiy in #629)
Added distinct() to Alias (#628)

0.8.5 (2019-11-19)¶

Improved support for __tablename__ in declared_attr (Contributed by Roald Storm in #592)

0.8.4 (2019-11-09)¶

Better loader support for models in subqueries (#573 #585)
Allowed __tablename__ to be a declared_attr (#579 #582)
Fixed Sanic 19.9.0 compatibility (#569)
Added one() and one_or_none() (Contributed by Ilaï Deutel in #577)
Improved Starleet extension compatibility (Contributed by Jim O’Brien in #538)
Fixed Starlette connection release during exceptions issue (Contributed by qulaz in #533)
Fixed server event compatibility with Sanic 19.6.2 (Contributed by Julio Lacerda in #520)
Fixed Grammar (Contributed by Simeon J Morgan in #504)

0.8.3 (2019-06-06)¶

Fixed deprecated warnings in asyncpg dialect and aiohttp (#425)
Customizable db attribute name in aiohttp app instance (#457)
Added Starlette support (#486)

0.8.2 (2019-03-07)¶

Added exception for unknown JSON properties (#406 #408)
Supported Quart 0.7 (#411)
Accepted kwargs for db init in extensions (#407 #427)
Added custom config parameter to aiohttp middleware (Contributed by Michał Dziewulski in #440)
Added NullPool (#437 #441)
Unpinned dependency versions (#447)
Added support for SQLAlchemy 1.3 (#433 #451)

0.8.1 (2018-12-08)¶

Alias supported Label (#365)
Docs update (#308, 4c59ad, #401 by Pascal van Kooten)
Version requirement for SQLAlchemy is updated to >=1.2 (#378 #382)
Added option for SSL in aiohttp extension (Contributed by Martin Zaťko in #387 #393) * And all other extensions (#395)
Supported Tornado 5 (#396, also thanks to Vladimir Goncharov)
Fixed custom JSON/JSONB type support (#402 #403)

(Most fixes done by Tony Wang)

0.8.0 (2018-10-16)¶

Welcome Tony Wang to the maintenance team (#335)
Allowed custom column names (#261 #297)
Allowed column instance in model.load() (Contributed by Jekel in #323)
[Breaking] Upgraded to aiocontextvars 0.2.0 (#333)
Fixed bug that the same empty stack is shared between sub-tasks (#313 #334)
[Breaking] Made none_as_none() the default behavior (#351)
Bug fixes and docs update

GINO 0.7¶

This is also version 1.0 beta 3.

0.7.7 (2018-12-08)¶

Backported fix for custom JSON/JSONB type support (#402 #403)

0.7.6 (2018-08-26)¶

Updated library support (Contributed by Tony Wang in #275 #309)
Added none_as_none() (#281 #282)
Added ARRAY alias in asyncpg dialect module (Contributed by Mykyta Holubakha in #289)
Added Model.lookup() to prevent updating whole table without primary key (#287 #288)
Added DB_ECHO in extension options (Contributed by Mykyta Holubakha in #298)
Fixed broken JSON/JSONB result processor since 0.5.8 (Contributed by Tony Wang in #291 #305)
Removed bad rollback after a failing commit (Contributed by Tony Wang in #302 #304)
Fixed to raise UninitializedError if bind is None (Contributed by Tony Wang in #307 #310)

0.7.5 (2018-07-26)¶

Added friendly error message when using abstract models by mistake (#224)
Supported Python 3.7 (Contributed by Tony Wang in #265)
Updated documentation
Fixed a bug in TupleLoader (Contributed by Pavol Vargovcik in #279 #280)

0.7.4 (2018-06-10)¶

Added aiocontextvars as required dependency required for Python 3.5 and 3.6 (#228)
Added Quart support (#213)
Fixed Tornado options parsing (#231)
Improved coding style and test coverage

0.7.3 (2018-05-19)¶

Fix for failing binary type (#225)

0.7.2 (2018-05-15)¶

Added prepared statement support (#14)
Added dsn in extension config (Contributed by Yurii Shtrikker in #215)

0.7.1 (2018-05-03)¶

Added support for inline model constraints (Contributed by Kinware in #198)
Added docs and tests for using SSL (#202)
Added declared_attr (#204)
Allowed ModelLoader passively load partial model (#216)

0.7.0 (2018-04-18)¶

Added Python 3.5 support (#187)
Added support to use dict as ident for Model.get (#192)
Added result loader (partial relationship support) (#13)
Added documentation on relationship and transaction (#146)

GINO 0.6¶

This is also version 1.0 beta 2.

Migrating to GINO 0.6¶

1. Task Local¶

We created a new Python package aiocontextvars from previous local.py. If you made use of the task local features, you should install this package.

Previous gino.enable_task_local() and gino.disable_task_local() are replaced by aiocontextvars.enable_inherit() and aiocontextvars.disable_inherit(). However in GINO 0.5 they controls the whole task local feature switch, while aiocontextvars by default offers task local even without enable_inherit(), which controls whether the local storage should be passed between chained tasks. When enabled, it behaves the same as enabled in 0.5, but you cannot completely turn off the task local feature while aiocontextvars is installed.

There is no gino.get_local() and gino.reset_local() relevant in aiocontextvars. The similar thing is aiocontextvars.ContextVar instance through its get(), set() and delete() methods.

Previous gino.is_local_root() is now not aiocontextvars.Context.current().inherited.

2. Engine¶

GINO 0.6 hides asyncpg.Pool behind the new SQLAlchemy-alike gino.GinoEngine. Instead of doing this in 0.5:

async with db.create_pool('postgresql://...') as pool:
    # your code here

You should change it to this in 0.6:

async with db.with_bind('postgresql://...') as engine:
    # your code here

This equals to:

engine = await gino.create_engine('postgresql://...')
db.bind = engine
try:
    # your code here
finally:
    db.bind = None
    await engine.close()

Or:

engine = await db.set_bind('postgresql://...')
try:
    # your code here
finally:
    await db.pop_bind().close()

Or even this:

db = await gino.Gino('postgresql://...')
try:
    # your code here
finally:
    await db.pop_bind().close()

Choose whichever suits you the best.

Obviously GinoEngine doesn’t provide asyncpg.Pool methods directly any longer, but you can get the underlying asyncpg.Pool object through engine.raw_pool property.

GinoPool.get_current_connection() is now changed to current_connection property on GinoEngine instances to support multiple engines.

GinoPool.execution_option is gone, instead update_execution_options() on GinoEngine instance is available.

GinoPool().metadata is gone, dialect is still available.

GinoPool.release() is removed in GinoEngine and Gino, the release() method on GinoConnection object should be used instead.

These methods exist both in 0.5 GinoPool and 0.6 GinoEngine: close(), acquire(), all(), first(), scalar(), status().

3. GinoConnection¶

Similarly, GinoConnection in 0.6 is no longer a subclass of asyncpg.Connection, instead it has a asyncpg.Connection instance, accessable through GinoConnection.raw_connection property.

GinoConnection.metadata is deleted in 0.6, while dialect remained.

GinoConnection.execution_options() is changed from a mutable dict in 0.5 to a method returning a copy of current connection with the new options, the same as SQLAlchemy behavior.

GinoConnection.release() is still present, but its default behavior has been changed to permanently release this connection. You should add argument permanent=False to remain its previous behavior.

And all(), first(), scalar(), status(), iterate(), transaction() remained in 0.6.

4. Query API¶

All five query APIs all(), first(), scalar(), status(), iterate() now accept the same parameters as SQLAlchemy execute(), meaning they accept raw SQL text, or multiple sets of parameters for “executemany”. Please note, if the parameters are recognized as “executemany”, none of the methods will return anything. Meanwhile, they no longer accept the parameter bind if they did. Just use the API on the GinoEngine or GinoConnection object instead.

5. Transaction¶

Transaction interface is rewritten. Now in 0.6, a GinoTransaction object is provided consistently from all 3 methods:

async with db.transaction() as tx:
    # within transaction

async with engine.transaction() as tx:
    # within transaction

async with engine.acquire() as conn:
    async with conn.transaction() as tx:
        # within transaction

And different usage with await:

tx = await db.transaction()
try:
    # within transaction
    await tx.commit()
except:
    await tx.rollback()
    raise

The GinoConnection object is available at tx.connection, while underlying transaction object from database driver is available at tx.transaction - for asyncpg it is an asyncpg.transaction.Transaction object.

0.6.6 (2018-05-18)¶

Backported a fix for failing binary type (#225)

0.6.5 (2018-04-18)¶

Abandoned 0.6.4 and keep 0.6.x stable
Backported doc for transaction

0.6.4 (2018-04-16)¶

Abandoned version, please use 0.7.0 instead.

0.6.3 (2018-04-08)¶

Added aiohttp support
Added support for calling create() on model instances (Contributed by Kinware in #178 #180)
Fixed get() by string, and misc environment issues (Contributed by Tony Wang in #191 193 #183 #184)

0.6.2 (2018-03-24)¶

Fixed SQLAlchemy prefetch issue (#141)
Fixed issue that mixin class on Model not working (#174)
Added more documentation (Thanks Olaf Conradi for reviewing)

0.6.1 (2018-03-18)¶

Fixed create and drop for Enum type (#160)
A bit more documentation (#159)

0.6.0 (2018-03-14)¶

[Breaking] API Refactored, Pool replaced with Engine
- New API Engine replaced asyncpg Pool (#59)
- Supported different dialects, theoretically
- Used aiocontextvars instead of builtin task local (#89)
[Breaking] Fixed query API with multiparams (executemany) to return correctly (#20)
[Breaking] The query methods no longer accept the parameter bind
[Breaking] Gino no longer exposes postgresql types
Added echo on engine (#142)
Added tests to cover 80% of code
Added gino extension on SchemaItem for create_all and so on (#76 #106)
Added gino extension on model classes for create() or drop()
Added _update_request_cls on CRUDModel (#147)
Rewrote the documentation (#146)

GINO 0.5¶

This is also version 1.0 beta 1.

0.5.8 (2018-02-14)¶

Preparing for 0.6.0 which will be a breaking release
Fixed wrong value of Enum in creation (Contributed by Sergey Kovalev in #126)

0.5.7 (2017-11-24)¶

This is an emergency fix for 0.5.6.

Fixed broken lazy connection (Contributed by Ádám Barancsuk in #114)
Added Model.outerjoin

0.5.6 (2017-11-23)¶

Changed to use unnamed statement when possible (#80 #90)
Added more example (Contributed by Kentoseth in #109)
Added Model.join and made Model selectable (Contributed by Ádám Barancsuk in #112 #113)

0.5.5 (2017-10-18)¶

Ensured clean connection if transaction acquire fails (Contributed by Vladimir Goncharov in #87)
Added ability to reset local storage (#84)
Fixed bug in JSON property update
Added update chaining feature

0.5.4 (2017-10-04)¶

Updated example (Contributed by Kinware in #75)
Added Model.insert (Contributed by Neal Wang in #63)
Fixed issue that non-lazy acquiring fails dirty (#79)

0.5.3 (2017-09-23)¶

Fixed no module named cutils error (Contributed by Vladimir Goncharov in #73)

0.5.2 (2017-09-10)¶

Added missing driver name on dialect (#67)
Fixed dialect to support native decimal type (#67)

0.5.1 (2017-09-09)¶

This is an emergency fix for 0.5.0.

Reverted the extension, back to pure Python (#60)
Used SQLAlchemy RowProxy
Added first_or_404
Fixed bug that GinoPool cannot be inherited

0.5.0 (2017-09-03)¶

[Breaking] Internal refactor: extracted and isolated a few modules, partially rewritten
- Extracted CRUD operations
- Core operations are moved to dialect and execution context
- Removed guess_model, switched to explicit execution options
- Turned timeout parameter to an execution option
- Extracted pool, connection and api from asyncpg_delegate
Added support for SQLAlchemy execution options, and a few custom options
[Breaking] Made Model.select return rows by default (#39)
Moved get_or_404 to extensions (#38)
Added iterator on model classes (#43)
Added Tornado extension (Contributed by Vladimir Goncharov)
Added Model.to_dict (#47)
Added an extension module to update asyncpg.Record with processed results

Early Development Releases¶

Considered as alpha releases.

0.4.1 (2017-08-20)¶

Support select on model instance

0.4.0 (2017-08-15)¶

Made get_or_404 more friendly when Sanic is missing (Contributed by Neal Wang in #23 #31)
Delegated sqlalchemy.__all__ (Contributed by Neal Wang in #10 #33)
[Breaking] Rewrote JSON/JSONB support (#29)
Added lazy parameter on db.acquire (Contributed by Binghan Li in #32)
Added Sanic integration (Contributed by Binghan Li, Tony Wang in #30 #32 #34)
Fixed iterate API to be compatible with asyncpg (#32)
Unified exceptions
[Breaking] Changed update API (#29)
Bug fixes

0.3.0 (2017-08-07)¶

Supported __table_args__ (#12)
Introduced task local to manage connection in context (#19)
Added query.gino extension for in-place execution
Refreshed README (#3)
Adopted PEP 487 (Contributed by Tony Wang in #17 #27)
Used weakref on __model__ of table and query (Contributed by Tony Wang)
Delegated asyncpg timeout parameter (Contributed by Neal Wang in #16 #22)

0.2.3 (2017-08-04)¶

Supported any primary key (Contributed by Tony Wang in #11)

0.2.2 (2017-08-02)¶

Supported SQLAlchemy result processor
Added rich support on JSON/JSONB
Bug fixes

0.2.1 (2017-07-28)¶

Added update and delete API

0.2.0 (2017-07-28)¶

Changed API, no longer reuses asyncpg API

0.1.1 (2017-07-25)¶

Added db.bind
API changed: parameter conn renamed to optional bind
Delegated asyncpg Pool with db.create_pool
Internal enhancement and bug fixes

0.1.0 (2017-07-21)¶

First release on PyPI.

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