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* Warn when declared_attr.cascading detected on mapped classMike Bayer2017-06-062-2/+39
| | | | | | | | | | | | | | A warning is emitted if the :attr:`.declared_attr.cascading` modifier is used with a declarative attribute that is itself declared on a class that is to be mapped, as opposed to a declarative mixin class or ``__abstract__`` class. The :attr:`.declared_attr.cascading` modifier currently only applies to mixin/abstract classes. Also add a test for @declared_attr.cascading when used on an attribute on __abstract__. Change-Id: Ib1b9dbe373e8be1cf24eadfed224a8988b3cd95d Fixes: #3847
* Don't hard-evaluate non-ORM @declared_attr for AbstractConcreteBaseMike Bayer2017-05-261-0/+63
| | | | | | | | | | | | | | | | Fixed bug where using :class:`.declared_attr` on an :class:`.AbstractConcreteBase` where a particular return value were some non-mapped symbol, including ``None``, would cause the attribute to hard-evaluate just once and store the value to the object dictionary, not allowing it to invoke for subclasses. This behavior is normal when :class:`.declared_attr` is on a mapped class, and does not occur on a mixin or abstract class. Since :class:`.AbstractConcreteBase` is both "abstract" and actually "mapped", a special exception case is made here so that the "abstract" behavior takes precedence for :class:`.declared_attr`. Change-Id: I6160ebb3a52c441d6a4b663c8c9bbac6d37fa417 Fixes: #3848
* Make all tests to be PEP8 compliantKhairi Hafsham2017-02-073-3/+3
| | | | | | | | tested using pycodestyle version 2.2.0 Fixes: #3885 Change-Id: I5df43adc3aefe318f9eeab72a078247a548ec566 Pull-request: https://github.com/zzzeek/sqlalchemy/pull/343
* Union the exclude_properties of the inheriting mapper in declarativeMike Bayer2017-01-301-1/+38
| | | | | | | | | | Fixed bug where the "automatic exclude" feature of declarative that ensures a column local to a single table inheritance subclass does not appear as an attribute on other derivations of the base would not take effect for multiple levels of subclassing from the base. Change-Id: Ibf67b631b4870dd1bd159f7d6085549d299fffe0 Fixes: #3895
* Support python3.6Mike Bayer2017-01-131-2/+2
| | | | | | | | | | | Corrects some warnings and adds tox config. Adds DeprecationWarning to the error category. Large sweep for string literals w/ backslashes as this is common in docstrings Co-authored-by: Andrii Soldatenko Fixes: #3886 Change-Id: Ia7c838dfbbe70b262622ed0803d581edc736e085 Pull-request: https://github.com/zzzeek/sqlalchemy/pull/337
* Add the "triggering mapper" to the configure_mappers error message.John Perkins2016-09-201-3/+4
| | | | | | | | | | There are cases where the originating mapper name is not present in the exception message, such as relationship initialization against an unmapped class. Ensure the originating mapper is named in the string output. Pull-request: https://github.com/zzzeek/sqlalchemy/pull/298 Change-Id: I9f23bfa90b26dde9229ab7ec812eec9ceae48153
* Repair foreign_keys population for Join._refresh_for_new_columnMike Bayer2016-09-151-1/+51
| | | | | | | | | | Fixed bug where setting up a single-table inh subclass of a joined-table subclass which included an extra column would corrupt the foreign keys collection of the mapped table, thereby interfering with the initialization of relationships. Change-Id: I04a0cf98fd456d12d5a5b9e77a46a01246969a63 Fixes: #3797
* Add docstring to declarative_baseFrazer McLean2016-08-061-0/+9
| | | | | Change-Id: I5ad44362515908592f1e8b1e6254a5270d43234a Pull-request: https://github.com/zzzeek/sqlalchemy/pull/295
* Deprecate Mapper.order_byMike Bayer2016-04-191-2/+2
| | | | | | | | | | | This is an old parameter no longer relevant to how SQLAlchemy works, once the Query object was introduced. By deprecating it we establish that we aren't supporting non-working use cases and that we encourage applications to move off of the use of this parameter. Fixes: #3394 Change-Id: I25b9a38142a1537bbcb27d3e8b66a8b265140072
* py2k: accept unicode literals on :func:`backref`, toopr/212Nils Philippsen2015-11-251-0/+23
| | | | | | | | Fixed bug where in Py2K a unicode literal would not be accepted as the string name of a class or other argument within declarative using :func:`.backref` on :func:`.relationship`. amends commit e6f67f48054d906856f879bc1803ea639aa4b670
* - exclude this from unpredictable gcMike Bayer2015-10-111-1/+1
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* - The system by which a :class:`.Column` considers itself to be anMike Bayer2015-10-071-2/+1
| | | | | | | | | | | | | | | | | "auto increment" column has been changed, such that autoincrement is no longer implicitly enabled for a :class:`.Table` that has a composite primary key. In order to accommodate being able to enable autoincrement for a composite PK member column while at the same time maintaining SQLAlchemy's long standing behavior of enabling implicit autoincrement for a single integer primary key, a third state has been added to the :paramref:`.Column.autoincrement` parameter ``"auto"``, which is now the default. fixes #3216 - The MySQL dialect no longer generates an extra "KEY" directive when generating CREATE TABLE DDL for a table using InnoDB with a composite primary key with AUTO_INCREMENT on a column that isn't the first column; to overcome InnoDB's limitation here, the PRIMARY KEY constraint is now generated with the AUTO_INCREMENT column placed first in the list of columns.
* - Fixed bug in :class:`.AbstractConcreteBase` extension whereMike Bayer2015-07-131-0/+30
| | | | | | | | | a column setup on the ABC base which had a different attribute name vs. column name would not be correctly mapped on the final base class. The failure on 0.9 would be silent whereas on 1.0 it raised an ArgumentError, so may not have been noticed prior to 1.0. fixes #3480
* - Fixed a regression regarding the :meth:`.MapperEvents.instrument_class`Mike Bayer2015-04-261-1/+30
| | | | | | | | | | | | | | | | | event where its invocation was moved to be after the class manager's instrumentation of the class, which is the opposite of what the documentation for the event explicitly states. The rationale for the switch was due to Declarative taking the step of setting up the full "instrumentation manager" for a class before it was mapped for the purpose of the new ``@declared_attr`` features described in :ref:`feature_3150`, but the change was also made against the classical use of :func:`.mapper` for consistency. However, SQLSoup relies upon the instrumentation event happening before any instrumentation under classical mapping. The behavior is reverted in the case of classical and declarative mapping, the latter implemented by using a simple memoization without using class manager. fixes #3388
* - Fixed regression regarding the declarative ``__declare_first__``Mike Bayer2015-04-242-2/+88
| | | | | | and ``__declare_last__`` accessors where these would no longer be called on the superclass of the declarative base. fixes #3383
* - The "auto-attach" feature of constraints such as :class:`.UniqueConstraint`Mike Bayer2015-03-241-0/+35
| | | | | | | | | | and :class:`.CheckConstraint` has been further enhanced such that when the constraint is associated with non-table-bound :class:`.Column` objects, the constraint will set up event listeners with the columns themselves such that the constraint auto attaches at the same time the columns are associated with the table. This in particular helps in some edge cases in declarative but is also of general use. fixes #3341
* - Loosened some restrictions that were added to ``@declared_attr``Mike Bayer2015-03-181-0/+33
| | | | | | | | | | | | | objects, such that they were prevented from being called outside of the declarative process; this is related to the enhancements of #3150 which allow ``@declared_attr`` to return a value that is cached based on the current class as it's being configured. The exception raise has been removed, and the behavior changed so that outside of the declarative process, the function decorated by ``@declared_attr`` is called every time just like a regular ``@property``, without using any caching, as none is available at this stage. fixes #3331
* - Fixed bug where using an ``__abstract__`` mixin in the middleMike Bayer2015-03-101-0/+41
| | | | | | | of a declarative inheritance hierarchy would prevent attributes and configuration being correctly propagated from the base class to the inheriting class. fixes #3219 fixes #3240
* - repair issue in declared_attr.cascading such that within aMike Bayer2015-02-241-0/+53
| | | | | | | | | subclass, the value returned by the descriptor is not available because the superclass is already mapped with the InstrumentedAttribute, until the subclass is mapped. We add a setattr() to set up that attribute so that the __mapper_args__ hook and possibly others have access to the "cascaded" version of the attribute within the call.
* - Fixed "'NoneType' object has no attribute 'concrete'" errorMike Bayer2014-10-061-0/+29
| | | | | | when using :class:`.AbstractConcreteBase` in conjunction with a subclass that declares ``__abstract__``. fixes #3185
* - refactor of declarative, break up into indiviudal methodsMike Bayer2014-09-252-5/+281
| | | | | | | | | | | | | | | | | | | | | | | that are now affixed to _MapperConfig - declarative now creates column copies ahead of time so that they are ready to go for a declared_attr - overhaul of declared_attr; memoization, cascading modifier - A relationship set up with :class:`.declared_attr` on a :class:`.AbstractConcreteBase` base class will now be configured on the abstract base mapping automatically, in addition to being set up on descendant concrete classes as usual. fixes #2670 - The :class:`.declared_attr` construct has newly improved behaviors and features in conjunction with declarative. The decorated function will now have access to the final column copies present on the local mixin when invoked, and will also be invoked exactly once for each mapped class, the returned result being memoized. A new modifier :attr:`.declared_attr.cascading` is added as well. fixes #3150 - the original plan for #3150 has been scaled back; by copying mixin columns up front and memoizing, we don't actually need the "map properties later" thing. - full docs + migration notes
* - flake8 all of test/ext/declarativeMike Bayer2014-09-235-427/+543
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* - Fixed bug when the declarative ``__abstract__`` flag was not beingMike Bayer2014-06-251-1/+24
| | | | | | | distinguished for when it was actually the value ``False``. The ``__abstract__`` flag needs to acutally evaluate to a True value at the level being tested. fixes #3097
* - Additional checks have been added for the case where an inheritingMike Bayer2014-06-201-1/+1
| | | | | | | | | | mapper is implicitly combining one of its column-based attributes with that of the parent, where those columns normally don't necessarily share the same value. This is an extension of an existing check that was added via :ticket:`1892`; however this new check emits only a warning, instead of an exception, to allow for applications that may be relying upon the existing behavior. fixes #3042
* - The ``__mapper_args__`` dictionary is copied from a declarativeMike Bayer2014-05-301-0/+27
| | | | | | | | | mixin or abstract class when accessed, so that modifications made to this dictionary by declarative itself won't conflict with that of other mappings. The dictionary is modified regarding the ``version_id_col`` and ``polymorphic_on`` arguments, replacing the column within with the one that is officially mapped to the local class/table. fixes #3062
* Fix many typos throughout the codebasepr/85Alex Gaynor2014-04-262-2/+2
| | | | Found using: https://github.com/intgr/topy
* - Fixed bug where :class:`.AbstractConcreteBase` would fail to beMike Bayer2014-02-111-0/+78
| | | | | | | | | | | | | | | | | | | | | fully usable within declarative relationship configuration, as its string classname would not be available in the registry of classnames at mapper configuration time. The class now explicitly adds itself to the class regsitry, and additionally both :class:`.AbstractConcreteBase` as well as :class:`.ConcreteBase` set themselves up *before* mappers are configured within the :func:`.configure_mappers` setup, using the new :meth:`.MapperEvents.before_configured` event. [ticket:2950] - Added new :meth:`.MapperEvents.before_configured` event which allows an event at the start of :func:`.configure_mappers`, as well as ``__declare_first__()`` hook within declarative to complement ``__declare_last__()``. - modified how after_configured is invoked; we just make a dispatch() not actually connected to any mapper. this makes it easier to also invoke before_configured correctly. - improved the ComparableEntity fixture to handle collections that are sets.
* - Support is improved for supplying a :func:`.join` construct as theMike Bayer2014-01-221-0/+40
| | | | | | | | | | target of :paramref:`.relationship.secondary` for the purposes of creating very complex :func:`.relationship` join conditions. The change includes adjustments to query joining, joined eager loading to not render a SELECT subquery, changes to lazy loading such that the "secondary" target is properly included in the SELECT, and changes to declarative to better support specification of a join() object with classes as targets.
* - Fixed an extremely unlikely memory issue where when usingMike Bayer2014-01-031-2/+18
| | | | | | | | | | :class:`.DeferredReflection` to define classes pending for reflection, if some subset of those classes were discarded before the :meth:`.DeferredReflection.prepare` method were called to reflect and map the class, a strong reference to the class would remain held within the declarative internals. This internal collection of "classes to map" now uses weak references against the classes themselves.
* - A quasi-regression where apparently in 0.8 you can set a class-levelMike Bayer2014-01-021-1/+59
| | | | | | | | | | | attribute on declarative to simply refer directly to an :class:`.InstrumentedAttribute` on a superclass or on the class itself, and it acts more or less like a synonym; in 0.9, this fails to set up enough bookkeeping to keep up with the more liberalized backref logic from :ticket:`2789`. Even though this use case was never directly considered, it is now detected by declarative at the "setattr()" level as well as when setting up a subclass, and the mirrored/renamed attribute is now set up as a :func:`.synonym` instead. [ticket:2900]
* - Declarative does an extra check to detect if the sameMike Bayer2013-12-271-0/+33
| | | | | | | :class:`.Column` is mapped multiple times under different properties (which typically should be a :func:`.synonym` instead) or if two or more :class:`.Column` objects are given the same name, raising a warning if this condition is detected. [ticket:2828]
* - Error message when a string arg sent to :func:`.relationship` whichMike Bayer2013-12-121-0/+32
| | | | | | | doesn't resolve to a class or mapper has been corrected to work the same way as when a non-string arg is received, which indicates the name of the relationship which had the configurational error. [ticket:2888]
* - The :class:`.DeferredReflection` class has been enhanced to provideMike Bayer2013-12-031-29/+83
| | | | | | | | | | | | | | | | automatic reflection support for the "secondary" table referred to by a :func:`.relationship`. "secondary", when specified either as a string table name, or as a :class:`.Table` object with only a name and :class:`.MetaData` object will also be included in the reflection process when :meth:`.DeferredReflection.prepare` is called. [ticket:2865] - clsregistry._resolver() now uses a stateful _class_resolver() class in order to handle the work of mapping strings to objects. This is to provide for simpler extensibility, namely a ._resolvers collection of ad-hoc name resolution functions; the DeferredReflection class adds its own resolver here in order to handle relationship(secondary) names which generate new Table objects.
* Fixed bug where in Py2K a unicode literal would not be acceptedMike Bayer2013-11-291-1/+21
| | | | | as the string name of a class or other argument within declarative using :func:`.relationship`.
* - A rework to the way that "quoted" identifiers are handled, in thatMike Bayer2013-08-271-2/+4
| | | | | | | | | | | | | | | | instead of relying upon various ``quote=True`` flags being passed around, these flags are converted into rich string objects with quoting information included at the point at which they are passed to common schema constructs like :class:`.Table`, :class:`.Column`, etc. This solves the issue of various methods that don't correctly honor the "quote" flag such as :meth:`.Engine.has_table` and related methods. The :class:`.quoted_name` object is a string subclass that can also be used explicitly if needed; the object will hold onto the quoting preferences passed and will also bypass the "name normalization" performed by dialects that standardize on uppercase symbols, such as Oracle, Firebird and DB2. The upshot is that the "uppercase" backends can now work with force-quoted names, such as lowercase-quoted names and new reserved words. [ticket:2812]
* - apply an import refactoring to the ORM as wellMike Bayer2013-08-141-2/+2
| | | | | | | | | - rework the event system so that event modules load after their targets, dependencies are reversed - create an improved strategy lookup system for the ORM - rework the ORM to have very few import cycles - move out "importlater" to just util.dependency - other tricks to cross-populate modules in as clear a way as possible
* ORM descriptors such as hybrid properties can now be referencedMike Bayer2013-07-021-2/+37
| | | | | | by name in a string argument used with ``order_by``, ``primaryjoin``, or similar in :func:`.relationship`, in addition to column-bound attributes. [ticket:2761]
* extension testsMike Bayer2013-05-261-3/+3
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* - the raw 2to3 runMike Bayer2013-04-274-21/+20
| | | | - went through examples/ and cleaned out excess list() calls
* formattingMike Bayer2013-04-241-47/+48
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* Fixed indirect regression regarding :func:`.has_inherited_table`,Mike Bayer2013-04-091-1/+42
| | | | | | | | | | | where since it considers the current class' ``__table__``, was sensitive to when it was called. This is 0.7's behavior also, but in 0.7 things tended to "work out" within events like ``__mapper_args__()``. :func:`.has_inherited_table` now only considers superclasses, so should return the same answer regarding the current class no matter when it's called (obviously assuming the state of the superclass). [ticket:2656]
* Allow use of synonyms in primaryjoin / secondaryjoin conditionsRichard Mitchell2012-11-271-1/+40
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* - store only MultipleClassMarkers inside of ModuleMarker, thenMike Bayer2012-10-281-7/+44
| | | | | | store ModuleMarkers for multiple roots, one for each token in a module path. this allows partial path resolution. - docs to this effect
* trying different approaches to test layout. in this one, the testing modulesMike Bayer2012-09-275-22/+22
| | | | | | | become an externally usable package but still remains within the main sqlalchemy parent package. in this system, we use kind of an ugly hack to get the noseplugin imported outside of the "sqlalchemy" package, while still making it available within sqlalchemy for usage by third party libraries.
* - [bug] Fixed a disconnect that slowly evolvedMike Bayer2012-09-141-6/+65
| | | | | | | | | | | between a @declared_attr Column and a directly-defined Column on a mixin. In both cases, the Column will be applied to the declared class' table, but not to that of a joined inheritance subclass. Previously, the directly-defined Column would be placed on both the base and the sub table, which isn't typically what's desired. [ticket:2565]
* - add req's for predictable gcMike Bayer2012-09-051-0/+2
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* oops, one moreMike Bayer2012-08-291-0/+2
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* - skip this on oracleMike Bayer2012-08-291-0/+2
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* - [feature] declared_attr can now be used withMike Bayer2012-08-271-0/+56
| | | | | | attributes that are not Column or MapperProperty; including any user-defined value as well as association proxy objects. [ticket:2517]
* - [feature] Conflicts between columns onMike Bayer2012-08-273-20/+133
| | | | | | | single-inheritance declarative subclasses, with or without using a mixin, can be resolved using a new @declared_attr usage described in the documentation. [ticket:2472]
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