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* Implement new ClauseElement role and coercion systemMike Bayer2019-05-181-1/+10
| | | | | | | | | | | | | | | | | | | | A major refactoring of all the functions handle all detection of Core argument types as well as perform coercions into a new class hierarchy based on "roles", each of which identify a syntactical location within a SQL statement. In contrast to the ClauseElement hierarchy that identifies "what" each object is syntactically, the SQLRole hierarchy identifies the "where does it go" of each object syntactically. From this we define a consistent type checking and coercion system that establishes well defined behviors. This is a breakout of the patch that is reorganizing select() constructs to no longer be in the FromClause hierarchy. Also includes a rename of as_scalar() into scalar_subquery(); deprecates automatic coercion to scalar_subquery(). Partially-fixes: #4617 Change-Id: I26f1e78898693c6b99ef7ea2f4e7dfd0e8e1a1bd
* Post black reformattingMike Bayer2019-01-061-1/+4
| | | | | | | | | | | | | Applied on top of a pure run of black -l 79 in I7eda77fed3d8e73df84b3651fd6cfcfe858d4dc9, this set of changes resolves all remaining flake8 conditions for those codes we have enabled in setup.cfg. Included are resolutions for all remaining flake8 issues including shadowed builtins, long lines, import order, unused imports, duplicate imports, and docstring issues. Change-Id: I4f72d3ba1380dd601610ff80b8fb06a2aff8b0fe
* Run black -l 79 against all source filesMike Bayer2019-01-061-11/+6
| | | | | | | | | | | | | | This is a straight reformat run using black as is, with no edits applied at all. The black run will format code consistently, however in some cases that are prevalent in SQLAlchemy code it produces too-long lines. The too-long lines will be resolved in the following commit that will resolve all remaining flake8 issues including shadowed builtins, long lines, import order, unused imports, duplicate imports, and docstring issues. Change-Id: I7eda77fed3d8e73df84b3651fd6cfcfe858d4dc9
* Make all tests to be PEP8 compliantKhairi Hafsham2017-02-071-1/+0
| | | | | | | | tested using pycodestyle version 2.2.0 Fixes: #3885 Change-Id: I5df43adc3aefe318f9eeab72a078247a548ec566 Pull-request: https://github.com/zzzeek/sqlalchemy/pull/343
* Spelling fixesVille Skyttä2016-10-081-1/+1
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* Check for __clause_element__() in ORM insert/updateMike Bayer2016-10-051-0/+10
| | | | | | | | | | | | | | | | ORM attributes can now be assigned any object that is has a ``__clause_element__()`` attribute, which will result in inline SQL the way any :class:`.ClauseElement` class does. This covers other mapped attributes not otherwise transformed by further expression constructs. As part of this, it was considered that we could add __clause_element__() to ClauseElement, however this causes endless loops in a "while" pattern and this pattern has been identified in third party libraries. Add a test to ensure we never make that change. Change-Id: I9e15b3f1c4883fd3909acbf7dc81d034c6e3ce1d Fixes: #3802
* - update the flake8 rules againMike Bayer2014-07-181-5/+6
| | | | - apply autopep8 + manual fixes to most of test/sql/
* trying different approaches to test layout. in this one, the testing modulesMike Bayer2012-09-271-2/+2
| | | | | | | 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.
* - document the inspection systemMike Bayer2012-07-181-0/+33
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