From 12cf076118570eebbff08c6b3090e0d4798447a1 Mon Sep 17 00:00:00 2001 From: cyfraeviolae Date: Wed, 3 Apr 2024 03:17:55 -0400 Subject: no venv --- .../sqlalchemy/dialects/sqlite/dml.py | 240 --------------------- 1 file changed, 240 deletions(-) delete mode 100644 venv/lib/python3.11/site-packages/sqlalchemy/dialects/sqlite/dml.py (limited to 'venv/lib/python3.11/site-packages/sqlalchemy/dialects/sqlite/dml.py') diff --git a/venv/lib/python3.11/site-packages/sqlalchemy/dialects/sqlite/dml.py b/venv/lib/python3.11/site-packages/sqlalchemy/dialects/sqlite/dml.py deleted file mode 100644 index dcf5e44..0000000 --- a/venv/lib/python3.11/site-packages/sqlalchemy/dialects/sqlite/dml.py +++ /dev/null @@ -1,240 +0,0 @@ -# dialects/sqlite/dml.py -# Copyright (C) 2005-2024 the SQLAlchemy authors and contributors -# -# -# This module is part of SQLAlchemy and is released under -# the MIT License: https://www.opensource.org/licenses/mit-license.php -from __future__ import annotations - -from typing import Any - -from .._typing import _OnConflictIndexElementsT -from .._typing import _OnConflictIndexWhereT -from .._typing import _OnConflictSetT -from .._typing import _OnConflictWhereT -from ... import util -from ...sql import coercions -from ...sql import roles -from ...sql._typing import _DMLTableArgument -from ...sql.base import _exclusive_against -from ...sql.base import _generative -from ...sql.base import ColumnCollection -from ...sql.base import ReadOnlyColumnCollection -from ...sql.dml import Insert as StandardInsert -from ...sql.elements import ClauseElement -from ...sql.elements import KeyedColumnElement -from ...sql.expression import alias -from ...util.typing import Self - -__all__ = ("Insert", "insert") - - -def insert(table: _DMLTableArgument) -> Insert: - """Construct a sqlite-specific variant :class:`_sqlite.Insert` - construct. - - .. container:: inherited_member - - The :func:`sqlalchemy.dialects.sqlite.insert` function creates - a :class:`sqlalchemy.dialects.sqlite.Insert`. This class is based - on the dialect-agnostic :class:`_sql.Insert` construct which may - be constructed using the :func:`_sql.insert` function in - SQLAlchemy Core. - - The :class:`_sqlite.Insert` construct includes additional methods - :meth:`_sqlite.Insert.on_conflict_do_update`, - :meth:`_sqlite.Insert.on_conflict_do_nothing`. - - """ - return Insert(table) - - -class Insert(StandardInsert): - """SQLite-specific implementation of INSERT. - - Adds methods for SQLite-specific syntaxes such as ON CONFLICT. - - The :class:`_sqlite.Insert` object is created using the - :func:`sqlalchemy.dialects.sqlite.insert` function. - - .. versionadded:: 1.4 - - .. seealso:: - - :ref:`sqlite_on_conflict_insert` - - """ - - stringify_dialect = "sqlite" - inherit_cache = False - - @util.memoized_property - def excluded( - self, - ) -> ReadOnlyColumnCollection[str, KeyedColumnElement[Any]]: - """Provide the ``excluded`` namespace for an ON CONFLICT statement - - SQLite's ON CONFLICT clause allows reference to the row that would - be inserted, known as ``excluded``. This attribute provides - all columns in this row to be referenceable. - - .. tip:: The :attr:`_sqlite.Insert.excluded` attribute is an instance - of :class:`_expression.ColumnCollection`, which provides an - interface the same as that of the :attr:`_schema.Table.c` - collection described at :ref:`metadata_tables_and_columns`. - With this collection, ordinary names are accessible like attributes - (e.g. ``stmt.excluded.some_column``), but special names and - dictionary method names should be accessed using indexed access, - such as ``stmt.excluded["column name"]`` or - ``stmt.excluded["values"]``. See the docstring for - :class:`_expression.ColumnCollection` for further examples. - - """ - return alias(self.table, name="excluded").columns - - _on_conflict_exclusive = _exclusive_against( - "_post_values_clause", - msgs={ - "_post_values_clause": "This Insert construct already has " - "an ON CONFLICT clause established" - }, - ) - - @_generative - @_on_conflict_exclusive - def on_conflict_do_update( - self, - index_elements: _OnConflictIndexElementsT = None, - index_where: _OnConflictIndexWhereT = None, - set_: _OnConflictSetT = None, - where: _OnConflictWhereT = None, - ) -> Self: - r""" - Specifies a DO UPDATE SET action for ON CONFLICT clause. - - :param index_elements: - A sequence consisting of string column names, :class:`_schema.Column` - objects, or other column expression objects that will be used - to infer a target index or unique constraint. - - :param index_where: - Additional WHERE criterion that can be used to infer a - conditional target index. - - :param set\_: - A dictionary or other mapping object - where the keys are either names of columns in the target table, - or :class:`_schema.Column` objects or other ORM-mapped columns - matching that of the target table, and expressions or literals - as values, specifying the ``SET`` actions to take. - - .. versionadded:: 1.4 The - :paramref:`_sqlite.Insert.on_conflict_do_update.set_` - parameter supports :class:`_schema.Column` objects from the target - :class:`_schema.Table` as keys. - - .. warning:: This dictionary does **not** take into account - Python-specified default UPDATE values or generation functions, - e.g. those specified using :paramref:`_schema.Column.onupdate`. - These values will not be exercised for an ON CONFLICT style of - UPDATE, unless they are manually specified in the - :paramref:`.Insert.on_conflict_do_update.set_` dictionary. - - :param where: - Optional argument. If present, can be a literal SQL - string or an acceptable expression for a ``WHERE`` clause - that restricts the rows affected by ``DO UPDATE SET``. Rows - not meeting the ``WHERE`` condition will not be updated - (effectively a ``DO NOTHING`` for those rows). - - """ - - self._post_values_clause = OnConflictDoUpdate( - index_elements, index_where, set_, where - ) - return self - - @_generative - @_on_conflict_exclusive - def on_conflict_do_nothing( - self, - index_elements: _OnConflictIndexElementsT = None, - index_where: _OnConflictIndexWhereT = None, - ) -> Self: - """ - Specifies a DO NOTHING action for ON CONFLICT clause. - - :param index_elements: - A sequence consisting of string column names, :class:`_schema.Column` - objects, or other column expression objects that will be used - to infer a target index or unique constraint. - - :param index_where: - Additional WHERE criterion that can be used to infer a - conditional target index. - - """ - - self._post_values_clause = OnConflictDoNothing( - index_elements, index_where - ) - return self - - -class OnConflictClause(ClauseElement): - stringify_dialect = "sqlite" - - constraint_target: None - inferred_target_elements: _OnConflictIndexElementsT - inferred_target_whereclause: _OnConflictIndexWhereT - - def __init__( - self, - index_elements: _OnConflictIndexElementsT = None, - index_where: _OnConflictIndexWhereT = None, - ): - if index_elements is not None: - self.constraint_target = None - self.inferred_target_elements = index_elements - self.inferred_target_whereclause = index_where - else: - self.constraint_target = self.inferred_target_elements = ( - self.inferred_target_whereclause - ) = None - - -class OnConflictDoNothing(OnConflictClause): - __visit_name__ = "on_conflict_do_nothing" - - -class OnConflictDoUpdate(OnConflictClause): - __visit_name__ = "on_conflict_do_update" - - def __init__( - self, - index_elements: _OnConflictIndexElementsT = None, - index_where: _OnConflictIndexWhereT = None, - set_: _OnConflictSetT = None, - where: _OnConflictWhereT = None, - ): - super().__init__( - index_elements=index_elements, - index_where=index_where, - ) - - if isinstance(set_, dict): - if not set_: - raise ValueError("set parameter dictionary must not be empty") - elif isinstance(set_, ColumnCollection): - set_ = dict(set_) - else: - raise ValueError( - "set parameter must be a non-empty dictionary " - "or a ColumnCollection such as the `.c.` collection " - "of a Table object" - ) - self.update_values_to_set = [ - (coercions.expect(roles.DMLColumnRole, key), value) - for key, value in set_.items() - ] - self.update_whereclause = where -- cgit v1.2.3