gVPSSKJr SSKrSSKJr SSKJr SSKJr SSKJr SSKJr SSKJ r SS KJ r SS KJ r SS KJ r SS K Jr S SKJr S SKJr SSKJr SSKJr SSKJr \ (alSSKJr SSKJr SSKJr SSKJr SSKJr SSKJr SSKJr SSK J!r! SSK J"r" SSK J#r# SSK$J%r% SSK$J&r& SS K$J'r' SS!K$J(r( SS"K)J*r* SS#K+J,r, SS$K+J-r- SS%K.J/r/ S.S&jr0S/S'jr1S0S1S(jjr2S2S)jr3"S*S+5r4"S,S-5r5g)3) annotationsN)Any)Dict)Iterator)List)Optional)Sequence)Set) TYPE_CHECKING)Union)inspect)compare)render)util)ops) sqla_compat) Connection)Dialect) Inspector)MetaData) SchemaItem)Table)Config) DowngradeOps)MigrationScript) UpgradeOps)NameFilterParentNames)NameFilterType)ProcessRevisionDirectiveFn) RenderItemFnMigrationContext)Script)ScriptDirectory) _GetRevArgcj[X5nURceURR5$)a Compare a database schema to that given in a :class:`~sqlalchemy.schema.MetaData` instance. The database connection is presented in the context of a :class:`.MigrationContext` object, which provides database connectivity as well as optional comparison functions to use for datatypes and server defaults - see the "autogenerate" arguments at :meth:`.EnvironmentContext.configure` for details on these. The return format is a list of "diff" directives, each representing individual differences:: from alembic.migration import MigrationContext from alembic.autogenerate import compare_metadata from sqlalchemy import ( create_engine, MetaData, Column, Integer, String, Table, text, ) import pprint engine = create_engine("sqlite://") with engine.begin() as conn: conn.execute( text( ''' create table foo ( id integer not null primary key, old_data varchar, x integer ) ''' ) ) conn.execute(text("create table bar (data varchar)")) metadata = MetaData() Table( "foo", metadata, Column("id", Integer, primary_key=True), Column("data", Integer), Column("x", Integer, nullable=False), ) Table("bat", metadata, Column("info", String)) mc = MigrationContext.configure(engine.connect()) diff = compare_metadata(mc, metadata) pprint.pprint(diff, indent=2, width=20) Output:: [ ( "add_table", Table( "bat", MetaData(), Column("info", String(), table=), schema=None, ), ), ( "remove_table", Table( "bar", MetaData(), Column("data", VARCHAR(), table=), schema=None, ), ), ( "add_column", None, "foo", Column("data", Integer(), table=), ), [ ( "modify_nullable", None, "foo", "x", { "existing_comment": None, "existing_server_default": False, "existing_type": INTEGER(), }, True, False, ) ], ( "remove_column", None, "foo", Column("old_data", VARCHAR(), table=), ), ] :param context: a :class:`.MigrationContext` instance. :param metadata: a :class:`~sqlalchemy.schema.MetaData` instance. .. seealso:: :func:`.produce_migrations` - produces a :class:`.MigrationScript` structure based on metadata comparison. )produce_migrations upgrade_opsas_diffs)contextmetadatamigration_scripts `/Users/Alptekin/Desktop/izin_takip/venv/lib/python3.13/site-packages/alembic/autogenerate/api.pycompare_metadatar0/s7r*'<  ' ' 33 3  ' ' 0 0 22c[XS9n[R"S[R"/5[R"/5S9n[ R "X#5 U$)aProduce a :class:`.MigrationScript` structure based on schema comparison. This function does essentially what :func:`.compare_metadata` does, but then runs the resulting list of diffs to produce the full :class:`.MigrationScript` object. For an example of what this looks like, see the example in :ref:`customizing_revision`. .. seealso:: :func:`.compare_metadata` - returns more fundamental "diff" data from comparing a schema. )r-Nrev_idr* downgrade_ops)AutogenContextrrrrr_populate_migration_script)r,r-autogen_contextr.s r/r)r)sR$%W@O**NN2&&&r*  &&I r1cUUUUUS.nUc!SSKJn SSKJn U R"U "5S9n[ XhS9n [ U5U l[R"[R"X 55$)aRender Python code given an :class:`.UpgradeOps` or :class:`.DowngradeOps` object. This is a convenience function that can be used to test the autogenerate output of a user-defined :class:`.MigrationScript` structure. :param up_or_down_op: :class:`.UpgradeOps` or :class:`.DowngradeOps` object :param sqlalchemy_module_prefix: module prefix for SQLAlchemy objects :param alembic_module_prefix: module prefix for Alembic constructs :param render_as_batch: use "batch operations" style for rendering :param imports: sequence of import symbols to add :param render_item: callable to render items :param migration_context: optional :class:`.MigrationContext` :param user_module_prefix: optional string prefix for user-defined types .. versionadded:: 1.11.0 )sqlalchemy_module_prefixalembic_module_prefix render_itemrender_as_batchuser_module_prefixrr#r)DefaultDialect)dialect)opts) runtime.migrationr$sqlalchemy.engine.defaultr? configurer6setimportsr_indent_render_cmd_body) up_or_down_opr:r;r=rFr<migration_contextr>rAr$r?r8s r/render_python_coderKsw:%=!6"*0  D 8<,66"$ %%6BO!'lO >> ? r1c[U5n[R"/5n[R"X#5 [R "SUUR 5S9n[R"X$U5 g)z6legacy, used by test_autogen_composition at the momentNr3) r6rrr_produce_net_changesrreverser _render_python_into_templatevars)r, template_argsr8r*r.s r/_render_migration_diffsrQsb %W-O..$K   >**!))+  ++=r1cp\rSrSr%SrSrS\S'SrS\S'SrS\S 'Sr S \S 'Sr S \S 'SSSjjr \ RSSj5r\R SSj5rSSjrSSjr\r\ RSSj5r\ RSSj5rSrg)r6izOMaintains configuration and state that's specific to an autogenerate operation.N)Union[MetaData, Sequence[MetaData], None]r-zOptional[Connection] connectionzOptional[Dialect]r@zSet[str]rFr$rJcU(a*Ub'UR(a[R"S5eUc URnUcUR SS5OU=UlnU(a@Uc=Ub:UR b-[R"SUR R-5eUR SS5nUR SS5n/n/nU(aURU5 U(aURU5 Xpl Xl Xl URb6URRUl URRUl[5UlX0lSUlg)Nz^autogenerate can't use as_sql=True as it prevents querying the database for schema informationtarget_metadatazCan't proceed with --autogenerate option; environment script %s does not provide a MetaData object or sequence of objects to the context.include_object include_nameF)as_sqlr CommandErrorrAgetr-scriptenv_py_locationappend_object_filters _name_filtersrJbindrTr@rErF _has_batch) selfrJr-rA autogeneraterWrXobject_filters name_filterss r/__init__AutogenContext.__init__LsW !-!((##6  <$))D2:1ADHH& -x    !-!((4##K%++;;= "2D9xx5    ! !. 1     --)!2  ! ! -"4499DO1199DLu $( %r1c\URc [S5e[UR5$)NzHcan't return inspector as this AutogenContext has no database connection)rT TypeErrorr rcs r/ inspectorAutogenContext.inspectors/ ?? 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