1113 lines
38 KiB
Python
1113 lines
38 KiB
Python
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import operator
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import re
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import sqlalchemy as sa
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from .. import assert_raises_message
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from .. import config
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from .. import engines
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from .. import eq_
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from .. import expect_warnings
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from .. import fixtures
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from .. import is_
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from ..schema import Column
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from ..schema import Table
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from ... import event
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from ... import exc as sa_exc
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from ... import ForeignKey
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from ... import inspect
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from ... import Integer
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from ... import MetaData
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from ... import String
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from ... import testing
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from ... import types as sql_types
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from ...engine.reflection import Inspector
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from ...schema import DDL
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from ...schema import Index
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from ...sql.elements import quoted_name
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from ...testing import is_false
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from ...testing import is_true
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metadata, users = None, None
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class HasTableTest(fixtures.TablesTest):
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__backend__ = True
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@classmethod
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def define_tables(cls, metadata):
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Table(
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"test_table",
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metadata,
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Column("id", Integer, primary_key=True),
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Column("data", String(50)),
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)
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if testing.requires.schemas.enabled:
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Table(
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"test_table_s",
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metadata,
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Column("id", Integer, primary_key=True),
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Column("data", String(50)),
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schema=config.test_schema,
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)
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def test_has_table(self):
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with config.db.begin() as conn:
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is_true(config.db.dialect.has_table(conn, "test_table"))
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is_false(config.db.dialect.has_table(conn, "test_table_s"))
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is_false(config.db.dialect.has_table(conn, "nonexistent_table"))
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@testing.requires.schemas
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def test_has_table_schema(self):
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with config.db.begin() as conn:
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is_false(
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config.db.dialect.has_table(
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conn, "test_table", schema=config.test_schema
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)
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)
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is_true(
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config.db.dialect.has_table(
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conn, "test_table_s", schema=config.test_schema
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)
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)
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is_false(
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config.db.dialect.has_table(
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conn, "nonexistent_table", schema=config.test_schema
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)
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)
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class ComponentReflectionTest(fixtures.TablesTest):
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run_inserts = run_deletes = None
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__backend__ = True
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@classmethod
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def setup_bind(cls):
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if config.requirements.independent_connections.enabled:
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from sqlalchemy import pool
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return engines.testing_engine(
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options=dict(poolclass=pool.StaticPool)
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)
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else:
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return config.db
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@classmethod
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def define_tables(cls, metadata):
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cls.define_reflected_tables(metadata, None)
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if testing.requires.schemas.enabled:
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cls.define_reflected_tables(metadata, testing.config.test_schema)
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@classmethod
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def define_reflected_tables(cls, metadata, schema):
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if schema:
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schema_prefix = schema + "."
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else:
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schema_prefix = ""
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if testing.requires.self_referential_foreign_keys.enabled:
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users = Table(
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"users",
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metadata,
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Column("user_id", sa.INT, primary_key=True),
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Column("test1", sa.CHAR(5), nullable=False),
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Column("test2", sa.Float(5), nullable=False),
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Column(
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"parent_user_id",
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sa.Integer,
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sa.ForeignKey(
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"%susers.user_id" % schema_prefix, name="user_id_fk"
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),
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),
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schema=schema,
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test_needs_fk=True,
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)
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else:
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users = Table(
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"users",
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metadata,
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Column("user_id", sa.INT, primary_key=True),
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Column("test1", sa.CHAR(5), nullable=False),
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Column("test2", sa.Float(5), nullable=False),
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schema=schema,
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test_needs_fk=True,
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)
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Table(
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"dingalings",
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metadata,
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Column("dingaling_id", sa.Integer, primary_key=True),
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Column(
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"address_id",
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sa.Integer,
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sa.ForeignKey("%semail_addresses.address_id" % schema_prefix),
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),
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Column("data", sa.String(30)),
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schema=schema,
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test_needs_fk=True,
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)
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Table(
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"email_addresses",
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metadata,
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Column("address_id", sa.Integer),
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Column(
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"remote_user_id", sa.Integer, sa.ForeignKey(users.c.user_id)
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),
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Column("email_address", sa.String(20)),
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sa.PrimaryKeyConstraint("address_id", name="email_ad_pk"),
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schema=schema,
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test_needs_fk=True,
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)
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Table(
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"comment_test",
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metadata,
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Column("id", sa.Integer, primary_key=True, comment="id comment"),
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Column("data", sa.String(20), comment="data % comment"),
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Column(
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"d2",
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sa.String(20),
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comment=r"""Comment types type speedily ' " \ '' Fun!""",
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),
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schema=schema,
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comment=r"""the test % ' " \ table comment""",
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)
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if testing.requires.cross_schema_fk_reflection.enabled:
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if schema is None:
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Table(
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"local_table",
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metadata,
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Column("id", sa.Integer, primary_key=True),
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Column("data", sa.String(20)),
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Column(
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"remote_id",
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ForeignKey(
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"%s.remote_table_2.id" % testing.config.test_schema
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),
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),
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test_needs_fk=True,
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schema=config.db.dialect.default_schema_name,
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)
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else:
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Table(
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"remote_table",
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metadata,
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Column("id", sa.Integer, primary_key=True),
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Column(
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"local_id",
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ForeignKey(
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"%s.local_table.id"
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% config.db.dialect.default_schema_name
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),
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),
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Column("data", sa.String(20)),
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schema=schema,
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test_needs_fk=True,
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)
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Table(
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"remote_table_2",
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metadata,
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Column("id", sa.Integer, primary_key=True),
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Column("data", sa.String(20)),
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schema=schema,
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test_needs_fk=True,
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)
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if testing.requires.index_reflection.enabled:
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cls.define_index(metadata, users)
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if not schema:
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# test_needs_fk is at the moment to force MySQL InnoDB
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noncol_idx_test_nopk = Table(
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"noncol_idx_test_nopk",
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metadata,
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Column("q", sa.String(5)),
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test_needs_fk=True,
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)
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noncol_idx_test_pk = Table(
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"noncol_idx_test_pk",
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metadata,
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Column("id", sa.Integer, primary_key=True),
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Column("q", sa.String(5)),
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test_needs_fk=True,
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)
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Index("noncol_idx_nopk", noncol_idx_test_nopk.c.q.desc())
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Index("noncol_idx_pk", noncol_idx_test_pk.c.q.desc())
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if testing.requires.view_column_reflection.enabled:
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cls.define_views(metadata, schema)
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if not schema and testing.requires.temp_table_reflection.enabled:
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cls.define_temp_tables(metadata)
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@classmethod
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def define_temp_tables(cls, metadata):
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# cheat a bit, we should fix this with some dialect-level
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# temp table fixture
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if testing.against("oracle"):
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kw = {
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"prefixes": ["GLOBAL TEMPORARY"],
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"oracle_on_commit": "PRESERVE ROWS",
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}
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else:
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kw = {"prefixes": ["TEMPORARY"]}
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user_tmp = Table(
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"user_tmp",
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metadata,
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Column("id", sa.INT, primary_key=True),
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Column("name", sa.VARCHAR(50)),
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Column("foo", sa.INT),
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sa.UniqueConstraint("name", name="user_tmp_uq"),
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sa.Index("user_tmp_ix", "foo"),
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**kw
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)
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if (
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testing.requires.view_reflection.enabled
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and testing.requires.temporary_views.enabled
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):
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event.listen(
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user_tmp,
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"after_create",
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DDL(
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"create temporary view user_tmp_v as "
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"select * from user_tmp"
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),
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)
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event.listen(user_tmp, "before_drop", DDL("drop view user_tmp_v"))
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@classmethod
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def define_index(cls, metadata, users):
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Index("users_t_idx", users.c.test1, users.c.test2)
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Index("users_all_idx", users.c.user_id, users.c.test2, users.c.test1)
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@classmethod
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def define_views(cls, metadata, schema):
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for table_name in ("users", "email_addresses"):
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fullname = table_name
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if schema:
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fullname = "%s.%s" % (schema, table_name)
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view_name = fullname + "_v"
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query = "CREATE VIEW %s AS SELECT * FROM %s" % (
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view_name,
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fullname,
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)
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event.listen(metadata, "after_create", DDL(query))
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event.listen(
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metadata, "before_drop", DDL("DROP VIEW %s" % view_name)
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)
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@testing.requires.schema_reflection
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def test_get_schema_names(self):
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insp = inspect(testing.db)
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self.assert_(testing.config.test_schema in insp.get_schema_names())
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@testing.requires.schema_reflection
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def test_dialect_initialize(self):
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engine = engines.testing_engine()
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assert not hasattr(engine.dialect, "default_schema_name")
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inspect(engine)
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assert hasattr(engine.dialect, "default_schema_name")
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@testing.requires.schema_reflection
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def test_get_default_schema_name(self):
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insp = inspect(testing.db)
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eq_(insp.default_schema_name, testing.db.dialect.default_schema_name)
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@testing.provide_metadata
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def _test_get_table_names(
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self, schema=None, table_type="table", order_by=None
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):
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_ignore_tables = [
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"comment_test",
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"noncol_idx_test_pk",
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"noncol_idx_test_nopk",
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"local_table",
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"remote_table",
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"remote_table_2",
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]
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meta = self.metadata
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insp = inspect(meta.bind)
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if table_type == "view":
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table_names = insp.get_view_names(schema)
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table_names.sort()
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answer = ["email_addresses_v", "users_v"]
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eq_(sorted(table_names), answer)
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else:
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if order_by:
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tables = [
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rec[0]
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for rec in insp.get_sorted_table_and_fkc_names(schema)
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if rec[0]
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]
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else:
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tables = insp.get_table_names(schema)
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table_names = [t for t in tables if t not in _ignore_tables]
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|
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if order_by == "foreign_key":
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answer = ["users", "email_addresses", "dingalings"]
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eq_(table_names, answer)
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else:
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answer = ["dingalings", "email_addresses", "users"]
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eq_(sorted(table_names), answer)
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|
|
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||
|
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@testing.requires.temp_table_names
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||
|
|
def test_get_temp_table_names(self):
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|
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insp = inspect(self.bind)
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temp_table_names = insp.get_temp_table_names()
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eq_(sorted(temp_table_names), ["user_tmp"])
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|
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|
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@testing.requires.view_reflection
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|
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@testing.requires.temp_table_names
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|
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@testing.requires.temporary_views
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def test_get_temp_view_names(self):
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insp = inspect(self.bind)
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temp_table_names = insp.get_temp_view_names()
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eq_(sorted(temp_table_names), ["user_tmp_v"])
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|
|
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|
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@testing.requires.table_reflection
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||
|
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def test_get_table_names(self):
|
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|
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self._test_get_table_names()
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|
|
|
||
|
|
@testing.requires.table_reflection
|
||
|
|
@testing.requires.foreign_key_constraint_reflection
|
||
|
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def test_get_table_names_fks(self):
|
||
|
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self._test_get_table_names(order_by="foreign_key")
|
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|
|
|
||
|
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@testing.requires.comment_reflection
|
||
|
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def test_get_comments(self):
|
||
|
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self._test_get_comments()
|
||
|
|
|
||
|
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@testing.requires.comment_reflection
|
||
|
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@testing.requires.schemas
|
||
|
|
def test_get_comments_with_schema(self):
|
||
|
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self._test_get_comments(testing.config.test_schema)
|
||
|
|
|
||
|
|
def _test_get_comments(self, schema=None):
|
||
|
|
insp = inspect(testing.db)
|
||
|
|
|
||
|
|
eq_(
|
||
|
|
insp.get_table_comment("comment_test", schema=schema),
|
||
|
|
{"text": r"""the test % ' " \ table comment"""},
|
||
|
|
)
|
||
|
|
|
||
|
|
eq_(insp.get_table_comment("users", schema=schema), {"text": None})
|
||
|
|
|
||
|
|
eq_(
|
||
|
|
[
|
||
|
|
{"name": rec["name"], "comment": rec["comment"]}
|
||
|
|
for rec in insp.get_columns("comment_test", schema=schema)
|
||
|
|
],
|
||
|
|
[
|
||
|
|
{"comment": "id comment", "name": "id"},
|
||
|
|
{"comment": "data % comment", "name": "data"},
|
||
|
|
{
|
||
|
|
"comment": (
|
||
|
|
r"""Comment types type speedily ' " \ '' Fun!"""
|
||
|
|
),
|
||
|
|
"name": "d2",
|
||
|
|
},
|
||
|
|
],
|
||
|
|
)
|
||
|
|
|
||
|
|
@testing.requires.table_reflection
|
||
|
|
@testing.requires.schemas
|
||
|
|
def test_get_table_names_with_schema(self):
|
||
|
|
self._test_get_table_names(testing.config.test_schema)
|
||
|
|
|
||
|
|
@testing.requires.view_column_reflection
|
||
|
|
def test_get_view_names(self):
|
||
|
|
self._test_get_table_names(table_type="view")
|
||
|
|
|
||
|
|
@testing.requires.view_column_reflection
|
||
|
|
@testing.requires.schemas
|
||
|
|
def test_get_view_names_with_schema(self):
|
||
|
|
self._test_get_table_names(
|
||
|
|
testing.config.test_schema, table_type="view"
|
||
|
|
)
|
||
|
|
|
||
|
|
@testing.requires.table_reflection
|
||
|
|
@testing.requires.view_column_reflection
|
||
|
|
def test_get_tables_and_views(self):
|
||
|
|
self._test_get_table_names()
|
||
|
|
self._test_get_table_names(table_type="view")
|
||
|
|
|
||
|
|
def _test_get_columns(self, schema=None, table_type="table"):
|
||
|
|
meta = MetaData(testing.db)
|
||
|
|
users, addresses = (self.tables.users, self.tables.email_addresses)
|
||
|
|
table_names = ["users", "email_addresses"]
|
||
|
|
if table_type == "view":
|
||
|
|
table_names = ["users_v", "email_addresses_v"]
|
||
|
|
insp = inspect(meta.bind)
|
||
|
|
for table_name, table in zip(table_names, (users, addresses)):
|
||
|
|
schema_name = schema
|
||
|
|
cols = insp.get_columns(table_name, schema=schema_name)
|
||
|
|
self.assert_(len(cols) > 0, len(cols))
|
||
|
|
|
||
|
|
# should be in order
|
||
|
|
|
||
|
|
for i, col in enumerate(table.columns):
|
||
|
|
eq_(col.name, cols[i]["name"])
|
||
|
|
ctype = cols[i]["type"].__class__
|
||
|
|
ctype_def = col.type
|
||
|
|
if isinstance(ctype_def, sa.types.TypeEngine):
|
||
|
|
ctype_def = ctype_def.__class__
|
||
|
|
|
||
|
|
# Oracle returns Date for DateTime.
|
||
|
|
|
||
|
|
if testing.against("oracle") and ctype_def in (
|
||
|
|
sql_types.Date,
|
||
|
|
sql_types.DateTime,
|
||
|
|
):
|
||
|
|
ctype_def = sql_types.Date
|
||
|
|
|
||
|
|
# assert that the desired type and return type share
|
||
|
|
# a base within one of the generic types.
|
||
|
|
|
||
|
|
self.assert_(
|
||
|
|
len(
|
||
|
|
set(ctype.__mro__)
|
||
|
|
.intersection(ctype_def.__mro__)
|
||
|
|
.intersection(
|
||
|
|
[
|
||
|
|
sql_types.Integer,
|
||
|
|
sql_types.Numeric,
|
||
|
|
sql_types.DateTime,
|
||
|
|
sql_types.Date,
|
||
|
|
sql_types.Time,
|
||
|
|
sql_types.String,
|
||
|
|
sql_types._Binary,
|
||
|
|
]
|
||
|
|
)
|
||
|
|
)
|
||
|
|
> 0,
|
||
|
|
"%s(%s), %s(%s)"
|
||
|
|
% (col.name, col.type, cols[i]["name"], ctype),
|
||
|
|
)
|
||
|
|
|
||
|
|
if not col.primary_key:
|
||
|
|
assert cols[i]["default"] is None
|
||
|
|
|
||
|
|
@testing.requires.table_reflection
|
||
|
|
def test_get_columns(self):
|
||
|
|
self._test_get_columns()
|
||
|
|
|
||
|
|
@testing.provide_metadata
|
||
|
|
def _type_round_trip(self, *types):
|
||
|
|
t = Table(
|
||
|
|
"t",
|
||
|
|
self.metadata,
|
||
|
|
*[Column("t%d" % i, type_) for i, type_ in enumerate(types)]
|
||
|
|
)
|
||
|
|
t.create()
|
||
|
|
|
||
|
|
return [
|
||
|
|
c["type"] for c in inspect(self.metadata.bind).get_columns("t")
|
||
|
|
]
|
||
|
|
|
||
|
|
@testing.requires.table_reflection
|
||
|
|
def test_numeric_reflection(self):
|
||
|
|
for typ in self._type_round_trip(sql_types.Numeric(18, 5)):
|
||
|
|
assert isinstance(typ, sql_types.Numeric)
|
||
|
|
eq_(typ.precision, 18)
|
||
|
|
eq_(typ.scale, 5)
|
||
|
|
|
||
|
|
@testing.requires.table_reflection
|
||
|
|
def test_varchar_reflection(self):
|
||
|
|
typ = self._type_round_trip(sql_types.String(52))[0]
|
||
|
|
assert isinstance(typ, sql_types.String)
|
||
|
|
eq_(typ.length, 52)
|
||
|
|
|
||
|
|
@testing.requires.table_reflection
|
||
|
|
@testing.provide_metadata
|
||
|
|
def test_nullable_reflection(self):
|
||
|
|
t = Table(
|
||
|
|
"t",
|
||
|
|
self.metadata,
|
||
|
|
Column("a", Integer, nullable=True),
|
||
|
|
Column("b", Integer, nullable=False),
|
||
|
|
)
|
||
|
|
t.create()
|
||
|
|
eq_(
|
||
|
|
dict(
|
||
|
|
(col["name"], col["nullable"])
|
||
|
|
for col in inspect(self.metadata.bind).get_columns("t")
|
||
|
|
),
|
||
|
|
{"a": True, "b": False},
|
||
|
|
)
|
||
|
|
|
||
|
|
@testing.requires.table_reflection
|
||
|
|
@testing.requires.schemas
|
||
|
|
def test_get_columns_with_schema(self):
|
||
|
|
self._test_get_columns(schema=testing.config.test_schema)
|
||
|
|
|
||
|
|
@testing.requires.temp_table_reflection
|
||
|
|
def test_get_temp_table_columns(self):
|
||
|
|
meta = MetaData(self.bind)
|
||
|
|
user_tmp = self.tables.user_tmp
|
||
|
|
insp = inspect(meta.bind)
|
||
|
|
cols = insp.get_columns("user_tmp")
|
||
|
|
self.assert_(len(cols) > 0, len(cols))
|
||
|
|
|
||
|
|
for i, col in enumerate(user_tmp.columns):
|
||
|
|
eq_(col.name, cols[i]["name"])
|
||
|
|
|
||
|
|
@testing.requires.temp_table_reflection
|
||
|
|
@testing.requires.view_column_reflection
|
||
|
|
@testing.requires.temporary_views
|
||
|
|
def test_get_temp_view_columns(self):
|
||
|
|
insp = inspect(self.bind)
|
||
|
|
cols = insp.get_columns("user_tmp_v")
|
||
|
|
eq_([col["name"] for col in cols], ["id", "name", "foo"])
|
||
|
|
|
||
|
|
@testing.requires.view_column_reflection
|
||
|
|
def test_get_view_columns(self):
|
||
|
|
self._test_get_columns(table_type="view")
|
||
|
|
|
||
|
|
@testing.requires.view_column_reflection
|
||
|
|
@testing.requires.schemas
|
||
|
|
def test_get_view_columns_with_schema(self):
|
||
|
|
self._test_get_columns(
|
||
|
|
schema=testing.config.test_schema, table_type="view"
|
||
|
|
)
|
||
|
|
|
||
|
|
@testing.provide_metadata
|
||
|
|
def _test_get_pk_constraint(self, schema=None):
|
||
|
|
meta = self.metadata
|
||
|
|
users, addresses = self.tables.users, self.tables.email_addresses
|
||
|
|
insp = inspect(meta.bind)
|
||
|
|
|
||
|
|
users_cons = insp.get_pk_constraint(users.name, schema=schema)
|
||
|
|
users_pkeys = users_cons["constrained_columns"]
|
||
|
|
eq_(users_pkeys, ["user_id"])
|
||
|
|
|
||
|
|
addr_cons = insp.get_pk_constraint(addresses.name, schema=schema)
|
||
|
|
addr_pkeys = addr_cons["constrained_columns"]
|
||
|
|
eq_(addr_pkeys, ["address_id"])
|
||
|
|
|
||
|
|
with testing.requires.reflects_pk_names.fail_if():
|
||
|
|
eq_(addr_cons["name"], "email_ad_pk")
|
||
|
|
|
||
|
|
@testing.requires.primary_key_constraint_reflection
|
||
|
|
def test_get_pk_constraint(self):
|
||
|
|
self._test_get_pk_constraint()
|
||
|
|
|
||
|
|
@testing.requires.table_reflection
|
||
|
|
@testing.requires.primary_key_constraint_reflection
|
||
|
|
@testing.requires.schemas
|
||
|
|
def test_get_pk_constraint_with_schema(self):
|
||
|
|
self._test_get_pk_constraint(schema=testing.config.test_schema)
|
||
|
|
|
||
|
|
@testing.requires.table_reflection
|
||
|
|
@testing.provide_metadata
|
||
|
|
def test_deprecated_get_primary_keys(self):
|
||
|
|
meta = self.metadata
|
||
|
|
users = self.tables.users
|
||
|
|
insp = Inspector(meta.bind)
|
||
|
|
assert_raises_message(
|
||
|
|
sa_exc.SADeprecationWarning,
|
||
|
|
r".*get_primary_keys\(\) method is deprecated",
|
||
|
|
insp.get_primary_keys,
|
||
|
|
users.name,
|
||
|
|
)
|
||
|
|
|
||
|
|
@testing.provide_metadata
|
||
|
|
def _test_get_foreign_keys(self, schema=None):
|
||
|
|
meta = self.metadata
|
||
|
|
users, addresses = (self.tables.users, self.tables.email_addresses)
|
||
|
|
insp = inspect(meta.bind)
|
||
|
|
expected_schema = schema
|
||
|
|
# users
|
||
|
|
|
||
|
|
if testing.requires.self_referential_foreign_keys.enabled:
|
||
|
|
users_fkeys = insp.get_foreign_keys(users.name, schema=schema)
|
||
|
|
fkey1 = users_fkeys[0]
|
||
|
|
|
||
|
|
with testing.requires.named_constraints.fail_if():
|
||
|
|
eq_(fkey1["name"], "user_id_fk")
|
||
|
|
|
||
|
|
eq_(fkey1["referred_schema"], expected_schema)
|
||
|
|
eq_(fkey1["referred_table"], users.name)
|
||
|
|
eq_(fkey1["referred_columns"], ["user_id"])
|
||
|
|
if testing.requires.self_referential_foreign_keys.enabled:
|
||
|
|
eq_(fkey1["constrained_columns"], ["parent_user_id"])
|
||
|
|
|
||
|
|
# addresses
|
||
|
|
addr_fkeys = insp.get_foreign_keys(addresses.name, schema=schema)
|
||
|
|
fkey1 = addr_fkeys[0]
|
||
|
|
|
||
|
|
with testing.requires.implicitly_named_constraints.fail_if():
|
||
|
|
self.assert_(fkey1["name"] is not None)
|
||
|
|
|
||
|
|
eq_(fkey1["referred_schema"], expected_schema)
|
||
|
|
eq_(fkey1["referred_table"], users.name)
|
||
|
|
eq_(fkey1["referred_columns"], ["user_id"])
|
||
|
|
eq_(fkey1["constrained_columns"], ["remote_user_id"])
|
||
|
|
|
||
|
|
@testing.requires.foreign_key_constraint_reflection
|
||
|
|
def test_get_foreign_keys(self):
|
||
|
|
self._test_get_foreign_keys()
|
||
|
|
|
||
|
|
@testing.requires.foreign_key_constraint_reflection
|
||
|
|
@testing.requires.schemas
|
||
|
|
def test_get_foreign_keys_with_schema(self):
|
||
|
|
self._test_get_foreign_keys(schema=testing.config.test_schema)
|
||
|
|
|
||
|
|
@testing.requires.cross_schema_fk_reflection
|
||
|
|
@testing.requires.schemas
|
||
|
|
def test_get_inter_schema_foreign_keys(self):
|
||
|
|
local_table, remote_table, remote_table_2 = self.tables(
|
||
|
|
"%s.local_table" % testing.db.dialect.default_schema_name,
|
||
|
|
"%s.remote_table" % testing.config.test_schema,
|
||
|
|
"%s.remote_table_2" % testing.config.test_schema,
|
||
|
|
)
|
||
|
|
|
||
|
|
insp = inspect(config.db)
|
||
|
|
|
||
|
|
local_fkeys = insp.get_foreign_keys(local_table.name)
|
||
|
|
eq_(len(local_fkeys), 1)
|
||
|
|
|
||
|
|
fkey1 = local_fkeys[0]
|
||
|
|
eq_(fkey1["referred_schema"], testing.config.test_schema)
|
||
|
|
eq_(fkey1["referred_table"], remote_table_2.name)
|
||
|
|
eq_(fkey1["referred_columns"], ["id"])
|
||
|
|
eq_(fkey1["constrained_columns"], ["remote_id"])
|
||
|
|
|
||
|
|
remote_fkeys = insp.get_foreign_keys(
|
||
|
|
remote_table.name, schema=testing.config.test_schema
|
||
|
|
)
|
||
|
|
eq_(len(remote_fkeys), 1)
|
||
|
|
|
||
|
|
fkey2 = remote_fkeys[0]
|
||
|
|
|
||
|
|
assert fkey2["referred_schema"] in (
|
||
|
|
None,
|
||
|
|
testing.db.dialect.default_schema_name,
|
||
|
|
)
|
||
|
|
eq_(fkey2["referred_table"], local_table.name)
|
||
|
|
eq_(fkey2["referred_columns"], ["id"])
|
||
|
|
eq_(fkey2["constrained_columns"], ["local_id"])
|
||
|
|
|
||
|
|
@testing.requires.foreign_key_constraint_option_reflection_ondelete
|
||
|
|
def test_get_foreign_key_options_ondelete(self):
|
||
|
|
self._test_get_foreign_key_options(ondelete="CASCADE")
|
||
|
|
|
||
|
|
@testing.requires.foreign_key_constraint_option_reflection_onupdate
|
||
|
|
def test_get_foreign_key_options_onupdate(self):
|
||
|
|
self._test_get_foreign_key_options(onupdate="SET NULL")
|
||
|
|
|
||
|
|
@testing.provide_metadata
|
||
|
|
def _test_get_foreign_key_options(self, **options):
|
||
|
|
meta = self.metadata
|
||
|
|
|
||
|
|
Table(
|
||
|
|
"x",
|
||
|
|
meta,
|
||
|
|
Column("id", Integer, primary_key=True),
|
||
|
|
test_needs_fk=True,
|
||
|
|
)
|
||
|
|
|
||
|
|
Table(
|
||
|
|
"table",
|
||
|
|
meta,
|
||
|
|
Column("id", Integer, primary_key=True),
|
||
|
|
Column("x_id", Integer, sa.ForeignKey("x.id", name="xid")),
|
||
|
|
Column("test", String(10)),
|
||
|
|
test_needs_fk=True,
|
||
|
|
)
|
||
|
|
|
||
|
|
Table(
|
||
|
|
"user",
|
||
|
|
meta,
|
||
|
|
Column("id", Integer, primary_key=True),
|
||
|
|
Column("name", String(50), nullable=False),
|
||
|
|
Column("tid", Integer),
|
||
|
|
sa.ForeignKeyConstraint(
|
||
|
|
["tid"], ["table.id"], name="myfk", **options
|
||
|
|
),
|
||
|
|
test_needs_fk=True,
|
||
|
|
)
|
||
|
|
|
||
|
|
meta.create_all()
|
||
|
|
|
||
|
|
insp = inspect(meta.bind)
|
||
|
|
|
||
|
|
# test 'options' is always present for a backend
|
||
|
|
# that can reflect these, since alembic looks for this
|
||
|
|
opts = insp.get_foreign_keys("table")[0]["options"]
|
||
|
|
|
||
|
|
eq_(dict((k, opts[k]) for k in opts if opts[k]), {})
|
||
|
|
|
||
|
|
opts = insp.get_foreign_keys("user")[0]["options"]
|
||
|
|
eq_(dict((k, opts[k]) for k in opts if opts[k]), options)
|
||
|
|
|
||
|
|
def _assert_insp_indexes(self, indexes, expected_indexes):
|
||
|
|
index_names = [d["name"] for d in indexes]
|
||
|
|
for e_index in expected_indexes:
|
||
|
|
assert e_index["name"] in index_names
|
||
|
|
index = indexes[index_names.index(e_index["name"])]
|
||
|
|
for key in e_index:
|
||
|
|
eq_(e_index[key], index[key])
|
||
|
|
|
||
|
|
@testing.provide_metadata
|
||
|
|
def _test_get_indexes(self, schema=None):
|
||
|
|
meta = self.metadata
|
||
|
|
|
||
|
|
# The database may decide to create indexes for foreign keys, etc.
|
||
|
|
# so there may be more indexes than expected.
|
||
|
|
insp = inspect(meta.bind)
|
||
|
|
indexes = insp.get_indexes("users", schema=schema)
|
||
|
|
expected_indexes = [
|
||
|
|
{
|
||
|
|
"unique": False,
|
||
|
|
"column_names": ["test1", "test2"],
|
||
|
|
"name": "users_t_idx",
|
||
|
|
},
|
||
|
|
{
|
||
|
|
"unique": False,
|
||
|
|
"column_names": ["user_id", "test2", "test1"],
|
||
|
|
"name": "users_all_idx",
|
||
|
|
},
|
||
|
|
]
|
||
|
|
self._assert_insp_indexes(indexes, expected_indexes)
|
||
|
|
|
||
|
|
@testing.requires.index_reflection
|
||
|
|
def test_get_indexes(self):
|
||
|
|
self._test_get_indexes()
|
||
|
|
|
||
|
|
@testing.requires.index_reflection
|
||
|
|
@testing.requires.schemas
|
||
|
|
def test_get_indexes_with_schema(self):
|
||
|
|
self._test_get_indexes(schema=testing.config.test_schema)
|
||
|
|
|
||
|
|
@testing.provide_metadata
|
||
|
|
def _test_get_noncol_index(self, tname, ixname):
|
||
|
|
meta = self.metadata
|
||
|
|
insp = inspect(meta.bind)
|
||
|
|
indexes = insp.get_indexes(tname)
|
||
|
|
|
||
|
|
# reflecting an index that has "x DESC" in it as the column.
|
||
|
|
# the DB may or may not give us "x", but make sure we get the index
|
||
|
|
# back, it has a name, it's connected to the table.
|
||
|
|
expected_indexes = [{"unique": False, "name": ixname}]
|
||
|
|
self._assert_insp_indexes(indexes, expected_indexes)
|
||
|
|
|
||
|
|
t = Table(tname, meta, autoload_with=meta.bind)
|
||
|
|
eq_(len(t.indexes), 1)
|
||
|
|
is_(list(t.indexes)[0].table, t)
|
||
|
|
eq_(list(t.indexes)[0].name, ixname)
|
||
|
|
|
||
|
|
@testing.requires.index_reflection
|
||
|
|
def test_get_noncol_index_no_pk(self):
|
||
|
|
self._test_get_noncol_index("noncol_idx_test_nopk", "noncol_idx_nopk")
|
||
|
|
|
||
|
|
@testing.requires.index_reflection
|
||
|
|
def test_get_noncol_index_pk(self):
|
||
|
|
self._test_get_noncol_index("noncol_idx_test_pk", "noncol_idx_pk")
|
||
|
|
|
||
|
|
@testing.requires.indexes_with_expressions
|
||
|
|
@testing.provide_metadata
|
||
|
|
def test_reflect_expression_based_indexes(self):
|
||
|
|
Table(
|
||
|
|
"t",
|
||
|
|
self.metadata,
|
||
|
|
Column("x", String(30)),
|
||
|
|
Column("y", String(30)),
|
||
|
|
)
|
||
|
|
event.listen(
|
||
|
|
self.metadata,
|
||
|
|
"after_create",
|
||
|
|
DDL("CREATE INDEX t_idx ON t(lower(x), lower(y))"),
|
||
|
|
)
|
||
|
|
event.listen(
|
||
|
|
self.metadata, "after_create", DDL("CREATE INDEX t_idx_2 ON t(x)")
|
||
|
|
)
|
||
|
|
self.metadata.create_all()
|
||
|
|
|
||
|
|
insp = inspect(self.metadata.bind)
|
||
|
|
|
||
|
|
with expect_warnings(
|
||
|
|
"Skipped unsupported reflection of expression-based index t_idx"
|
||
|
|
):
|
||
|
|
eq_(
|
||
|
|
insp.get_indexes("t"),
|
||
|
|
[{"name": "t_idx_2", "column_names": ["x"], "unique": 0}],
|
||
|
|
)
|
||
|
|
|
||
|
|
@testing.requires.unique_constraint_reflection
|
||
|
|
def test_get_unique_constraints(self):
|
||
|
|
self._test_get_unique_constraints()
|
||
|
|
|
||
|
|
@testing.requires.temp_table_reflection
|
||
|
|
@testing.requires.unique_constraint_reflection
|
||
|
|
def test_get_temp_table_unique_constraints(self):
|
||
|
|
insp = inspect(self.bind)
|
||
|
|
reflected = insp.get_unique_constraints("user_tmp")
|
||
|
|
for refl in reflected:
|
||
|
|
# Different dialects handle duplicate index and constraints
|
||
|
|
# differently, so ignore this flag
|
||
|
|
refl.pop("duplicates_index", None)
|
||
|
|
eq_(reflected, [{"column_names": ["name"], "name": "user_tmp_uq"}])
|
||
|
|
|
||
|
|
@testing.requires.temp_table_reflection
|
||
|
|
def test_get_temp_table_indexes(self):
|
||
|
|
insp = inspect(self.bind)
|
||
|
|
indexes = insp.get_indexes("user_tmp")
|
||
|
|
for ind in indexes:
|
||
|
|
ind.pop("dialect_options", None)
|
||
|
|
eq_(
|
||
|
|
# TODO: we need to add better filtering for indexes/uq constraints
|
||
|
|
# that are doubled up
|
||
|
|
[idx for idx in indexes if idx["name"] == "user_tmp_ix"],
|
||
|
|
[
|
||
|
|
{
|
||
|
|
"unique": False,
|
||
|
|
"column_names": ["foo"],
|
||
|
|
"name": "user_tmp_ix",
|
||
|
|
}
|
||
|
|
],
|
||
|
|
)
|
||
|
|
|
||
|
|
@testing.requires.unique_constraint_reflection
|
||
|
|
@testing.requires.schemas
|
||
|
|
def test_get_unique_constraints_with_schema(self):
|
||
|
|
self._test_get_unique_constraints(schema=testing.config.test_schema)
|
||
|
|
|
||
|
|
@testing.provide_metadata
|
||
|
|
def _test_get_unique_constraints(self, schema=None):
|
||
|
|
# SQLite dialect needs to parse the names of the constraints
|
||
|
|
# separately from what it gets from PRAGMA index_list(), and
|
||
|
|
# then matches them up. so same set of column_names in two
|
||
|
|
# constraints will confuse it. Perhaps we should no longer
|
||
|
|
# bother with index_list() here since we have the whole
|
||
|
|
# CREATE TABLE?
|
||
|
|
uniques = sorted(
|
||
|
|
[
|
||
|
|
{"name": "unique_a", "column_names": ["a"]},
|
||
|
|
{"name": "unique_a_b_c", "column_names": ["a", "b", "c"]},
|
||
|
|
{"name": "unique_c_a_b", "column_names": ["c", "a", "b"]},
|
||
|
|
{"name": "unique_asc_key", "column_names": ["asc", "key"]},
|
||
|
|
{"name": "i.have.dots", "column_names": ["b"]},
|
||
|
|
{"name": "i have spaces", "column_names": ["c"]},
|
||
|
|
],
|
||
|
|
key=operator.itemgetter("name"),
|
||
|
|
)
|
||
|
|
orig_meta = self.metadata
|
||
|
|
table = Table(
|
||
|
|
"testtbl",
|
||
|
|
orig_meta,
|
||
|
|
Column("a", sa.String(20)),
|
||
|
|
Column("b", sa.String(30)),
|
||
|
|
Column("c", sa.Integer),
|
||
|
|
# reserved identifiers
|
||
|
|
Column("asc", sa.String(30)),
|
||
|
|
Column("key", sa.String(30)),
|
||
|
|
schema=schema,
|
||
|
|
)
|
||
|
|
for uc in uniques:
|
||
|
|
table.append_constraint(
|
||
|
|
sa.UniqueConstraint(*uc["column_names"], name=uc["name"])
|
||
|
|
)
|
||
|
|
orig_meta.create_all()
|
||
|
|
|
||
|
|
inspector = inspect(orig_meta.bind)
|
||
|
|
reflected = sorted(
|
||
|
|
inspector.get_unique_constraints("testtbl", schema=schema),
|
||
|
|
key=operator.itemgetter("name"),
|
||
|
|
)
|
||
|
|
|
||
|
|
names_that_duplicate_index = set()
|
||
|
|
|
||
|
|
for orig, refl in zip(uniques, reflected):
|
||
|
|
# Different dialects handle duplicate index and constraints
|
||
|
|
# differently, so ignore this flag
|
||
|
|
dupe = refl.pop("duplicates_index", None)
|
||
|
|
if dupe:
|
||
|
|
names_that_duplicate_index.add(dupe)
|
||
|
|
eq_(orig, refl)
|
||
|
|
|
||
|
|
reflected_metadata = MetaData()
|
||
|
|
reflected = Table(
|
||
|
|
"testtbl",
|
||
|
|
reflected_metadata,
|
||
|
|
autoload_with=orig_meta.bind,
|
||
|
|
schema=schema,
|
||
|
|
)
|
||
|
|
|
||
|
|
# test "deduplicates for index" logic. MySQL and Oracle
|
||
|
|
# "unique constraints" are actually unique indexes (with possible
|
||
|
|
# exception of a unique that is a dupe of another one in the case
|
||
|
|
# of Oracle). make sure # they aren't duplicated.
|
||
|
|
idx_names = set([idx.name for idx in reflected.indexes])
|
||
|
|
uq_names = set(
|
||
|
|
[
|
||
|
|
uq.name
|
||
|
|
for uq in reflected.constraints
|
||
|
|
if isinstance(uq, sa.UniqueConstraint)
|
||
|
|
]
|
||
|
|
).difference(["unique_c_a_b"])
|
||
|
|
|
||
|
|
assert not idx_names.intersection(uq_names)
|
||
|
|
if names_that_duplicate_index:
|
||
|
|
eq_(names_that_duplicate_index, idx_names)
|
||
|
|
eq_(uq_names, set())
|
||
|
|
|
||
|
|
@testing.requires.check_constraint_reflection
|
||
|
|
def test_get_check_constraints(self):
|
||
|
|
self._test_get_check_constraints()
|
||
|
|
|
||
|
|
@testing.requires.check_constraint_reflection
|
||
|
|
@testing.requires.schemas
|
||
|
|
def test_get_check_constraints_schema(self):
|
||
|
|
self._test_get_check_constraints(schema=testing.config.test_schema)
|
||
|
|
|
||
|
|
@testing.provide_metadata
|
||
|
|
def _test_get_check_constraints(self, schema=None):
|
||
|
|
orig_meta = self.metadata
|
||
|
|
Table(
|
||
|
|
"sa_cc",
|
||
|
|
orig_meta,
|
||
|
|
Column("a", Integer()),
|
||
|
|
sa.CheckConstraint("a > 1 AND a < 5", name="cc1"),
|
||
|
|
sa.CheckConstraint("a = 1 OR (a > 2 AND a < 5)", name="cc2"),
|
||
|
|
schema=schema,
|
||
|
|
)
|
||
|
|
|
||
|
|
orig_meta.create_all()
|
||
|
|
|
||
|
|
inspector = inspect(orig_meta.bind)
|
||
|
|
reflected = sorted(
|
||
|
|
inspector.get_check_constraints("sa_cc", schema=schema),
|
||
|
|
key=operator.itemgetter("name"),
|
||
|
|
)
|
||
|
|
|
||
|
|
# trying to minimize effect of quoting, parenthesis, etc.
|
||
|
|
# may need to add more to this as new dialects get CHECK
|
||
|
|
# constraint reflection support
|
||
|
|
def normalize(sqltext):
|
||
|
|
return " ".join(
|
||
|
|
re.findall(r"and|\d|=|a|or|<|>", sqltext.lower(), re.I)
|
||
|
|
)
|
||
|
|
|
||
|
|
reflected = [
|
||
|
|
{"name": item["name"], "sqltext": normalize(item["sqltext"])}
|
||
|
|
for item in reflected
|
||
|
|
]
|
||
|
|
eq_(
|
||
|
|
reflected,
|
||
|
|
[
|
||
|
|
{"name": "cc1", "sqltext": "a > 1 and a < 5"},
|
||
|
|
{"name": "cc2", "sqltext": "a = 1 or a > 2 and a < 5"},
|
||
|
|
],
|
||
|
|
)
|
||
|
|
|
||
|
|
@testing.provide_metadata
|
||
|
|
def _test_get_view_definition(self, schema=None):
|
||
|
|
meta = self.metadata
|
||
|
|
view_name1 = "users_v"
|
||
|
|
view_name2 = "email_addresses_v"
|
||
|
|
insp = inspect(meta.bind)
|
||
|
|
v1 = insp.get_view_definition(view_name1, schema=schema)
|
||
|
|
self.assert_(v1)
|
||
|
|
v2 = insp.get_view_definition(view_name2, schema=schema)
|
||
|
|
self.assert_(v2)
|
||
|
|
|
||
|
|
@testing.requires.view_reflection
|
||
|
|
def test_get_view_definition(self):
|
||
|
|
self._test_get_view_definition()
|
||
|
|
|
||
|
|
@testing.requires.view_reflection
|
||
|
|
@testing.requires.schemas
|
||
|
|
def test_get_view_definition_with_schema(self):
|
||
|
|
self._test_get_view_definition(schema=testing.config.test_schema)
|
||
|
|
|
||
|
|
@testing.only_on("postgresql", "PG specific feature")
|
||
|
|
@testing.provide_metadata
|
||
|
|
def _test_get_table_oid(self, table_name, schema=None):
|
||
|
|
meta = self.metadata
|
||
|
|
insp = inspect(meta.bind)
|
||
|
|
oid = insp.get_table_oid(table_name, schema)
|
||
|
|
self.assert_(isinstance(oid, int))
|
||
|
|
|
||
|
|
def test_get_table_oid(self):
|
||
|
|
self._test_get_table_oid("users")
|
||
|
|
|
||
|
|
@testing.requires.schemas
|
||
|
|
def test_get_table_oid_with_schema(self):
|
||
|
|
self._test_get_table_oid("users", schema=testing.config.test_schema)
|
||
|
|
|
||
|
|
@testing.requires.table_reflection
|
||
|
|
@testing.provide_metadata
|
||
|
|
def test_autoincrement_col(self):
|
||
|
|
"""test that 'autoincrement' is reflected according to sqla's policy.
|
||
|
|
|
||
|
|
Don't mark this test as unsupported for any backend !
|
||
|
|
|
||
|
|
(technically it fails with MySQL InnoDB since "id" comes before "id2")
|
||
|
|
|
||
|
|
A backend is better off not returning "autoincrement" at all,
|
||
|
|
instead of potentially returning "False" for an auto-incrementing
|
||
|
|
primary key column.
|
||
|
|
|
||
|
|
"""
|
||
|
|
|
||
|
|
meta = self.metadata
|
||
|
|
insp = inspect(meta.bind)
|
||
|
|
|
||
|
|
for tname, cname in [
|
||
|
|
("users", "user_id"),
|
||
|
|
("email_addresses", "address_id"),
|
||
|
|
("dingalings", "dingaling_id"),
|
||
|
|
]:
|
||
|
|
cols = insp.get_columns(tname)
|
||
|
|
id_ = {c["name"]: c for c in cols}[cname]
|
||
|
|
assert id_.get("autoincrement", True)
|
||
|
|
|
||
|
|
|
||
|
|
class NormalizedNameTest(fixtures.TablesTest):
|
||
|
|
__requires__ = ("denormalized_names",)
|
||
|
|
__backend__ = True
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def define_tables(cls, metadata):
|
||
|
|
Table(
|
||
|
|
quoted_name("t1", quote=True),
|
||
|
|
metadata,
|
||
|
|
Column("id", Integer, primary_key=True),
|
||
|
|
)
|
||
|
|
Table(
|
||
|
|
quoted_name("t2", quote=True),
|
||
|
|
metadata,
|
||
|
|
Column("id", Integer, primary_key=True),
|
||
|
|
Column("t1id", ForeignKey("t1.id")),
|
||
|
|
)
|
||
|
|
|
||
|
|
def test_reflect_lowercase_forced_tables(self):
|
||
|
|
|
||
|
|
m2 = MetaData(testing.db)
|
||
|
|
t2_ref = Table(quoted_name("t2", quote=True), m2, autoload=True)
|
||
|
|
t1_ref = m2.tables["t1"]
|
||
|
|
assert t2_ref.c.t1id.references(t1_ref.c.id)
|
||
|
|
|
||
|
|
m3 = MetaData(testing.db)
|
||
|
|
m3.reflect(only=lambda name, m: name.lower() in ("t1", "t2"))
|
||
|
|
assert m3.tables["t2"].c.t1id.references(m3.tables["t1"].c.id)
|
||
|
|
|
||
|
|
def test_get_table_names(self):
|
||
|
|
tablenames = [
|
||
|
|
t
|
||
|
|
for t in inspect(testing.db).get_table_names()
|
||
|
|
if t.lower() in ("t1", "t2")
|
||
|
|
]
|
||
|
|
|
||
|
|
eq_(tablenames[0].upper(), tablenames[0].lower())
|
||
|
|
eq_(tablenames[1].upper(), tablenames[1].lower())
|
||
|
|
|
||
|
|
|
||
|
|
__all__ = ("ComponentReflectionTest", "HasTableTest", "NormalizedNameTest")
|