sqlalchemy/test/dialect/mysql/test_query.py

# coding: utf-8

from sqlalchemy import all_
from sqlalchemy import and_
from sqlalchemy import any_
from sqlalchemy import Boolean
from sqlalchemy import cast
from sqlalchemy import Column
from sqlalchemy import false
from sqlalchemy import ForeignKey
from sqlalchemy import Integer
from sqlalchemy import MetaData
from sqlalchemy import or_
from sqlalchemy import select
from sqlalchemy import String
from sqlalchemy import Table
from sqlalchemy import testing
from sqlalchemy import true
from sqlalchemy.testing import eq_
from sqlalchemy.testing import fixtures
from sqlalchemy.testing import is_


class IdiosyncrasyTest(fixtures.TestBase):
    __only_on__ = "mysql", "mariadb"
    __backend__ = True

    @testing.emits_warning()
    def test_is_boolean_symbols_despite_no_native(self, connection):

        is_(
            connection.scalar(select(cast(true().is_(true()), Boolean))), True,
        )

        is_(
            connection.scalar(select(cast(true().isnot(true()), Boolean))),
            False,
        )

        is_(
            connection.scalar(select(cast(false().is_(false()), Boolean))),
            True,
        )


class MatchTest(fixtures.TestBase):
    __only_on__ = "mysql", "mariadb"
    __backend__ = True

    @classmethod
    def setup_class(cls):
        global metadata, cattable, matchtable
        metadata = MetaData(testing.db)

        cattable = Table(
            "cattable",
            metadata,
            Column("id", Integer, primary_key=True),
            Column("description", String(50)),
            mysql_engine="MyISAM",
            mariadb_engine="MyISAM",
        )
        matchtable = Table(
            "matchtable",
            metadata,
            Column("id", Integer, primary_key=True),
            Column("title", String(200)),
            Column("category_id", Integer, ForeignKey("cattable.id")),
            mysql_engine="MyISAM",
            mariadb_engine="MyISAM",
        )
        metadata.create_all()

        cattable.insert().execute(
            [
                {"id": 1, "description": "Python"},
                {"id": 2, "description": "Ruby"},
            ]
        )
        matchtable.insert().execute(
            [
                {
                    "id": 1,
                    "title": "Agile Web Development with Ruby On Rails",
                    "category_id": 2,
                },
                {"id": 2, "title": "Dive Into Python", "category_id": 1},
                {
                    "id": 3,
                    "title": "Programming Matz's Ruby",
                    "category_id": 2,
                },
                {
                    "id": 4,
                    "title": "The Definitive Guide to Django",
                    "category_id": 1,
                },
                {"id": 5, "title": "Python in a Nutshell", "category_id": 1},
            ]
        )

    @classmethod
    def teardown_class(cls):
        metadata.drop_all()

    def test_simple_match(self):
        results = (
            matchtable.select()
            .where(matchtable.c.title.match("python"))
            .order_by(matchtable.c.id)
            .execute()
            .fetchall()
        )
        eq_([2, 5], [r.id for r in results])

    def test_not_match(self):
        results = (
            matchtable.select()
            .where(~matchtable.c.title.match("python"))
            .order_by(matchtable.c.id)
            .execute()
            .fetchall()
        )
        eq_([1, 3, 4], [r.id for r in results])

    def test_simple_match_with_apostrophe(self):
        results = (
            matchtable.select()
            .where(matchtable.c.title.match("Matz's"))
            .execute()
            .fetchall()
        )
        eq_([3], [r.id for r in results])

    def test_return_value(self, connection):
        # test [ticket:3263]
        result = connection.execute(
            select(
                matchtable.c.title.match("Agile Ruby Programming").label(
                    "ruby"
                ),
                matchtable.c.title.match("Dive Python").label("python"),
                matchtable.c.title,
            ).order_by(matchtable.c.id)
        ).fetchall()
        eq_(
            result,
            [
                (2.0, 0.0, "Agile Web Development with Ruby On Rails"),
                (0.0, 2.0, "Dive Into Python"),
                (2.0, 0.0, "Programming Matz's Ruby"),
                (0.0, 0.0, "The Definitive Guide to Django"),
                (0.0, 1.0, "Python in a Nutshell"),
            ],
        )

    def test_or_match(self):
        results1 = (
            matchtable.select()
            .where(
                or_(
                    matchtable.c.title.match("nutshell"),
                    matchtable.c.title.match("ruby"),
                )
            )
            .order_by(matchtable.c.id)
            .execute()
            .fetchall()
        )
        eq_([1, 3, 5], [r.id for r in results1])
        results2 = (
            matchtable.select()
            .where(matchtable.c.title.match("nutshell ruby"))
            .order_by(matchtable.c.id)
            .execute()
            .fetchall()
        )
        eq_([1, 3, 5], [r.id for r in results2])

    def test_and_match(self):
        results1 = (
            matchtable.select()
            .where(
                and_(
                    matchtable.c.title.match("python"),
                    matchtable.c.title.match("nutshell"),
                )
            )
            .execute()
            .fetchall()
        )
        eq_([5], [r.id for r in results1])
        results2 = (
            matchtable.select()
            .where(matchtable.c.title.match("+python +nutshell"))
            .execute()
            .fetchall()
        )
        eq_([5], [r.id for r in results2])

    def test_match_across_joins(self):
        results = (
            matchtable.select()
            .where(
                and_(
                    cattable.c.id == matchtable.c.category_id,
                    or_(
                        cattable.c.description.match("Ruby"),
                        matchtable.c.title.match("nutshell"),
                    ),
                )
            )
            .order_by(matchtable.c.id)
            .execute()
            .fetchall()
        )
        eq_([1, 3, 5], [r.id for r in results])


class AnyAllTest(fixtures.TablesTest):
    __only_on__ = "mysql", "mariadb"
    __backend__ = True

    @classmethod
    def define_tables(cls, metadata):
        Table(
            "stuff",
            metadata,
            Column("id", Integer, primary_key=True),
            Column("value", Integer),
        )

    @classmethod
    def insert_data(cls, connection):
        stuff = cls.tables.stuff
        connection.execute(
            stuff.insert(),
            [
                {"id": 1, "value": 1},
                {"id": 2, "value": 2},
                {"id": 3, "value": 3},
                {"id": 4, "value": 4},
                {"id": 5, "value": 5},
            ],
        )

    def test_any_w_comparator(self, connection):
        stuff = self.tables.stuff
        stmt = select(stuff.c.id).where(
            stuff.c.value > any_(select(stuff.c.value).scalar_subquery())
        )

        eq_(connection.execute(stmt).fetchall(), [(2,), (3,), (4,), (5,)])

    def test_all_w_comparator(self, connection):
        stuff = self.tables.stuff
        stmt = select(stuff.c.id).where(
            stuff.c.value >= all_(select(stuff.c.value).scalar_subquery())
        )

        eq_(connection.execute(stmt).fetchall(), [(5,)])

    def test_any_literal(self, connection):
        stuff = self.tables.stuff
        stmt = select([4 == any_(select(stuff.c.value).scalar_subquery())])

        is_(connection.execute(stmt).scalar(), True)