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import sqlalchemy as sa
from sqlalchemy_utils.functions.sort_query import make_order_by_deterministic
from tests import assert_contains, TestCase
class TestMakeOrderByDeterministic(TestCase):
def create_models(self):
class User(self.Base):
__tablename__ = 'user'
id = sa.Column(sa.Integer, primary_key=True)
name = sa.Column(sa.Unicode)
email = sa.Column(sa.Unicode, unique=True)
email_lower = sa.orm.column_property(
sa.func.lower(name)
)
class Article(self.Base):
__tablename__ = 'article'
id = sa.Column(sa.Integer, primary_key=True)
author_id = sa.Column(sa.Integer, sa.ForeignKey('user.id'))
author = sa.orm.relationship(User)
User.article_count = sa.orm.column_property(
sa.select([sa.func.count()], from_obj=Article)
.where(Article.author_id == User.id)
.label('article_count')
)
self.User = User
self.Article = Article
def test_column_property(self):
query = self.session.query(self.User).order_by(self.User.email_lower)
query = make_order_by_deterministic(query)
assert_contains('lower("user".name), "user".id ASC', query)
def test_unique_column(self):
query = self.session.query(self.User).order_by(self.User.email)
query = make_order_by_deterministic(query)
assert str(query).endswith('ORDER BY "user".email')
def test_non_unique_column(self):
query = self.session.query(self.User).order_by(self.User.name)
query = make_order_by_deterministic(query)
assert_contains('ORDER BY "user".name, "user".id ASC', query)
def test_descending_order_by(self):
query = self.session.query(self.User).order_by(
sa.desc(self.User.name)
)
query = make_order_by_deterministic(query)
assert_contains('ORDER BY "user".name DESC, "user".id DESC', query)
def test_ascending_order_by(self):
query = self.session.query(self.User).order_by(
sa.asc(self.User.name)
)
query = make_order_by_deterministic(query)
assert_contains('ORDER BY "user".name ASC, "user".id ASC', query)
def test_string_order_by(self):
query = self.session.query(self.User).order_by('name')
query = make_order_by_deterministic(query)
assert_contains('ORDER BY "user".name, "user".id ASC', query)
def test_annotated_label(self):
query = self.session.query(self.User).order_by(self.User.article_count)
query = make_order_by_deterministic(query)
assert_contains('article_count, "user".id ASC', query)
def test_annotated_label_with_descending_order(self):
query = self.session.query(self.User).order_by(
sa.desc(self.User.article_count)
)
query = make_order_by_deterministic(query)
assert_contains('ORDER BY article_count DESC, "user".id DESC', query)
def test_query_without_order_by(self):
query = self.session.query(self.User)
query = make_order_by_deterministic(query)
assert 'ORDER BY "user".id' in str(query)
def test_alias(self):
alias = sa.orm.aliased(self.User.__table__)
query = self.session.query(alias).order_by(alias.c.name)
query = make_order_by_deterministic(query)
assert str(query).endswith('ORDER BY user_1.name, "user".id ASC')
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