103 lines
3.3 KiB
Python
103 lines
3.3 KiB
Python
import sqlalchemy as sa
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from sqlalchemy_utils import get_query_entities
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from tests import TestCase
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class TestGetQueryEntities(TestCase):
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def create_models(self):
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class TextItem(self.Base):
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__tablename__ = 'text_item'
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id = sa.Column(sa.Integer, primary_key=True)
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type = sa.Column(sa.Unicode(255))
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__mapper_args__ = {
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'polymorphic_on': type,
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}
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class Article(TextItem):
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__tablename__ = 'article'
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id = sa.Column(
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sa.Integer, sa.ForeignKey(TextItem.id), primary_key=True
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)
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category = sa.Column(sa.Unicode(255))
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__mapper_args__ = {
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'polymorphic_identity': u'article'
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}
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class BlogPost(TextItem):
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__tablename__ = 'blog_post'
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id = sa.Column(
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sa.Integer, sa.ForeignKey(TextItem.id), primary_key=True
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)
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__mapper_args__ = {
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'polymorphic_identity': u'blog_post'
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}
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self.TextItem = TextItem
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self.Article = Article
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self.BlogPost = BlogPost
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def test_mapper(self):
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query = self.session.query(sa.inspect(self.TextItem))
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assert list(get_query_entities(query)) == [self.TextItem]
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def test_entity(self):
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query = self.session.query(self.TextItem)
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assert list(get_query_entities(query)) == [self.TextItem]
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def test_instrumented_attribute(self):
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query = self.session.query(self.TextItem.id)
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assert list(get_query_entities(query)) == [self.TextItem]
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def test_column(self):
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query = self.session.query(self.TextItem.__table__.c.id)
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assert list(get_query_entities(query)) == [self.TextItem.__table__]
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def test_aliased_selectable(self):
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selectable = sa.orm.with_polymorphic(self.TextItem, [self.BlogPost])
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query = self.session.query(selectable)
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assert list(get_query_entities(query)) == [selectable]
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def test_joined_entity(self):
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query = self.session.query(self.TextItem).join(
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self.BlogPost, self.BlogPost.id == self.TextItem.id
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)
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assert list(get_query_entities(query)) == [
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self.TextItem, self.BlogPost
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]
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def test_joined_aliased_entity(self):
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alias = sa.orm.aliased(self.BlogPost)
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query = self.session.query(self.TextItem).join(
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alias, alias.id == self.TextItem.id
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)
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assert list(get_query_entities(query)) == [self.TextItem, alias]
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def test_column_entity_with_label(self):
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query = self.session.query(self.Article.id.label('id'))
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assert list(get_query_entities(query)) == [sa.inspect(self.Article)]
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def test_with_subquery(self):
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number_of_articles = (
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sa.select(
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[sa.func.count(self.Article.id)],
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)
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.select_from(
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self.Article.__table__
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)
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).label('number_of_articles')
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query = self.session.query(self.Article, number_of_articles)
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assert list(get_query_entities(query)) == [
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self.Article,
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number_of_articles
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]
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def test_aliased_entity(self):
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alias = sa.orm.aliased(self.Article)
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query = self.session.query(alias)
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assert list(get_query_entities(query)) == [alias]
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