58 lines
1.7 KiB
Python
58 lines
1.7 KiB
Python
from itertools import chain
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import sqlalchemy as sa
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from sqlalchemy_utils.functions import non_indexed_foreign_keys
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from tests import TestCase
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class TestFindNonIndexedForeignKeys(TestCase):
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def create_models(self):
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class User(self.Base):
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__tablename__ = 'user'
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id = sa.Column(sa.Integer, autoincrement=True, primary_key=True)
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name = sa.Column(sa.Unicode(255))
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class Category(self.Base):
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__tablename__ = 'category'
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id = sa.Column(sa.Integer, primary_key=True)
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name = sa.Column(sa.Unicode(255))
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class Article(self.Base):
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__tablename__ = 'article'
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id = sa.Column(sa.Integer, primary_key=True)
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name = sa.Column(sa.Unicode(255))
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author_id = sa.Column(
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sa.Integer, sa.ForeignKey(User.id), index=True
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)
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category_id = sa.Column(sa.Integer, sa.ForeignKey(Category.id))
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category = sa.orm.relationship(
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Category,
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primaryjoin=category_id == Category.id,
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backref=sa.orm.backref(
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'articles',
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)
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)
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self.User = User
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self.Category = Category
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self.Article = Article
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def test_finds_all_non_indexed_fks(self):
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fks = non_indexed_foreign_keys(self.Base.metadata, self.engine)
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assert (
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'article' in
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fks
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)
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column_names = list(chain(
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*(
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names for names in (
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fk.columns.keys()
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for fk in fks['article']
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)
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)
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))
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assert 'category_id' in column_names
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assert 'author_id' not in column_names
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