def test_distinct(self): ss = SelectStatement('table', distinct_fields=['field2']) ss.add_where_clause(WhereClause('field1', EqualsOperator(), 'b')) self.assertEqual(six.text_type(ss), 'SELECT DISTINCT "field2" FROM table WHERE "field1" = %(0)s', six.text_type(ss)) ss = SelectStatement('table', distinct_fields=['field1', 'field2']) self.assertEqual(six.text_type(ss), 'SELECT DISTINCT "field1", "field2" FROM table')
def test_count(self): ss = SelectStatement('table', count=True, limit=10, order_by='d') ss.add_where(Column(db_field='a'), EqualsOperator(), 'b') self.assertEqual( six.text_type(ss), 'SELECT COUNT(*) FROM table WHERE "a" = %(0)s LIMIT 10', six.text_type(ss)) self.assertIn('LIMIT', six.text_type(ss)) self.assertNotIn('ORDER', six.text_type(ss))
def test_distinct(self): ss = SelectStatement('table', distinct_fields=['field2']) ss.add_where(Column(db_field='field1'), EqualsOperator(), 'b') self.assertEqual(six.text_type(ss), 'SELECT DISTINCT "field2" FROM table WHERE "field1" = %(0)s', six.text_type(ss)) ss = SelectStatement('table', distinct_fields=['field1', 'field2']) self.assertEqual(six.text_type(ss), 'SELECT DISTINCT "field1", "field2" FROM table') ss = SelectStatement('table', distinct_fields=['field1'], count=True) self.assertEqual(six.text_type(ss), 'SELECT DISTINCT COUNT("field1") FROM table')
def test_limit_rendering(self): ss = SelectStatement('table', None, limit=10) qstr = six.text_type(ss) self.assertIn('LIMIT 10', qstr) ss = SelectStatement('table', None, limit=0) qstr = six.text_type(ss) self.assertNotIn('LIMIT', qstr) ss = SelectStatement('table', None, limit=None) qstr = six.text_type(ss) self.assertNotIn('LIMIT', qstr)
def test_field_rendering(self): """ tests that fields are properly added to the select statement """ ss = SelectStatement('table', ['f1', 'f2']) self.assertTrue( six.text_type(ss).startswith('SELECT "f1", "f2"'), six.text_type(ss)) self.assertTrue(str(ss).startswith('SELECT "f1", "f2"'), str(ss))
def _verify_statement(self, original): st = SelectStatement(self.table_name) result = execute(st) response = result[0] for assignment in original.assignments: self.assertEqual(response[assignment.field], assignment.value) self.assertEqual(len(response), 7)
def test_distinct(self): ss = SelectStatement('table', distinct_fields=['field2']) ss.add_where(Column(db_field='field1'), EqualsOperator(), 'b') self.assertEqual(six.text_type(ss), 'SELECT DISTINCT "field2" FROM table WHERE "field1" = %(0)s', six.text_type(ss)) ss = SelectStatement('table', distinct_fields=['field1', 'field2']) self.assertEqual(six.text_type(ss), 'SELECT DISTINCT "field1", "field2" FROM table') ss = SelectStatement('table', distinct_fields=['field1'], count=True) self.assertEqual(six.text_type(ss), 'SELECT DISTINCT COUNT("field1") FROM table')
def test_context_id_update(self): """ tests that the right things happen the the context id """ ss = SelectStatement('table') ss.add_where_clause(WhereClause('a', EqualsOperator(), 'b')) self.assertEqual(ss.get_context(), {'0': 'b'}) self.assertEqual(str(ss), 'SELECT * FROM table WHERE "a" = %(0)s') ss.update_context_id(5) self.assertEqual(ss.get_context(), {'5': 'b'}) self.assertEqual(str(ss), 'SELECT * FROM table WHERE "a" = %(5)s')
def test_additional_rendering(self): ss = SelectStatement('table', None, order_by=['x', 'y'], limit=15, allow_filtering=True) qstr = six.text_type(ss) self.assertIn('LIMIT 15', qstr) self.assertIn('ORDER BY x, y', qstr) self.assertIn('ALLOW FILTERING', qstr)
def _select_query(self): """ Returns a select clause based on the given filter args """ if self._where: self._validate_select_where() return SelectStatement(self.column_family_name, fields=self._select_fields(), where=self._where, order_by=self._order, limit=self._limit, allow_filtering=self._allow_filtering)
def test_context_id_update(self): """ tests that the right things happen the the context id """ ss = SelectStatement('table') ss.add_where(Column(db_field='a'), EqualsOperator(), 'b') self.assertEqual(ss.get_context(), {'0': 'b'}) self.assertEqual(str(ss), 'SELECT * FROM table WHERE "a" = %(0)s') ss.update_context_id(5) self.assertEqual(ss.get_context(), {'5': 'b'}) self.assertEqual(str(ss), 'SELECT * FROM table WHERE "a" = %(5)s')
def test_like_operator(self): """ Test to verify the like operator works appropriately @since 3.13 @jira_ticket PYTHON-512 @expected_result the expected row is read using LIKE @test_category data_types:object_mapper """ cluster = TestCluster() session = cluster.connect() self.addCleanup(cluster.shutdown) session.execute("""CREATE CUSTOM INDEX text_index ON {} (text) USING 'org.apache.cassandra.index.sasi.SASIIndex';""" .format(self.table_name)) self.addCleanup(session.execute, "DROP INDEX {}.text_index".format(DEFAULT_KEYSPACE)) partition = uuid4() cluster = 1 self._insert_statement(partition, cluster) ss = SelectStatement(self.table_name) like_clause = "text_for_%" ss.add_where(Column(db_field='text'), LikeOperator(), like_clause) self.assertEqual( six.text_type(ss), 'SELECT * FROM {} WHERE "text" LIKE %(0)s'.format(self.table_name)) result = execute(ss) self.assertEqual(result[0]["text"], self.text) q = TestQueryUpdateModel.objects.filter( text__like=like_clause).allow_filtering() self.assertEqual(q[0].text, self.text) q = TestQueryUpdateModel.objects.filter(text__like=like_clause) self.assertEqual(q[0].text, self.text)
def test_like_operator(self): """ Test to verify the like operator works appropriately @since 3.13 @jira_ticket PYTHON-512 @expected_result the expected row is read using LIKE @test_category data_types:object_mapper """ cluster = Cluster() session = cluster.connect() self.addCleanup(cluster.shutdown) session.execute("""CREATE CUSTOM INDEX text_index ON {} (text) USING 'org.apache.cassandra.index.sasi.SASIIndex';""".format(self.table_name)) self.addCleanup(session.execute, "DROP INDEX {}.text_index".format(DEFAULT_KEYSPACE)) partition = uuid4() cluster = 1 self._insert_statement(partition, cluster) ss = SelectStatement(self.table_name) like_clause = "text_for_%" ss.add_where(Column(db_field='text'), LikeOperator(), like_clause) self.assertEqual(six.text_type(ss), 'SELECT * FROM {} WHERE "text" LIKE %(0)s'.format(self.table_name)) result = execute(ss) self.assertEqual(result[0]["text"], self.text) q = TestQueryUpdateModel.objects.filter(text__like=like_clause).allow_filtering() self.assertEqual(q[0].text, self.text) q = TestQueryUpdateModel.objects.filter(text__like=like_clause) self.assertEqual(q[0].text, self.text)
def test_partition_key_index(self): """ Test to ensure that statement partition key generation is in the correct order @since 3.2 @jira_ticket PYTHON-535 @expected_result . @test_category object_mapper """ self._check_partition_value_generation( BasicModel, SelectStatement(BasicModel.__table_name__)) self._check_partition_value_generation( BasicModel, DeleteStatement(BasicModel.__table_name__)) self._check_partition_value_generation( BasicModelMulti, SelectStatement(BasicModelMulti.__table_name__)) self._check_partition_value_generation( BasicModelMulti, DeleteStatement(BasicModelMulti.__table_name__)) self._check_partition_value_generation( ComplexModelRouting, SelectStatement(ComplexModelRouting.__table_name__)) self._check_partition_value_generation( ComplexModelRouting, DeleteStatement(ComplexModelRouting.__table_name__)) self._check_partition_value_generation(BasicModel, SelectStatement( BasicModel.__table_name__), reverse=True) self._check_partition_value_generation(BasicModel, DeleteStatement( BasicModel.__table_name__), reverse=True) self._check_partition_value_generation( BasicModelMulti, SelectStatement(BasicModelMulti.__table_name__), reverse=True) self._check_partition_value_generation( BasicModelMulti, DeleteStatement(BasicModelMulti.__table_name__), reverse=True) self._check_partition_value_generation( ComplexModelRouting, SelectStatement(ComplexModelRouting.__table_name__), reverse=True) self._check_partition_value_generation( ComplexModelRouting, DeleteStatement(ComplexModelRouting.__table_name__), reverse=True)
async def async_iterate(cls, fetch_size: int, fields: list = None, limit: int = None): """Iteration by fetch_size """ statement = SimpleStatement(str( SelectStatement(cls.column_family_name(), fields=fields, limit=limit)), fetch_size=fetch_size) connection = conn.get_connection() paging_state = None while True: # Execute query result_set = await connection.session.execute_future( statement, paging_state=paging_state) yield [cls(**result) for result in result_set.current_rows] paging_state = result_set.paging_state # End if paging_state is None: break
def test_context(self): ss = SelectStatement('table') ss.add_where(Column(db_field='a'), EqualsOperator(), 'b') self.assertEqual(ss.get_context(), {'0': 'b'})
def test_count(self): ss = SelectStatement('table', count=True, limit=10, order_by='d') ss.add_where(Column(db_field='a'), EqualsOperator(), 'b') self.assertEqual(six.text_type(ss), 'SELECT COUNT(*) FROM table WHERE "a" = %(0)s LIMIT 10', six.text_type(ss)) self.assertIn('LIMIT', six.text_type(ss)) self.assertNotIn('ORDER', six.text_type(ss))
def test_single_field_is_listified(self): """ tests that passing a string field into the constructor puts it into a list """ ss = SelectStatement('table', 'field') self.assertEqual(ss.fields, ['field'])
def test_context(self): ss = SelectStatement('table') ss.add_where_clause(WhereClause('a', EqualsOperator(), 'b')) self.assertEqual(ss.get_context(), {'0': 'b'})
def test_where_clause_rendering(self): ss = SelectStatement('table') ss.add_where_clause(WhereClause('a', EqualsOperator(), 'b')) self.assertEqual(six.text_type(ss), 'SELECT * FROM table WHERE "a" = %(0)s', six.text_type(ss))
def test_table_rendering(self): ss = SelectStatement('table') self.assertTrue(six.text_type(ss).startswith('SELECT * FROM table'), six.text_type(ss)) self.assertTrue(str(ss).startswith('SELECT * FROM table'), str(ss))
def test_none_fields_rendering(self): """ tests that a '*' is added if no fields are passed in """ ss = SelectStatement('table') self.assertTrue(six.text_type(ss).startswith('SELECT *'), six.text_type(ss)) self.assertTrue(str(ss).startswith('SELECT *'), str(ss))
def test_where_clause_rendering(self): ss = SelectStatement('table') ss.add_where(Column(db_field='a'), EqualsOperator(), 'b') self.assertEqual(six.text_type(ss), 'SELECT * FROM table WHERE "a" = %(0)s', six.text_type(ss))
def test_context(self): ss = SelectStatement('table') ss.add_where_clause(WhereClause('a', EqualsOperator(), 'b')) self.assertEqual(ss.get_context(), {'0': 'b'})
def test_context(self): ss = SelectStatement('table') ss.add_where(Column(db_field='a'), EqualsOperator(), 'b') self.assertEqual(ss.get_context(), {'0': 'b'})