Python sqlalchemy.sql.schema.Column() Examples
The following are 8
code examples of sqlalchemy.sql.schema.Column().
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Example #1
| Source File: base.py From safrs with GNU General Public License v3.0 | 6 votes |
|
def _s_columns(cls):
"""
:return: list of columns that are exposed by the api
"""
mapper = getattr(cls, "__mapper__", None)
if mapper is None:
return []
result = cls.__mapper__.columns
if has_request_context():
# In the web context we only return the attributes that are exposable and readable
# i.e. where the "expose" attribute is set on the db.Column instance
# and the "r" flag is in the permissions
result = [c for c in result if cls._s_check_perm(c.name)]
return result
Example #2
| Source File: sqlalchemy_bigquery.py From pybigquery with MIT License | 5 votes |
|
def __init__(self, dialect, statement, column_keys=None,
inline=False, **kwargs):
if isinstance(statement, Column):
kwargs['compile_kwargs'] = util.immutabledict({'include_table': False})
super(BigQueryCompiler, self).__init__(dialect, statement, column_keys, inline, **kwargs)
Example #3
| Source File: test_sqlalchemy_athena.py From PyAthena with MIT License | 5 votes |
|
def test_reflect_select(self, engine, conn):
one_row_complex = Table("one_row_complex", MetaData(bind=engine), autoload=True)
self.assertEqual(len(one_row_complex.c), 15)
self.assertIsInstance(one_row_complex.c.col_string, Column)
rows = one_row_complex.select().execute().fetchall()
self.assertEqual(len(rows), 1)
self.assertEqual(
list(rows[0]),
[
True,
127,
32767,
2147483647,
9223372036854775807,
0.5,
0.25,
"a string",
datetime(2017, 1, 1, 0, 0, 0),
date(2017, 1, 2),
b"123",
"[1, 2]",
"{1=2, 3=4}",
"{a=1, b=2}",
Decimal("0.1"),
],
)
self.assertIsInstance(one_row_complex.c.col_boolean.type, BOOLEAN)
self.assertIsInstance(one_row_complex.c.col_tinyint.type, INTEGER)
self.assertIsInstance(one_row_complex.c.col_smallint.type, INTEGER)
self.assertIsInstance(one_row_complex.c.col_int.type, INTEGER)
self.assertIsInstance(one_row_complex.c.col_bigint.type, BIGINT)
self.assertIsInstance(one_row_complex.c.col_float.type, FLOAT)
self.assertIsInstance(one_row_complex.c.col_double.type, FLOAT)
self.assertIsInstance(one_row_complex.c.col_string.type, type(STRINGTYPE))
self.assertIsInstance(one_row_complex.c.col_timestamp.type, TIMESTAMP)
self.assertIsInstance(one_row_complex.c.col_date.type, DATE)
self.assertIsInstance(one_row_complex.c.col_binary.type, BINARY)
self.assertIsInstance(one_row_complex.c.col_array.type, type(STRINGTYPE))
self.assertIsInstance(one_row_complex.c.col_map.type, type(STRINGTYPE))
self.assertIsInstance(one_row_complex.c.col_struct.type, type(STRINGTYPE))
self.assertIsInstance(one_row_complex.c.col_decimal.type, DECIMAL)
Example #4
| Source File: test_sqlalchemy_athena.py From PyAthena with MIT License | 5 votes |
|
def test_reserved_words(self, engine, conn):
"""Presto uses double quotes, not backticks"""
fake_table = Table(
"select", MetaData(bind=engine), Column("current_timestamp", STRINGTYPE)
)
query = str(fake_table.select(fake_table.c.current_timestamp == "a"))
self.assertIn('"select"', query)
self.assertIn('"current_timestamp"', query)
self.assertNotIn("`select`", query)
self.assertNotIn("`current_timestamp`", query)
Example #5
| Source File: database.py From sample-platform with ISC License | 5 votes |
|
def _set_table(self, table: Column, column: Table) -> None:
self.impl._set_table(table, column)
Example #6
| Source File: test_sqlalchemy_athena.py From PyAthenaJDBC with MIT License | 5 votes |
|
def test_reflect_select(self, engine, conn):
one_row_complex = Table("one_row_complex", MetaData(bind=engine), autoload=True)
self.assertEqual(len(one_row_complex.c), 15)
self.assertIsInstance(one_row_complex.c.col_string, Column)
rows = one_row_complex.select().execute().fetchall()
self.assertEqual(len(rows), 1)
self.assertEqual(
list(rows[0]),
[
True,
127,
32767,
2147483647,
9223372036854775807,
0.5,
0.25,
"a string",
datetime(2017, 1, 1, 0, 0, 0),
date(2017, 1, 2),
b"123",
"1, 2",
"{1=2, 3=4}",
"{a=1, b=2}",
Decimal("0.100000"),
],
)
self.assertIsInstance(one_row_complex.c.col_boolean.type, BOOLEAN)
self.assertIsInstance(one_row_complex.c.col_tinyint.type, INTEGER)
self.assertIsInstance(one_row_complex.c.col_smallint.type, INTEGER)
self.assertIsInstance(one_row_complex.c.col_int.type, INTEGER)
self.assertIsInstance(one_row_complex.c.col_bigint.type, BIGINT)
self.assertIsInstance(one_row_complex.c.col_float.type, FLOAT)
self.assertIsInstance(one_row_complex.c.col_double.type, FLOAT)
self.assertIsInstance(one_row_complex.c.col_string.type, type(STRINGTYPE))
self.assertIsInstance(one_row_complex.c.col_timestamp.type, TIMESTAMP)
self.assertIsInstance(one_row_complex.c.col_date.type, DATE)
self.assertIsInstance(one_row_complex.c.col_binary.type, BINARY)
self.assertIsInstance(one_row_complex.c.col_array.type, type(STRINGTYPE))
self.assertIsInstance(one_row_complex.c.col_map.type, type(STRINGTYPE))
self.assertIsInstance(one_row_complex.c.col_struct.type, type(STRINGTYPE))
self.assertIsInstance(one_row_complex.c.col_decimal.type, DECIMAL)
Example #7
| Source File: test_sqlalchemy_athena.py From PyAthenaJDBC with MIT License | 5 votes |
|
def test_reserved_words(self, engine, conn):
"""Presto uses double quotes, not backticks"""
fake_table = Table(
"select", MetaData(bind=engine), Column("current_timestamp", STRINGTYPE)
)
query = str(fake_table.select(fake_table.c.current_timestamp == "a"))
self.assertIn('"select"', query)
self.assertIn('"current_timestamp"', query)
self.assertNotIn("`select`", query)
self.assertNotIn("`current_timestamp`", query)
Example #8
| Source File: sql.py From kotori with GNU Affero General Public License v3.0 | 4 votes |
|
def __init__(self, config):
ApplicationSession.__init__(self, config)
self.count = 0
self.engine = None
metadata = MetaData()
self.telemetry = Table("telemetry", metadata,
Column("id", Integer(), primary_key=True),
Column("MSG_ID", Integer()),
Column("V_FC", Integer()),
Column("V_CAP", Integer()),
Column("A_ENG", Integer()),
Column("A_CAP", Integer()),
Column("T_O2_In", Integer()),
Column("T_O2_Out", Integer()),
Column("T_FC_H2O_Out", Integer()),
Column("Water_In", Integer()),
Column("Water_Out", Integer()),
Column("Master_SW", Integer()),
Column("CAP_Down_SW", Integer()),
Column("Drive_SW", Integer()),
Column("FC_state", Integer()),
Column("Mosfet_state", Integer()),
Column("Safety_state", Integer()),
Column("Air_Pump_load", Numeric()),
Column("Mosfet_load", Integer()),
Column("Water_Pump_load", Integer()),
Column("Fan_load", Integer()),
Column("Acc_X", Integer()),
Column("Acc_Y", Integer()),
Column("Acc_Z", Integer()),
Column("AUX", Numeric()),
Column("GPS_X", Integer()),
Column("GPS_Y", Integer()),
Column("GPS_Z", Integer()),
Column("GPS_Speed", Integer()),
Column("V_Safety", Integer()),
Column("H2_Level", Integer()),
Column("O2_calc", Numeric()),
Column("lat", Numeric()),
Column("lng", Numeric()),
)
# metadata = MetaData()
# self.telemetry = Table("telemetry", metadata,
# Column("id", Integer(), primary_key=True),
# Column("mma_x", Integer()),
# Column("mma_y", Integer()),
# Column("temp", Numeric()),
# Column("lat", Numeric()),
# Column("lng", Numeric()),
# )
#@inlineCallbacks
