def from_sqlite(cls,
fp: PathSpecifier,
config: StoreConfigMapInitializer = None) -> 'Bus':
store = StoreSQLite(fp)
return cls(cls._deferred_series(store.labels()),
store=store,
config=config)
def test_store_sqlite_read_many_a(self) -> None:
f1 = Frame.from_dict(dict(x=(1, 2, -5, 200), y=(3, 4, -5, -3000)),
index=IndexHierarchy.from_product(('I', 'II'),
('a', 'b')),
name='f1')
f2 = Frame.from_dict(dict(a=(1, 2, 3), b=(4, 5, 6)),
index=('x', 'y', 'z'),
name='f2')
f3 = Frame.from_records(((10, 20, 50, 60), (50.0, 60.4, -50, -60)),
index=('p', 'q'),
columns=IndexHierarchy.from_product(
('I', 'II'), ('a', 'b')),
name='f3')
f4 = Frame.from_records(
(
(10, 20, 50, False, 10, 20, 50, False),
(50.0, 60.4, -50, True, 50.0, 60.4, -50, True),
(234, 44452, 0, False, 234, 44452, 0, False),
(4, -4, 2000, True, 4, -4, 2000, True),
(10, 20, 50, False, 10, 20, 50, False),
(50.0, 60.4, -50, True, 50.0, 60.4, -50, True),
(234, 44452, 0, False, 234, 44452, 0, False),
(4, -4, 2000, True, 4, -4, 2000, True),
),
index=IndexHierarchy.from_product(
('top', 'bottom'), ('far', 'near'), ('left', 'right')),
columns=IndexHierarchy.from_product(('I', 'II'), ('a', 'b'),
(1, 2)),
name='f4')
frames = (f1, f2, f3, f4)
config_map_write = StoreConfigMap.from_config(
StoreConfig(include_index=True, include_columns=True))
with temp_file('.sqlite') as fp:
st1 = StoreSQLite(fp)
st1.write(((f.name, f) for f in frames), config=config_map_write)
labels = tuple(
st1.labels()) # this will read from file, not in memory
self.assertEqual(tuple(f.name for f in frames), labels)
config_map_read: tp.Dict[tp.Hashable, StoreConfig] = {}
for i, name in enumerate(labels):
f_src = frames[i]
c = StoreConfig(index_depth=f_src.index.depth,
columns_depth=f_src.columns.depth)
config_map_read[name] = c
for i, f_loaded in enumerate(
st1.read_many(labels, config=config_map_read)):
f_src = frames[i]
self.assertEqualFrames(f_src, f_loaded, compare_dtype=False)
def test_store_sqlite_write_a(self) -> None:
f1 = Frame.from_dict(dict(x=(None, -np.inf, np.inf, None),
y=(3, 4, -5, -3000)),
index=IndexHierarchy.from_product(('I', 'II'),
('a', 'b')),
name='f1')
f2 = Frame.from_dict(dict(a=(1, 2, 3), b=(4, 5, 6)),
index=('x', 'y', 'z'),
name='f2')
f3 = Frame.from_records(((10.4, 20.1, 50, 60), (50.1, 60.4, -50, -60)),
index=('p', 'q'),
columns=IndexHierarchy.from_product(
('I', 'II'), ('a', 'b')),
name='f3')
f4 = Frame.from_records(
(
(10, 20, 50, False, 10, 20, 50, False),
(50.0, 60.4, -50, True, 50.0, 60.4, -50, True),
(234, 44452, 0, False, 234, 44452, 0, False),
(4, -4, 2000, True, 4, -4, 2000, True),
(10, 20, 50, False, 10, 20, 50, False),
(50.0, 60.4, -50, True, 50.0, 60.4, -50, True),
(234, 44452, 0, False, 234, 44452, 0, False),
(4, -4, 2000, True, 4, -4, 2000, True),
),
index=IndexHierarchy.from_product(
('top', 'bottom'), ('far', 'near'), ('left', 'right')),
columns=IndexHierarchy.from_product(('I', 'II'), ('a', 'b'),
(1, 2)),
name='f4')
frames = (f1, f2, f3, f4)
with temp_file('.sqlite') as fp:
st1 = StoreSQLite(fp)
st1.write((f.name, f) for f in frames)
sheet_names = tuple(
st1.labels()) # this will read from file, not in memory
self.assertEqual(tuple(f.name for f in frames), sheet_names)
for i, name in enumerate(sheet_names):
f_src = frames[i]
config = StoreConfig.from_frame(f_src)
f_loaded = st1.read(name, config=config)
self.assertEqualFrames(f_src, f_loaded)
def test_store_sqlite_write_f(self) -> None:
f1 = Frame.from_dict(dict(a=(1, 2, 3), b=(4, 5, 6)),
index=('x', 'y', 'z'),
name='f2')
frames = (f1, )
with temp_file('.sqlite') as fp:
config = StoreConfig(include_index=False)
st1 = StoreSQLite(fp)
st1.write(((f.name, f) for f in frames), config=config)
# prove that writing to the same path re-writes
st2 = StoreSQLite(fp)
st2.write(((f.name, f) for f in frames), config=config)
self.assertEqual(list(st2.labels()), ['f2'])
def from_sqlite(cls, fp: PathSpecifier) -> 'Bus':
store = StoreSQLite(fp)
return cls(cls._deferred_series(store.labels()), store=store)