def test_numerical_column_names_uniqueness(self):
for model_name in ("BalanceSheet", "CashFlow", "IncomeStatement"):
names = models.get_numerical_column_names(model_name)
self.assertTrue(
len(names) == len(set(names)),
"two verbose column names in {0} are mapped to the same pythonic name!".format(model_name)
)
def load_fundamental_data(data_type, symbol, columns=None):
""" Returns a DataFrame object containing <data_type> fundamental data of <symbol> with <columns>.
data_type: name of *_updated_at fields in Symbol model without _updated_at
symbol: e.g. 'C6L.SI'
columns: a sequence of column names as defined in fa.database.*_numerical_columns modules.
Default: None - include all.
"""
if columns is None:
model_name = data_type.replace("_", "")
columns = get_numerical_column_names(model_name)
columns = ["Date"] + list(columns)
field_names = [to_pythonic_name(c) for c in columns]
records = list(get_fundamentals(data_type, symbol, field_names))
return pd.DataFrame.from_records(records, columns=columns, index="Date")
def test_get_numerical_column_names(self):
with patch("fa.database.balancesheet_numerical_columns.verbose_names", ["abc", "def"]):
names = models.get_numerical_column_names("BalanceSheet")
self.assertEqual(names, ["abc", "def"])