def test_target_multiple_as(self):
self.assertParse(
qSelect([
qp.Target(qp.Column('date'), 'xdate'),
qp.Target(qp.Column('account'), None),
qp.Target(qp.Column('position'), 'xposition')
]), "SELECT date as xdate, account, position as xposition;")
def test_expr_constant_date(self):
self.assertParse(
qSelect([qp.Target(qp.Constant(datetime.date(1972, 5, 28)),
None)]), "SELECT 1972-05-28;")
self.assertParse(
qSelect([qp.Target(qp.Constant(datetime.date(1972, 5, 28)),
None)]), "SELECT #'May 28, 1972';")
def test_expr_numerical(self):
expected = qSelect(
[qp.Target(qp.Add(qp.Constant(2), qp.Constant(3)), None)])
self.assertParse(expected, "SELECT 2+(3);")
expected = qSelect(
[qp.Target(qp.Sub(qp.Constant(2), qp.Constant(3)), None)])
self.assertParse(expected, "SELECT 2-(3);")
def test_expr_constant_decimal(self):
self.assertParse(qSelect([qp.Target(qp.Constant(D('17.345')), None)]),
"SELECT 17.345;")
self.assertParse(qSelect([qp.Target(qp.Constant(D('.345')), None)]),
"SELECT .345;")
self.assertParse(qSelect([qp.Target(qp.Constant(D('17.')), None)]),
"SELECT 17.;")
def test_balance(self):
balance = self.parse("BALANCES;")
select = qc.transform_balances(balance)
self.assertEqual(
qp.Select([
qp.Target(qp.Column('account'), None),
qp.Target(qp.Function('sum', [qp.Column('position')]), None),
], None, None, self.group_by, self.order_by, None, None, None,
None), select)
def setUp(self):
super().setUp()
self.targets = [
qp.Target(qp.Column('a'), None),
qp.Target(qp.Column('b'), None)
]
self.expr = qp.Equal(
qp.Column('d'),
qp.And(qp.Function('max', [qp.Column('e')]), qp.Constant(17)))
def test_from_and_where(self):
expr = qp.Equal(
qp.Column('d'),
qp.And(qp.Function('max', [qp.Column('e')]), qp.Constant(17)))
self.assertParse(
"SELECT a, b FROM d = (max(e) and 17) WHERE d = (max(e) and 17);",
Select([
qp.Target(qp.Column('a'), None),
qp.Target(qp.Column('b'), None)
], qp.From(expr, None, None, None), expr))
def test_explain_select(self):
self.assertParse(
qp.Explain(
qSelect([
qp.Target(qp.Column('date'), None),
qp.Target(qp.Column('account'), None)
],
where_clause=qp.Match(qp.Column('account'),
qp.Constant('etrade')))),
"EXPLAIN SELECT date, account WHERE account ~ 'etrade';")
def test_where(self):
expr = qp.Equal(
qp.Column('d'),
qp.And(qp.Function('max', [qp.Column('e')]), qp.Constant(17)))
self.assertParse(
"SELECT a, b WHERE d = (max(e) and 17);",
Select([
qp.Target(qp.Column('a'), None),
qp.Target(qp.Column('b'), None)
], None, expr))
with self.assertRaises(qp.ParseError):
self.parse("SELECT a, b WHERE;")
def test_balance_with_units_and_from(self):
balance = self.parse("BALANCES AT cost FROM year = 2014;")
select = qc.transform_balances(balance)
self.assertEqual(
qp.Select([
qp.Target(qp.Column('account'), None),
qp.Target(
qp.Function(
'sum', [qp.Function('cost', [qp.Column('position')])]),
None),
],
qp.From(qp.Equal(qp.Column('year'), qp.Constant(2014)),
None, None, None), None, self.group_by,
self.order_by, None, None, None, None), select)
def test_expr_match(self):
self.assertParse(
qSelect([
qp.Target(
qp.Match(qp.Column('a'),
qp.Constant('Assets:.*:Checking')), None)
]), "SELECT a ~ 'Assets:.*:Checking';")
def test_select(self):
with self.assertRaises(qp.ParseError):
self.parse("SELECT")
with self.assertRaises(qp.ParseError):
self.parse("SELECT ; ")
self.assertParse("SELECT *;", Select(qp.Wildcard()))
self.assertParse("SELECT date;",
Select([qp.Target(qp.Column('date'), None)]))
self.assertParse(
"SELECT date, account",
Select([
qp.Target(qp.Column('date'), None),
qp.Target(qp.Column('account'), None)
]))
self.assertParse("SELECT date as xdate;",
Select([qp.Target(qp.Column('date'), 'xdate')]))
self.assertParse(
"SELECT date as x, account, position as y;",
Select([
qp.Target(qp.Column('date'), 'x'),
qp.Target(qp.Column('account'), None),
qp.Target(qp.Column('position'), 'y')
]))
def test_journal_with_account_func_and_from(self):
journal = self.parse("JOURNAL 'liabilities' AT cost FROM year = 2014;")
select = qc.transform_journal(journal)
self.assertEqual(
select,
qp.Select([
qp.Target(qp.Column('date'), None),
qp.Target(qp.Column('flag'), None),
qp.Target(
qp.Function('maxwidth',
[qp.Column('payee'),
qp.Constant(48)]), None),
qp.Target(
qp.Function('maxwidth',
[qp.Column('narration'),
qp.Constant(80)]), None),
qp.Target(qp.Column('account'), None),
qp.Target(qp.Function('cost', [qp.Column('position')]), None),
qp.Target(qp.Function('cost', [qp.Column('balance')]), None),
],
qp.From(qp.Equal(qp.Column('year'), qp.Constant(2014)),
None, None, None),
qp.Match(qp.Column('account'),
qp.Constant('liabilities')), None, None, None,
None, None))
def test_from_select(self):
self.assertParse(
"""
SELECT a, b FROM (
SELECT * FROM date = 2014-05-02
) WHERE c = 5 LIMIT 100;""",
Select([
qp.Target(qp.Column('a'), None),
qp.Target(qp.Column('b'), None)
],
Select(
qp.Wildcard(),
qp.From(
qp.Equal(qp.Column('date'),
qp.Constant(datetime.date(2014, 5, 2))),
None, None, None)),
qp.Equal(qp.Column('c'), qp.Constant(5)),
limit=100))
def test_expr_function__five_args(self):
self.assertParse(
qSelect([
qp.Target(
qp.Function('min', [
qp.Column('a'),
qp.Column('b'),
qp.Column('c'),
qp.Column('d'),
qp.Column('e')
]), None)
]), "SELECT min(a, b, c, d, e);")
def test_expr_paren_multi2(self):
self.assertParse(
qSelect([
qp.Target(
qp.Not(
qp.Equal(
qp.Column('a'),
qp.Not(
qp.Equal(
qp.Column('b'),
qp.And(qp.Constant(42),
qp.Constant(17)))))), None)
]), "SELECT a != (b != (42 AND 17));")
def test_comments(self):
self.assertParse(
"""SELECT first, /* comment */ second""",
Select([
qp.Target(qp.Column('first'), None),
qp.Target(qp.Column('second'), None)
]))
self.assertParse(
"""SELECT first, /*
comment
*/ second;""",
Select([
qp.Target(qp.Column('first'), None),
qp.Target(qp.Column('second'), None),
]))
self.assertParse(
"""SELECT first, /**/ second;""",
Select([
qp.Target(qp.Column('first'), None),
qp.Target(qp.Column('second'), None),
]))
self.assertParse(
"""SELECT first, /* /* */ second;""",
Select([
qp.Target(qp.Column('first'), None),
qp.Target(qp.Column('second'), None),
]))
self.assertParse(
"""SELECT first, /* ; */ second;""",
Select([
qp.Target(qp.Column('first'), None),
qp.Target(qp.Column('second'), None),
]))
def compile_targets(targets, environ):
"""Compile the targets and check for their validity. Process wildcard.
Args:
targets: A list of target expressions from the parser.
environ: A compilation context for the targets.
Returns:
A list of compiled target expressions with resolved names.
"""
# Bind the targets expressions to the execution context.
if isinstance(targets, query_parser.Wildcard):
# Insert the full list of available columns.
targets = [query_parser.Target(query_parser.Column(name), None)
for name in environ.wildcard_columns]
# Compile targets.
c_targets = []
target_names = set()
for target in targets:
c_expr = compile_expression(target.expression, environ)
target_name = find_unique_name(
target.name or query_parser.get_expression_name(target.expression),
target_names)
target_names.add(target_name)
c_targets.append(EvalTarget(c_expr, target_name, is_aggregate(c_expr)))
# Figure out if this query is an aggregate query and check validity of each
# target's aggregation type.
for index, c_target in enumerate(c_targets):
columns, aggregates = get_columns_and_aggregates(c_target.c_expr)
# Check for mixed aggregates and non-aggregates.
if columns and aggregates:
raise CompilationError(
"Mixed aggregates and non-aggregates are not allowed")
if aggregates:
# Check for aggregates of aggregates.
for aggregate in aggregates:
for child in aggregate.childnodes():
if is_aggregate(child):
raise CompilationError(
"Aggregates of aggregates are not allowed")
return c_targets
def test_journal(self):
journal = self.parse("JOURNAL;")
select = qc.transform_journal(journal)
self.assertEqual(
qp.Select([
qp.Target(qp.Column('date'), None),
qp.Target(qp.Column('flag'), None),
qp.Target(
qp.Function('maxwidth',
[qp.Column('payee'),
qp.Constant(48)]), None),
qp.Target(
qp.Function('maxwidth',
[qp.Column('narration'),
qp.Constant(80)]), None),
qp.Target(qp.Column('account'), None),
qp.Target(qp.Column('position'), None),
qp.Target(qp.Column('balance'), None),
], None, None, None, None, None, None, None, None), select)
def test_expr_div(self):
self.assertParse(
qSelect([qp.Target(qp.Div(qp.Column('a'), qp.Column('b')), None)]),
r"SELECT a / b;")
def test_distinct(self):
self.assertParse(
"SELECT DISTINCT x;",
Select([qp.Target(qp.Column('x'), None)], distinct=True))
def test_expr_not(self):
self.assertParse(qSelect([qp.Target(qp.Not(qp.Column('a')), None)]),
"SELECT NOT a;")
def test_expr_or(self):
self.assertParse(
qSelect([qp.Target(qp.Or(qp.Column('a'), qp.Column('b')), None)]),
"SELECT a OR b;")
def test_expr_function__two_args(self):
self.assertParse(
qSelect([
qp.Target(qp.Function(
'min', [qp.Column('a'), qp.Column('b')]), None)
]), "SELECT min(a, b);")
def test_expr_function__zero_args(self):
self.assertParse(qSelect([qp.Target(qp.Function('random', []), None)]),
"SELECT random();")
def test_target_one_as(self):
self.assertParse(qSelect([qp.Target(qp.Column('date'), 'xdate')]),
"SELECT date as xdate;")
def test_target_one(self):
self.assertParse(qSelect([qp.Target(qp.Column('date'), None)]),
"SELECT date;")
def test_expr_mul(self):
self.assertParse(
qSelect([qp.Target(qp.Mul(qp.Column('a'), qp.Column('b')), None)]),
"SELECT a * b;")
def test_distinct(self):
self.assertParse(
qSelect([qp.Target(qp.Column('account'), None)], distinct=True),
"SELECT DISTINCT account;")
def test_expr_sub(self):
expected = qSelect(
[qp.Target(qp.Sub(qp.Column('a'), qp.Column('b')), None)])
self.assertParse(expected, "SELECT a - b;")
self.assertParse(expected, "SELECT a-b;")
