def filter_entries(c_from, entries, options_map, context):
"""Filter the entries by the given compiled FROM clause.
Args:
c_from: A compiled From clause instance.
entries: A list of directives.
options_map: A parser's option_map.
context: A prototype of RowContext to use for evaluation.
Returns:
A list of filtered entries.
"""
assert c_from is None or isinstance(c_from, query_compile.EvalFrom)
assert isinstance(entries, list)
context = copy.copy(context)
if c_from is None:
return entries
# Process the OPEN clause.
if c_from.open is not None:
assert isinstance(c_from.open, datetime.date)
open_date = c_from.open
entries, index = summarize.open_opt(entries, open_date, options_map)
# Process the CLOSE clause.
if c_from.close is not None:
if isinstance(c_from.close, datetime.date):
close_date = c_from.close
entries, index = summarize.close_opt(entries, close_date,
options_map)
elif c_from.close is True:
entries, index = summarize.close_opt(entries, None, options_map)
# Process the CLEAR clause.
if c_from.clear is not None:
entries, index = summarize.clear_opt(entries, None, options_map)
# Filter the entries with the FROM clause's expression.
c_expr = c_from.c_expr
if c_expr is not None:
# A simple function receives a context; how come close_date() is
# accepted in the context of a FROM clause? It shouldn't be.
new_entries = []
for entry in entries:
context.entry = entry
if c_expr(context):
new_entries.append(entry)
entries = new_entries
return entries
def filter_entries(c_from, entries, options_map):
"""Filter the entries by the given compiled FROM clause.
Args:
c_from: A compiled From clause instance.
entries: A list of directives.
options_map: A parser's option_map.
Returns:
A list of filtered entries.
"""
assert c_from is None or isinstance(c_from, query_compile.EvalFrom)
assert isinstance(entries, list)
if c_from is None:
return entries
# Process the OPEN clause.
if c_from.open is not None:
assert isinstance(c_from.open, datetime.date)
open_date = c_from.open
entries, index = summarize.open_opt(entries, open_date, options_map)
# Process the CLOSE clause.
if c_from.close is not None:
if isinstance(c_from.close, datetime.date):
close_date = c_from.close
entries, index = summarize.close_opt(entries, close_date, options_map)
elif c_from.close is True:
entries, index = summarize.close_opt(entries, None, options_map)
# Process the CLEAR clause.
if c_from.clear is not None:
entries, index = summarize.clear_opt(entries, None, options_map)
# Filter the entries with the FROM clause's expression.
c_expr = c_from.c_expr
if c_expr is not None:
entries = [entry
for entry in entries
if c_expr(entry)]
return entries
def do_open(self, entries, date, *args):
return summarize.open_opt(entries, date, self.options_map)