def FETCH(self, *args):
data = self.cursor.fetchone()
self.found = data is not None
if not self.found:
return
for i, arg in enumerate(args):
value = data[i]
if value is None:
value = NULL()
arg <<= m(value)
def NEXT(self, index):
index = extract_value(index)
if index >= len(self.inner_list):
return NULL()
return m(index + 1)
def PRIOR(self, index):
index = extract_value(index)
if index == 1:
return NULL()
return m(index - 1)
def FIRST(self):
return m(1) # FIXME