def get(self, use_base_env=False, **kwargs):
l = self.filter(**kwargs).get_jiter()
if len(l) == 0:
return None
for (o, _) in l:
if o.jeeves_id != l[0][0].jeeves_id:
raise Exception(
"wow such error: get() found rows for more than one jeeves_id"
)
cur = None
for (o, conditions) in l:
old = cur
cur = FObject(o)
for var_name, val in conditions.iteritems():
if val:
cur = Facet(
acquire_label_by_name(self.model._meta.app_label,
var_name), cur, old)
else:
cur = Facet(
acquire_label_by_name(self.model._meta.app_label,
var_name), old, cur)
try:
return partialEval(
cur,
{} if use_base_env else JeevesLib.jeevesState.pathenv.getEnv())
except TypeError:
raise Exception(
"wow such error: could not find a row for every condition")
def jmap(iterable, mapper):
if isinstance(iterable, JList2):
return jmap_jlist2(iterable, mapper)
if isinstance(iterable, FObject) and isinstance(iterable.v, JList2):
return jmap_jlist2(iterable.v, mapper)
iterable = partialEval(fexpr_cast(iterable), jeevesState.pathenv.getEnv())
return FObject(JList(jmap2(iterable, mapper)))
def get(self, use_base_env=False, **kwargs):
"""Fetches a JList of rows that match the conditions.
"""
matches = self.filter(**kwargs).get_jiter()
if len(matches) == 0:
return None
for (row, _) in matches:
if row.jeeves_id != matches[0][0].jeeves_id:
raise Exception(
"wow such error: \
get() found rows for more than one jeeves_id"
)
viewer = JeevesLib.get_viewer()
has_viewer = not isinstance(viewer, FNull)
pathenv = JeevesLib.jeevesState.pathenv.getEnv()
solverstate = JeevesLib.get_solverstate()
cur = None
for (row, conditions) in matches:
old = cur
cur = FObject(row)
for var_name, val in conditions.iteritems():
label = acquire_label_by_name(self.model._meta.app_label, var_name, obj=row)
if has_viewer:
if solverstate.assignLabel(label, pathenv):
if not val:
cur = old
else:
if val:
cur = old
else:
if val:
cur = Facet(label, cur, old)
else:
cur = Facet(label, old, cur)
try:
return cur.partialEval({} if use_base_env else JeevesLib.jeevesState.pathenv.getEnv())
except TypeError:
raise Exception(
"wow such error: \
could not find a row for every condition"
)
def get(self, use_base_env=False, **kwargs):
"""Fetches a JList of rows that match the conditions.
"""
matches = self.filter(**kwargs).get_jiter()
if len(matches) == 0:
return None
for (row, _) in matches:
if row.jeeves_id != matches[0][0].jeeves_id:
raise Exception("wow such error: \
get() found rows for more than one jeeves_id")
viewer = JeevesLib.get_viewer()
has_viewer = not isinstance(viewer, FNull)
pathenv = JeevesLib.jeevesState.pathenv.getEnv()
solverstate = JeevesLib.get_solverstate()
cur = None
for (row, conditions) in matches:
old = cur
cur = FObject(row)
for var_name, (label, val) in conditions.iteritems():
# TODO: Figure out if we need to make obj the faceted value.
'''
if has_viewer:
if solverstate.assignLabel(label, pathenv):
if not val:
cur = old
else:
if val:
cur = old
else:
'''
if val:
cur = Facet(label, cur, old)
else:
cur = Facet(label, old, cur)
try:
return cur.partialEval({} if use_base_env \
else JeevesLib.jeevesState.pathenv.getEnv())
except TypeError:
raise Exception("wow such error: \
could not find a row for every condition")
def rec(cur_e, i):
if i == len(all_vars):
return FObject(
[i for i, e in self.l if all(cur_e[v] == e[v] for v in e)])
else:
cur_e1 = dict(cur_e)
cur_e2 = dict(cur_e)
cur_e1[all_vars[i]] = True
cur_e2[all_vars[i]] = False
return Facet(getLabel(all_vars[i]), rec(cur_e1, i + 1),
rec(cur_e2, i + 1))
def jmap_jlist2(jlist2, mapper):
ans = JList2([])
env = jeevesState.pathenv.getEnv()
for i, e in jlist2.l:
popcount = 0
for vname, vval in e.iteritems():
if vname not in env:
v = getLabel(vname)
jeevesState.pathenv.push(v, vval)
popcount += 1
elif env[vname] != vval:
break
ans.l.append((mapper(i), e))
for _ in xrange(popcount):
jeevesState.pathenv.pop()
return FObject(ans)
def jmap2(iterator, mapper):
if isinstance(iterator, Facet):
if jeevesState.pathenv.hasPosVar(iterator.cond):
return jmap2(iterator.thn, mapper)
if jeevesState.pathenv.hasNegVar(iterator.cond):
return jmap2(iterator.els, mapper)
with PositiveVariable(iterator.cond):
thn = jmap2(iterator.thn, mapper)
with NegativeVariable(iterator.cond):
els = jmap2(iterator.els, mapper)
return Facet(iterator.cond, thn, els)
elif isinstance(iterator, FObject):
return jmap2(iterator.v, mapper)
elif isinstance(iterator, JList):
return jmap2(iterator.l, mapper)
elif isinstance(iterator, JList2):
return jmap2(iterator.convert_to_jlist1().l, mapper)
elif isinstance(iterator, list) or isinstance(iterator, tuple):
return FObject([mapper(item) for item in iterator])
else:
return jmap2(iterator.__iter__(), mapper)
def __init__(self, l):
self.l = l if isinstance(l, FExpr) else FObject(l)
self.validate()
