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Merge pull request #1913 from bagerard/1453_mapfield_list_reference_field

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Fix complex combinations of DictField(ListField(ReferenceField))
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erdenezul
2018-12-13 09:16:19 +08:00
committed by GitHub
parent cab21b1b21 0fa6610fdb
commit d3a592e5bf
3 changed files with 75 additions and 21 deletions
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50
mongoengine/dereference.py
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@@ -52,26 +52,40 @@ class DeReference(object):
[i.__class__ == doc_type for i in items.values()]):
return items
elif not field.dbref:
# We must turn the ObjectIds into DBRefs
# Recursively dig into the sub items of a list/dict
# to turn the ObjectIds into DBRefs
def _get_items_from_list(items):
new_items = []
for v in items:
value = v
if isinstance(v, dict):
value = _get_items_from_dict(v)
elif isinstance(v, list):
value = _get_items_from_list(v)
elif not isinstance(v, (DBRef, Document)):
value = field.to_python(v)
new_items.append(value)
return new_items
def _get_items_from_dict(items):
new_items = {}
for k, v in items.iteritems():
value = v
if isinstance(v, list):
value = _get_items_from_list(v)
elif isinstance(v, dict):
value = _get_items_from_dict(v)
elif not isinstance(v, (DBRef, Document)):
value = field.to_python(v)
new_items[k] = value
return new_items
if not hasattr(items, 'items'):
def _get_items(items):
new_items = []
for v in items:
if isinstance(v, list):
new_items.append(_get_items(v))
elif not isinstance(v, (DBRef, Document)):
new_items.append(field.to_python(v))
else:
new_items.append(v)
return new_items
items = _get_items(items)
items = _get_items_from_list(items)
else:
items = {
k: (v if isinstance(v, (DBRef, Document))
else field.to_python(v))
for k, v in items.iteritems()
}
items = _get_items_from_dict(items)
self.reference_map = self._find_references(items)
self.object_map = self._fetch_objects(doc_type=doc_type)