RunasSudo/Eos
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Prevent saving different version objects

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This commit is contained in:
RunasSudo 2019-01-14 17:55:14 +11:00
parent cb3623fda7
commit 2011749836
Signed by: RunasSudo
GPG Key ID: 7234E476BF21C61A
1 changed files with 15 additions and 3 deletions
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18
eos/core/objects/__init__.py
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@ -419,6 +419,8 @@ class DocumentObject(EosObject, metaclass=DocumentObjectType):
def __init__(self, *args, **kwargs):
super().__init__()
self._json = None
self._field_values = {}
# Different to Python
@ -456,6 +458,10 @@ class DocumentObject(EosObject, metaclass=DocumentObjectType):
val.object_init(self, default)
def serialise(self, options=SerialiseOptions.DEFAULT):
if self._ver != self._fields['_ver'].default:
# Different version, use stored JSON
return self._json
return {val.real_name: val.serialise(getattr(self, val.real_name), options) for attr, val in self._fields.items() if ((val.is_hashed or not options.for_hash) and (not options.should_protect or not val.is_protected))}
@classmethod
@ -467,7 +473,11 @@ class DocumentObject(EosObject, metaclass=DocumentObjectType):
for attr, val in cls._fields.items():
if attr in value:
attrs[val.internal_name] = val.deserialise(value[val.real_name])
return cls(**attrs)
inst = cls(**attrs)
inst._json = value
return inst
class TopLevelObjectType(DocumentObjectType):
def __new__(meta, name, bases, attrs):
@ -489,8 +499,10 @@ class TopLevelObjectType(DocumentObjectType):
class TopLevelObject(DocumentObject, metaclass=TopLevelObjectType):
def save(self):
#res = db[self._name].replace_one({'_id': self.serialise()['_id']}, self.serialise(), upsert=True)
#res = dbinfo.db[self._db_name].replace_one({'_id': self._fields['_id'].serialise(self._id)}, EosObject.serialise_and_wrap(self), upsert=True)
if self._ver != self._fields['_ver'].default:
# Different version, unable to save
raise Exception('Attempted to save older vesion object')
dbinfo.provider.update_by_id(self._db_name, self._fields['_id'].serialise(self._id), EosObject.serialise_and_wrap(self))
def delete(self):