diff options
Diffstat (limited to 'lib/sqlalchemy/orm/path_registry.py')
| -rw-r--r-- | lib/sqlalchemy/orm/path_registry.py | 38 |
1 files changed, 32 insertions, 6 deletions
diff --git a/lib/sqlalchemy/orm/path_registry.py b/lib/sqlalchemy/orm/path_registry.py index 4803dbecb..2f680a3a1 100644 --- a/lib/sqlalchemy/orm/path_registry.py +++ b/lib/sqlalchemy/orm/path_registry.py @@ -100,8 +100,8 @@ class PathRegistry(object): def __reduce__(self): return _unreduce_path, (self.serialize(),) - def serialize(self): - path = self.path + @classmethod + def _serialize_path(cls, path): return list( zip( [m.class_ for m in [path[i] for i in range(0, len(path), 2)]], @@ -110,10 +110,7 @@ class PathRegistry(object): ) @classmethod - def deserialize(cls, path): - if path is None: - return None - + def _deserialize_path(cls, path): p = tuple( chain( *[ @@ -129,6 +126,35 @@ class PathRegistry(object): ) if p and p[-1] is None: p = p[0:-1] + return p + + @classmethod + def serialize_context_dict(cls, dict_, tokens): + return [ + ((key, cls._serialize_path(path)), value) + for (key, path), value in [ + (k, v) + for k, v in dict_.items() + if isinstance(k, tuple) and k[0] in tokens + ] + ] + + @classmethod + def deserialize_context_dict(cls, serialized): + return util.OrderedDict( + ((key, tuple(cls._deserialize_path(path))), value) + for (key, path), value in serialized + ) + + def serialize(self): + path = self.path + return self._serialize_path(path) + + @classmethod + def deserialize(cls, path): + if path is None: + return None + p = cls._deserialize_path(path) return cls.coerce(p) @classmethod |