diff options
Diffstat (limited to 'django/contrib/gis/db/models/sql/query.py')
| -rw-r--r-- | django/contrib/gis/db/models/sql/query.py | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/django/contrib/gis/db/models/sql/query.py b/django/contrib/gis/db/models/sql/query.py index 6995771cd6..cf1ccf6483 100644 --- a/django/contrib/gis/db/models/sql/query.py +++ b/django/contrib/gis/db/models/sql/query.py @@ -33,6 +33,13 @@ class GeoQuery(sql.Query): self.transformed_srid = None self.extra_select_fields = {} + if SpatialBackend.oracle: + # Have to override this so that GeoQuery, instead of OracleQuery, + # is returned when unpickling. + def __reduce__(self): + callable, args, data = super(GeoQuery, self).__reduce__() + return (unpickle_geoquery, (), data) + def clone(self, *args, **kwargs): obj = super(GeoQuery, self).clone(*args, **kwargs) # Customized selection dictionary and transformed srid flag have @@ -332,3 +339,12 @@ class GeoQuery(sql.Query): # Otherwise, check by the given field name -- which may be # a lookup to a _related_ geographic field. return GeoWhereNode._check_geo_field(self.model._meta, field_name) + +if SpatialBackend.oracle: + def unpickle_geoquery(): + """ + Utility function, called by Python's unpickling machinery, that handles + unpickling of GeoQuery subclasses of OracleQuery. + """ + return GeoQuery.__new__(GeoQuery) + unpickle_geoquery.__safe_for_unpickling__ = True |