diff options
Diffstat (limited to 'lib/sqlalchemy/sql/schema.py')
| -rw-r--r-- | lib/sqlalchemy/sql/schema.py | 57 |
1 files changed, 1 insertions, 56 deletions
diff --git a/lib/sqlalchemy/sql/schema.py b/lib/sqlalchemy/sql/schema.py index 69f60ba24..02c14d751 100644 --- a/lib/sqlalchemy/sql/schema.py +++ b/lib/sqlalchemy/sql/schema.py @@ -31,7 +31,6 @@ as components in SQL expressions. from __future__ import absolute_import import collections -import operator import sqlalchemy from . import coercions @@ -143,8 +142,7 @@ class SchemaItem(SchemaEventTarget, visitors.Visitable): schema_item.dispatch._update(self.dispatch) return schema_item - def _translate_schema(self, effective_schema, map_): - return map_.get(effective_schema, effective_schema) + _use_schema_map = True class Table(DialectKWArgs, SchemaItem, TableClause): @@ -4270,59 +4268,6 @@ class ThreadLocalMetaData(MetaData): e.dispose() -class _SchemaTranslateMap(object): - """Provide translation of schema names based on a mapping. - - Also provides helpers for producing cache keys and optimized - access when no mapping is present. - - Used by the :paramref:`.Connection.execution_options.schema_translate_map` - feature. - - .. versionadded:: 1.1 - - - """ - - __slots__ = "map_", "__call__", "hash_key", "is_default" - - _default_schema_getter = operator.attrgetter("schema") - - def __init__(self, map_): - self.map_ = map_ - if map_ is not None: - - def schema_for_object(obj): - effective_schema = self._default_schema_getter(obj) - effective_schema = obj._translate_schema( - effective_schema, map_ - ) - return effective_schema - - self.__call__ = schema_for_object - self.hash_key = ";".join( - "%s=%s" % (k, map_[k]) for k in sorted(map_, key=str) - ) - self.is_default = False - else: - self.hash_key = 0 - self.__call__ = self._default_schema_getter - self.is_default = True - - @classmethod - def _schema_getter(cls, map_): - if map_ is None: - return _default_schema_map - elif isinstance(map_, _SchemaTranslateMap): - return map_ - else: - return _SchemaTranslateMap(map_) - - -_default_schema_map = _SchemaTranslateMap(None) -_schema_getter = _SchemaTranslateMap._schema_getter - - class Computed(FetchedValue, SchemaItem): """Defines a generated column, i.e. "GENERATED ALWAYS AS" syntax. |