Move the rest of pokedex.util.get to pokedex.db.util

[zzz-pokedex.git] / pokedex / db / multilang.py

diff --git a/pokedex/db/multilang.py b/pokedex/db/multilang.py
index d58f6df..f66ee20 100644 (file)
--- a/pokedex/db/multilang.py
+++ b/pokedex/db/multilang.py
@@ -48,7 +48,7 @@ def create_translation_table(_table_name, foreign_class, relation_name,
       are rows in the created tables.
     - `(relation_name)_local`, a relation to the row in the new table that
       matches the current default language.
-    - `(relation_name)_class`, the class created by this function.
+    - `(relation_name)_table`, the class created by this function.
 
     Note that these are distinct relations.  Even though the former necessarily
     includes the latter, SQLAlchemy doesn't treat them as linked; loading one
@@ -99,8 +99,7 @@ def create_translation_table(_table_name, foreign_class, relation_name,
         'foreign_id': synonym(foreign_key_name),
         'local_language': relationship(language_class,
             primaryjoin=table.c.local_language_id == language_class.id,
-            innerjoin=True,
-            lazy='joined'),
+            innerjoin=True),
     })
 
     # Add full-table relations to the original class
@@ -157,46 +156,36 @@ def create_translation_table(_table_name, foreign_class, relation_name,
 class MultilangSession(Session):
     """A tiny Session subclass that adds support for a default language.
 
-    Caller will need to assign something to `default_language` before this will
-    actually work.
+    Needs to be used with `MultilangScopedSession`, below.
     """
-    _default_language_id = 0  # Better fill this in, caller
+    default_language_id = None
 
     def __init__(self, *args, **kwargs):
-        self.language_class = kwargs.pop('language_class')
-        super(MultilangSession, self).__init__(*args, **kwargs)
+        if 'default_language_id' in kwargs:
+            self.default_language_id = kwargs.pop('default_language_id')
 
-    @property
-    def default_language(self):
-        return self.query(self.language_class) \
-            .filter_by(id=self._default_language_id) \
-            .one()
-
-    @default_language.setter
-    def default_language(self, new):
-        self._default_language_id = new.id
-
-    @default_language.deleter
-    def default_language(self):
-        try:
-            del self._default_language_id
-        except AttributeError:
-            pass
+        super(MultilangSession, self).__init__(*args, **kwargs)
 
     def execute(self, clause, params=None, *args, **kwargs):
         if not params:
             params = {}
-        params.setdefault('_default_language_id', self._default_language_id)
+        params.setdefault('_default_language_id', self.default_language_id)
+
         return super(MultilangSession, self).execute(
             clause, params, *args, **kwargs)
 
 class MultilangScopedSession(ScopedSession):
     """Dispatches language selection to the attached Session."""
 
-    @property
-    def default_language(self):
-        return self.registry().default_language
+    def __init__(self, *args, **kwargs):
+        super(MultilangScopedSession, self).__init__(*args, **kwargs)
 
-    @default_language.setter
-    def default_language(self, new):
-        self.registry().default_language = new
+    @property
+    def default_language_id(self):
+        """Passes the new default language id through to the current session.
+        """
+        return self.registry().default_language_id
+
+    @default_language_id.setter
+    def default_language_id(self, new):
+        self.registry().default_language_id = new