Touch up db submodule

amanuensis/db/__init__.py

@@ -12,4 +12,20 @@ from .models import (
     ArticleContentRuleType,
     ArticleContentRule,
     Post,
-)
+)
+
+__all__ = [
+    'DbContext',
+    'User',
+    'Lexicon',
+    'Membership',
+    'Character',
+    'ArticleState',
+    'Article',
+    'IndexType',
+    'ArticleIndex',
+    'ArticleIndexRule',
+    'ArticleContentRuleType',
+    'ArticleContentRule',
+    'Post',
+]

amanuensis/db/database.py

@@ -33,5 +33,10 @@ class DbContext():
         # Create a thread-safe session factory
         self.session = scoped_session(sessionmaker(bind=self.engine))
 
+    def __call__(self, *args, **kwargs):
+        """Provides shortcut access to session.execute."""
+        return self.session.execute(*args, **kwargs)
+
     def create_all(self):
+        """Initializes the database schema."""
         ModelBase.metadata.create_all(self.engine)