add basic structure for config support

bauble/model/config.py

@@ -0,0 +1,52 @@
+#
+# Config table definition
+#
+from sqlalchemy import *
+from sqlalchemy.orm import *
+from sqlalchemy.orm.session import object_session
+from sqlalchemy.exc import DBAPIError
+from sqlalchemy.ext.associationproxy import association_proxy
+
+import bauble
+import bauble.db as db
+#import bauble.utils as utils
+#from bauble.utils.log import debug
+#import bauble.utils.web as web
+import bauble.types as types
+import bauble.search as search
+
+
+def get(key, session):
+    return Config.get(key, session)
+
+
+def set(key, value, session):
+    return Config(key, value, session)
+
+
+class Config(db.Base):
+    __tablename__ = "config"
+    __mapper_args__ = {'order_by': ['key']}
+
+    key = Column(String, nullable=False, index=True, unique=True)
+    value = Column(String)
+    #family_id = Column(Integer, ForeignKey('family.id'), nullable=False)
+    #family = relation('Family', backref=backref('genera', cascade='all,delete-orphan'))
+
+    # TODO: see about using relationships across schema boundaries:
+    # http://docs.sqlalchemy.org/en/rel_0_8/dialects/postgresql.html#remote-cross-schema-table-introspection
+    user_id = Column(Integer, ForeignKey('user.id'))
+
+    @staticmethod
+    def get(key, session):
+        config = session.query(Config).filter_by(key=key).first()
+        return config.value if config else None
+
+    @staticmethod
+    def set(key, value, session):
+        config = session.query(Config).filter_by(key=key).first()
+        if config:
+            config.value = value
+        else:
+            config = Config(key=key, value=value)
+            session.add(session)

bauble/server/config.py

@@ -0,0 +1,10 @@
+#
+# TODO: the config resource will act different from other resources since all configurations have
+# unique names we'll get/set/del based on their names
+#
+from bauble.model.config import Config
+
+class ConfigResource:
+    """
+    """
+    pass