sqlalchemy ORM models for quest databases and json parsing scripts

also minor bugfixes
next is testing and implementation

db/base.py

@@ -0,0 +1,28 @@
+import os
+
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+from sqlalchemy import text
+from sqlalchemy.ext.declarative import declarative_base
+
+Base = declarative_base()
+
+engine = create_engine('sqlite:///:memory:', echo=False)
+session = sessionmaker(bind=engine, autoflush=False, autocommit=False)()
+session.flush = lambda:None
+
+DATABASES = {
+	"QuestMst.db": "Quest",
+	"QuestSceneMst.db": "QuestScene",
+	"QuestPartMst.db": "QuestPart",
+	"ResourceEntry.db": "ResourceEntry"
+}
+
+def init(path):
+	for d in DATABASES:
+		if not os.path.isfile(os.path.join(path, d)):
+			raise FileNotFoundError("Database {} not found".format(d))
+
+	for d in DATABASES:
+		t = text("attach database :path as :schema")
+		engine.execute(t, path=os.path.join(path, d), schema=DATABASES[d])