MOL 186, migration from file storage to SQL Databse
diff --git a/persistance/db_migrate.py b/persistance/db_migrate.py
new file mode 100644
index 0000000..7f2b130
--- /dev/null
+++ b/persistance/db_migrate.py
@@ -0,0 +1,20 @@
+import imp
+from migrate.versioning import api
+from config import SQLALCHEMY_MIGRATE_REPO, DATABASE_URI
+from web_app.app import db
+
+
+v = api.db_version(DATABASE_URI, SQLALCHEMY_MIGRATE_REPO)
+migration = SQLALCHEMY_MIGRATE_REPO + ('/versions/%03d_migration.py' % (v+1))
+tmp_module = imp.new_module('old_model')
+old_model = api.create_model(DATABASE_URI, SQLALCHEMY_MIGRATE_REPO)
+
+exec old_model in tmp_module.__dict__
+script = api.make_update_script_for_model(DATABASE_URI,
+ SQLALCHEMY_MIGRATE_REPO,
+ tmp_module.meta, db.metadata)
+open(migration, "wt").write(script)
+api.upgrade(DATABASE_URI, SQLALCHEMY_MIGRATE_REPO)
+v = api.db_version(DATABASE_URI, SQLALCHEMY_MIGRATE_REPO)
+print('New migration saved as ' + migration)
+print('Current database version: ' + str(v))
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