feat(db): Add migrations support to plugins

flaschengeist/plugins/balance/__init__.py

@@ -3,6 +3,7 @@
 Extends users plugin with balance functions
 """
 
+import pathlib
 from flask import Blueprint, current_app
 from werkzeug.local import LocalProxy
 from werkzeug.exceptions import NotFound
@@ -67,6 +68,8 @@ class BalancePlugin(Plugin):
         super(BalancePlugin, self).__init__(config)
         from . import routes
 
+        self.migrations_path = (pathlib.Path(__file__).parent / "migrations").resolve()
+
         @plugins_loaded
         def post_loaded(*args, **kwargs):
             if config.get("allow_service_debit", False) and "events" in current_app.config["FG_PLUGINS"]:

flaschengeist/plugins/pricelist/__init__.py

@@ -1,5 +1,6 @@
 """Pricelist plugin"""
 
+import pathlib
 from flask import Blueprint, jsonify, request, current_app
 from werkzeug.local import LocalProxy
 from werkzeug.exceptions import BadRequest, Forbidden, NotFound, Unauthorized
@@ -24,6 +25,7 @@ class PriceListPlugin(Plugin):
 
     def __init__(self, cfg):
         super().__init__(cfg)
+        self.migrations_path = (pathlib.Path(__file__).parent / "migrations").resolve()
         config = {"discount": 0}
         config.update(cfg)