refactor: improve database migrations

lnbits/extensions/amilk/migrations.py

@@ -0,0 +1,21 @@
+from lnbits.db import open_ext_db
+
+
+def m001_initial(db):
+    """
+    Initial amilks table.
+    """
+    db.execute("""
+        CREATE TABLE IF NOT EXISTS amilks (
+            id TEXT PRIMARY KEY,
+            wallet TEXT NOT NULL,
+            lnurl TEXT NOT NULL,
+            atime TEXT NOT NULL,
+            amount INTEGER NOT NULL
+        );
+    """)
+
+
+def migrate():
+    with open_ext_db("amilk") as db:
+        m001_initial(db)

lnbits/extensions/amilk/schema.sql

@@ -1,7 +0,0 @@
-CREATE TABLE IF NOT EXISTS amilks (
-  id TEXT PRIMARY KEY,
-  wallet TEXT NOT NULL,
-  lnurl TEXT NOT NULL,
-  atime TEXT NOT NULL,
-  amount INTEGER NOT NULL
-);