Обновление схемы данных без потерь #17

src/infra/infra_mnesia.erl

@@ -19,7 +19,7 @@
   review, report, banned_word,
   ticket, subscription,
   admin_audit, notification,
-  stats
+  stats, schema_migration
 ]).
 
 -define(DISC_TABLES, ?TABLES -- [session, admin_session]).
@@ -61,6 +61,8 @@ handle_call(init_tables, _From, State) ->
   ok = create_indices(),
   ok = stats_collector:subscribe(),
   ok = start_cleanup_timer(),
+  ok = migration_engine:init_migrations_table(),
+  _ = migration_engine:apply_pending(),
   {reply, ok, State};
 
 handle_call({add_nodes, Nodes}, _From, State) ->
@@ -215,6 +217,7 @@ table_opts(subscription) -> [{disc_copies, [node()]}, {attributes, record_info(f
 table_opts(admin_audit) -> [{disc_copies, [node()]}, {attributes, record_info(fields, admin_audit)}];
 table_opts(notification) -> [{disc_copies, [node()]}, {attributes, record_info(fields, notification)}];
 table_opts(stats) -> [{disc_copies, [node()]}, {attributes, record_info(fields, stats)}];
+table_opts(schema_migration) -> [{disc_copies, [node()]}, {attributes, record_info(fields, schema_migration)}];
 table_opts(session) -> [{ram_copies, [node()]}, {attributes, record_info(fields, session)}];
 table_opts(admin_session) -> [{ram_copies, [node()]}, {attributes, record_info(fields, admin_session)}].