重构现代化 FastAPI 后端项目框架

resources/sql/create/18.sources.sql

@@ -0,0 +1,14 @@
+-- [SOURCES]
+
+create type sources_type as enum ('CONCEN', 'MASS', 'FLOWPACED', 'SETPOINT');
+
+create table sources
+(
+  node varchar(32) primary key references _node(id)
+, s_type sources_type not null
+, strength float8 not null
+, pattern varchar(32) references _pattern(id)
+);
+
+-- delete when delete node
+-- unset pattern when delete pattern