Refine status schema

script/sql/create/10.status.sql

@@ -1,29 +1,11 @@
 -- [STATUS]
 
-create type status_pipe_pump_status as enum ('open', 'closed');
+create type link_status as enum ('OPEN', 'CLOSED', 'ACTIVE');
 
-create table status_pipe
-(
-  id varchar(32) primary key references pipes(id)
-, status status_pipe_pump_status not null
-);
-
-create table status_pump
-(
-  id varchar(32) primary key references pumps(id)
-, status status_pipe_pump_status not null
-);
-
-create type status_valve_status as enum ('open', 'closed', 'active');
-
-create table status_valve
-(
-  id varchar(32) primary key references valves(id)
-, status status_valve_status not null
-);
-
-create table status_link
+create table status
 (
   id varchar(32) primary key references _link(id)
-, setting numeric not null
+, l_status link_status
+, setting numeric
+, check (l_status is not null or setting is not null)
 );

script/sql/drop/10.status.sql

@@ -1,13 +1,5 @@
 -- [STATUS]
 
-drop table if exists status_link;
+drop table if exists status;
 
-drop table if exists status_valve;
-
-drop type if exists status_valve_status;
-
-drop table if exists status_pump;
-
-drop table if exists status_pipe;
-
-drop type if exists status_pipe_pump_status;
+drop type if exists link_status;