feat: finish back-end work (untested)

db/schema initialization.sql

@@ -1,8 +1,15 @@
+CREATE TABLE IF NOT EXISTS ordr_position (
+	id SERIAL NOT NULL PRIMARY KEY,
+	position_name TEXT NOT NULL
+);
+
+INSERT INTO ordr_position VALUES (0, 'Unassigned');
+
 CREATE TABLE IF NOT EXISTS ordr_user (
     id SERIAL NOT NULL PRIMARY KEY,
     sub_id TEXT UNIQUE NOT NULL,
     user_name TEXT NOT NULL,
-    position TEXT DEFAULT "",
+    position INTEGER NOT NULL DEFAULT 0 REFERENCES ordr_position ON DELETE SET NULL,
     active BOOLEAN NOT NULL DEFAULT TRUE,
     is_admin BOOLEAN NOT NULL DEFAULT FALSE
 );
@@ -25,7 +32,7 @@ CREATE TABLE IF NOT EXISTS item (
 );
 
 CREATE TABLE IF NOT EXISTS item_price_history (
-    item_id INTEGER NOT NULL REFERENCES item(id),
+    item_id INTEGER NOT NULL REFERENCES item(id) ON DELETE CASCADE,
     price REAL NOT NULL,
     valid_from TIMESTAMP NOT NULL DEFAULT now(),
     valid_to TIMESTAMP,
@@ -33,8 +40,8 @@ CREATE TABLE IF NOT EXISTS item_price_history (
 );
 
 CREATE TABLE IF NOT EXISTS order_item (
-    item_id INTEGER NOT NULL REFERENCES item(id),
-    order_id INTEGER NOT NULL REFERENCES order_record(id),
+    item_id INTEGER NOT NULL REFERENCES item(id) ON DELETE CASCADE,
+    order_id INTEGER NOT NULL REFERENCES order_record(id) ON DELETE CASCADE,
     quantity INTEGER NOT NULL,
     made INTEGER NOT NULL DEFAULT 0,
     created_at TIMESTAMP NOT NULL DEFAULT now(),
@@ -48,6 +55,6 @@ CREATE TABLE IF NOT EXISTS label (
 );
 
 CREATE TABLE IF NOT EXISTS order_label (
-    order_id INTEGER NOT NULL REFERENCES order_record(id),
-    label_id INTEGER NOT NULL REFERENCES label(id)
-);
+    order_id INTEGER NOT NULL REFERENCES order_record(id) ON DELETE CASCADE,
+    label_id INTEGER NOT NULL REFERENCES label(id) ON DELETE CASCADE
+);