migrations for the roomtypes (#513)

* migrations for the roomtypes

* rename files

* updated types

* Correct migration numbers and cleanup

migrations/000.593.sql

@@ -0,0 +1,32 @@
+-- Drop tables if they exist to allow re-running this migration
+DROP TABLE IF EXISTS room_roomtypes;
+DROP TABLE IF EXISTS roomtypes;
+
+-- Create roomtypes table with sequential ids
+CREATE TABLE roomtypes (
+    id SERIAL PRIMARY KEY,
+    name CHARACTER VARYING,
+    admin_specific BOOLEAN NOT NULL DEFAULT FALSE,
+    CONSTRAINT roomtypes_name_key UNIQUE (name)
+);
+
+-- Create room_roomtypes junction table
+CREATE TABLE room_roomtypes (
+    id SERIAL PRIMARY KEY,
+    room_id INTEGER NOT NULL,
+    roomtype_id INTEGER NOT NULL,
+
+    -- Foreign key constraints with CASCADE DELETE
+    CONSTRAINT fk_room_roomtypes_room
+        FOREIGN KEY (room_id) REFERENCES rooms(id) ON DELETE CASCADE,
+    CONSTRAINT fk_room_roomtypes_roomtype
+        FOREIGN KEY (roomtype_id) REFERENCES roomtypes(id) ON DELETE CASCADE,
+
+    -- Ensure unique combination of room and roomtype (prevent duplicates)
+    UNIQUE(room_id, roomtype_id)
+);
+
+-- Create indexes for better query performance
+CREATE INDEX idx_room_roomtypes_room_id ON room_roomtypes(room_id);
+CREATE INDEX idx_room_roomtypes_roomtype_id ON room_roomtypes(roomtype_id);
+