From bf99dac25cb441b06162dcd20bb175f86615d2a5 Mon Sep 17 00:00:00 2001
From: Ethan Girouard <mr.egirouard@gmail.com>
Date: Thu, 8 Feb 2024 18:38:18 -0500
Subject: [PATCH] Create albums table

---
 .../down.sql                                  |  2 ++
 .../up.sql                                    | 13 ++++++++++++
 src/schema.rs                                 | 20 +++++++++++++++++++
 3 files changed, 35 insertions(+)
 create mode 100644 migrations/2024-02-06-150214_create_albums_table/down.sql
 create mode 100644 migrations/2024-02-06-150214_create_albums_table/up.sql

diff --git a/migrations/2024-02-06-150214_create_albums_table/down.sql b/migrations/2024-02-06-150214_create_albums_table/down.sql
new file mode 100644
index 0000000..31baf23
--- /dev/null
+++ b/migrations/2024-02-06-150214_create_albums_table/down.sql
@@ -0,0 +1,2 @@
+DROP TABLE album_artists;
+DROP TABLE albums;
diff --git a/migrations/2024-02-06-150214_create_albums_table/up.sql b/migrations/2024-02-06-150214_create_albums_table/up.sql
new file mode 100644
index 0000000..154bab2
--- /dev/null
+++ b/migrations/2024-02-06-150214_create_albums_table/up.sql
@@ -0,0 +1,13 @@
+CREATE TABLE albums (
+    id SERIAL PRIMARY KEY UNIQUE NOT NULL,
+    title VARCHAR NOT NULL,
+    release_date DATE
+);
+
+-- A table to store artists for each album
+-- Needed because an album can have multiple artists, but in Postgres we can't store an array of foreign keys
+CREATE TABLE album_artists (
+    album_id INTEGER REFERENCES albums(id) ON DELETE CASCADE NOT NULL,
+    artist_id INTEGER REFERENCES artists(id) ON DELETE CASCADE NULL,
+    PRIMARY KEY (album_id, artist_id)
+);
diff --git a/src/schema.rs b/src/schema.rs
index 58b691a..1029c02 100644
--- a/src/schema.rs
+++ b/src/schema.rs
@@ -1,5 +1,20 @@
 // @generated automatically by Diesel CLI.
 
+diesel::table! {
+    album_artists (album_id, artist_id) {
+        album_id -> Int4,
+        artist_id -> Int4,
+    }
+}
+
+diesel::table! {
+    albums (id) {
+        id -> Int4,
+        title -> Varchar,
+        release_date -> Nullable<Date>,
+    }
+}
+
 diesel::table! {
     artists (id) {
         id -> Int4,
@@ -17,7 +32,12 @@ diesel::table! {
     }
 }
 
+diesel::joinable!(album_artists -> albums (album_id));
+diesel::joinable!(album_artists -> artists (artist_id));
+
 diesel::allow_tables_to_appear_in_same_query!(
+    album_artists,
+    albums,
     artists,
     users,
 );