Move crates to subdirectory

crates/database/migrations/2020-09-27-201047_initial_schema/up.sql

@@ -0,0 +1,65 @@
+CREATE TABLE "persons" (
+    "id" TEXT NOT NULL PRIMARY KEY,
+    "first_name" TEXT NOT NULL,
+    "last_name" TEXT NOT NULL
+);
+
+CREATE TABLE "instruments" (
+    "id" TEXT NOT NULL PRIMARY KEY,
+    "name" TEXT NOT NULL
+);
+
+CREATE TABLE "works" (
+    "id" TEXT NOT NULL PRIMARY KEY,
+    "composer" TEXT NOT NULL REFERENCES "persons"("id"),
+    "title" TEXT NOT NULL
+);
+
+CREATE TABLE "instrumentations" (
+    "id" BIGINT NOT NULL PRIMARY KEY,
+    "work" TEXT NOT NULL REFERENCES "works"("id") ON DELETE CASCADE,
+    "instrument" TEXT NOT NULL REFERENCES "instruments"("id") ON DELETE CASCADE
+);
+
+CREATE TABLE "work_parts" (
+    "id" BIGINT NOT NULL PRIMARY KEY,
+    "work" TEXT NOT NULL REFERENCES "works"("id") ON DELETE CASCADE,
+    "part_index" BIGINT NOT NULL,
+    "title" TEXT NOT NULL
+);
+
+CREATE TABLE "ensembles" (
+    "id" TEXT NOT NULL PRIMARY KEY,
+    "name" TEXT NOT NULL
+);
+
+CREATE TABLE "recordings" (
+    "id" TEXT NOT NULL PRIMARY KEY,
+    "work" TEXT NOT NULL REFERENCES "works"("id"),
+    "comment" TEXT NOT NULL
+);
+
+CREATE TABLE "performances" (
+    "id" BIGINT NOT NULL PRIMARY KEY,
+    "recording" TEXT NOT NULL REFERENCES "recordings"("id") ON DELETE CASCADE,
+    "person" TEXT REFERENCES "persons"("id"),
+    "ensemble" TEXT REFERENCES "ensembles"("id"),
+    "role" TEXT REFERENCES "instruments"("id")
+);
+
+CREATE TABLE "mediums" (
+    "id" TEXT NOT NULL PRIMARY KEY,
+    "name" TEXT NOT NULL,
+    "discid" TEXT
+);
+
+CREATE TABLE "tracks" (
+    "id" TEXT NOT NULL PRIMARY KEY,
+    "medium" TEXT NOT NULL REFERENCES "mediums"("id") ON DELETE CASCADE,
+    "index" INTEGER NOT NULL,
+    "recording" TEXT NOT NULL REFERENCES "recordings"("id"),
+    "work_parts" TEXT NOT NULL,
+    "source_index" INTEGER NOT NULL,
+    "path" TEXT NOT NULL
+);
+