fix: prisma migrations

back/prisma/migrations/20220924080202_/migration.sql

@@ -1,26 +0,0 @@
--- CreateEnum
-CREATE TYPE "DifficultyPoint" AS ENUM ('TwoHands', 'Rhythm', 'NoteCombo', 'Arpeggio', 'Distance', 'LeftHand', 'RightHand', 'LeadHandChange', 'ChordComplexity', 'ChordTiming', 'Length', 'PedalPoint', 'Precision');
-
--- CreateTable
-CREATE TABLE "User" (
-    "id" SERIAL NOT NULL,
-    "username" TEXT NOT NULL,
-    "password" TEXT NOT NULL,
-    "email" TEXT NOT NULL,
-
-    CONSTRAINT "User_pkey" PRIMARY KEY ("id")
-);
-
--- CreateTable
-CREATE TABLE "Lesson" (
-    "id" SERIAL NOT NULL,
-    "title" TEXT NOT NULL,
-    "description" TEXT NOT NULL,
-    "requiredLvl" INTEGER NOT NULL,
-    "difficulyPoint" "DifficultyPoint" NOT NULL,
-
-    CONSTRAINT "Lesson_pkey" PRIMARY KEY ("id")
-);
-
--- CreateIndex
-CREATE UNIQUE INDEX "User_username_key" ON "User"("username");

back/prisma/migrations/20220924081654_/migration.sql

@@ -1,28 +0,0 @@
-/*
-  Warnings:
-
-  - You are about to drop the column `difficulyPoint` on the `Lesson` table. All the data in the column will be lost.
-  - You are about to drop the column `requiredLvl` on the `Lesson` table. All the data in the column will be lost.
-  - Added the required column `mainSkill` to the `Lesson` table without a default value. This is not possible if the table is not empty.
-  - Added the required column `requiredLevel` to the `Lesson` table without a default value. This is not possible if the table is not empty.
-
-*/
--- AlterTable
-ALTER TABLE "Lesson" DROP COLUMN "difficulyPoint",
-DROP COLUMN "requiredLvl",
-ADD COLUMN     "mainSkill" "DifficultyPoint" NOT NULL,
-ADD COLUMN     "requiredLevel" INTEGER NOT NULL;
-
--- CreateTable
-CREATE TABLE "LessonHistory" (
-    "lessonID" INTEGER NOT NULL,
-    "userID" INTEGER NOT NULL,
-
-    CONSTRAINT "LessonHistory_pkey" PRIMARY KEY ("lessonID","userID")
-);
-
--- AddForeignKey
-ALTER TABLE "LessonHistory" ADD CONSTRAINT "LessonHistory_userID_fkey" FOREIGN KEY ("userID") REFERENCES "User"("id") ON DELETE RESTRICT ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE "LessonHistory" ADD CONSTRAINT "LessonHistory_lessonID_fkey" FOREIGN KEY ("lessonID") REFERENCES "Lesson"("id") ON DELETE RESTRICT ON UPDATE CASCADE;

back/prisma/migrations/20220926065731_/migration.sql

@@ -1,10 +0,0 @@
-/*
-  Warnings:
-
-  - You are about to drop the column `title` on the `Lesson` table. All the data in the column will be lost.
-  - Added the required column `name` to the `Lesson` table without a default value. This is not possible if the table is not empty.
-
-*/
--- AlterTable
-ALTER TABLE "Lesson" DROP COLUMN "title",
-ADD COLUMN     "name" TEXT NOT NULL;

back/prisma/migrations/20220926080922_/migration.sql

@@ -1,8 +0,0 @@
--- DropForeignKey
-ALTER TABLE "Song" DROP CONSTRAINT "Song_genreId_fkey";
-
--- AlterTable
-ALTER TABLE "Song" ALTER COLUMN "genreId" DROP NOT NULL;
-
--- AddForeignKey
-ALTER TABLE "Song" ADD CONSTRAINT "Song_genreId_fkey" FOREIGN KEY ("genreId") REFERENCES "Genre"("id") ON DELETE SET NULL ON UPDATE CASCADE;

back/prisma/migrations/20220926082047_/migration.sql

@@ -1,8 +0,0 @@
--- DropForeignKey
-ALTER TABLE "Song" DROP CONSTRAINT "Song_artistId_fkey";
-
--- AlterTable
-ALTER TABLE "Song" ALTER COLUMN "artistId" DROP NOT NULL;
-
--- AddForeignKey
-ALTER TABLE "Song" ADD CONSTRAINT "Song_artistId_fkey" FOREIGN KEY ("artistId") REFERENCES "Artist"("id") ON DELETE SET NULL ON UPDATE CASCADE;

back/prisma/migrations/20220926084154_/migration.sql

@@ -1,8 +0,0 @@
-/*
-  Warnings:
-
-  - You are about to drop the column `description` on the `Song` table. All the data in the column will be lost.
-
-*/
--- AlterTable
-ALTER TABLE "Song" DROP COLUMN "description";

back/prisma/migrations/20220926143147_/migration.sql

@@ -1,3 +1,6 @@
+-- CreateEnum
+CREATE TYPE "DifficultyPoint" AS ENUM ('TwoHands', 'Rhythm', 'NoteCombo', 'Arpeggio', 'Distance', 'LeftHand', 'RightHand', 'LeadHandChange', 'ChordComplexity', 'ChordTiming', 'Length', 'PedalPoint', 'Precision');
+
 -- CreateTable
 CREATE TABLE "User" (
     "id" SERIAL NOT NULL,
@@ -12,10 +15,9 @@ CREATE TABLE "User" (
 CREATE TABLE "Song" (
     "id" SERIAL NOT NULL,
     "name" TEXT NOT NULL,
-    "description" TEXT NOT NULL,
-    "artistId" INTEGER NOT NULL,
+    "artistId" INTEGER,
     "albumId" INTEGER,
-    "genreId" INTEGER NOT NULL,
+    "genreId" INTEGER,
     "difficulties" JSONB NOT NULL,
 
     CONSTRAINT "Song_pkey" PRIMARY KEY ("id")
@@ -45,6 +47,25 @@ CREATE TABLE "Album" (
     CONSTRAINT "Album_pkey" PRIMARY KEY ("id")
 );
 
+-- CreateTable
+CREATE TABLE "Lesson" (
+    "id" SERIAL NOT NULL,
+    "name" TEXT NOT NULL,
+    "description" TEXT NOT NULL,
+    "requiredLevel" INTEGER NOT NULL,
+    "mainSkill" "DifficultyPoint" NOT NULL,
+
+    CONSTRAINT "Lesson_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateTable
+CREATE TABLE "LessonHistory" (
+    "lessonID" INTEGER NOT NULL,
+    "userID" INTEGER NOT NULL,
+
+    CONSTRAINT "LessonHistory_pkey" PRIMARY KEY ("lessonID","userID")
+);
+
 -- CreateIndex
 CREATE UNIQUE INDEX "User_username_key" ON "User"("username");
 
@@ -52,10 +73,16 @@ CREATE UNIQUE INDEX "User_username_key" ON "User"("username");
 CREATE UNIQUE INDEX "Song_name_key" ON "Song"("name");
 
 -- AddForeignKey
-ALTER TABLE "Song" ADD CONSTRAINT "Song_genreId_fkey" FOREIGN KEY ("genreId") REFERENCES "Genre"("id") ON DELETE RESTRICT ON UPDATE CASCADE;
+ALTER TABLE "Song" ADD CONSTRAINT "Song_genreId_fkey" FOREIGN KEY ("genreId") REFERENCES "Genre"("id") ON DELETE SET NULL ON UPDATE CASCADE;
 
 -- AddForeignKey
-ALTER TABLE "Song" ADD CONSTRAINT "Song_artistId_fkey" FOREIGN KEY ("artistId") REFERENCES "Artist"("id") ON DELETE RESTRICT ON UPDATE CASCADE;
+ALTER TABLE "Song" ADD CONSTRAINT "Song_artistId_fkey" FOREIGN KEY ("artistId") REFERENCES "Artist"("id") ON DELETE SET NULL ON UPDATE CASCADE;
 
 -- AddForeignKey
 ALTER TABLE "Song" ADD CONSTRAINT "Song_albumId_fkey" FOREIGN KEY ("albumId") REFERENCES "Album"("id") ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "LessonHistory" ADD CONSTRAINT "LessonHistory_userID_fkey" FOREIGN KEY ("userID") REFERENCES "User"("id") ON DELETE RESTRICT ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "LessonHistory" ADD CONSTRAINT "LessonHistory_lessonID_fkey" FOREIGN KEY ("lessonID") REFERENCES "Lesson"("id") ON DELETE RESTRICT ON UPDATE CASCADE;