🗃️ db: redesign collection schema with manual pivot table to media

prisma/dbml/schema.dbml

@@ -31,8 +31,8 @@ Table medias {
   bannerPromotion hero_banner [not null]
   logs media_logs [not null]
   episodes episodes [not null]
-  collections collections [not null]
   reviews movie_reviews [not null]
+  inCollections CollectionMedia [not null]
 }
 
 Table media_logs {
@@ -370,7 +370,6 @@ Table collections {
   id String [pk]
   name String [not null]
   slug String [not null]
-  medias medias [not null]
   owner users [not null]
   ownerId String [not null]
   accessStatus AccessStatus [not null, default: 'private']
@@ -380,12 +379,26 @@ Table collections {
   deletedAt DateTime
   createdAt DateTime [default: `now()`, not null]
   updatedAt DateTime [default: `now()`, not null]
+  media_saved CollectionMedia [not null]
 
   indexes {
     (slug, ownerId) [unique]
   }
 }
 
+Table CollectionMedia {
+  id String [pk]
+  collection collections [not null]
+  collectionId String [not null]
+  media medias [not null]
+  mediaId String [not null]
+  savedAt DateTime [default: `now()`, not null]
+
+  indexes {
+    (collectionId, mediaId) [unique]
+  }
+}
+
 Table watch_histories {
   id String [pk]
   episode episodes [not null]
@@ -562,9 +575,9 @@ Table MediaCharacters {
   mediasId String [ref: > medias.id]
 }
 
-Table MediaCollections {
-  collectionsId String [ref: > collections.id]
-  mediasId String [ref: > medias.id]
+Table CollectionMedia {
+  incollectionsId String [ref: > CollectionMedia.id]
+  media_savedId String [ref: > CollectionMedia.id]
 }
 
 Table UserFavoriteGenres {
@@ -752,6 +765,10 @@ Ref: user_logs.sessionId > user_sessions.id
 
 Ref: collections.ownerId > users.id
 
+Ref: CollectionMedia.collectionId > collections.id
+
+Ref: CollectionMedia.mediaId > medias.id
+
 Ref: watch_histories.id > episodes.id
 
 Ref: watch_histories.userId > users.id

prisma/migrations/20260329033709_create_table_pivot_for_media_collections/migration.sql

@@ -0,0 +1,33 @@
+/*
+  Warnings:
+
+  - You are about to drop the `_MediaCollections` table. If the table is not empty, all the data it contains will be lost.
+
+*/
+-- DropForeignKey
+ALTER TABLE "_MediaCollections" DROP CONSTRAINT "_MediaCollections_A_fkey";
+
+-- DropForeignKey
+ALTER TABLE "_MediaCollections" DROP CONSTRAINT "_MediaCollections_B_fkey";
+
+-- DropTable
+DROP TABLE "_MediaCollections";
+
+-- CreateTable
+CREATE TABLE "CollectionMedia" (
+    "id" UUID NOT NULL,
+    "collectionId" UUID NOT NULL,
+    "mediaId" UUID NOT NULL,
+    "savedAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    CONSTRAINT "CollectionMedia_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "CollectionMedia_collectionId_mediaId_key" ON "CollectionMedia"("collectionId", "mediaId");
+
+-- AddForeignKey
+ALTER TABLE "CollectionMedia" ADD CONSTRAINT "CollectionMedia_collectionId_fkey" FOREIGN KEY ("collectionId") REFERENCES "collections"("id") ON DELETE RESTRICT ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "CollectionMedia" ADD CONSTRAINT "CollectionMedia_mediaId_fkey" FOREIGN KEY ("mediaId") REFERENCES "medias"("id") ON DELETE RESTRICT ON UPDATE CASCADE;

prisma/schema.prisma

@@ -52,8 +52,8 @@ model Media {
   bannerPromotion   HeroBanner[]       @relation("MediaBannerPromotion")
   logs              MediaLog[]         @relation("MediaLogs")
   episodes          Episode[]          @relation("MediaEpisodes")
-  collections       Collection[]  @relation("MediaCollections")
   reviews           MediaReview[]      @relation("MediaReviews")
+  inCollections     CollectionMedia[]  @relation("CollectionMedia")
 
   @@index([status, onDraft, deletedAt])
   @@index([mediaType])
@@ -420,7 +420,6 @@ model Collection {
   id              String        @id @db.Uuid
   name            String        @db.VarChar(115)
   slug            String        @db.VarChar(115)
-  medias          Media[]       @relation("MediaCollections")
   owner           User          @relation("UserCollections", fields: [ownerId], references: [id])
   ownerId         String        @db.Uuid
   accessStatus    AccessStatus  @default(private)
@@ -431,10 +430,21 @@ model Collection {
   createdAt       DateTime      @default(now())
   updatedAt       DateTime      @default(now()) @updatedAt
 
+  media_saved     CollectionMedia[] @relation("CollectionMedia")
   @@unique([slug, ownerId])
   @@map("collections")
 }
 
+model CollectionMedia {
+  id            String      @id @db.Uuid
+  collection    Collection  @relation("CollectionMedia", fields: [collectionId], references: [id])
+  collectionId  String      @db.Uuid
+  media         Media       @relation("CollectionMedia", fields: [mediaId], references: [id])
+  mediaId       String      @db.Uuid
+  savedAt       DateTime    @default(now())
+  @@unique([collectionId, mediaId])
+}
+
 model WatchHistory {
   id          String      @id @db.Uuid
   episode     Episode     @relation("EpisodeWatchHistories", fields: [id], references: [id])