x

apps/backend/prisma/schema.prisma

@@ -35,6 +35,7 @@ model Category {
   name         String                @unique
   imageUrl     String?
   products     Product[]
+  attributes   AttributeDefinition[]
   translations CategoryTranslation[]
   createdAt    DateTime              @default(now())
   updatedAt    DateTime              @updatedAt
@@ -65,6 +66,7 @@ model Product {
   options      Json?                @default("[]") // Expected shape: [{ name: "Color", values: ["Red", "Blue"] }, ...]
   variants     ProductVariant[]
   images       ProductImage[]
+  attributes   ProductAttribute[]
   reviews      Review[]
   translations ProductTranslation[]
   createdAt    DateTime             @default(now())
@@ -113,6 +115,73 @@ model ProductVariant {
   @@unique([productId, option1, option2, option3])
 }
 
+model AttributeDefinition {
+  id            Int                            @id @default(autoincrement())
+  code          String                         @unique
+  label         String
+  description   String?
+  type          String // TEXT, NUMBER, BOOLEAN, SELECT, JSON
+  unit          String?
+  options       Json? // Expected shape: [{ value: "floral", label: { th: "ดอกไม้", en: "Floral" } }]
+  isRequired    Boolean                        @default(false)
+  isFilterable  Boolean                        @default(false)
+  sortOrder     Int                            @default(0)
+  categoryId    Int?
+  category      Category?                      @relation(fields: [categoryId], references: [id], onDelete: Cascade)
+  products      ProductAttribute[]
+  translations  AttributeDefinitionTranslation[]
+  createdAt     DateTime                       @default(now())
+  updatedAt     DateTime                       @updatedAt
+
+  @@index([categoryId])
+  @@index([sortOrder])
+}
+
+model AttributeDefinitionTranslation {
+  id                   Int                 @id @default(autoincrement())
+  attributeDefinitionId Int
+  attributeDefinition  AttributeDefinition @relation(fields: [attributeDefinitionId], references: [id], onDelete: Cascade)
+  langCode             String
+  label                String
+  description          String?
+  createdAt            DateTime            @default(now())
+  updatedAt            DateTime            @updatedAt
+
+  @@unique([attributeDefinitionId, langCode])
+}
+
+model ProductAttribute {
+  id                    Int                 @id @default(autoincrement())
+  productId             Int
+  product               Product             @relation(fields: [productId], references: [id], onDelete: Cascade)
+  attributeDefinitionId Int
+  attributeDefinition   AttributeDefinition @relation(fields: [attributeDefinitionId], references: [id], onDelete: Cascade)
+  valueText             String?
+  valueNumber           Float?
+  valueBoolean          Boolean?
+  valueJson             Json?
+  translations          ProductAttributeTranslation[]
+  createdAt             DateTime            @default(now())
+  updatedAt             DateTime            @updatedAt
+
+  @@unique([productId, attributeDefinitionId])
+  @@index([productId])
+  @@index([attributeDefinitionId])
+}
+
+model ProductAttributeTranslation {
+  id                 Int              @id @default(autoincrement())
+  productAttributeId Int
+  productAttribute   ProductAttribute @relation(fields: [productAttributeId], references: [id], onDelete: Cascade)
+  langCode           String
+  valueText          String
+  createdAt          DateTime         @default(now())
+  updatedAt          DateTime         @updatedAt
+
+  @@unique([productAttributeId, langCode])
+  @@index([productAttributeId])
+}
+
 model User {
   id        Int      @id @default(autoincrement())
   username  String   @unique