feat: user attributes table (#5)

prisma/migrations/20240816085726_create_user_attributes/migration.sql

@@ -0,0 +1,30 @@
+/*
+  Warnings:
+
+  - A unique constraint covering the columns `[product_id,collection_id]` on the table `product_collections` will be added. If there are existing duplicate values, this will fail.
+
+*/
+-- CreateTable
+CREATE TABLE "user_attributes" (
+    "id" SERIAL NOT NULL,
+    "name" TEXT NOT NULL,
+    "value" TEXT NOT NULL,
+    "user_id" INTEGER NOT NULL,
+
+    CONSTRAINT "user_attributes_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE INDEX "user_attributes_name_value_idx" ON "user_attributes"("name", "value");
+
+-- CreateIndex
+CREATE INDEX "user_attributes_user_id_idx" ON "user_attributes"("user_id");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "user_attributes_name_value_user_id_key" ON "user_attributes"("name", "value", "user_id");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "product_collections_product_id_collection_id_key" ON "product_collections"("product_id", "collection_id");
+
+-- AddForeignKey
+ALTER TABLE "user_attributes" ADD CONSTRAINT "user_attributes_user_id_fkey" FOREIGN KEY ("user_id") REFERENCES "users"("id") ON DELETE RESTRICT ON UPDATE CASCADE;

prisma/schema.prisma

@@ -25,13 +25,28 @@ model User {
   banner_img      String
   additional_info Json?
 
-  products Product[]
+  products        Product[]
+  user_attributes UserAttribute[]
 
   @@index(name)
   @@index(wallet_address)
   @@map("users")
 }
 
+model UserAttribute {
+  id      Int    @id @default(autoincrement())
+  name    String
+  value   String
+  user_id Int
+
+  user User @relation(fields: [user_id], references: [id])
+
+  @@unique([name, value, user_id])
+  @@index([name, value])
+  @@index(user_id)
+  @@map("user_attributes")
+}
+
 model Product {
   id          Int       @id @default(autoincrement())
   name        String
@@ -109,6 +124,7 @@ model ProductCollection {
   product    Product    @relation(fields: [product_id], references: [id])
   collection Collection @relation(fields: [collection_id], references: [id])
 
+  @@unique([product_id, collection_id])
   @@index([product_id])
   @@index([collection_id])
   @@map("product_collections")