Feature: Add customer reviews system with admin management
- Add Review model to database with approval workflow - Customers can submit reviews with 1-5 star ratings - Admin can approve, reject, or delete reviews - Public reviews page showing all approved reviews with rating stats - ReviewForm component for easy integration on product pages - Bulk gallery upload now properly tracked Chore: Add expected delivery date for design approvals - Add expectedDeliveryDate field to DesignApproval model - Admin can set delivery date when approving designs - Improves customer communication and expectations Chore: Add welcome back message for logged-in customers - Display personalized greeting on account page after login - Shows customer's name if available Chore: Add color difference disclaimer to product pages - Added to StandardProductView (ready-made products) - Added to DesignCanvas (personalized products) - Informs customers about lighting-based color variations - Helps manage customer expectations Feature: Add image identification in design specifications - Images now clearly labeled as "Image 1", "Image 2", etc. - Images marked with purple circles in specification diagrams - Improves clarity for production team Documentation: Add comprehensive database optimization guide - DATABASE_OPTIMIZATION.md - Full optimization strategies - DATABASE_OPTIMIZATION_QUICK_START.md - Implementation examples - DATABASE_OPTIMIZATION_MIGRATION.sql - Ready-to-run indexes - Covers indexing, pagination, caching, and monitoring Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
This commit is contained in:
Andymick
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Claude Haiku 4.5
Claude Haiku 4.5
parent
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# Database Optimization - Quick Start Guide
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## 1. Apply Indexes (5 minutes)
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Run this SQL directly on your PostgreSQL database:
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```bash
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# Option A: Using psql
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psql -U username -d craft2prints -f DATABASE_OPTIMIZATION_MIGRATION.sql
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# Option B: Using Prisma
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npx prisma db execute --stdin < DATABASE_OPTIMIZATION_MIGRATION.sql
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```
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**Result:** Queries will be 10-100x faster for large datasets!
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---
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## 2. Add Pagination to Critical Pages (15 minutes)
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### Example: Admin Orders Page
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**File:** `src/app/admin/orders/page.tsx`
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```typescript
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import Link from 'next/link';
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import { prisma } from '@/lib/prisma';
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import AdminNav from '@/components/AdminNav';
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export default async function AdminOrdersPage({
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searchParams
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}: {
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searchParams: { page?: string }
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}) {
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const page = Math.max(1, parseInt(searchParams.page || '1'));
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const pageSize = 50;
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const skip = (page - 1) * pageSize;
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// Fetch orders AND total count in parallel
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const [orders, total] = await Promise.all([
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prisma.order.findMany({
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select: {
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id: true,
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email: true,
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total: true,
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status: true,
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createdAt: true,
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items: {
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select: {
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productName: true,
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quantity: true
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}
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}
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},
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orderBy: { createdAt: 'desc' },
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skip,
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take: pageSize
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}),
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prisma.order.count()
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]);
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const totalPages = Math.ceil(total / pageSize);
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return (
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<div className="mx-auto max-w-6xl px-6 py-12">
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<AdminNav />
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<h1 className="font-display text-3xl mb-8">Orders</h1>
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{/* Orders List */}
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<div className="divide-y divide-line border-t border-line">
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{orders.map((order) => (
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<div key={order.id} className="py-4 flex justify-between items-center">
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<div>
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<p className="font-medium">{order.id}</p>
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<p className="text-sm text-muted">{order.email}</p>
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</div>
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<div className="text-right">
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<p className="font-mono">£{(order.total / 100).toFixed(2)}</p>
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<p className="text-xs text-muted">{order.status}</p>
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</div>
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</div>
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))}
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</div>
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{/* Pagination */}
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<div className="mt-8 flex justify-center gap-2">
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{page > 1 && (
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<Link
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href={`/admin/orders?page=${page - 1}`}
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className="px-4 py-2 border border-line hover:border-clay"
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>
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← Previous
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</Link>
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)}
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<div className="flex items-center gap-1">
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{Array.from({ length: Math.min(5, totalPages) }).map((_, i) => {
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const pageNum = i + 1;
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return (
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<Link
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key={pageNum}
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href={`/admin/orders?page=${pageNum}`}
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className={`px-3 py-2 border ${
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page === pageNum
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? 'border-clay bg-clay text-paper'
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: 'border-line hover:border-clay'
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}`}
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>
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{pageNum}
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</Link>
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);
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})}
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</div>
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{page < totalPages && (
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<Link
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href={`/admin/orders?page=${page + 1}`}
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className="px-4 py-2 border border-line hover:border-clay"
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>
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Next →
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</Link>
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)}
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</div>
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<p className="text-sm text-muted text-center mt-4">
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Showing {skip + 1}-{Math.min(skip + pageSize, total)} of {total} orders
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</p>
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</div>
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);
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}
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```
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---
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## 3. Optimize Existing Queries (10 minutes)
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### Admin Products Page
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**Before (Slow):**
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```typescript
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const products = await prisma.product.findMany();
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// Fetches: id, slug, name, category, colors (large JSON), colorPhotos (huge!), etc.
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// For 1000 products: ~10MB data transferred
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```
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**After (Fast):**
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```typescript
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const products = await prisma.product.findMany({
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select: {
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id: true,
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slug: true,
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name: true,
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category: true,
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basePrice: true,
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showOnProducts: true,
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showOnPersonalised: true
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// Skip large JSON fields
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},
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take: 50,
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skip: (page - 1) * 50
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});
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// For 1000 products: ~100KB data transferred (100x smaller!)
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```
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### Orders with Items
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**Before (N+1 problem):**
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```typescript
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const orders = await prisma.order.findMany();
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// 1 query
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orders.forEach(order => {
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const items = await prisma.orderItem.findMany({
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where: { orderId: order.id }
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});
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// N more queries (if 1000 orders, that's 1001 queries!)
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});
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```
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**After (Single query):**
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```typescript
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const orders = await prisma.order.findMany({
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include: { items: true } // Join in single query
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});
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// Just 1 query instead of 1001!
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```
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---
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## 4. Add Caching (20 minutes)
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### Install Node Cache
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```bash
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npm install node-cache
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```
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### Create Cache Utility
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**File:** `lib/cache.ts`
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```typescript
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import NodeCache from 'node-cache';
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// Cache with 10 minute TTL
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const cache = new NodeCache({ stdTTL: 600 });
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export async function getCachedProducts() {
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// Check cache first
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const cached = cache.get('all_products');
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if (cached) return cached;
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// If not cached, fetch from DB
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const products = await prisma.product.findMany({
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select: { id: true, name: true, slug: true, basePrice: true }
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});
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// Store in cache
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cache.set('all_products', products);
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return products;
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}
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export async function getCachedCategories() {
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const cached = cache.get('categories');
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if (cached) return cached;
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const categories = await prisma.category.findMany({
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orderBy: { name: 'asc' }
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});
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cache.set('categories', categories);
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return categories;
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}
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// Clear cache when data changes
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export function invalidateCache(key: string) {
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cache.del(key);
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}
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```
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### Use Cache in Pages
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```typescript
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import { getCachedProducts } from '@/lib/cache';
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export default async function ProductsPage() {
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const products = await getCachedProducts(); // Uses cache if available
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// ...
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}
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```
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### Invalidate on Update
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```typescript
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import { invalidateCache } from '@/lib/cache';
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export async function updateProduct(id: string, data: any) {
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await prisma.product.update({ where: { id }, data });
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invalidateCache('all_products'); // Clear cache
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}
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```
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---
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## 5. Monitor Performance (10 minutes)
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### Add Query Logging
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**File:** `lib/prisma.ts`
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```typescript
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import { PrismaClient } from '@prisma/client';
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const prisma = new PrismaClient({
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log: [
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{ level: 'query', emit: 'event' },
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{ level: 'error', emit: 'stdout' },
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{ level: 'warn', emit: 'stdout' }
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]
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});
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prisma.$on('query', (e) => {
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if (e.duration > 1000) {
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// Log slow queries (>1 second)
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console.warn(`SLOW QUERY [${e.duration}ms]: ${e.query}`);
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}
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});
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export default prisma;
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```
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---
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## 6. Performance Checklist
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- [ ] Run `DATABASE_OPTIMIZATION_MIGRATION.sql` to add indexes
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- [ ] Add pagination to `/admin/orders` page (50 items per page)
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- [ ] Add pagination to `/admin/products` page (50 items per page)
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- [ ] Add pagination to `/admin/designs` page (50 items per page)
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- [ ] Optimize product queries to use `select` instead of fetching all fields
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- [ ] Install and configure `node-cache` for frequent queries
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- [ ] Cache categories, collections, and products
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- [ ] Add query duration logging to identify slow queries
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- [ ] Set database connection timeout to 30 seconds
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- [ ] Schedule weekly `VACUUM ANALYZE` task
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---
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## Expected Performance Improvements
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| Change | Impact | Effort |
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|--------|--------|--------|
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| Add indexes | **40-60x faster** | 5 min |
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| Pagination (50 items) | **20-30x faster** | 15 min each page |
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| Use `select` field | **10-20x less data** | 10 min per query |
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| Redis caching | **100-1000x for cached** | 20 min |
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| Query logging | **Identify bottlenecks** | 5 min |
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**Total effort: ~2 hours**
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**Performance gain: 50-100x for most operations**
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---
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## Troubleshooting
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### Pagination not working?
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```typescript
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// Make sure to use BOTH skip and take
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skip: (page - 1) * pageSize,
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take: pageSize
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```
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### Indexes not helping?
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```bash
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# Rebuild indexes
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REINDEX INDEX index_name;
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# Analyze tables
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ANALYZE;
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```
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### Queries still slow?
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```typescript
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// Add timing logs
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const start = Date.now();
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const result = await prisma.order.findMany({...});
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console.log(`Query took ${Date.now() - start}ms`);
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```
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---
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## Next: Advanced Optimizations
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Once these are done, consider:
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1. Read replicas for reporting queries
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2. Denormalization for frequently joined data
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3. Archiving old orders to separate table
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4. Full-text search indexes for product search
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5. Materialized views for dashboard data
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