stacks-slug

name	stacks-slug
description	Use when generating URL slugs in Stacks — creating unique slugs with database collision detection, the uniqueSlug function with table/column configuration, or basic slugification. Covers @stacksjs/slug.
license	MIT
compatibility	Bun >= 1.3.0, TypeScript
allowed-tools	Read Edit Write Bash Grep Glob

Stacks Slug

URL-friendly slug generation with database uniqueness checking.

Key Paths

• Core package: storage/framework/core/slug/src/

Unique Slug (with Database Check)

import { uniqueSlug } from '@stacksjs/slug'

// Basic usage — checks 'slug' column in inferred table
const slug = await uniqueSlug('My Blog Post Title')
// → 'my-blog-post-title'

// If 'my-blog-post-title' exists in DB:
// → 'my-blog-post-title-2'

// With options
const slug = await uniqueSlug('Product Name', {
  table: 'products',     // database table to check
  column: 'slug'         // column name (default: 'slug')
})

How Collision Detection Works

1. Slugifies the input string
2. Queries the database for existing slug
3. If collision found, appends -2, -3, etc.
4. Returns the first available slug

Basic Slugify (No Database Check)

import { slugify } from '@stacksjs/slug'

slugify('Hello World!')           // 'hello-world'
slugify('Ünïcödé Têxt')          // 'unicode-text'
slugify('  Extra   Spaces  ')    // 'extra-spaces'

Re-exported from ts-slug — handles Unicode transliteration.

Model Usage

Models typically use slugs via the slug attribute:

defineModel({
  name: 'Post',
  attributes: {
    title: { validation: { rule: schema.string() } },
    slug: {
      unique: true,
      validation: { rule: schema.string() },
      // Auto-generated from title via uniqueSlug()
    }
  }
})

SlugifyOptions

interface SlugifyOptions {
  table?: string         // database table for uniqueness check
  column?: string        // column name (default: 'slug')
}

Gotchas

• uniqueSlug() is async — it queries the database
• slugify() is sync — no database interaction
• Collision detection appends -2, -3, etc. (not random suffixes)
• Unicode characters are transliterated (u → u, e → e, etc.)
• For string-only slugification without DB, use slug() from @stacksjs/strings instead
• Tags and Categories both use unique slugs by default
• Slug columns should have a unique index in the database