count
Count entities matching criteria
Count entities of a type, optionally with filters.
Import
import { DB } from 'ai-database'
const { db } = DB({
Post: { title: 'string', published: 'boolean' },
})Syntax
db.Type.count()
db.Type.count(where)Examples
// Count all
const total = await db.Post.count()
// 42
// Count with filter
const published = await db.Post.count({
published: true,
})
// 28With Operators
// Count recent posts
const recent = await db.Post.count({
createdAt: { $gte: lastWeek },
})
// Count by author
const byAuthor = await db.Post.count({
author: authorId,
})Use Cases
// Pagination
const total = await db.Post.count({ published: true })
const pages = Math.ceil(total / 10)
// Analytics
const stats = {
total: await db.Post.count(),
published: await db.Post.count({ published: true }),
draft: await db.Post.count({ published: false }),
}
// Progress tracking
const total = await db.Post.count()
let processed = 0
await db.forEach({ type: 'Post' }, async (post) => {
await process(post)
processed++
console.log(`${processed}/${total}`)
})Return Type
Returns a number:
const count: number = await db.Post.count()Was this page helpful?