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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | 8x 8x 4x 4x 2x 2x 2x 2x 3x 5x 5x 5x 2x 3x 2x | import { Commun, SecurityUtils } from '@commun/core'
import { UserModel } from '..'
export const UserUtils = {
async generateUniqueUsername (prefix: string) {
let user = await Commun.getEntityDao<UserModel>('users').findOne({ username: prefix })
if (!user) {
return prefix
}
let chars = 1
let username = prefix
while (user) {
for (let i = 0; i < 3; i++) {
username = `${prefix}-${SecurityUtils.generateRandomString(chars)}`
user = await Commun.getEntityDao<UserModel>('users')
.findOne({ username })
if (!user) {
break
}
}
chars++
}
return username
}
}
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