Vuejs2 如何在应用程序启动时初始化能力实例规则？

我正在尝试用vuex和Nuxt实现CASL。当我的应用程序启动并且我已经登录时，我在尝试初始化能力规则时遇到问题

基本上，我希望在应用程序启动时获取规则并更新能力实例。但是，当我试图从存储中获取规则时，它返回

null

。目前，我需要注销并登录以获取规则

store/ability.js

import ability from '../config/ability'

export const updateAbilities = store => {
  ability.update(store['users/getRules']) // this does not work and returns null
  return store.subscribe(mutation => {
    if (mutation.type === 'users/setRules') {
      ability.update(mutation.payload)
    }
  })
}

import { Ability } from '@casl/ability'

export default new Ability()

config/ability.js

import ability from '../config/ability'

export const updateAbilities = store => {
  ability.update(store['users/getRules']) // this does not work and returns null
  return store.subscribe(mutation => {
    if (mutation.type === 'users/setRules') {
      ability.update(mutation.payload)
    }
  })
}

import { Ability } from '@casl/ability'

export default new Ability()

store/index.js

import { updateAbilities } from './ability'

export const plugins = [updateAbilities]

---

谢谢您的帮助。

我最终从本地存储中获取了该规则，并且该规则有效

import ability from '../config/ability'

export const updateAbilities = store => {
  const vuexData = JSON.parse(localStorage.getItem('vuex'))
  const rules = vuexData.users.rules

  ability.update(rules)
  return store.subscribe(mutation => {
    if (mutation.type === 'users/setRules') {
      ability.update(mutation.payload)
    }
  })
}