vuex-use-fields

A tiny (less than 1kb min'd) zero-dependency Vuex plugin to help create computed bindings for form fields in Vue 3.

install

For Vue 3

yarn add vuex-use-fields

For Vue 2 + Composition API

yarn add vuex-use-fields@two

use

To set up the store helpers, and give this plugin a reference to the store:

import { setupStore, getField, setField } from 'vuex-use-fields'

const store = {
  state: { ... },
  mutations: { setField },
  getters: { getField },
  plugins: [ setupStore ]
}

To use in a component:

import { useFields } from 'vuex-use-fields'

export default {
  setup: () => ({
    ...useFields({
      fieldOne: 'path.to.field.one' // creates a ref named 'fieldOne'
    }),
    ...useFields(['path.to.field.one']) // creates a ref named 'one'
  })
}

namespaces

If you install the getField and setField helpers at the root of your store, you can use the useFields function normally, and reference your namespaces in your paths.

• useFields(['myNamespace/path.to.field.one']) and useFields(['myNamespace.path.to.field.one']) are both fine

You can also install the helpers at the namespace level, and then use createFieldMapper to make a new useFields instance specific to that namespace.

import { createFieldMapper } from 'vuex-use-fields'
const useFieldsInMyNamespace = createFieldMapper({ getter: 'myNamespace/getField', setter: 'myNamespace/setField' })

export default {
  setup: () => ({
    ...useFieldsInMyNamespace(['path.to.field.one'])
  })
}

goals

• Keep module size as small as possible, even if this means limiting extra features
• Include createFieldMapper to support deep objects as well as namespaced stores
• Support both Vue 2 (through the Composition API), and Vue 3

anti-goals

• For now, Typescript support is not a priority of this plugin, this will be revisited once Vue 3 and Vuex 4 are released.

caveats

If a component uses this plugin in Vue 2, it must either:

• use the composition API's setup function, and not the computed block from option API
• be sourced after @vue/composition-api has been installed