在 redux 中存储更新的值

Posted 2023-02-16

【中文标题】在 redux 中存储更新的值

【英文标题】：store updated value in redux

【发布时间】：2022-01-06 02:53:08

【问题描述】：

我从导航中获得了两个值，即公司和 id。

let id = props.route.params.oved.toString();
console.log("id-->",id);
let company = props.route.params.company.toString();
console.log("company--->",company);

我得到了两个像这样的整数值：--

id-->1

comapny-->465

enter image description here

图片说明：---

如果我在该 textInput 中输入 1 并单击卡片（让我们说第一张卡片 ie465，那么我在导航中得到这两个值，就像我上面提到的整数一样。所以每次我得到更新的值.

我正在从导航中获取更新的值。

所以我想将这些值存储在 redux 中。

action.js:--

import  CHANGE_SELECTED_COMPANY  from "./action-constants";
export const changeCompany = (updatedCompany, updatedId) => 
  return 
    type: CHANGE_SELECTED_COMPANY,
    updatedCompany,
    updatedId,
  ;
;

reducer.js:--

import  CHANGE_SELECTED_COMPANY  from "../actions/action-constants";

const initialState = 
  company: "",
  id: "",
;
const changeCompanyReducer = (state = initialState, action) => 
  switch (action.type) 
    case CHANGE_SELECTED_COMPANY:
      return 
        company: 
          company: action.updatedCompany,
          id: action.updatedId,
        ,
      ;
    
  
  return state;
;

export default changeCompanyReducer;

configure-store.js:--

import changeCompanyReducer from "./reducers/change-company-reducer";
const rootReducer = combineReducers(changeCompanyReducer);

如何在 Redux 中存储从导航获取的更新值？

能否请你为 redux 写代码？

【问题讨论】：

请编辑问题以将其限制为具有足够详细信息的特定问题，以确定适当的答案。

【参考方案1】：

首先，我建议您像这样编写您的操作：

import  CHANGE_SELECTED_COMPANY  from "./action-constants";
export const changeCompany = (payload) => 
  return 
    type: CHANGE_SELECTED_COMPANY,
    payload // inside payload you can pass:  updatedCompany: '...', updatedId: '...' 
  ;
;

然后你需要将你的减速器从你写的改为这个：

import  CHANGE_SELECTED_COMPANY  from "../actions/action-constants";

const initialState = 
  company: "",
  id: "",
;
const changeCompanyReducer = (state = initialState, action) => 
  switch (action.type) 
    case CHANGE_SELECTED_COMPANY:
      const  updatedCompany, updatedId  = action.payload;
      
      // notice the changes I made in the return statment.
      return 
        ...state,
        company: updatedCompany,
        id: updatedId
      ;
    
    // you can return the state here
    default:
      return state;
  
;

export default changeCompanyReducer;