How to update nested object in redux or redux-toolkit?

Question

on edit action call, i want to set data in selectedEmp obj but keep getting immer error

const initialState = {
  currentUser: 'user2',
  users: [
    { 
      id: 'user1', email: '[email protected]', name: 'preyash', password: '[email protected]', 
      loggedIn: false, selectedEmp: {},
      emps: [
        { id: 1, empName: 'preyash', salary: '50000', gender: 'male' },
        { id: 2, empName: 'chintan', salary: '40000', gender: 'male' },
      ],
    },
    { 
      id: 'user2', email: '[email protected]', name: 'uiux5', password: '[email protected]', 
      loggedIn: true, selectedEmp: {},
      emps: [
        { id: 1, empName: 'twisha', salary: '50000', gender: 'female' },
      ],
    },
  ],
};

edit: (state, action) => {
      let obj = state.users.find(i=>i.id == state.currentUser)
      let index = state.users.findIndex(i=>i.id == state.currentUser)
      let empObj = obj.emps.find((i) => i.id == action.payload);
      state.users.splice(index, 1, { ...obj, selectedEmp: empObj })
      let newUsers = current(state.users)
      return { 
        ...state, 
        users: newUsers
      };
    },

This is the output i want, Pls HELP

{ 
      id: 'user2', email: '[email protected]', name: 'uiux5', password: '[email protected]', 
      loggedIn: true, selectedEmp: { id: 1, empName: 'twisha', salary: '50000', gender: 'female' },
      emps: [
        { id: 1, empName: 'twisha', salary: '50000', gender: 'female' },
      ],
    }

Here is the project url: https://stackblitz.com/edit/vitejs-vite-int6dt?file=src/reducers/userSlice.js

phry · Accepted Answer · 2022-05-30 14:13:57Z

1

In a createSlice reducer you can just use modifying logic, so if you want to remove an element from state.users, you just do

let index = state.users.findIndex(i=>i.id == state.currentUser)
state.users.splice(index, 1)

no additional code.

If you then want to set state.currentUser to undefined, you just do

state.currentUser = undefined

You do not need to return anything from the reducer.

I'd recommend you give writing reducers with immer a read.

answered May 30, 2022 at 14:13

phry

44.9k7 gold badges96 silver badges111 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

How to update nested object in redux or redux-toolkit?

1 Answer 1

Comments

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Related