獲取其他reducer的狀態與react-redux

我想知道是否有可能在減速機中獲得另一個reducer的狀態。我正在使用react-redux：獲取其他reducer的狀態與react-redux

import * as reducers from "./client/components/reducers"; 
const reducer = combineReducers({ 
    ...reducers, 
    routing : routerReducer, 
}); 

const store = createStore(
    reducer, 
    DevTools.instrument() 
);

我有兩個減速器：錢包和操作。當我添加/更新操作時，我想計算我的錢包總額並將其保存在我的錢包減速器中。

這裏是我的錢包減速機：

import { INSERT, UPDATE, DELETE, UPDATE_ALL, SET_TOTAL } from "./wallets.constants"; 
import { INSERT as INSERT_OPERATION, UPDATE as UPDATE_OPERATION, DELETE as DELETE_OPERATION } from "../operations/operations.constants"; 

export default (state = initialState, action) => { 
    const result = Object.assign({}, state); 
    if (action.wallet && !action.wallet.uuid) { 
    return state; 
    } 
    switch(action.type) { 
    case INSERT : 
    case UPDATE : 
    case DELETE : 
     result[action.wallet.uuid] = action.wallet; 
     return result; 
    case INSERT_OPERATION : 
    case UPDATE_OPERATION : 
    case DELETE_OPERATION : 
     // Here I want to calculate total of operations in this wallet 
     return result; 
    default : return state 
    } 
}

我之後要增加我總對每個插入的不是重新計算所有的總每一次，但如果它是一個更新是不可能的，因爲我需要遞減老我在這裏沒有的價值。

謝謝你幫

來源

2016-11-20 Ludo