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我想知道是否有可能在减速机中获得另一个reducer的状态。我正在使用react-redux:获取其他reducer的状态与react-redux
import * as reducers from "./client/components/reducers";
const reducer = combineReducers({
...reducers,
routing : routerReducer,
});
const store = createStore(
reducer,
DevTools.instrument()
);
我有两个减速器:钱包和操作。 当我添加/更新操作时,我想计算我的钱包总额并将其保存在我的钱包减速器中。
这里是我的钱包减速机:
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
}
}
我之后要增加我总对每个插入的不是重新计算所有的总每一次,但如果它是一个更新是不可能的,因为我需要递减老我在这里没有的价值。
谢谢你帮