Redux - 有什么方法可以访问 reducer 中的存储树？

Question

就我而言，我有一家像这样的商店:

{
  aa: {...},
  bb: cc  // the result of computing with aa
}

我需要更新 aa和 bb同时，但 bb需要获取 aa 的最新计算.

这是一些代码(React.js):

onClick(e) {
  const { dispatch, aa, bb } = this.props;

  dispatch(updateAa());
  dispatch(updateBb(aa)); // can not get the latest computation of aa, it is the last computation..
}

那么，这是否意味着我需要获得 aa在 bb reducer ？

我该怎么做？

希望有帮助!，谢谢!

Answer 1

不要使用 combineReducers.
示例

替换此代码

export const a = combineReducers({
  app,
  posts,
  intl,
  products,
  pos,
  cats,
});

和

export default (state = {}, action) => {
  return {
    app: app(state.app, action, state),
    posts: posts(state.posts, action, state),
    intl: intl(state.intl, action, state),
    products: products(state.products, action, state),
    pos: pos(state.pos, action, state),
    cats: cats(state.cats, action, state),
  };
};

reducer 就像

const reducer = (state = initialState, action, root) => {....}