redux组织代码之：分割action

[youngwind]

前言

刚刚开始用redux的时候因为应用比较小，而且是单枪匹马，所以所有的action都写在一个action.js里面。后来随着应用的膨胀以及多人协作，这样显然是不行的。所以，应该像分割reducer那样分割action.
#1. action

// postAction.js
// 点击刷新按钮
exports.invalidateReddit = function (reddit) {
  return {
    type: types.INVALIDATE_REDDIT,
    reddit: reddit
  };
};

/**
 * 根据文章类型发出请求
 * @param reddit {string} 文章的类别 reactjs/frontend
 * @returns {{type: null, reddit: *}}
 */
exports.requestPosts = function (reddit) {
  return {
    type: types.REQUEST_POSTS,
    reddit: reddit
  };
};
……

// numberAction.js
import {actionCreator} from "redux-action-utils";
import types from "../constants/ActionTypes.js";

exports.addTag = actionCreator(types.ADD_TAG, "state");

合成的action

// rootAction.js
import * as post from "./postAction.js";
import * as number from "./numberAction.js";

module.exports = {
  post: post,
  number: number
};

#2. 在container上应用他们

之前在container上绑定dispatch到action的时候是这样写的。

import action from "../action/action.js";
function mapDispatchToProps(dispatch) {
  return {
    action: bindActionCreators(action, dispatch),
  };
}

现在因为action是组合的action，所以大概要写成这个样子。

import actions from "../action/rootActions.js";
function mapDispatchToProps(dispatch) {
  return {
    postActions: bindActionCreators(actions.post, dispatch),
    numberActions: bindActionCreators(actions.number, dispatch)
  };
}