babel-plugin-dva-core-hmr

HMR support for dva-core/dva， only suppport dva>=2.4.0 or dva-core>=1.4.0. Especially useful for those apps using dva-core instead of dva. When this plugin is enabled, HMR will be enabled for dva models.

Installation

yarn

yarn add babel-plugin-dva-core-hmr

npm

npm install babel-plugin-dva-core-hmr

.babelrc:

{
  "plugins": ["dva-core-hmr"]
}

What it does

It will add HMR code for app.model call. require "dva-core": "^1.4.0"

Taking from the test snapshots, it does this:

import HomeModel from '../model/home';
      app.model(HomeModel)
 
      ↓ ↓ ↓ ↓ ↓ ↓
 
import HomeModel from '../model/home';
app.model(HomeModel);
 
if (module.hot) {
  module.hot.accept("../model/home", () => {
    try {
      let newModel = require("../model/home");
 
      if (newModel.default) newModel = newModel.default;
      app.replaceModel(newModel);
    } catch (e) {
      console.error(e);
    }
  });
}

For more usages, please find the detail in ./__tests__/index.js

Options

appNames：what dva-core/dva instance names should be matched. default: ['app']

appImport + appImportName: if app.model doesn't get run on module level, whe webpack HMR happens, HMR code of model won't get excuted, and with these two options set, HMR code of model will to promoted to module level. Please find more information in tests.

Why HMR does't work?

• Check whether babel-loader is enabled for those models.
• Check whether app.model is called. If not, please change plugin config appNames. For example, if your code has dva.model and you want to enable HMR, please change config to appNames: ['dva']