react / mobX:最佳实践

时间:2017-03-31 14:25:31

标签: javascript reactjs mobx mobx-react

我对React和MobX很新。我已经阅读/观看了大量有关反应的教程,并与MobX结合起作用。

我需要创建一个表单,用户可以在其中选择(自动完成)产品。我使用react-select来做到这一点。当用户选择产品时,界面需要更新具有所选产品位置的另一个选择(我还没有实现,但它将使用位置可观察的选项)。

  • 是否有任何最佳做法'关于如何建立反应元素和MobX之间的通信?
  • ' findProduct'和'findLocationAllocationData'被定义为一种行为。这是对的吗?

感谢您的帮助!

    const {observable, action} = mobx;
    const {observer}           = mobxReact;

    class MyStore {
      product = observable({value: null});
      locations= observable({value: null,options: [],disabled: true});

      findProduct = action((input, callback) => {
        //ajax call to get products
        // JSON object as an example

        callback(null, {
          options: [{key: 1, value: 1, label: 'product a'},
            {key: 2, value: 2, label: 'product b'}
          ],
          complete: true
        })
      });

      findLocationAllocationData = action(() => {
          if (null === this.product.value) {
            return;
          }

          //ajax-call to get the locations and to update the location observable options
        }
    }

反应的东西:

 class Well extends React.Component {
        render() {
          return ( 
            <div className = "well" >
              <span className = "well-legend" > {this.props.legend} < /span> 
              {this.props.children} 
           </div>
         );
      }
    }

    class FormGroup extends React.Component {
      render() {
        return ( 
        <div className = "form-group" >
            <label htmlFor = {this.props.labelFor} > 
              {this.props.label} 
            </label> 
            {this.props.children} 
        </div>
      );
    }
    }

    const ProductSelect = observer(class ProductSelect extends React.Component {
      onChange = (e = null) => {
        this.props.store.product.value = null !== e ? e.value : null;
        this.props.store.findLocationAllocationData();
      };

      getOptions = (input, callback) => {
        this.props.store.findProduct(input, callback);
      };

      render() {
        const product = this.props.store.product;

        return ( 
        <Select.Async 
          id = "product"
          name = "product"
          className = "requiredField"
          loadOptions = {this.getOptions}
          onChange = {this.onChange}
          value = { product.value}
          />
        );
      }
    });

const MyForm = observer(class MyForm extends React.Component {
  render() {
    const store = this.props.store;

    return ( 
      <div>
        <form >
          <Well legend="Step 1 - Product">
            <div className="row">
              <div className="col-md-4">
                <FormGroup label="Product" labelFor="product">
                  <ProductSelect store={store} /> 
                </FormGroup> 
              </div> 
            </div> 
        </Well> 
     </form> 
    </div>
    )
  }
});


const myStore = new MyStore();

ReactDOM.render( 
    <MyForm store={myStore}/>, document.getElementById('root')
);

1 个答案:

答案 0 :(得分:1)

您的操作功能很好,但您必须注意:操作仅影响当前正在运行的功能。您可能希望创建一个回调操作,例如findLocationAllocationData-callbackfindProduct-callback

More info here

MobX不是一个可以构建代码的架构,因为您没有最佳实践。您可能希望将操作和API调用分开。

您可以查看this repo的灵感。