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我是React和MobX的新手。我读过/看过很多关于反应的教程,并与MobX结合起来反应。react/mobX:最佳实践
我需要创建一个表单,用户可以在其中选择(自动完成)产品。我正在使用react-select来执行此操作。当用户选择一个产品时,界面需要更新另一个选择,包含所选产品的位置(我还没有实现,但它将使用位置可观察的选项)。
- 有没有关于如何设置反应元素和MobX之间的通信的最佳实践?
- 'findProduct'和'findLocationAllocationData'被定义为一个动作。它是否正确?
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
}
}
而且反应的东西:
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')
);
感谢您的帮助/建议! –
为什么他会导出两个'export default UserStore;导出{UserStore};'?为什么不只是'导出默认的新的UserStore;' –