VueJS 组件显示并将项目传递给组件

Question

我正在使用 VueJS 2.0 和 vue-router 2 并尝试显示基于路由参数的模板。我正在使用一个视图 (WidgetView) 并更改该视图中显示的组件。最初我显示一个小部件列表组件 (WidgetComponent)，然后当用户在 WidgetView 的 WidgetComponent 中选择一个小部件或新按钮时，我想换出 WidgetComponent 并显示 WidgetDetails 组件，并将信息传递给该组件：

WidgetComponent.vue:

<template>
...
<router-link :to="{ path: '/widget_view', params: { widgetId: 'new' }  }"><a> New Widget</a></router-link>
<router-link :to="{ path: '/widget_view', params: { widgetId: widget.id } }"><span>{{widget.name}}</span></router-link>
</template>
<script>
  export default {
    name: 'WidgetComponent',
    data() {
      return {
        widgets: [{ id: 1,
        name: 'widgetX',
        type: 'catcher'
      }]}
    }
  }
</script>

WidgetView.vue

<template>
  <component :is="activeComponent"></component>
</template>
<script>
  import WidgetComponent from './components/WidgetComponent'
  import WidgetDetail from './components/WidgetDetail'
  export default {
    name: 'WidgetView',
    components: {
      WidgetComponent,
      WidgetDetail
    },
    mounted: function () {
      const widgetId = this.$route.params.widgetId
      if (widgetId === 'new') {
        // I want to pass the id to this component but don't know how
        this.activeComponent = 'widget-detail'
      }
      else if (widgetId > 0) {
        // I want to pass the id to this component but don't know how
        this.activeComponent = 'widget-detail'
      }
    },
    watch: {
      '$route': function () {
        if (this.$route.params.widgetId === 'new') {
          // how to pass id to this compent?
          this.activeComponent = 'widget-detail'
        }
        else if (this.$route.params.widgetId > 0){
          // how to pass id to this compent?
          this.activeComponent = 'widget-detail'
        }
        else {
          this.activeComponent = 'widget-component'
        }
      }
    },
    data () {
      return {
        activeComponent: 'widget-component',
        widgetId: 0
      }
    }
  }
</script>

WidgetDetail.vue

<template>
<option v-for="manufacturer in manufacturers" >
    {{ manufacturer.name }}
</option>
</template>
<script>
   export default {
     props: ['sourcesId'],
     ...etc...
   }
</script>

router.js

Vue.use(Router)

export default new Router({
  routes: [
    {
      path: '/widget_view',
      component: WidgetView,
      subRoutes: {
        path: '/new',
        component: WidgetDetail
      }
    },
    {
      path: '/widget_view/:widgetId',
      component: WidgetView
    },
  ]

})

我无法让路由参数正常工作，但我设法通过对路由进行硬编码来让路由正常工作，即

<router-link :to="{ path: '/widget_view/'+ 'new' }"> New Widget</router-link>

但我不知道如何从 WidgetView 中的脚本（不是模板）代码将 id 传递给给定模板。

Answer 1

这是一个基本示例http://jsfiddle.net/ognc78e7/1/. Try using the router-view element hold your components. Also, use props inside components to pass in variables from the URL. The docs explain it much better http://router.vuejs.org/en/essentials/passing-props.html

//routes
{ path: '/foo/:id', component: Bar, props:true }
//component
const Bar = { template: '<div>The id is {{id}}</div>',props:['id'] }

不确定您想要哪种方式，但您可以将 /foo/ 路径实际作为创建小部件，然后使用动态 /foo/:id 路径。或者你可以像我在这里做的那样 foo 路径就像一个链接到不同事物的起始页。

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