How to set the attributes of multiple subitems of v-treeview

Question

Suppose I have variable items with the following structure: [{id:1,name:'value1',item_nested:[{id:2,name:'value2',},{id:3,name:'value3',nested_item: [{id:4,name:'value4'}]}]}] In v-treeview we have a props called item-children which accepts a string which allows to set which property will be referenced as a child . at first

P粉850680329 · Answer

VTreeView uses a string as the key for the child, so - without extending/overwriting the original component - I don't see a way to provide an alternative key for the child .

However, you can always "retype" the objects you want to display in VTreeview (this code snippet only applies to this specific case, but can be generalized to other cases):

new Vue({
  el: '#app',
  vuetify: new Vuetify(),
  computed: {
    // "re-keying" items:
    modifiedTreeviewItems() {
      const updateItemKeys = (items) => {
        if (!items.length) return []

        const mapped = items.map((item) => {
          const {
            item_nested = [], nested_item = [], ...rest
          } = item
          const children = item_nested.length ? item_nested : nested_item.length ? nested_item : []
          return {
            ...rest,
            children: updateItemKeys(children),
          }
        })
        return mapped
      }
      return updateItemKeys(this.treeviewItems)
    },
  },
  data() {
    return {
      treeviewItems: [{
        id: 1,
        name: 'value1',
        item_nested: [{
            id: 2,
            name: 'value2',
          },
          {
            id: 3,
            name: 'value3',
            nested_item: [{
              id: 4,
              name: 'value4'
            }]
          }
        ]
      }]
    }
  },
})

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