获取Bootstrap Vue分页以使用REST API [英] Getting bootstrap vue pagination to play with REST api

问题描述

尝试使Bootstrap Vue与REST api一起玩，该api返回一页数据和记录总数(基于此):

Trying to get Bootstrap Vue to play with a REST api that returns data for one page and the total number of records (based on this):

<template>
  </div>
    <b-pagination 
      v-on:change="onPageChange" 
      :total-rows="totalRows" 
      :per-page="perPage" 
      v-model="currentPage"  />
    <b-table responsive striped hover show-empty
      stacked="md"
      :items="items"
      :fields="fields"
      :current-page="currentPage"
      :per-page="perPage"
      :filter="filter"
      :sort-by.sync="sortBy"
      :sort-desc.sync="sortDesc"
      :sort-direction="sortDirection"
      @filtered="onFiltered">
    </b-table>
  </div>
</template>
<script>
...
export default {
  name: 'TableList',
  data() {
    return {
      module: null,
      title: 'Table',
      items: [],
      fields: [],
      errors: [],
      currentPage: 1,
      perPage: 15,
      totalRows: 0,
      pageOptions: [ 5, 10, 15 ],
      sortBy: null,
      sortDesc: false,
      sortDirection: 'asc',
      filter: null,
    }
  },
  created() {
    ...
    this.fetch();
  },
  methods: {
    fetch() {
      var me = this;
      var requestParams = {
        page: this.currentPage,
        per_page: this.perPage
      };
      if(this.sortBy) {
        requestParams = Object.assign({ sort_by: this.sortBy }, requestParams);
      }
      Rest('GET', '/table/' + this.table, requestParams, this.$root.user.token)
      .then(response => {
        me.items = response.data[1]
        me.totalRows = response.data[0].total_entries
      })
      .catch(error => {
        this.errors.push('Error: ' + error.response.status + ': ' + error.response.statusText)
      })
      .finally(() => {
        //alert('turn off loader!');
      });
    }
  }
</script>

如果我获取整个表格，则此Vue可以工作.但是，当我使用REST api一次返回一页时，页面数被计算为1，并且前向和结束链接均处于非活动状态.因此，我无法触发例如第2页.

This Vue works if I fetch the entire table. However, when I use the REST api to return one page at a time, the number of pages is calculated to be 1, and the forward and end links are inactive. Thus, I am unable to trigger a request for e.g. page 2.

REST API可以正确返回表中的总行数以及所请求的行数，但是Bootstrap Vue似乎并没有监视/反应对this.totalRows的更改.

The REST api correctly returns the total number of rows in the table, and the number of rows requested, but Bootstrap Vue does not appear to be watching/reacting to changes to this.totalRows.

我错过了什么?

推荐答案

您需要在 b-table 组件上将每页道具设置为0以禁用本地分页并允许 b-pagination 处理数据.这是一个示例:

You need to set the per-page prop to 0 on the b-table component to disable the local pagination and allow b-pagination to handle the data. Here's an example:

new Vue({
  el: '#app',
  data() {
    return {
      items: [],
      fields: [{
          key: 'postId',
          label: 'Post ID'
        },
        {
          key: 'id',
          label: 'ID'
        },
        {
          key: 'name',
          label: 'Name'
        },
        {
          key: 'email',
          label: 'Email'
        },
        {
          key: 'body',
          label: 'Body'
        }
      ],
      currentPage: 0,
      perPage: 10,
      totalItems: 0
    }
  },
  mounted() {
    this.fetchData().catch(error => {
      console.error(error)
    })
  },
  methods: {
    async fetchData() {
      this.items = await fetch(`https://jsonplaceholder.typicode.com/comments?_page=${this.currentPage}&_limit=${this.perPage}`)
        .then(res => {
          this.totalItems = parseInt(res.headers.get('x-total-count'), 10)

          return res.json()
        })
        .then(items => items)
    }
  },
  watch: {
    currentPage: {
      handler: function(value) {
        this.fetchData().catch(error => {
          console.error(error)
        })
      }
    }
  }
})

<link type="text/css" rel="stylesheet" href="//unpkg.com/bootstrap/dist/css/bootstrap.min.css" />
<link type="text/css" rel="stylesheet" href="//unpkg.com/bootstrap-vue@latest/dist/bootstrap-vue.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.22/vue.js"></script>
<script src="//unpkg.com/babel-polyfill@latest/dist/polyfill.min.js"></script>
<script src="//unpkg.com/bootstrap-vue@latest/dist/bootstrap-vue.js"></script>

<div id="app">
  <b-table show-empty :items="items" :fields="fields" :current-page="currentPage" :per-page="0"></b-table>
  <b-pagination size="md" :total-rows="totalItems" v-model="currentPage" :per-page="perPage"></b-pagination>
</div>

这篇关于获取Bootstrap Vue分页以使用REST API的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！