javascript - Vue.js : Vuetify server side Datatable search filter not working

Question

我正在为我的数据表使用 vuetify。除搜索过滤器外，分页和排序都在工作。来自搜索过滤器的响应数据是正确的，但问题是它没有呈现对我的模板的响应。在 vuetify文档那里只有分页和排序。我正在尝试通过服务器端实现搜索功能。

我的用户.vue

export default{
    data () {
    return {
      max25chars: (v) => v.length <= 25 || 'Input too long!',
      tmp: '',
      search: '',
      totalItems: 0,
      pagination: {
        rowsPerPage: 1,
        search: ''
      },
      headers: [
        {
          text: 'Name',
          sortable: true,
          value: 'name',
          align: 'left'
        },
        {
          text: 'Email Add',
          sortable: true,
          value:'email',
          align: 'left'
        },
        {
          text: 'Roles',
          sortable: true,
          value:'roles_permissions',
          align: 'left'
        },
        {
          text: 'Date joined',
          sortable: true,
          value:'created_at',
          align: 'left'
        }
      ],
      items: [],
      loading: false,
      timer: null
    }
  },
  watch:{
    pagination:{
            handler(){
                this.getDataFromApi()
          .then(data => {
            const self = this;
            self.items = data.items;
            self.totalItems = data.total;
          })
            },
      deep: true
    }
  },
  mounted(){
    this.getDataFromApi()
        .then(data => {
            this.items = data.items;
        this.totalItems = data.total;
        });
  },
  methods:{
    getDataFromApi(search_val){
        this.loading = true;
      return new Promise((resolve, reject) => {
        const { sortBy, descending, page, rowsPerPage } = this.pagination
                const search = this.search;
        //console.log(search);
        clearTimeout(this.timer);
        this.timer = setTimeout(function(){

          axios({
            url: '/prod/api/user_table',
            method:'post',
            data:{
              sortBy : sortBy,
              descending: descending,
              page : page,
              rowsPerPage : rowsPerPage,
              search_val : search
            }
          })
          .then(response=>{
            if(response.status == 200){

              let items = response.data.data;
              const total = response.data.totalRecords;
              this.loading = false;
              resolve({
                items,
                total
              });
            }
          })
          .catch(error=>{
            if(error.response){
              console.log(error.response);
            }
          })
        },1000);
      })
    },
    fetchDataFromApi(value){
        //console.log(value);
    }
  },
  created(){

  }
}

这是我使用 laravel 的后端

public function dataTable(Request $request){
    //return Datatable::eloquent(User::query())->make(true);
    $sortBy = $request->sortBy;
    $descending = $request->descending;
    $page = $request->page;
    $rowsPerPage = $request->rowsPerPage;
    $search_val = $request->search_val;

    //echo $rowsPerPage;
    if($descending){
        $orderedBy = 'desc';
    }else{
        $orderedBy = 'asc';
    }
    $start = ($page - 1) * $rowsPerPage;


    /*$totalRec = User::all();
    if(empty(trim($search_val))){
        $user = User::orderBy($sortBy,$orderedBy)->skip($start)->take($rowsPerPage)->get();
    }else{
        $user = User::where([

        ]);
    }*/

    $query = User::query();
    $column = ['name', 'email'];
    foreach ($column as $col) {
       $query->orWhere($col, 'LIKE','%'.$search_val.'%');
    }
    $query->orderBy($sortBy,$orderedBy)->skip($start)->take($rowsPerPage);
    $arr_items = [];
    foreach ($query->get()->toArray() as $shit => $v) {
        $arr_items['data'][] = array(
            'value' => $v['id'],
            'name' => $v['name'],
            'email' => $v['email'],
            'roles_permissions' => '',
            'created_at' => $v['created_at']
        );
    }
    $arr_items['totalRecords'] = User::count();
    return response()->json($arr_items);
}

Answer 1

vuetify.js 中的服务器端搜索和数据表排序

如果我们需要在 vuetify.js 数据表 中进行服务器端搜索 和排序，我们必须在 vuejs 部分进行一些更改。

import {environment} from '../../environment';
export default {
    name: "Category",
    data() {
        return {
            categories: [],
            search: '',
            total: 0,
            loading: false,
            pagination: {},
            headers: [
                {text: 'ID', value: 'id'},
                {text: 'Name', value: 'name'},
                {text: 'Actions', value: 'name', sortable: false, align: 'center'}
            ],
            rowsPerPageItems: [5, 10, 20, 50, 100],
        }
    },
    watch: {
        pagination {
            this.getCategoriesByPagination();
        },
        search() {
            this.getCategoriesByPagination();
        }
    },
    methods: {
        getCategoriesByPagination() {
            this.loading = true;
            // get by search keyword
            if (this.search) {
                axios.get(`${environment.apiUrl}/category-filter?query=${this.search}&page=${this.pagination.page}&per_page=${this.pagination.rowsPerPage}`)
                    .then(res => {
                        this.categories = res.data.data;
                        this.total = res.data.meta.total;
                    })
                    .catch(err => console.log(err.response.data))
                    .finally(() => this.loading = false);
            }
            // get by sort option
            if (this.pagination.sortBy && !this.search) {
                const direction = this.pagination.descending ? 'desc' : 'asc';
                axios.get(`${environment.apiUrl}/category-order?direction=${direction}&sortBy=${this.pagination.sortBy}&page=${this.pagination.page}&per_page=${this.pagination.rowsPerPage}`)
                    .then(res => {
                        this.loading = false;
                        this.categories = res.data.data;
                        this.total = res.data.meta.total;
                    });
            } if(!this.search && !this.pagination.sortBy) {
                axios.get(`${environment.apiUrl}/category?page=${this.pagination.page}&per_page=${this.pagination.rowsPerPage}`)
                    .then(res => {
                        this.categories = res.data.data;
                        this.total = res.data.meta.total;
                    })
                    .catch(err => console.log(err.response.data))
                    .finally(() => this.loading = false);
            }
        }
    }
}

in html part

<v-text-field v-model="search"
              append-icon="search"
              label="Search"
              single-line
              hide-details
            ></v-text-field>

<v-data-table :headers="headers"
              :items="categories"
              :pagination.sync="pagination"
              :total-items="total"
              :rows-per-page-items="rowsPerPageItems"
              :loading="loading"
            ></v-data-table>

在 Laravel 部分，我使用了 laravel scout 包。

Controller

/**
 * Get category
 * @return \Illuminate\Http\Resources\Json\AnonymousResourceCollection
 */
public function getAll()
{
    $per_page = empty(request('per_page')) ? 10 : (int)request('per_page');
    $categories = Category::latest()->paginate($per_page);
    return CategoryResource::collection($categories);
}

/**
 * Get category by search results
 * @return \Illuminate\Http\Resources\Json\AnonymousResourceCollection
 */
public function getBySearch()
{
    $per_page = empty(request('per_page')) ? 10 : (int)request('per_page');
    $categories = Category::search(request()->query('query'))->paginate($per_page);
    return CategoryResource::collection($categories);
}

/**
 * Get category by sorting
 * @return \Illuminate\Http\Resources\Json\AnonymousResourceCollection
 */
public function getByOrder()
{
    $per_page = empty(request('per_page')) ? 10 : (int)request('per_page');
    $direction = request()->query('direction');
    $sortBy = request()->query('sortBy');
    $categories = Category::orderBy($sortBy, $direction)->paginate($per_page);
    return CategoryResource::collection($categories);
}

Route

    Route::get('category', 'Api\CategoryController@getAll');
    Route::get('category-filter', 'Api\CategoryController@getBySearch');
    Route::get('category-order', 'Api\CategoryController@getByOrder');

Model

<?php

    namespace App;

    use Illuminate\Database\Eloquent\Model;
    use Laravel\Scout\Searchable;

    class Category extends Model
    {
       use Searchable;

       /**
         * Get the indexable data array for the model.
         *
         * @return array
         */
         public function toSearchableArray()
         {
            return [
               'name' => $this->name
            ];
         }
    }