列过滤器

<script setup lang="ts">
import type {
  ColumnFiltersState } from '@tanstack/vue-table'
import {
  FlexRender,
  createColumnHelper,
  getCoreRowModel,
  getFacetedMinMaxValues,
  getFacetedRowModel,
  getFacetedUniqueValues,
  getFilteredRowModel,
  useVueTable
} from '@tanstack/vue-table'
import { ref } from 'vue'
import DebouncedInput from './DebouncedInput.vue'
import Filter from './Filter.vue'

type Person = {
  firstName: string
  lastName: string
  age: number
  visits: number
  status: string
  progress: number
}

const defaultData: Person[] = [
  {
    firstName: 'tanner',
    lastName: 'linsley',
    age: 24,
    visits: 100,
    status: 'In Relationship',
    progress: 50
  },
  {
    firstName: 'tandy',
    lastName: 'miller',
    age: 40,
    visits: 40,
    status: 'Single',
    progress: 80
  },
  {
    firstName: 'joe',
    lastName: 'dirte',
    age: 45,
    visits: 20,
    status: 'Complicated',
    progress: 10
  }
]

const columnHelper = createColumnHelper<Person>()
const columns = [
  columnHelper.group({
    header: 'Name',
    footer: props => props.column.id,
    columns: [
      columnHelper.accessor('firstName', {
        cell: info => info.getValue(),
        footer: props => props.column.id
      }),
      columnHelper.accessor(row => row.lastName, {
        id: 'lastName',
        cell: info => info.getValue(),
        header: () => 'Last Name',
        footer: props => props.column.id
      })
    ]
  }),
  columnHelper.group({
    header: 'Info',
    footer: props => props.column.id,
    columns: [
      columnHelper.accessor('age', {
        header: () => 'Age',
        footer: props => props.column.id
      }),
      columnHelper.group({
        header: 'More Info',
        columns: [
          columnHelper.accessor('visits', {
            header: () => 'Visits',
            footer: props => props.column.id
          }),
          columnHelper.accessor('status', {
            header: 'Status',
            footer: props => props.column.id
          }),
          columnHelper.accessor('progress', {
            header: 'Profile Progress',
            footer: props => props.column.id
          })
        ]
      })
    ]
  })
]

const data = ref(defaultData)
const rerender = () => {
  data.value = defaultData
}

// 创建用于存储列过滤状态的响应式变量
// ColumnFiltersState 是一个数组，包含每个列的过滤条件
// 初始值为空数组，表示没有应用任何列过滤器
const columnFilters = ref<ColumnFiltersState>([])

// 创建用于存储全局过滤值的响应式变量
// 用于全局搜索功能，会对所有列进行过滤
// 初始值为空字符串，表示没有应用全局过滤
const globalFilter = ref('')

const table = useVueTable({
  get data() {
    return data.value
  },
  columns,
  state: {
    get columnFilters() {
      return columnFilters.value
    },
    get globalFilter() {
      return globalFilter.value
    }
  },
  onColumnFiltersChange: (updaterOrValue) => {
    columnFilters.value
      = typeof updaterOrValue === 'function'
        ? updaterOrValue(columnFilters.value)
        : updaterOrValue
  },
  onGlobalFilterChange: (updaterOrValue) => {
    globalFilter.value
      = typeof updaterOrValue === 'function'
        ? updaterOrValue(globalFilter.value)
        : updaterOrValue
  },
  getCoreRowModel: getCoreRowModel(),
  getFilteredRowModel: getFilteredRowModel(),
  getFacetedRowModel: getFacetedRowModel(),
  getFacetedUniqueValues: getFacetedUniqueValues(),
  getFacetedMinMaxValues: getFacetedMinMaxValues()
})
</script>

<template>
  <div class="p-2">
    <div>
      <!-- 全局过滤器 -->
      <DebouncedInput
        :model-value="globalFilter ?? ''"
        class-name="p-2 font-lg shadow border border-block"
        placeholder="Search all columns..."
        @update:model-value="value => (globalFilter = String(value))"
      />
    </div>
    <div className="h-2" />
    <table>
      <thead>
        <tr
          v-for="headerGroup in table.getHeaderGroups()"
          :key="headerGroup.id"
        >
          <th
            v-for="header in headerGroup.headers"
            :key="header.id"
            :colSpan="header.colSpan"
          >
            <FlexRender
              v-if="!header.isPlaceholder"
              :render="header.column.columnDef.header"
              :props="header.getContext()"
            />
            <!-- 自定义 列过滤器 -->
            <template
              v-if="!header.isPlaceholder && header.column.getCanFilter()"
            >
              <Filter
                :column="header.column"
                :table="table"
              />
            </template>
          </th>
        </tr>
      </thead>
      <tbody>
        <tr
          v-for="row in table.getRowModel().rows"
          :key="row.id"
        >
          <td
            v-for="cell in row.getVisibleCells()"
            :key="cell.id"
          >
            <FlexRender
              :render="cell.column.columnDef.cell"
              :props="cell.getContext()"
            />
          </td>
        </tr>
      </tbody>
      <tfoot>
        <tr
          v-for="footerGroup in table.getFooterGroups()"
          :key="footerGroup.id"
        >
          <th
            v-for="header in footerGroup.headers"
            :key="header.id"
            :colSpan="header.colSpan"
          >
            <FlexRender
              v-if="!header.isPlaceholder"
              :render="header.column.columnDef.footer"
              :props="header.getContext()"
            />
          </th>
        </tr>
      </tfoot>
    </table>
    <div class="h-4" />
    <button
      class="border p-2"
      @click="rerender"
    >
      Rerender
    </button>
  </div>
</template>

<style>
html {
  font-family: sans-serif;
  font-size: 14px;
}

table {
  border: 1px solid lightgray;
}

tbody {
  border-bottom: 1px solid lightgray;
}

th {
  border-bottom: 1px solid lightgray;
  border-right: 1px solid lightgray;
  padding: 2px 4px;
}

tfoot {
  color: gray;
}

tfoot th {
  font-weight: normal;
}
</style>