Solid Example: Column Groups

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import { For, createSignal } from 'solid-js'
import { FlexRender, createTable, tableFeatures } from '@tanstack/solid-table'
import { makeData } from './makeData'
import type { ColumnDef } from '@tanstack/solid-table'
import type { Person } from './makeData'

const features = tableFeatures({})

const defaultColumns: Array<ColumnDef<typeof features, Person>> = [
  {
    header: 'Name',
    footer: (props) => props.column.id,
    columns: [
      {
        accessorKey: 'firstName',
        cell: (info) => info.getValue(),
        footer: (props) => props.column.id,
      },
      {
        accessorFn: (row) => row.lastName,
        id: 'lastName',
        cell: (info) => info.getValue(),
        header: () => <span>Last Name</span>,
        footer: (props) => props.column.id,
      },
    ],
  },
  {
    header: 'Info',
    footer: (props) => props.column.id,
    columns: [
      {
        accessorKey: 'age',
        header: () => 'Age',
        footer: (props) => props.column.id,
      },
      {
        header: 'More Info',
        columns: [
          {
            accessorKey: 'visits',
            header: () => <span>Visits</span>,
            footer: (props) => props.column.id,
          },
          {
            accessorKey: 'status',
            header: 'Status',
            footer: (props) => props.column.id,
          },
          {
            accessorKey: 'progress',
            header: 'Profile Progress',
            footer: (props) => props.column.id,
          },
        ],
      },
    ],
  },
]

function App() {
  const [data, setData] = createSignal(makeData(20))
  const refreshData = () => setData(makeData(20))
  const stressTest = () => setData(makeData(1_000))

  const table = createTable({
    debugTable: true,
    features,
    get data() {
      return data()
    },
    columns: defaultColumns,
  })

  return (
    <div class="demo-root">
      <div>
        <button onClick={() => refreshData()}>Regenerate Data</button>
        <button onClick={() => stressTest()}>Stress Test (1k rows)</button>
      </div>
      <table>
        <thead>
          <For each={table.getHeaderGroups()}>
            {(headerGroup) => (
              <tr>
                <For each={headerGroup.headers}>
                  {(header) => (
                    <th colSpan={header.colSpan}>
                      {header.isPlaceholder ? null : (
                        <FlexRender header={header} />
                      )}
                    </th>
                  )}
                </For>
              </tr>
            )}
          </For>
        </thead>
        <tbody>
          <For each={table.getRowModel().rows}>
            {(row) => (
              <tr>
                <For each={row.getAllCells()}>
                  {(cell) => (
                    <td>
                      <FlexRender cell={cell} />
                    </td>
                  )}
                </For>
              </tr>
            )}
          </For>
        </tbody>
        <tfoot>
          <For each={table.getFooterGroups()}>
            {(footerGroup) => (
              <tr>
                <For each={footerGroup.headers}>
                  {(header) => (
                    <th colSpan={header.colSpan}>
                      {header.isPlaceholder ? null : (
                        <FlexRender footer={header} />
                      )}
                    </th>
                  )}
                </For>
              </tr>
            )}
          </For>
        </tfoot>
      </table>
    </div>
  )
}

export default App