Need Help with Grouping

[rlawrence89]

I am trying to group columns. I literally copied the table example. Only thing different and just minor, i do not use column groups. When i group the column data disappears and it does not collapse the table.

Here is my code:

import React, { useMemo, useState } from 'react'
import {
  ColumnDef,
  GroupingState,
  createColumn,
  createColumnHelper,
  flexRender,
  getCoreRowModel,
  getExpandedRowModel,
  useReactTable,
} from '@tanstack/react-table'
import Link from 'next/link'

type Props = {
  caseData: CaseEvidence[]
}
type CaseInfo = {
  case_unique_id: string
}
type CaseEvidence = {
  case_name: string
  case_number: string
  assigned_analyst: string
  status: string
  bureau: string
  ada: string
  evidence_number: string
  case_case: CaseInfo
}

const SAMPLE_DATA = [
  {
    case_name: 'Case Name 1',
    case_number: '12345',
    assigned_analyst: 'Analyst A',
    status: 'Open',
    bureau: 'Bureau X',
    ada: 'ADA Y',
    evidence_number: 'EVID123',
    case_case: { case_unique_id: 'ID-1' },
  },
  {
    case_name: 'Case Name 2',
    case_number: '12346',
    assigned_analyst: 'Analyst B',
    status: 'Closed',
    bureau: 'Bureau Y',
    ada: 'ADA Z',
    evidence_number: 'EVID124',
    case_case: { case_unique_id: 'ID-2' },
  },
  {
    case_name: 'Case Name 1',
    case_number: '12345',
    assigned_analyst: 'Analyst A',
    status: 'Open',
    bureau: 'Bureau X',
    ada: 'ADA Y',
    evidence_number: 'EVID123',
    case_case: { case_unique_id: 'ID-1' },
  },
  {
    case_name: 'Case Name 2',
    case_number: '12346',
    assigned_analyst: 'Analyst B',
    status: 'Closed',
    bureau: 'Bureau Y',
    ada: 'ADA Z',
    evidence_number: 'EVID124',
    case_case: { case_unique_id: 'ID-2' },
  },
  {
    case_name: 'Case Name 1',
    case_number: '12345',
    assigned_analyst: 'Analyst A',
    status: 'Open',
    bureau: 'Bureau X',
    ada: 'ADA Y',
    evidence_number: 'EVID123',
    case_case: { case_unique_id: 'ID-1' },
  },
  {
    case_name: 'Case Name 2',
    case_number: '12346',
    assigned_analyst: 'Analyst B',
    status: 'Closed',
    bureau: 'Bureau Y',
    ada: 'ADA Z',
    evidence_number: 'EVID124',
    case_case: { case_unique_id: 'ID-2' },
  },
  {
    case_name: 'Case Name 1',
    case_number: '12345',
    assigned_analyst: 'Analyst A',
    status: 'Open',
    bureau: 'Bureau X',
    ada: 'ADA Y',
    evidence_number: 'EVID123',
    case_case: { case_unique_id: 'ID-1' },
  },
  {
    case_name: 'Case Name 2',
    case_number: '12346',
    assigned_analyst: 'Analyst B',
    status: 'Closed',
    bureau: 'Bureau Y',
    ada: 'ADA Z',
    evidence_number: 'EVID124',
    case_case: { case_unique_id: 'ID-2' },
  },
  {
    case_name: 'Case Name 1',
    case_number: '12345',
    assigned_analyst: 'Analyst A',
    status: 'Open',
    bureau: 'Bureau X',
    ada: 'ADA Y',
    evidence_number: 'EVID123',
    case_case: { case_unique_id: 'ID-1' },
  },
  {
    case_name: 'Case Name 2',
    case_number: '12346',
    assigned_analyst: 'Analyst B',
    status: 'Closed',
    bureau: 'Bureau Y',
    ada: 'ADA Z',
    evidence_number: 'EVID124',
    case_case: { case_unique_id: 'ID-2' },
  },
]
const CasesTable = ({ caseData }: Props) => {
  const rerender = React.useReducer(() => ({}), {})[1]
  const [data, setData] = useState<CaseEvidence[]>(SAMPLE_DATA)
  const [grouping, setGrouping] = useState<GroupingState>([])
  const columnHelper = createColumnHelper<CaseEvidence>()
  console.log('CASE DATA', caseData)
  const COLUMNS = [
    columnHelper.accessor('case_number', {
      header: 'CASE NUMBER',
      getGroupingValue: (row) => row.case_number,
      // cell: (info) => {
      //   // console.log('CASE NUMBER INFO', info)
      //   return (
      //     // <Link href={`/cases/${info.row.original.case_case.case_unique_id}`}>
      //     //   <a className="text-blue-600 font-bold">{info.getValue()}</a>
      //     // </Link>
      //     info.getValue()
      //   )
      // },
    }),

    columnHelper.accessor('case_name', {
      header: 'CASE NAME',
      cell: (info) => info.getValue(),
    }),

    columnHelper.accessor('bureau', {
      header: 'BUREAU',
      cell: (info) => info.getValue(),
    }),
    columnHelper.accessor('ada', {
      header: 'ADA',
      cell: (info) => info.getValue(),
    }),
    columnHelper.accessor('status', {
      header: 'STATUS',
    }),
    columnHelper.accessor('evidence_number', {
      header: 'EVIDENCE NUMBER',
      cell: (info) => info.getValue(),
    }),
  ]
  //@ts-ignore
  const table = useReactTable({
    data,
    columns: COLUMNS,
    state: {
      grouping,
    },
    groupedColumnMode: false,
    onGroupingChange: setGrouping,
    getExpandedRowModel: getExpandedRowModel(),
    getGroupedRowModel: getCoreRowModel(),
    getCoreRowModel: getCoreRowModel(),
    debugTable: true,
  })

  return (
    <div className="p-2">
      <div className="h-2" />
      <table>
        <thead>
          {table.getHeaderGroups().map((headerGroup) => (
            <tr key={headerGroup.id}>
              {headerGroup.headers.map((header) => {
                return (
                  <th key={header.id} colSpan={header.colSpan}>
                    {header.isPlaceholder ? null : (
                      <div>
                        {header.column.getCanGroup() ? (
                          // If the header can be grouped, let's add a toggle
                          <button
                            {...{
                              onClick: header.column.getToggleGroupingHandler(),
                              style: {
                                cursor: 'pointer',
                              },
                            }}
                          >
                            {header.column.getIsGrouped()
                              ? `🛑(${header.column.getGroupedIndex()}) `
                              : `👊 `}
                          </button>
                        ) : null}{' '}
                        {flexRender(
                          header.column.columnDef.header,
                          header.getContext()
                        )}
                      </div>
                    )}
                  </th>
                )
              })}
            </tr>
          ))}
        </thead>
        <tbody>
          {table.getRowModel().rows.map((row) => {
            return (
              <tr key={row.id}>
                {row.getVisibleCells().map((cell) => {
                  return (
                    <td
                      {...{
                        key: cell.id,
                        style: {
                          background: cell.getIsGrouped()
                            ? '#0aff0082'
                            : cell.getIsAggregated()
                            ? '#ffa50078'
                            : cell.getIsPlaceholder()
                            ? '#ff000042'
                            : 'white',
                        },
                      }}
                    >
                      {cell.getIsGrouped() ? (
                        // If it's a grouped cell, add an expander and row count
                        <>
                          <button
                            {...{
                              onClick: row.getToggleExpandedHandler(),
                              style: {
                                cursor: row.getCanExpand()
                                  ? 'pointer'
                                  : 'normal',
                              },
                            }}
                          >
                            {row.getIsExpanded() ? '👇' : '👉'}{' '}
                            {flexRender(
                              cell.column.columnDef.cell,
                              cell.getContext()
                            )}{' '}
                            ({row.subRows.length})
                          </button>
                        </>
                      ) : cell.getIsAggregated() ? (
                        // If the cell is aggregated, use the Aggregated
                        // renderer for cell
                        flexRender(
                          cell.column.columnDef.aggregatedCell ??
                            cell.column.columnDef.cell,
                          cell.getContext()
                        )
                      ) : cell.getIsPlaceholder() ? null : ( // For cells with repeated values, render null
                        // Otherwise, just render the regular cell
                        flexRender(
                          cell.column.columnDef.cell,
                          cell.getContext()
                        )
                      )}
                    </td>
                  )
                })}
              </tr>
            )
          })}
        </tbody>
      </table>
      <div className="h-2" />
      <div className="flex items-center gap-2">
        <button
          className="border rounded p-1"
          onClick={() => table.setPageIndex(0)}
          disabled={!table.getCanPreviousPage()}
        >
          {'<<'}
        </button>
        <button
          className="border rounded p-1"
          onClick={() => table.previousPage()}
          disabled={!table.getCanPreviousPage()}
        >
          {'<'}
        </button>
        <button
          className="border rounded p-1"
          onClick={() => table.nextPage()}
          disabled={!table.getCanNextPage()}
        >
          {'>'}
        </button>
        <button
          className="border rounded p-1"
          onClick={() => table.setPageIndex(table.getPageCount() - 1)}
          disabled={!table.getCanNextPage()}
        >
          {'>>'}
        </button>
        <span className="flex items-center gap-1">
          <div>Page</div>
          <strong>
            {table.getState().pagination.pageIndex + 1} of{' '}
            {table.getPageCount()}
          </strong>
        </span>
        <span className="flex items-center gap-1">
          | Go to page:
          <input
            type="number"
            defaultValue={table.getState().pagination.pageIndex + 1}
            onChange={(e) => {
              const page = e.target.value ? Number(e.target.value) - 1 : 0
              table.setPageIndex(page)
            }}
            className="border p-1 rounded w-16"
          />
        </span>
        <select
          value={table.getState().pagination.pageSize}
          onChange={(e) => {
            table.setPageSize(Number(e.target.value))
          }}
        >
          {[10, 20, 30, 40, 50].map((pageSize) => (
            <option key={pageSize} value={pageSize}>
              Show {pageSize}
            </option>
          ))}
        </select>
      </div>
      <div>{table.getRowModel().rows.length} Rows</div>
      <div>
        <button onClick={() => rerender()}>Force Rerender</button>
      </div>
      <div>
        {/* <button onClick={() => refreshData()}>Refresh Data</button> */}
      </div>
      <pre>{JSON.stringify(grouping, null, 2)}</pre>
    </div>
  )
}

export default CasesTable

[rlawrence89]

I finally found the error. I was using the coreRowmodel function in the grouped row model designation.