Question

我收到DataTables警告：table id = DataTables_Table_0-Ajax错误。多数情况下会返回正确的数据，但是每三到四次调用一次，就会出现此警告，并且数据表中未加载任何数据。有人可以识别我的代码有什么问题吗？我是Web开发的初学者。

在调试时，我发现出现此警告时未发送对控制器的调用。控制台显示“ 404 Not found”。我认为这是找不到的路线。但是，为什么它大多数时候都在加载。我还在控制器中放置了一个Info（$ request），出现此错误时Laravel日志为空。

我正在使用Laravel 5.8。 HTML代码是：

    <div class="box-body">
        <table class="data-table display compact">
            <thead>
            <tr>
                <th width="50px">Action</th>
                <th>Date</th>
                <th>Ref. No.</th>
                <th>Supplier</th>
                <th>Inv. No.</th>
                <th>Inv. Date</th>
                <th>Total</th>
                <th>Freight</th>
                <th>Discount</th>
                <th>Cash</th>
                <th>Net Total</th>
                <th>Remarks</th>
                <th>Status</th>
            </tr>
            </thead>

            <tbody>

            </tbody>
        </table>
    </div>

Ajax代码：

            var table = $('.data-table').DataTable({
                processing: true,
                serverSide: true,
                ajax: "{{ route('purchlist') }}",
                columns: [
                    {data: 'action', name: 'action', orderable: false, searchable: false, width: "50px"},
                    {data: 'date', name: 'date'},
                    {data: 'refno', name: 'refno'},
                    {data: 'title', name: 'title'},
                    {data: 'sup_invno', name: 'sup_invno'},
                    {data: 'sup_invdate', name: 'sup_invdate'},
                    {data: 'total', name: 'total'},
                    {data: 'freight', name: 'freight'},
                    {data: 'discount', name: 'discount'},
                    {data: 'cash', name: 'cash'},
                    {data: 'nettotal', name: 'nettotal'},
                    {data: 'remarks', name: 'remarks'},
                    {data: 'status', name: 'status'},
                ]
            });

和控制器代码：

    public function index(Request $request)
    {
        $branch_id=session()->get('lbranch','0');
        if ($branch_id==0){
            return redirect()->route('login');
        }

       if ($request->ajax()) {
            $data = DB::table('purchases')
                ->where('purchases.branchid',$branch_id)
                ->where('accounts.branchid',$branch_id)
                ->leftjoin('accounts','purchases.account_code','=','accounts.code')
                ->select('purchases.*',
                    DB::raw('(CASE 
                        WHEN purchases.posted = "1" THEN "Posted" 
                        ELSE "Unposted" 
                        END) AS status'),
                    'accounts.title')
                ->latest()->get();

            return Datatables::of($data)
                ->addIndexColumn()
                ->addColumn('action', function($row){
                    $btn = '<a href="javascript:void(0)" data-toggle="tooltip"  data-id="'.$row->id.'" data-original-title="Edit" class="edit btn btn-primary btn-sm editPurchase"><i class="fa fa-edit"></i></a>';
                    $btn = $btn.' <a href="javascript:void(0)" data-toggle="tooltip"  data-id="'.$row->id.'" data-original-title="Delete" class="btn btn-danger btn-sm deletePurchase"><i class="fa fa-trash"></i></a>';
                    return $btn;
                })
                ->rawColumns(['action'])
                ->make(true);
        }
        return view('purchases',compact('purchases'));
    }

无法对数据表进行ajax调用。返回404未找到

0 个答案: