SQLSTATE [42S22]：未找到列：1054 'where 子句'中的未知列'deposits.Country'

Question

我在我的视图中准确地获取数据。但是当我尝试在我的数据表中搜索时，它给了我上面的错误..未知的列..如果它工作一次我没有得到这个，那么为什么它会在搜索时出错

$deposits2 = DB::connection('mysql')    
    ->table('deposits')
    ->join('users','users.id','=','deposits.user_id')
    ->select('deposits.*','users.Country')
    ->where('deposits.status','Approved');

Here is the error

这是我的视图文件中的代码

<script>
$(document).ready( function () {

    var table = $('#myTable2').DataTable( {
        processing: true,
                "serverSide": true,

        "ajax": {
            "url": "{{url('dashboard/adeposits/json')}}",
            "type": "GET"
        },
        "deferRender": true,

        "columns":
            [
                { "data" : "id", "title" : "Portfolio#", "searchable": true,

                    "render": function ( data, type, row, meta ) {
                        var itemID = data;
                        return '<a data-toggle="modal" data-target="#DDetailsModal" href="#" onclick="viewDetailsFunc('+row.id+')">D-'+itemID+'</a>';
                    }
                },
                { "data" : "unique_id", "title" : "UserID", "orderable": true, "searchable": true },
                { "data" : "Country", "title" : "Country", "orderable": true, "searchable": true },

Answer 1

在您的数据表中，您可以在列中设置字段名称。

{ "data" : "Country", name: "users.Country", "title" : "Country", "orderable": true, "searchable": true },

Answer 2

$deposits2 = DB::connection('mysql')    
                   ->table('deposits')
                   ->select('deposits.*','users.Country')
                   ->join('users','users.id','=','deposits.user_id')
                   ->where('deposits.status','Approved')
                   ->get();