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我正在构建一个数据表（yajra）来从spatie/laravel-activitylog数据库表中提取数据。到目前为止一切正常，但properties数据库中的列是 json。好吧，如果我将 json 直接绘制到数据表中，我将得到一个 [object Object]。有什么方法可以在特定列中美化 json 吗？

数据表列代码：

columns: [
    { data: 'causer_type' },
    { data: 'causer_id' },
    { data: 'subject_type' },
    { data: 'subject_id' },
    { data: 'description' },
    { data: 'properties' },
    { data: 'created_at' },
    { data: 'updated_at' },
],

控制器功能：

// Get data
$dump = Activity::all();
// Return datatable
return DataTables::of($dump)->make(true);

properties转储示例：

"properties":{"old":{"email":"---","phone":"---","active":"1","country":"---","client_name":"---","date_of_birth":null,"delivery_town":"---","partner_number":null,"delivery_address":"---","delivery_zipcode":"---","facebook_profile":null,"partner_password":"---","personal_id_number":null,"accept_notifications":"1"},"attributes":{"email":"---","phone":"---","active":"1","country":"---","client_name":"---","date_of_birth":null,"delivery_town":"---","partner_number":null,"delivery_address":"---","delivery_zipcode":"---","facebook_profile":null,"partner_password":"---","personal_id_number":null,"accept_notifications":"1"}}

我试图对列进行原始编辑，但由于某种原因总是返回 null ......

任何帮助将不胜感激！谢谢。

编辑＃1我想出打印数据，但作为字符串。真的不知道可数据列是否可以存储/显示 json 数据...

// Get data
$dump = Activity::all();
// Prettify the properties column
foreach ($dump as $log)
{
    //dd(json_encode($log->properties, JSON_PRETTY_PRINT));
    $log->properties_pretty = json_encode($log->properties, JSON_PRETTY_PRINT);
}
// Return datatable
return DataTables::of($dump)->make(true);
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