Laravel

Question

我正在尝试将结果从数据库传递到 js 变量作为数组：

        $test_min_max_list = TestsMinMax
        ::join('results', 'tests_min_max.id', '=', 'results.test_result_id')
        ->select('created_at','min','avg','max')
        ->where([
            ['results.user_id', '=', $user_id],
            ['results.test_id', '=', $request->get('test_id')],
        ])->get();

Return 查看变量：

    return view('results', [
        'test_min_max_list' => $test_min_max_list
    ]);

页面结果：

{{$test_min_max_list}}

->

[{"created_at":"2018-01-13 22:47:17","min":0.29999999999999999,"avg":0.40000000000000002,"max":0.53000000000000003},{"created_at":"2018-01-13 22:48:58","min":0.29999999999999999,"avg":0.76300000000000001,"max":1.972},{"created_at":"2018-01-13 22:54:51","min":0.93899999999999995,"avg":2.0409999999999999,"max":3.3500000000000001},{"created_at":"2018-01-14 14:38:31","min":0.36699999999999999,"avg":0.39400000000000002,"max":0.42299999999999999},{"created_at":"2018-01-14 18:27:06","min":0.29699999999999999,"avg":0.44900000000000001,"max":0.90000000000000002},{"created_at":"2018-02-17 13:07:04","min":0.29499999999999998,"avg":0.30599999999999999,"max":0.34000000000000002},{"created_at":"2018-02-18 11:29:35","min":0.35999999999999999,"avg":0.38500000000000001,"max":0.40000000000000002}]

变量结果：

var test = {!! json_encode($test_min_max_list->toArray()) !!};

->

Array [length: 0]

我怎样才能解决这个问题并获得一个工作数组？

Answer 1

试试这个：

 $test_min_max_list = TestsMinMax
    ::join('results', 'tests_min_max.id', '=', 'results.test_result_id')
    ->select('created_at','min','avg','max')
    ->where([
        ['results.user_id', '=', $user_id],
        ['results.test_id', '=', $request->get('test_id')],
    ])->get()->toArray();

在 JS 脚本中

var array = {{ json_encode($test_min_max_list) }};

Answer 2

@ezw @都是你的

我知道问题出在哪里了...我完全错过了我正在通过：

['results.user_id', '=', $user_id],
['results.test_id', '=', $request->get('test_id')],

这些数据来自 AJAX 而我是运行

var test = {!! json_encode($test_min_max_list->toArray()) !!};

之前的这个变量，这就是为什么它是空的... 抱歉造成混淆。

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