Question

我已经使用带有DB查询的created_at列应用group by，但喜欢通过laravel eloquent

输出应该是这样的： -

Array
(
  [1] => 2
  [2] => 3
  [3] => 7
  [4] => 4
  [5] => 5
  [6] => 7
  [7] => 2
  [8] => 9
  [9] => 0
  [10] => 4
  [11] => 0
  [12] => 0
)

请提供任何帮助我这样做。

Answer 1

请尝试以下步骤： -

运行composer来安装包：composer require nesbot / carbon
在您的代码之上：使用Carbon \ Carbon;

假设我有模型用户，

$users = User::select('id', 'created_at')
->get()
->groupBy(function($date) {
    //return Carbon::parse($date->created_at)->format('Y'); // grouping by years
    return Carbon::parse($date->created_at)->format('m'); // grouping by months
});

$usermcount = [];
$userArr = [];

foreach ($users as $key => $value) {
    $usermcount[(int)$key] = count($value);
}

for($i = 1; $i <= 12; $i++){
    if(!empty($usermcount[$i])){
        $userArr[$i] = $usermcount[$i];    
    }else{
        $userArr[$i] = 0;    
    }
}

希望它可以帮助你制作这样的数组。

Answer 2

如果您的created_at列是DATETIME，则可以将其分组为

Entity::orderBy(...)->groupBy(DB::raw('MONTH(created_at)'))

您也可以提前选择月份

Entity::select(DB::raw('MONTH(created_at) as month')->groupBy('month')->get()->keyBy('month');

Answer 3

如果要基于不同年份中每个月的计数，请使用以下代码

return $usersPerMonth =User::select(DB::raw('count(id) as `data`'),DB::raw("DATE_FORMAT(created_at, '%Y-%m') new_date"))
        ->groupBy('new_date')->orderBy('new_date')->get();

Answer 4

修改 Ismael Ansari Post，

 $users = User::select('id', 'created_at')
        ->get()
        ->groupBy(function ($date) {
            return Carbon::parse($date->created_at)->format('m');
        });

    $usermcount = [];
    $userArr = [];

    foreach ($users as $key => $value) {
        $usermcount[(int)$key] = count($value);
    }

    $month = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];

    for ($i = 1; $i <= 12; $i++) {
        if (!empty($usermcount[$i])) {
            $userArr[$i]['count'] = $usermcount[$i];
        } else {
            $userArr[$i]['count'] = 0;
        }
        $userArr[$i]['month'] = $month[$i - 1];
    }

    return response()->json(array_values($userArr));

输出：

[
    {
        "count": 1,
        "month": "Jan"
    },
    {
        "count": 0,
        "month": "Feb"
    },
    {
        "count": 0,
        "month": "Mar"
    },
    {
        "count": 0,
        "month": "Apr"
    },
    {
        "count": 0,
        "month": "May"
    },
    {
        "count": 0,
        "month": "Jun"
    },
    {
        "count": 0,
        "month": "Jul"
    },
    {
        "count": 0,
        "month": "Aug"
    },
    {
        "count": 0,
        "month": "Sep"
    },
    {
        "count": 0,
        "month": "Oct"
    },
    {
        "count": 0,
        "month": "Nov"
    },
    {
        "count": 0,
        "month": "Dec"
    }
]

如何在laravel中获得所有月份记录

4 个答案: