使用where条件的收集过滤方法-- Laravel

Question

我有一个集合，如果它的属性值低于当前月份，我想对其进行筛选。为此，我在集合筛选方法中使用whereBetween方法，但它不过滤任何项并返回整个集合。

我用的是Laravel 5.8

这是我的密码

碳日期

public $c_som, $c_eom

$this->c_som = Carbon::now('Asia/Kolkata')->startOfMonth();
$this->c_eom = Carbon::now('Asia/Kolkata')->endOfMonth();

集合

"cm_revenue_data": [
        {
            "candidate_full_name": "Dr. Joanne Cruickshank",
            "revenue": 1777,
            "doj": "2019-11-16",
            "is_claw_back": 1,
            "claw_back_date": "2019-10-25"
        },
        {
            "candidate_full_name": "Mack Green",
            "revenue": 2718,
            "doj": "2019-07-28",
            "is_claw_back": 1,
            "claw_back_date": "2019-10-25"
        },
        {
            "candidate_full_name": "Mrs. Mireille Beer MD",
            "revenue": 1118,
            "doj": "2019-06-18",
            "is_claw_back": 1,
            "claw_back_date": "2019-10-25"
        },
        {
            "candidate_full_name": "Phoebe Quigley",
            "revenue": 1655,
            "doj": "2019-10-10",
            "is_claw_back": 1,
            "claw_back_date": "2019-11-13"
        },
        {
            "candidate_full_name": "Johnpaul Prosacco",
            "revenue": 1312,
            "doj": "2019-07-12",
            "is_claw_back": 1,
            "claw_back_date": "2019-10-25"
        },
        {
            "candidate_full_name": "Alene Moore DVM",
            "revenue": 2059,
            "doj": "2019-10-11",
            "is_claw_back": 0,
            "claw_back_date": null
        },
        {
            "candidate_full_name": "Vida Fisher",
            "revenue": 1955,
            "doj": "2019-09-07",
            "is_claw_back": 1,
            "claw_back_date": "2019-10-25"
        }
]

滤波方法

$cm_revenue_data = $revenue_data->filter(function ($item) {

            return $item
                ->whereBetween('doj', [$this->c_som, $this->c_eom]);
                ->orWhereBetween('claw_back_date', [$this->c_som, $this->c_eom]);
        });

Answer 1

我认为使用whereBetween()并不完全正确，因为这些属性是string，而som和eom是Carbon的实例。

如果您想从集合中获取doj或claw_back_date是当前月份的项，那么只需通过首先将string转换为Carbon实例来比较该属性。

        $array = [
            [
                'doj' => '2019-11-16',
                'claw_back_date' => '2019-10-25',
            ],
            [
                'doj' => '2019-10-10',
                'claw_back_date' => '2019-11-13',
            ],
            [
                'doj' => '2019-06-18',
                'claw_back_date' => '2019-10-25',
            ],
        ];


        $now = Carbon::now();

        $collection = collect($array)->filter(function ($item) use ($now) {
            if (Carbon::createFromFormat('Y-m-d', $item['doj'])->month === $now->month) {
                return true;
            }

            if (Carbon::createFromFormat('Y-m-d', $item['claw_back_date'])->month === $now->month) {
                return true;
            }

            return false;

        });