通过多维集合创建带有单元格的“表格”外观

如何解决通过多维集合创建带有单元格的“表格”外观

我有以下手动创建的Excel“表”，试图在Laravel-Excel 3.1中进行复制。

collection是我的json的样子：

"missingData": {
    "2010": {
        "Jan": {
            "count": 45
        },"Feb": {
            "count": 70
        },"Mar": {
            "count": 91
        },"Apr": {
            "count": 176
        },"May": {
            "count": 152
        },"Jun": {
            "count": 91
        },"Jul": {
            "count": 153
        },"Aug": {
            "count": 46
        },"Sep": {
            "count": 56
        },"Oct": {
            "count": 76
        },"Nov": {
            "count": 68
        },"Dec": {
            "count": 62
        }
    },"2011": {
        "Jan": {
            "count": 130
        },"Feb": {
            "count": 289
        },"Mar": {
            "count": 166
        },"Apr": {
            "count": 106
        },"May": {
            "count": 124
        },"Jun": {
            "count": 230
        },"Jul": {
            "count": 295
        },"Aug": {
            "count": 203
        },"Sep": {
            "count": 162
        },"Oct": {
            "count": 221
        },"Nov": {
            "count": 199
        },"Dec": {
            "count": 234
        }
    },"2012": {
        "Jan": {
            "count": 136
        },"Feb": {
            "count": 190
        },"Mar": {
            "count": 211
        },"Apr": {
            "count": 140
        },"May": {
            "count": 171
        },"Jun": {
            "count": 436
        },"Jul": {
            "count": 392
        },"Aug": {
            "count": 192
        },"Sep": {
            "count": 20
        },"Oct": {
            "count": 270
        },"Nov": {
            "count": 261
        },"Dec": {
            "count": 125
        }
    },"2013": {
        "Jan": {
            "count": 116
        },"Feb": {
            "count": 115
        },"Mar": {
            "count": 132
        },"Apr": {
            "count": 90
        },"May": {
            "count": 125
        },"Jun": {
            "count": 97
        },"Jul": {
            "count": 130
        },"Aug": {
            "count": 130
        },"Sep": {
            "count": 121
        },"Oct": {
            "count": 218
        },"Nov": {
            "count": 103
        },"Dec": {
            "count": 109
        }
    },"2014": {
        "Jan": {
            "count": 201
        },"Feb": {
            "count": 104
        },"Mar": {
            "count": 146
        },"Apr": {
            "count": 231
        },"May": {
            "count": 146
        },"Jun": {
            "count": 163
        },"Jul": {
            "count": 165
        },"Aug": {
            "count": 145
        },"Sep": {
            "count": 123
        },"Oct": {
            "count": 118
        },"Nov": {
            "count": 130
        },"Dec": {
            "count": 124
        }
    },"2015": {
        "Jan": {
            "count": 283
        },"Feb": {
            "count": 71
        },"Mar": {
            "count": 123
        },"Apr": {
            "count": 518
        },"May": {
            "count": 109
        },"Jul": {
            "count": 119
        },"Aug": {
            "count": 95
        },"Sep": {
            "count": 122
        },"Oct": {
            "count": 126
        },"Nov": {
            "count": 183
        },"Dec": {
            "count": 81
        }
    },"2016": {
        "Jan": {
            "count": 148
        },"Feb": {
            "count": 236
        },"Mar": {
            "count": 87
        },"Apr": {
            "count": 73
        },"May": {
            "count": 77
        },"Jun": {
            "count": 62
        },"Jul": {
            "count": 40
        },"Aug": {
            "count": 28
        },"Sep": {
            "count": 38
        },"Oct": {
            "count": 92
        },"Nov": {
            "count": 99
        },"Dec": {
            "count": 301
        }
    },"2017": {
        "Jan": {
            "count": 32
        },"Feb": {
            "count": 36
        },"Mar": {
            "count": 24
        },"Apr": {
            "count": 51
        },"May": {
            "count": 32
        },"Jun": {
            "count": 38
        },"Jul": {
            "count": 65
        },"Aug": {
            "count": 135
        },"Sep": {
            "count": 50
        },"Oct": {
            "count": 40
        },"Nov": {
            "count": 271
        },"Dec": {
            "count": 52
        }
    },"2018": {
        "Jan": {
            "count": 60
        },"Feb": {
            "count": 37
        },"Mar": {
            "count": 38
        },"May": {
            "count": 42
        },"Jun": {
            "count": 28
        },"Jul": {
            "count": 66
        },"Aug": {
            "count": 61
        },"Sep": {
            "count": 165
        },"Oct": {
            "count": 100
        },"Nov": {
            "count": 194
        },"Dec": {
            "count": 148
        }
    },"2019": {
        "Jan": {
            "count": 101
        },"Feb": {
            "count": 61
        },"Mar": {
            "count": 153
        },"Apr": {
            "count": 79
        },"May": {
            "count": 51
        },"Jun": {
            "count": 129
        },"Jul": {
            "count": 17
        },"Aug": {
            "count": 18
        },"Sep": {
            "count": 31
        },"Oct": {
            "count": 27
        },"Nov": {
            "count": 25
        },"Dec": {
            "count": 104
        }
    },"2020": {
        "Jan": {
            "count": 39
        },"Feb": {
            "count": 128
        },"Mar": {
            "count": 0
        }
    }
}

每个year都是关键，而我拥有的每个month都是当年的一个属性，另一个属性是count.

我还没走很远：

use Maatwebsite\Excel\Concerns\Exportable;
use Maatwebsite\Excel\Concerns\FromCollection;
use Maatwebsite\Excel\Concerns\ShouldAutoSize;
use Maatwebsite\Excel\Concerns\Withheadings;

class MissingWeatherExport implements ShouldAutoSize,FromCollection,Withheadings
{
    use Exportable;

    protected $missingData;

    public function __construct($missingData)
    {
        $this->missingData = $missingData;
    }

    public function headings(): array
    {
        return $this->missingData->keys();
    }

    public function collection()
    {
        return $this->missingData;
    }

}

是否有任何指针可以在Laravel-Excel 3.1中完成此操作？

解决方法

我退后一步，考虑过以Laravel-Excel能够开箱即用的方式格式化数据。

我采用了扁平化数组的方法：

// Controller

// Get the years to use for columns. Add a space to account for month name in column 1
$yearColumns = $missingData->keys()->toArray();
array_unshift($yearColumns,"");

// See what months we returned for the first key of the collection to use as a template
$months = $missingData->first()->keys()->toArray();

// Each year has an index in this array,null if no data for that index
$monthRows = array();
foreach ($months as $month) {
    $monthConsolidated = $missingData->pluck($month)->flatten()->toArray();
    array_unshift($monthConsolidated,$month);
    array_push($monthRows,$monthConsolidated);
}

return Excel::download(new MissingWeatherExport($yearColumns,$monthRows),'test.xlsx');;

// MissingWeatherExport
use Maatwebsite\Excel\Concerns\Exportable;
use Maatwebsite\Excel\Concerns\FromArray;
use Maatwebsite\Excel\Concerns\ShouldAutoSize;
use Maatwebsite\Excel\Concerns\WithHeadings;

class MissingWeatherExport implements ShouldAutoSize,FromArray,WithHeadings
{
    use Exportable;

    protected $yearColumns;
    protected $monthRows;

    public function __construct($yearColumns,$monthRows)
    {
        $this->yearColumns = $yearColumns;
        $this->monthRows = $monthRows;
    }

    public function headings(): array
    {
        return $this->yearColumns;
    }

    public function array(): array
    {
        return $this->monthRows;
    }

}

test.xlsx的输出：