Developer
<?php
namespace Maatwebsite\Excel\Imports;
use Maatwebsite\Excel\Concerns\WithColumnLimit;
use Maatwebsite\Excel\Concerns\WithGroupedHeadingRow;
use Maatwebsite\Excel\Concerns\WithHeadingRow;
use Maatwebsite\Excel\Concerns\WithStartRow;
use Maatwebsite\Excel\Row;
use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
class HeadingRowExtractor
{
/**
* @const int
*/
const DEFAULT_HEADING_ROW = 1;
/**
* @param WithHeadingRow|mixed $importable
* @return int
*/
public static function headingRow($importable): int
{
return method_exists($importable, 'headingRow')
? $importable->headingRow()
: self::DEFAULT_HEADING_ROW;
}
/**
* @param WithHeadingRow|mixed $importable
* @return int
*/
public static function determineStartRow($importable): int
{
if ($importable instanceof WithStartRow) {
return $importable->startRow();
}
// The start row is the row after the heading row if we have one!
return $importable instanceof WithHeadingRow
? self::headingRow($importable) + 1
: self::DEFAULT_HEADING_ROW;
}
/**
* @param Worksheet $worksheet
* @param WithHeadingRow|mixed $importable
* @return array
*/
public static function extract(Worksheet $worksheet, $importable): array
{
if (!$importable instanceof WithHeadingRow) {
return [];
}
$headingRowNumber = self::headingRow($importable);
$rows = iterator_to_array($worksheet->getRowIterator($headingRowNumber, $headingRowNumber));
$headingRow = head($rows);
$endColumn = $importable instanceof WithColumnLimit ? $importable->endColumn() : null;
return HeadingRowFormatter::format((new Row($headingRow))->toArray(null, false, false, $endColumn));
}
/**
* @param array $headingRow
* @param WithGroupedHeadingRow|mixed $importable
* @return array
*/
public static function extractGrouping($headingRow, $importable)
{
$headerIsGrouped = array_fill(0, count($headingRow), false);
if (!$importable instanceof WithGroupedHeadingRow) {
return $headerIsGrouped;
}
array_walk($headerIsGrouped, function (&$value, $key) use ($headingRow) {
if (array_count_values($headingRow)[$headingRow[$key]] > 1) {
$value = true;
}
});
return $headerIsGrouped;
}
}
Developer
To ensure a smooth integration process and optimal performance, follow these best practices: