File "ValueMetric.php"
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<?php
namespace Common\Database\Metrics;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Query\Expression;
class ValueMetric extends BaseMetric
{
public function __construct(
Model|Builder|string $model,
MetricDateRange $dateRange,
string|Expression|null $column = null,
?string $dateColumn = null,
) {
parent::__construct($model, $dateRange, $column, $dateColumn);
}
protected function aggregate(string $function): array
{
$column =
$this->column ?: $this->query->getModel()->getQualifiedKeyName();
$previousValue = round(
(clone $this->query)
->when($this->dateRange, function ($query) {
$previous = $this->dateRange->getPreviousPeriod();
$query->whereBetween($this->dateColumn, [
$previous->start,
$previous->end,
]);
})
->{$function}($column) ?? 0,
$this->roundingPrecision,
$this->roundingMode,
);
$currentValue = round(
(clone $this->query)
->when(
$this->dateRange,
fn($query) => $query->whereBetween($this->dateColumn, [
$this->dateRange->start,
$this->dateRange->end,
]),
)
->{$function}($column) ?? 0,
$this->roundingPrecision,
$this->roundingMode,
);
if (!$currentValue && !$previousValue) {
$percentageChange = 0; // no change
} elseif (!$previousValue) {
$percentageChange = 100; // 100% increase
} else {
$percentageChange =
(($currentValue - $previousValue) / $previousValue) * 100;
}
return [
'previousValue' => $previousValue,
'currentValue' => $currentValue,
'percentageChange' => min(300, round($percentageChange, 2)),
];
}
}