File "TrendDateExpression.php"
Full Path: /home/markqprx/iniasli.pro/Metrics/Traits/TrendDateExpression.php
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Charset: utf-8
<?php
namespace Common\Database\Metrics;
use Carbon\CarbonImmutable;
use DateTime;
use DateTimeZone;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Grammar;
use Illuminate\Database\Query\Expression;
class TrendDateExpression extends Expression
{
public function __construct(
protected Builder $query,
protected string $column,
protected string $unit,
protected string $timezone,
) {
}
public function getValue(Grammar $grammar): string
{
// dates in database are stored in UTC, and date_format will not return hour in many cases, so we need
// to convert date_format result to specified timezone in mysql because it can use the full timestamp
$offset = $this->offset();
if ($offset > 0) {
$interval = '+ INTERVAL ' . $offset . ' HOUR';
} elseif ($offset === 0) {
$interval = '';
} else {
$interval = '- INTERVAL ' . $offset * -1 . ' HOUR';
}
switch ($this->unit) {
case 'year':
return "date_format({$this->wrap(
$this->column,
)} {$interval}, '%Y')";
case 'month':
return "date_format({$this->wrap(
$this->column,
)} {$interval}, '%Y-%m')";
case 'week':
return "date_format({$this->wrap(
$this->column,
)} {$interval}, '%x-%v')";
case 'day':
return "date_format({$this->wrap(
$this->column,
)} {$interval}, '%Y-%m-%d')";
case 'hour':
return "date_format({$this->wrap(
$this->column,
)} {$interval}, '%Y-%m-%d %H:00')";
case 'minute':
return "date_format({$this->wrap(
$this->column,
)} {$interval}, '%Y-%m-%d %H:%i:00')";
}
}
protected function wrap(string $value): string
{
return $this->query
->getQuery()
->getGrammar()
->wrap($value);
}
protected function offset(): int
{
$timezoneOffset = function ($timezone) {
return (new DateTime(
CarbonImmutable::now()->format('Y-m-d H:i:s'),
new DateTimeZone($timezone),
))->getOffset() /
60 /
60;
};
$appOffset = $timezoneOffset(config('app.timezone'));
$userOffset = $timezoneOffset($this->timezone);
return $userOffset - $appOffset;
}
}