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Add time range picker form

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refs #33
This commit is contained in:
Alexander A. Klimov 2017-09-05 13:02:31 +02:00
parent b554d00e69
commit 968e95754c
1 changed files with 260 additions and 0 deletions
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application/forms/TimeRangePickerForm.php Normal file
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<?php
namespace Icinga\Module\Graphite\Forms;
use DateInterval;
use DateTime;
use DateTimeZone;
use Icinga\Exception\NotImplementedError;
use Icinga\Util\TimezoneDetect;
use Icinga\Web\Form;
use Icinga\Web\Url;
class TimeRangePickerForm extends Form
{
/**
* @var string
*/
protected $dateTimeFormat = 'Y-m-d\TH:i';
/**
* The URL to redirect to
*
* @var Url
*/
protected $url;
/**
* Whether {@link url} has been changed
*
* @var bool
*/
protected $urlHasBeenChanged = false;
/**
* The time zone of all dates and times
*
* @var DateTimeZone
*/
protected $timeZone;
/**
* Right now
*
* @var DateTime
*/
protected $now;
public function init()
{
$this->setName('form_timerangepicker_graphite');
$this->setSubmitLabel($this->translate('Update'));
}
public function createElements(array $formData)
{
$this->addElements([
[
'date',
'start_date',
[
'label' => $this->translate('Start Date'),
'description' => $this->translate('Start date of the date/time range')
]
],
[
'time',
'start_time',
[
'label' => $this->translate('Start Time'),
'description' => $this->translate('Start time of the date/time range')
]
],
[
'date',
'end_date',
[
'label' => $this->translate('End Date'),
'description' => $this->translate('End date of the date/time range')
]
],
[
'time',
'end_time',
[
'label' => $this->translate('End Time'),
'description' => $this->translate('End time of the date/time range')
]
]
]);
$this->urlToForm('start');
$this->urlToForm('end');
}
public function onSuccess()
{
$this->formToUrl('start', '00:00');
$this->formToUrl('end', '23:59', 'PT59S');
if ($this->urlHasBeenChanged) {
$this->setRedirectUrl($this->getUrl());
} else {
return false;
}
}
/**
* Set this form's elements' default values based on {@link url}'s parameters
*
* @param string $part Either 'start' or 'end'
*/
protected function urlToForm($part)
{
$timestamp = $this->getUrl()->getParam("graph_$part", '');
if (preg_match('/^(?:0|-?[1-9]\d*)$/', $timestamp)) {
$timestamp = (int) $timestamp;
if ($timestamp > 0) {
list($date, $time) = explode(
'T',
DateTime::createFromFormat('U', $timestamp)
->setTimezone($this->getTimeZone())
->format($this->dateTimeFormat)
);
$this->getElement("{$part}_date")->setValue($date);
$this->getElement("{$part}_time")->setValue($time);
} else {
// TODO(ak): relative to now
throw new NotImplementedError('');
}
} else {
$this->getElement("{$part}_date")->setValue('');
$this->getElement("{$part}_time")->setValue('');
$this->getUrl()->remove("graph_$part");
$this->urlHasBeenChanged = true;
}
}
/**
* Change {@link url}'s parameters based on this form's elements' values
*
* @param string $part Either 'start' or 'end'
* @param string $defaultTime Default if no time given
* @param string $addInterval Add this interval to the result
*/
protected function formToUrl($part, $defaultTime, $addInterval = null)
{
$date = $this->getValue("{$part}_date");
$time = $this->getValue("{$part}_time");
if (! ($date === '' && $time === '')) {
$dateTime = DateTime::createFromFormat(
$this->dateTimeFormat,
($date === '' ? $this->getNow()->format('Y-m-d') : $date) . 'T' . ($time === '' ? $defaultTime : $time),
$this->getTimeZone()
);
if ($dateTime === false) {
$this->getElement("{$part}_date")->setValue('');
$this->getElement("{$part}_time")->setValue('');
$this->getUrl()->remove("graph_$part");
} else {
if ($addInterval !== null) {
$dateTime->add(new DateInterval($addInterval));
}
$this->getUrl()->setParam("graph_$part", $dateTime->format('U'));
}
$this->urlHasBeenChanged = true;
}
}
/**
* Get {@link url}
*
* @return Url
*/
public function getUrl()
{
if ($this->url === null) {
$this->url = Url::fromRequest();
}
return $this->url;
}
/**
* Set {@link url}
*
* @param Url $url
*
* @return $this
*/
public function setUrl(Url $url)
{
$this->url = $url;
$this->urlHasBeenChanged = false;
return $this;
}
/**
* Get {@link timeZone}
*
* @return DateTimeZone
*/
public function getTimeZone()
{
if ($this->timeZone === null) {
$timezoneDetect = new TimezoneDetect();
$this->timeZone = new DateTimeZone(
$timezoneDetect->success() ? $timezoneDetect->getTimezoneName() : date_default_timezone_get()
);
}
return $this->timeZone;
}
/**
* Set {@link timeZone}
*
* @param DateTimeZone $timeZone
*
* @return $this
*/
public function setTimeZone(DateTimeZone $timeZone)
{
$this->timeZone = $timeZone;
return $this;
}
/**
* Get {@link now}
*
* @return DateTime
*/
public function getNow()
{
if ($this->now === null) {
$this->now = (new DateTime('now'))->setTimezone($this->getTimeZone());
}
return $this->now;
}
/**
* Set {@link now}
*
* @param DateTime $now
*
* @return $this
*/
public function setNow(DateTime $now)
{
$this->now = $now;
return $this;
}
}