Add short hour sanitizer

Author: Vrtak-CZ

src/Nella/Forms/DateTime/DateTimeInput.php

@@ -53,6 +53,9 @@ class DateTimeInput extends \Nette\Forms\Controls\BaseControl
 	/** @var mixed[]|array */
 	private $timeAttributes = array();
 
+	/** @var bool */
+	private $sanitizeShortHour = TRUE;
+
 	/**
 	 * @param string
 	 * @param string
@@ -122,6 +125,12 @@ public function loadHttpData()
 	{
 		$this->date = $this->getHttpData(Form::DATA_LINE, '[' . static::NAME_DATE . ']');
 		$this->time = $this->getHttpData(Form::DATA_LINE, '[' . static::NAME_TIME . ']');
+
+		if ($this->sanitizeShortHour && \Nette\Utils\Strings::startsWith(\Nette\Utils\Strings::lower($this->timeFormat), 'g')) {
+			if (\Nette\Utils\Strings::startsWith($this->time, '00')) {
+				$this->time = \Nette\Utils\Strings::substring($this->time, 1);
+			}
+		}
 	}
 
 	/**
@@ -226,6 +235,11 @@ public function setAttribute($name, $value = TRUE)
 		return $this;
 	}
 
+	public function disableShortHourSanitizer()
+	{
+		$this->sanitizeShortHour = false;
+	}
+
 	public static function register()
 	{
 		if (static::$registered) {

tests/Nella/Forms/DateTime/DateTimeInputTest.phpt

@@ -332,6 +332,41 @@ class DateTimeInputTest extends \Tester\TestCase
 		Assert::false($control->hasErrors());
 	}
 
+	public function testShortHourSanitizer()
+	{
+		$control = $this->createControl(array(
+			'datetime' => array(
+				'date' => '1978-01-23',
+				'time' => '00:00',
+			),
+		));
+
+		$control->addRule([$control, 'validateDateTime'], 'test');
+
+		$control->validate();
+
+		Assert::false($control->hasErrors());
+	}
+
+	public function testShortHourSanitizerDisabled()
+	{
+		$control = $this->createControl(array(
+			'datetime' => array(
+				'date' => '1978-01-23',
+				'time' => '00:00',
+			),
+		));
+
+		$control->disableShortHourSanitizer();
+		$control->loadHttpData(); // this must be called
+
+		$control->addRule([$control, 'validateDateTime'], 'test');
+
+		$control->validate();
+
+		Assert::true($control->hasErrors());
+	}
+
 	/**
 	 * @throws \Nette\InvalidStateException
 	 */