DatedUpdateHolder::ExtractMonths()

Complexity

Conditions	9
Paths	52

Size

Total Lines	62
Code Lines	38

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

<?php
	public static function ExtractMonths(DataList $updates, $link = null, $currentYear = null, $currentMonthNumber = null) {
		// Set the link to current URL in the same way the HTTP::setGetVar does it.
		if (!isset($link)) {
			$link = Director::makeRelative($_SERVER['REQUEST_URI']);
		}

		$dates = $updates->dataQuery()
			->groupby('YEAR("Date")')
			->groupby('MONTH("Date")')
			->sort('Date', 'DESC')
			->query()
			->setSelect(array(
				'Year' => 'YEAR("Date")',
				'Month' => 'MONTH("Date")',
			))
			->addWhere('"Date" IS NOT NULL')
			->execute();

		$years = array();
		foreach ($dates as $date) {
			$monthNumber = $date['Month'];
			$year = $date['Year'];
			$dateObj = new Datetime(implode('-', array($year, $monthNumber, 1)));
			$monthName = $dateObj->Format('M');

			// Set up the relevant year array, if not yet available.
			if (!isset($years[$year])) {
				$years[$year] = array('YearName'=>$year, 'Months'=>array());
			}

			// Check if the currently processed month is the one that is selected via GET params.
			$active = false;
			if (isset($year) && isset($monthNumber)) {
				$active = (((int)$currentYear)==$year && ((int)$currentMonthNumber)==$monthNumber);
			}

			// Build the link - keep the tag and date filter, but reset the pagination.
			if ($active) {
				// Allow clicking to deselect the month.
				$link = HTTP::setGetVar('month', null, $link, '&');
				$link = HTTP::setGetVar('year', null, $link, '&');
			} else {
				$link = HTTP::setGetVar('month', $monthNumber, $link, '&');
				$link = HTTP::setGetVar('year', $year, $link, '&');
			}
			$link = HTTP::setGetVar('start', null, $link, '&');

			$years[$year]['Months'][$monthNumber] = array(
				'MonthName'=>$monthName,
				'MonthNumber'=>$monthNumber,
				'MonthLink'=>$link,
				'Active'=>$active
			);
		}

		// ArrayList will not recursively walk through the supplied array, so manually build nested ArrayLists.
		foreach ($years as &$year) {
			$year['Months'] = new ArrayList($year['Months']);
		}

		// Reverse the list so the most recent years appear first.
		return new ArrayList($years);
	}