public static function createTextBasedBurndownChart($bible, $year, $month)
{
// Number of days in the month for on the X-axis.
$time = mktime(0, 0, 0, $month, 15, $year);
$days_in_month = date("t", $time);
// Assemble history of this sprint.
$database_sprint = Database_Sprint::getInstance();
$history = $database_sprint->getHistory($bible, $year, $month);
$data = array();
for ($day = 1; $day <= $days_in_month; $day++) {
if (Filter_Datetime::isBusinessDay($year, $month, $day)) {
$data[$day] = "";
foreach ($history as $item) {
if ($day == $item['day']) {
$tasks = $item['tasks'];
$complete = $item['complete'];
$tasks = $tasks * (100 - $complete) / 100;
$tasks = intval($tasks);
$data[$day] = $tasks;
}
}
}
}
unset($item);
$lines = array();
$lines[] = '<table style="text-align:center;">';
$lines[] = '<tr style="vertical-align: bottom;">';
foreach ($data as $day => $tasks) {
$text = str_repeat("▓<br>", intval($tasks));
$lines[] = "<td>{$text}</td>";
}
$lines[] = "</tr>";
// Write number of days along the x-axis.
$lines[] = '<tr>';
foreach ($data as $day => $tasks) {
$lines[] = "<td style=\"width:1em\">{$day}</td>";
}
$lines[] = "</tr>";
// Write "days" below the x-axis.
$lines[] = '<tr>';
$columncount = count($data);
$text = Locale_Translate::_("days");
$lines[] = "<td colspan=\"{$columncount}\">{$text}</td>";
$lines[] = "</tr>";
$lines[] = "</table>";
$chart = implode("\n", $lines);
return $chart;
}
public function testIsBusinessDay()
{
$this->assertFalse(Filter_Datetime::isBusinessDay(2013, 9, 1));
$this->assertTrue(Filter_Datetime::isBusinessDay(2013, 9, 2));
$this->assertTrue(Filter_Datetime::isBusinessDay(2013, 9, 3));
$this->assertTrue(Filter_Datetime::isBusinessDay(2013, 9, 4));
$this->assertTrue(Filter_Datetime::isBusinessDay(2013, 9, 5));
$this->assertTrue(Filter_Datetime::isBusinessDay(2013, 9, 6));
$this->assertFalse(Filter_Datetime::isBusinessDay(2013, 9, 7));
$this->assertFalse(Filter_Datetime::isBusinessDay(2013, 9, 8));
$this->assertTrue(Filter_Datetime::isBusinessDay(2013, 9, 30));
}
