/** shift_time - shift given timespan left/right
* @param array &$span - given timespan (start/end time as time-since-epoch and human readable)
* @param string $direction - "-" for shifting left, "+" for shifting right
* @param int $shift_size - amount of shifting
* @param array $_SESSION - set to CUSTOM
* @param array $_POST - set to CUSTOM
*/
function shift_time(&$span, $direction, $shift_size) {
require_once(CACTI_BASE_PATH . "/include/graph/graph_constants.php");
# move left/right according to $direction
# amount to be moved is derived from $shift_size
# base dates are taken from array $span
# is this a month shift AND current timespane is on month boundaries?
if ( month_shift($shift_size) && check_month_boundaries($span) ) {
# shift left boundary
$span["begin_now"] = strtotime($direction . $shift_size . " " . $span["current_value_date1"]);
# shifting right boundary is somewhat complicated
$span["end_now"] = shift_right_boundary($span, $direction, $shift_size);
} else {
# 'normal' time shifting: use strtotime magic
$span["begin_now"] = strtotime($direction . $shift_size . " " . $span["current_value_date1"]);
$span["end_now"] = strtotime($direction . $shift_size . " " . $span["current_value_date2"]);
}
# convert to human readable format
$span["current_value_date1"] = date("Y-m-d H:i", $span["begin_now"]);
$span["current_value_date2"] = date("Y-m-d H:i", $span["end_now"]);
# now custom time settings in effect
$_SESSION["sess_current_timespan"] = GT_CUSTOM;
$_SESSION["custom"] = 1;
$_POST["predefined_timespan"] = GT_CUSTOM;
}
function shift_time(&$span, $direction, $shift_size)
{
# move left/right according to $direction
# amount to be moved is derived from $shift_size
# base dates are taken from array $span
# is this a month shift AND current timespane is on month boundaries?
if (month_shift($shift_size) && check_month_boundaries($span)) {
# shift left boundary
$span['begin_now'] = strtotime($direction . $shift_size . ' ' . $span['current_value_date1']);
# shifting right boundary is somewhat complicated
$span['end_now'] = shift_right_boundary($span, $direction, $shift_size);
} else {
# 'normal' time shifting: use strtotime magic
$span['begin_now'] = strtotime($direction . $shift_size . ' ' . $span['current_value_date1']);
$span['end_now'] = strtotime($direction . $shift_size . ' ' . $span['current_value_date2']);
}
# convert to human readable format
$span['current_value_date1'] = date('Y-m-d H:i', $span['begin_now']);
$span['current_value_date2'] = date('Y-m-d H:i', $span['end_now']);
# now custom time settings in effect
$_SESSION['sess_current_timespan'] = GT_CUSTOM;
$_SESSION['custom'] = 1;
$_POST['predefined_timespan'] = GT_CUSTOM;
}
