function find_errors($values = array())
{
if (empty($values) && !empty($this->disco_form)) {
$values = $this->disco_form->get_values();
}
if (empty($values)) {
$values = $this->get_event_values();
}
if (empty($values)) {
trigger_error('Programmer error: no event values available for reasonEvent::find_errors()');
}
static $required_fields = array('name', 'datetime', 'recurrence', 'show_hide');
$errors = array();
foreach ($required_fields as $field) {
if (empty($values[$field])) {
$errors[$field][] = 'The ' . $field . ' field is required.';
}
}
if (empty($errors)) {
if ($values['recurrence'] != 'none') {
if (empty($values['frequency'])) {
static $repeat_vals = array('daily' => 'day', 'weekly' => 'week', 'monthly' => 'month', 'yearly' => 'year');
$errors['frequency'][] = 'How often should this event repeat? If it repeats every ' . $repeat_vals[$values['recurrence']] . ', enter a 1.';
}
if (empty($values['term_only'])) {
$errors['term_only'][] = 'Please indicate whether this event should occur only while classes are in session.';
}
}
$d = parse_mysql_date($values['datetime']);
if ($values['recurrence'] == 'weekly') {
// there must be at least 1 day of the week the event recurs on
static $days = array('sunday', 'monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday');
foreach ($days as $day) {
if (!empty($values[$day])) {
$day_set = true;
break;
}
}
if (empty($day_set)) {
$errors['sunday'][] = 'Please enter which day(s) of the week this event will occur.';
}
// the date of the event must be on one of those days of the week
$day_o_week = carl_date('l', $d['timestamp']);
if (empty($values[strtolower($day_o_week)])) {
$errors['sunday'][] = 'This event starts on a ' . $day_o_week . ', which is not one of the repeating days of week provided.';
}
} elseif ($values['recurrence'] == 'monthly') {
// don't allow repetition on days that don't occur in every month
if ($d['day'] > 28) {
$errors['datetime'][] = 'Dates after the 28th do not occur in all months, so they are not available for monthly repeats.';
}
} elseif ($values['recurrence'] == 'yearly') {
if ($d['month'] == 2 and $d['day'] == 29) {
$errors['datetime'][] = 'February 29th only occurs on leap-years, so it is not an acceptable date for yearly repeating events.';
}
}
}
if (!empty($this->disco_form)) {
foreach ($errors as $field => $errs) {
foreach ($errs as $err_txt) {
$this->disco_form->set_error($field, $err_txt);
}
}
}
return $errors;
}
function set_values($values)
{
$this->dates = array();
if (!empty($values['frequency'])) {
$this->frequency = $values['frequency'];
} else {
$this->frequency = 1;
}
if (!empty($values['recurrence'])) {
$this->recurrence = $values['recurrence'];
} else {
$this->recurrence = 'none';
}
if (!empty($values['monthly_repeat'])) {
$this->monthly_repeat = $values['monthly_repeat'];
} else {
$this->monthly_repeat = 'numeric';
}
if (!empty($values['datetime'])) {
$this->datetime = $values['datetime'];
$s = parse_mysql_date($this->datetime);
$this->ystart = $s['year'];
$this->mstart = $s['month'];
$this->dstart = $s['day'];
$this->ustart = $s['timestamp'];
} else {
trigger_error('A datetime value must be given in reasonEventRepeater::set_values()');
return false;
}
if (!empty($values['end_date']) && $values['end_date'] != '0000-00-00 00:00:00') {
$end_date = $values['end_date'];
} else {
$end_year = max(carl_date('Y'), $this->ystart) + $this->years_out;
$end_date = $end_year . '-' . $this->mstart . '-' . $this->dstart;
}
$e = parse_mysql_date($end_date);
if (!empty($e)) {
$this->end_date = $end_date;
$this->yend = $e['year'];
$this->mend = $e['month'];
$this->dend = $e['day'];
$this->uend = $e['timestamp'];
} else {
trigger_error('Problem determining end date');
return false;
}
if (!empty($values['month_day_of_week']) && !empty($values['week_of_month'])) {
$this->month_day_of_week = $values['month_day_of_week'];
$this->week_of_month = $values['week_of_month'];
} elseif ($this->recurrence == 'monthly' and $this->monthly_repeat == 'semantic') {
$this->month_day_of_week = carl_date('l', $this->ustart);
$this->week_of_month = floor($this->dstart / 7) + 1;
} else {
$this->month_day_of_week = '';
$this->week_of_month = '';
}
if (!empty($values['month_day_of_week']) && $values['month_day_of_week'] != $this->month_day_of_week) {
trigger_error('Month day of week mismatch');
}
if (!empty($values['week_of_month']) && $values['week_of_month'] != $this->week_of_month) {
trigger_error('Week of month mismatch');
}
$this->days_of_week = array();
if (!empty($values['sunday'])) {
$this->days_of_week[] = 'Sunday';
}
if (!empty($values['monday'])) {
$this->days_of_week[] = 'Monday';
}
if (!empty($values['tuesday'])) {
$this->days_of_week[] = 'Tuesday';
}
if (!empty($values['wednesday'])) {
$this->days_of_week[] = 'Wednesday';
}
if (!empty($values['thursday'])) {
$this->days_of_week[] = 'Thursday';
}
if (!empty($values['friday'])) {
$this->days_of_week[] = 'Friday';
}
if (!empty($values['saturday'])) {
$this->days_of_week[] = 'Saturday';
}
}
