function show_exchange_filter($filter_t)
{
$sort_url = determine_sort_url();
$menu = $_GET['m'];
print '<form method="POST" action="index.php?m=' . $menu . $sort_url . '&setfilter">';
print '<table><tbody><tr><th>Select student travel:</th></tr><tr><td>';
//if (strlen($_POST['travel_selection']) > 0) $ft = $_POST['travel_selection']; else $ft = $filter_t;
show_select('travel_selection', db_travels_list(), $filter_t, ' onchange="this.form.submit()"');
print '</td></tr></tbody></table></form><br />';
}
function show_travel_filters($filter_a, $filter_d1, $filter_d2)
{
$sort_url = determine_sort_url();
print '<form method="POST" action="index.php?m=travels&' . $sort_url . '&setfilter">';
print '<table id="tblTravels"><tbody><tr><th colspan="3">Show only travels:</th></tr><tr><td>';
print '<input type="checkbox" name="filterbyagr"';
print (strlen($filter_a) > 0 ? ' checked="checked"' : '') . '" /> for agreement: </td><td colspan="2">';
if (strlen($_POST['agreement_selection']) > 0) {
$fa = $_POST['agreement_selection'];
} else {
$fa = $filter_a;
}
show_select('agreement_selection', db_retrieve_agreements_data(TRUE), $fa);
print '</td></tr><tr><td><input type="checkbox" name="filterbydates"' . (strlen($filter_d1) > 0 ? 'checked="checked"' : '') . '" />';
if (strlen($_POST['filter_from']) > 0) {
$fromval = $_POST['filter_from'];
} else {
if (strlen($filter_d1) > 0) {
$fromval = $filter_d1;
} else {
$fromval = "2000-12-24";
}
}
print 'overlapping period </td><td>from (Y-M-D): <input type="date" name="filter_from" value="' . $fromval . '" />';
if (strlen($_POST['filter_to']) > 0) {
$toval = $_POST['filter_to'];
} else {
if (strlen($filter_d2) > 0) {
$toval = $filter_d2;
} else {
$toval = "2010-12-24";
}
}
print ' to (Y-M-D): <input type="date" name="filter_to" value="' . $toval . '" /></td><td>';
print '<input type="submit" name="filter" value="apply filter" /></td></tr></tbody></table></form><br />';
}
function show_year_filter()
{
global $userrole;
if ($userrole === "admin") {
global $first_year, $selected_year;
$menuitem = $_GET['m'];
$sort_url = determine_sort_url();
print '<form action="index.php?m=' . $menuitem . $sort_url . '" method="POST"><select name="select_year" onchange="this.form.submit()">';
print "\n" . '<option value="ALL">ALL</option>' . "\n";
$current_year = date('Y');
for ($y = $first_year; $y <= $current_year; $y++) {
$yr = $y . '/' . ($y + 1);
print '<option value="' . $yr . '"';
if ($y == $selected_year) {
print ' selected';
}
print " >{$yr}</option>\n";
}
print '</select></form><br />' . "\n";
} else {
return;
}
}
