function qa_set_up_category_field(&$qa_content, &$field, $fieldname, $navcategories, $categoryid, $allownone, $allownosub, $maxdepth = null, $excludecategoryid = null)
{
$pathcategories = qa_category_path($navcategories, $categoryid);
$startpath = '';
foreach ($pathcategories as $category) {
$startpath .= '/' . $category['categoryid'];
}
if (isset($maxdepth)) {
$maxdepth = min(QA_CATEGORY_DEPTH, $maxdepth);
} else {
$maxdepth = QA_CATEGORY_DEPTH;
}
$qa_content['script_rel'][] = 'qa-content/qa-ask.js?' . QA_VERSION;
$qa_content['script_onloads'][] = sprintf('qa_category_select(%s, %s);', qa_js($fieldname), qa_js($startpath));
$qa_content['script_var']['qa_cat_exclude'] = $excludecategoryid;
$qa_content['script_var']['qa_cat_allownone'] = (int) $allownone;
$qa_content['script_var']['qa_cat_allownosub'] = (int) $allownosub;
$qa_content['script_var']['qa_cat_maxdepth'] = $maxdepth;
$field['type'] = 'select';
$field['tags'] = sprintf('name="%s_0" id="%s_0" onchange="qa_category_select(%s);"', $fieldname, $fieldname, qa_js($fieldname));
$field['options'] = array();
// create the menu that will be shown if Javascript is disabled
if ($allownone) {
$field['options'][''] = qa_lang_html('main/no_category');
}
// this is also copied to first menu created by Javascript
$keycategoryids = array();
if ($allownosub) {
$category = @$navcategories[$categoryid];
$upcategory = @$navcategories[$category['parentid']];
// first get supercategories
while (isset($upcategory)) {
$keycategoryids[$upcategory['categoryid']] = true;
$upcategory = @$navcategories[$upcategory['parentid']];
}
$keycategoryids = array_reverse($keycategoryids, true);
$depth = count($keycategoryids);
// number of levels above
if (isset($category)) {
$depth++;
// to count category itself
foreach ($navcategories as $navcategory) {
// now get siblings and self
if (!strcmp($navcategory['parentid'], $category['parentid'])) {
$keycategoryids[$navcategory['categoryid']] = true;
}
}
}
if ($depth < $maxdepth) {
foreach ($navcategories as $navcategory) {
// now get children, if not too deep
if (!strcmp($navcategory['parentid'], $categoryid)) {
$keycategoryids[$navcategory['categoryid']] = true;
}
}
}
} else {
$haschildren = false;
foreach ($navcategories as $navcategory) {
// check if it has any children
if (!strcmp($navcategory['parentid'], $categoryid)) {
$haschildren = true;
break;
}
}
if (!$haschildren) {
$keycategoryids[$categoryid] = true;
}
// show this category if it has no children
}
foreach ($keycategoryids as $keycategoryid => $dummy) {
if (strcmp($keycategoryid, $excludecategoryid)) {
$field['options'][$keycategoryid] = qa_category_path_html($navcategories, $keycategoryid);
}
}
$field['value'] = @$field['options'][$categoryid];
$field['note'] = '<div id="' . $fieldname . '_note">' . '<noscript style="color:red;">' . qa_lang_html('question/category_js_note') . '</noscript>' . '</div>';
}
$nosubcount = qa_db_count_categoryid_qs($editcategory['categoryid']);
if ($nosubcount) {
$qa_content['form']['fields']['questions']['error'] = strtr(qa_lang_html('admin/category_no_sub_error'), array('^q' => number_format($nosubcount), '^1' => '<a href="' . qa_path_html(qa_request(), array('edit' => $editcategory['categoryid'], 'missing' => 1)) . '">', '^2' => '</a>'));
}
}
qa_set_display_rules($qa_content, array('position_display' => '!dodelete', 'slug_display' => '!dodelete', 'content_display' => '!dodelete', 'parent_display' => '!dodelete', 'children_display' => '!dodelete', 'reassign_display' => 'dodelete', 'reassign_shown' => 'dodelete', 'reassign_hidden' => '!dodelete'));
} else {
// new category
unset($qa_content['form']['fields']['delete']);
unset($qa_content['form']['fields']['reassign']);
unset($qa_content['form']['fields']['slug']);
unset($qa_content['form']['fields']['questions']);
$qa_content['focusid'] = 'name';
}
if (!$setparent) {
$pathhtml = qa_category_path_html($categories, @$editcategory['parentid']);
if (count($categories)) {
$qa_content['form']['fields']['parent'] = array('id' => 'parent_display', 'label' => qa_lang_html('admin/category_parent'), 'type' => 'static', 'value' => strlen($pathhtml) ? $pathhtml : qa_lang_html('admin/category_top_level'));
$qa_content['form']['fields']['parent']['value'] = '<a href="' . qa_path_html(qa_request(), array('edit' => @$editcategory['parentid'])) . '">' . $qa_content['form']['fields']['parent']['value'] . '</a>';
if (isset($editcategory['categoryid'])) {
$qa_content['form']['fields']['parent']['value'] .= ' - ' . '<a href="' . qa_path_html(qa_request(), array('edit' => $editcategory['categoryid'], 'setparent' => 1)) . '" style="white-space: nowrap;">' . qa_lang_html('admin/category_move_parent') . '</a>';
}
}
$positionoptions = array();
$previous = null;
$passedself = false;
foreach ($categories as $key => $category) {
if (!strcmp($category['parentid'], @$editcategory['parentid'])) {
if (isset($previous)) {
$positionhtml = qa_lang_html_sub('admin/after_x', qa_html($passedself ? $category['title'] : $previous['title']));
} else {
