function save($id = FALSE)
{
if ($_POST) {
$knowledge = new Knowledge($id);
$_POST['title'] = lang_encode($_POST['title']);
$_POST['intro'] = lang_encode($_POST['intro']);
$_POST['detail'] = lang_encode($_POST['detail']);
$_POST['start_date'] = Date2DB($_POST['start_date']);
$_POST['end_date'] = Date2DB($_POST['end_date']);
if (!$id) {
$_POST['user_id'] = $this->session->userdata('id');
}
if ($_FILES['image']['name']) {
if ($id) {
$knowledge->delete_file('uploads/knowledge/thumbnail', 'image');
}
$knowledge->image = $knowledge->upload($_FILES['image'], 'uploads/knowledge/thumbnail', 77, 64);
}
$knowledge->from_array($_POST);
$knowledge->save();
fix_file($_FILES['file']);
foreach ($_POST['doc'] as $key => $doc) {
if (@$_FILES['file'][$key]['name'] || @$_POST['doc_id'][$key]) {
$knowledge_file = new Knowledge_file(@$_POST['doc_id'][$key]);
if ($_FILES['file'][$key]['name']) {
if (@$_POST['doc_id'][$key]) {
$knowledge_file->delete_file('uploads/knowledge', 'file');
}
$knowledge_file->file = $knowledge_file->upload($_FILES['file'][$key], 'uploads/knowledge');
}
$knowledge_file->name = $doc;
$knowledge_file->knowledge_id = $knowledge->id;
$knowledge_file->save();
}
}
set_notify('success', lang('save_data_complete'));
redirect($_POST['referer']);
}
}