public function batch_relate()
{
$ids = $this->input->post('ids');
if (empty($ids) or !is_array($ids)) {
message('请选择要关联的项目！');
return;
}
// 检查被关联试题
$relate_ques_id = intval($this->input->post('relate_ques_id'));
$relate_ques_id && ($relate_ques = QuestionModel::get_question($relate_ques_id));
if (empty($relate_ques)) {
message('被关联试题不存在。');
return;
}
$be_tested = QuestionModel::question_has_test_action($relate_ques_id);
if ($be_tested) {
message('被关联试题已经被考生考过 或者 正在被考， 无法操作');
}
// 如果被关联试题无分组，则：创建分组，并把该试题加入关联
$group_id = $relate_ques['group_id'];
if (empty($group_id)) {
$this->db->insert('relate_group', array('group_name' => $relate_ques_id));
$group_id = $this->db->insert_id();
$this->db->update('question', array('group_id' => $group_id), array('ques_id' => $relate_ques_id));
}
$success = $fail = 0;
foreach ($ids as $id) {
$this->examine_permission($id);
$num = QuestionModel::relate($id, $group_id);
if ($num > 0) {
$success += $num;
} else {
$fail++;
}
}
$back_url = 'admin/relate_group/group/' . $group_id;
message('批量操作完成，成功关联：' . $success . ' 个，失败：' . $fail . ' 个。', $back_url);
}