public function delete_batch()
{
if (!$this->check_power('subject_delete')) {
return;
}
$ids = (array) $this->input->post('ids');
if ($ids) {
$check_table = array('question', 'evaluate_group_type', 'evaluate_knowledge', 'evaluate_method_tactic', 'evaluate_rule', 'exam', 'exam_place_subject', 'exam_rule', 'exam_rule_qtype_limit', 'exam_subject_paper', 'exam_test_paper', 'group_type', 'knowledge', 'role', 'subject_category_subject', 'summary_paper_question');
foreach ($check_table as $table) {
if ($this->db->select("subject_id")->where_in('subject_id', $ids)->get($table)->row_array()) {
message('学科存在其他关联记录，不可删除！', 'admin/subject/index/');
}
}
foreach ($ids as $id) {
if ($this->db->select("subject_id")->like('subject_id_str', ",{$id},")->get('question')->row_array()) {
message('学科存在其他关联记录，不可删除！', 'admin/subject/index/');
}
}
$this->db->where_in('subject_id', $ids)->delete('subject');
SubjectModel::update_cache();
//echo $this->db->last_query();
admin_log('delete', 'subject', implode(',', $ids));
message('学科删除成功！', 'admin/subject/index');
} else {
message('请选择要删除的学科');
}
}
