function do_del_channel($channel_id)
{
//判断频道是否已存在
$obj = new channel();
$obj->set_where('');
$obj->set_where("cha_id = {$channel_id}");
$channel = $obj->get_one();
if (count($channel)) {
$cha_code = $channel['cha_code'];
$obj->del();
} else {
return 0;
}
//删除前台导航（导航管理）
$obj = new varia();
$obj->set_where("var_name = 'nav_stage_" . $cha_code . "'");
$obj->del();
//删除后台导航（导航管理）
$obj->set_where('');
$obj->set_where("var_name = 'nav_admin_" . $cha_code . "'");
$obj->del();
//删除后台导航菜单
$obj = new menu();
$obj->set_where("men_type = '{$cha_code}'");
$obj->del();
$obj->set_where('');
$obj->set_where("men_type = 'admin_header'");
$obj->set_where("men_url = '" . $cha_code . "/mod-sheet/'");
$obj->del();
$obj->set_where('');
$obj->set_where("men_type = 'admin_" . $cha_code . "'");
$obj->set_where("men_url = '" . $cha_code . "/mod-sheet/'");
$obj->del();
$obj->set_where('');
$obj->set_where("men_type = 'admin_" . $cha_code . "'");
$obj->set_where("men_url = '" . $cha_code . "/mod-add/'");
$obj->del();
$obj->set_where('');
$obj->set_where("men_type = 'admin_" . $cha_code . "'");
$obj->set_where("men_url = '" . $cha_code . "/mod-cat_list/'");
$obj->del();
$obj->set_where('');
$obj->set_where("men_type = 'admin_" . $cha_code . "'");
$obj->set_where("men_url = '" . $cha_code . "/mod-att_list/'");
$obj->del();
//删除前台导航菜单
$obj = new menu();
$obj->set_where("men_type = 'header'");
$obj->set_where("men_url = '" . $cha_code . "/'");
$obj->del();
//删除分类
$obj = new cat_art();
$obj->set_where('');
$obj->set_where("cat_channel_id = {$channel_id}");
$obj->del();
//删除内容
$obj = new article();
$obj->set_where('');
$obj->set_where("art_channel_id = {$channel_id}");
$obj->del();
//删除属性
$obj = new att_art();
$obj->set_where('');
$obj->set_where("att_channel_id = {$channel_id}");
$obj->del();
//删除语言包
$path = 'languages/' . S_LANG . '/admin/' . $cha_code . '.txt';
if (file_exists($path)) {
unlink($path);
}
$path = 'languages/' . S_LANG . '/index/' . $cha_code . '.txt';
if (file_exists($path)) {
unlink($path);
}
//修改伪静态文件
$path = 'admin/module/basic/htaccess.txt';
if (file_exists($path)) {
$str = file_get_contents($path);
$rule = "\n" . 'RewriteRule ^' . $cha_code . '/(.*)$ index.php?/' . $cha_code . '/$1';
$str = str_replace($rule, '', $str);
file_put_contents($path, $str);
}
return 1;
}