set Construction Mode (in router)

i would do it using beforeExecuteRoute https://docs.phalcon.io/en/latest/reference/dispatching.html#dispatch-loop-events

maye something like

if (true === is_file( APP_DIR . "/site.lock") ) {
    //check if user is admin, if so 
    return true;

    //if user is not admin
    return false;
}

this is very good example but I don't need to check users.

i would do it using beforeExecuteRoute https://docs.phalcon.io/en/latest/reference/dispatching.html#dispatch-loop-events

maye something like

if (true === is_file( APP_DIR . "/site.lock") ) {
  //check if user is admin, if so 
  return true;

  //if user is not admin
  return false;
}

well you do what you dotta do just redirect to 404 or whatever when needed :-)

sorry! my English isn't very well.

I want somthing like this in my router: (this example wont work and I'm not know why)

<?php 
$di['router'] = function() {

    $router = new \Phalcon\Mvc\Router(true);
    $router->setDefaultModule('frontend');

    $router->add('/admin', array(
        'module' => 'backend',
        'controller' => 'index',
        'action' => 'index'
        ));

    $router->add('/admin/', array(
        'module' => 'backend',
        'controller' => 'index',
        'action' => 'index'
        ));

    $router->add('/admin/:controller/:action/:params', array(
        'module' => 'backend',
        'controller' => 1,
        'action' => 2,
        'params' => 3
        ));

    $router->add('/admin/:controller', array(
        'module' => 'backend',
        'controller' => 1,
        'action' => 'index'
        ));

    $router->add('/', array(
        'module' => 'frontend',
        'controller' => 'index',
        'action' => 'construction'
        ));

    $router->add('/:controller/:action:(new|[0-9]+)', array(
        'module' => 'frontend',
        'controller' => 'index',
        'action' => 'construction',
        'id' => 3
        ));

    $router->add('/admin/:controller/:action:(new|[a-zA-Z\d_]+)', array(
        'module' => 'backend',
        'controller' => 1,
        'action' => 2,
        'qid' => 3
        ));

    return $router;
};
?>

The most convinient way to 'bring your site down' is using either web server layer or to define flag in your config component (Phalcon level), so you would have something similar to this:

config.ini

[database]
adapter  = MySQL
host     = localhost
username = scott
password = cheetah123
dbname   = mydb

[phalcon]
controllersDir = ../app/controllers/
modelsDir      = ../app/models/
viewsDir       = ../app/views/

[models]
metadata.adapter  = Memory

[other]
debug = 0
maintenance = 1

The last part named other has flag maintenance set to true, and then all you need is to check in your Front Page Controller for it's value.

For instance, I'm using this approach for debug mode.

[_options]
**Global debug & audit settings **
debug = 0x0a
audit = 0x0c

 // Read the configuration file
    $config = new \Phalcon\Config\Adapter\Ini(APP_PATH . '/app/config/config.ini');
    $debug = hexdec($config->_options->debug);
//If the debug mode is on, display all errors, if not, do not display any errors
    $debug ? error_reporting(~0) : error_reporting(0);