What's wrong with this route?

Question

protected function _initRoutes()
{
    $this->router = $this->frontController->getRouter();
    $route = new Zend_Controller_Router_Route(
        ':username',
        array(
            'module'     => 'default',
            'controller' => 'view',
            'action'     => 'profile',
            'username'   => ':username'
        )
    );
    $this->router->addRoute('profile', $route);
}

What it's supposed to do is match this:

http://www.mydomain.com/something

To:

http://www.mydomain.com/view/profile/username/something

Which works. The trouble is when I go to:

http://www.mydomain.com

I get a a long database error which is there basically because it is matched to (and it shouldn't be):

http://www.mydomain.com/view/profile

But without a username, which is required.

The route is defined in my bootstrap file. What should I do to make it work right?

EDIT:

It seems the problem is with the url helper in my views. What is wrong with these URLs?

<?php

echo $this->url(array('module' => 'default',
                      'controller' => 'view',
                      'action' => 'profile',
                      'id' => $this->escape($m->id)),
                null,
                true);

                ?>

Or:

<?php

echo $this->url(array('module' => 'default',
                      'controller' => 'my-account',
                      'action' => 'write-message'),
                null,
                true);

            ?>

Answer 1

The line

'username'   => ':username'

This means you're setting the paramater username default value to the string ':username', if you leave it out of the route def, if there is no username it will just ignore this route and move on.

protected function _initRoutes()
{
    $this->router = $this->frontController->getRouter();
    $route = new Zend_Controller_Router_Route(
        ':username',
        array(
            'module'     => 'default',
            'controller' => 'view',
            'action'     => 'profile',
        )
    );
    $this->router->addRoute('profile', $route);
}