Hi Nick,

Are there plans to include a Rails-style migrations rake task-like option for bringing all migrations/installations up-to-date at the latest migration #? It is not planned yet. You're welcomed to submit a ticket and a patch with this feature.

Personally I use the attached script in one large project with 25 installers.

I haven't added this to the trunk because I think it will be better to integrate the update into the migrate command.

There is also one important issue that I found while using this method. If you run a batch of installers alphabetically you might find that on account_installer version 5 you have a dependency on user_installer version 1.

Having a unified installer avoids this problem. For example, a custom installer named app_installer which will call specific versions of individual installers like:

<?php

class AppInstaller extends AkInstaller
{
    function up_1()
    {
        $this->_installOrUninstallVersions(array(
            'user' => 1,
            'account' =>5
        ), 'up');
    }

    function down_1()
    {
        $this->_installOrUninstallVersions(array(
            'user' => 0,
            'account' =>0
        ), 'uninstall');
    }

    function _installOrUninstallVersions($installers, $direction = 'up')
    {
        foreach ($installers as $name => $version) {
            $command = AK_SCRIPT_DIR.DS.'migrate '.$name.' '.$action.' '.$version;
            `$command`;
        }
    }
}


?>

can be a perfect solution for application wide installers, while single installers remain isolated.

Granular control such as Akelos has would provide the availability to roll back some models/data and not others, I assume that's the idea...

That's right

Should I look into contributing such a thing? Are others interested?

I am :)

As we don't have a rake command yet could use

./script/migrate all 15

as you suggested, or

./script/migrate app 15

and require an app_installer.php

If you implement something interesting, please open a ticket, take ownership and contribute your solution as a patch so this can be integrated into AkInstaller.