Prevent users from deleting a single page?

[ryanscherler]

I just first want to say I LOVE Statamic! Thanks so much for this amazing CMS.

One quick question - coming from Craft CMS - there is a concept of a ** 'Single' section type. This allows for the creation of pages that cannot be deleted (e.g. Home page). I am wondering how to do this in Statamic. We have some custom routes that feed an app and pull content from a corresponding page at the moment - but this is fragile, in the event the page is deleted (or slug changed etc.). Is it possible to create a page and set its yaml config to disallow deletion?

Or even just be able to create a 'single' page collection with no delete / create etc?

** Craft reference: https://craftcms.com/docs/4.x/entries.html#singles

[jasonvarga]

You could do this with a custom entry policy.

// AppServiceProvider.php

public function boot()
{
    $this->app->bind(\Statamic\Policies\EntryPolicy::class, \App\CustomEntryPolicy::class);
}

// app/CustomEntryPolicy.php

<?php

namespace App;

use Statamic\Policies\EntryPolicy;

class CustomEntryPolicy extends EntryPolicy
{
    public function delete($user, $entry)
    {
        $undeletable = [
            'id-of-home-entry',
            // other ids...
        ];

        if (in_array($entry->id(), $undeletable)) {
            return false;
        }

        return parent::delete($user, $entry);
    }
}

Although super admins will bypass this permission and they'll still be allowed to delete them.

[ryanscherler]

Oh that's slick! I'll add that. One issue is that it depends on the page ID's (slug?) so if they change then this fails correct?

[jasonvarga]

The ID will never change, it's inside the file.

[ryanscherler]

ohh gotcha - the actual ID not slug (I was thrown by the home ID which I see is special)

[jasonvarga]

Ah, edited for clarity.