DataObject + TranslatableDataObject + ModelAdmin - internationalization

Question

Setup: SS 3.1.13, Translatable 2.0.8 and TranslatableDataObject dev-master.
I have two DataObject classes: "Facility" ($has_one) and "FacilityType" ($has_many) which I chose to be managed in ModelAdmin (as they are global properties of the site owner). I cannot however get TranslatableDataObject extension to actually enable translation for them, despite reading carefully the setup instructions here.
Here's my _config.php:
// Set the site locale
i18n::set_locale('en_US');
SiteConfig::add_extension('Translatable');
// Set allowed locales
Translatable::set_allowed_locales(array('en_US', 'pl_PL'));
TranslatableDataObject::set_locales(array('en_US', 'pl_PL'));
Facility::add_extension("Translatable");
Facility::add_extension("TranslatableDataObject"); // tried "TranslatableDataObject('Title')" as well
FacilityCategory::add_extension("Translatable");
FacilityCategory::add_extension("TranslatableDataObject");
Could anyone please confirm that this setup should or won't work for me?
FacilityCategory.php
class FacilityCategory extends DataObject {
private static $db = array(
'Title' => 'Varchar'
);
private static $has_many = array(
'Facilities' => 'Facility.FacilityCategory'
);
public function getCMSFields(){
$fields = FieldList::create(
TextField::create('Title')
);
return $fields;
}
}
class FacilityCategoryAdmin extends ModelAdmin {
private static $menu_title = 'Facility Categories';
private static $url_segment = 'facility-categories';
private static $managed_models = array(
'FacilityCategory'
);
}
Facility.php
class Facility extends DataObject {
private static $db = array(
'Title' => 'Varchar',
);
private static $has_one = array(
'Category' => 'FacilityCategory'
);
private static $summary_fields = array(
'Title' => 'Name',
'Category.Title' => 'Type'
);
public function getCMSFields(){
$fields = FieldList::create(
TextField::create('Title'),
DropdownField::create('CategoryID', 'Category')
->setSource(FacilityCategory::get()->map()->toArray())
->setEmptyString('-- select a category --')
);
return $fields;
}
}
class FacilityAdmin extends ModelAdmin {
private static $menu_title = 'Facilities';
private static $url_segment = 'facilities';
private static $managed_models = array(
'Facility'
);
}

Answer 1

I've looked into this for you.
I've installed a new SS site using:
composer create-project silverstripe/installer
I've then added translatable:
composer require silverstripe/translatable ~2.0.8
My _config.php looks like this:
<?php
global $project;
$project = 'mysite';
global $database;
$database = '';
require_once('conf/ConfigureFromEnv.php');
// Set the site locale
i18n::set_locale('en_GB');
Translatable::set_default_locale('en_GB');
MyObj::add_extension('Translatable');
I've created a ModelAdmin.
I navigate to /dev/build?flush=all in my browser
I then navigated to the ModelAdmin in the CMS and I see this:
and
I think part of the problem is you're using two translatable modules at once, you only need one.
Other than that, I don't know why you wouldn't see the translatable tab. Are you getting any PHP errors, have you ?flushed or done a /dev/build?