silverstripe-webpack/app/_config/extensions.yml

---
Name: webapp-extensions
---
# Basic extensions

SilverStripe\Admin\LeftAndMain:
  extensions:
    - Site\Extensions\LeftAndMainExtension

SilverStripe\SiteConfig\SiteConfig:
  extensions:
    - Site\Extensions\SocialExtension
    - Site\Extensions\SiteConfigExtension
    - Site\Extensions\NotificationsExtension

SilverStripe\CMS\Model\SiteTree:
  extensions:
    - Site\Extensions\SiteTreeExtension

Sheadawson\Linkable\Models\EmbeddedObject:
  extensions:
    - Site\Extensions\EmbeddedObjectExtension

SilverStripe\Assets:
  extensions:
    - Site\Extensions\ImageExtension

Dynamic\FlexSlider\Model\SlideImage:
  extensions:
    - Site\Extensions\SlideImageExtension

SilverStripe\Core\Injector\Injector:
  #SilverStripe\UserForms\Model\UserDefinedForm:
  #  class: Site\Extensions\UserDefinedForm_HiddenClass
  Sheadawson\Linkable\Forms\EmbeddedObjectField:
    class: Site\Extensions\EmbedObjectField
  SilverStripe\Forms\CompositeField:
    class: Site\Extensions\CompositeFieldExtension

# User Forms module
SilverStripe\UserForms\Model\UserDefinedForm:
  show_in_sitetree: false
  can_be_root: false
  extensions:
    - Site\Extensions\UserDefinedFormExtension

SilverStripe\UserForms\Form\UserForm:
  extensions:
    - Site\Extensions\PlaceholderFormExtension

DNADesign\ElementalUserForms\Model\ElementForm:
  extensions:
    - Site\Extensions\UserDefinedFormExtension