Implemented different themes for Part-DB.

We use Bootswatch to provide different themed bootstrap CSS.

src/Entity/UserSystem/User.php

@@ -88,6 +88,10 @@ class User extends AttachmentContainingDBElement implements UserInterface, HasPe
     /** The User id of the anonymous user */
     public const ID_ANONYMOUS = 1;
 
+    public const AVAILABLE_THEMES = ['bootstrap', 'cerulean', 'cosmo', 'cyborg', 'darkly', 'flatly', 'journal',
+        'litera', 'lumen', 'lux', 'materia', 'minty', 'pulse', 'sandstone', 'simplex', 'sketchy', 'slate', 'solar',
+        'spacelab', 'united', 'yeti'];
+
     /**
      * @var Collection|UserAttachment[]
      * @ORM\OneToMany(targetEntity="App\Entity\Attachments\UserAttachment", mappedBy="element", cascade={"persist", "remove"}, orphanRemoval=true)
@@ -166,6 +170,7 @@ class User extends AttachmentContainingDBElement implements UserInterface, HasPe
     /**
      * @var string|null The theme
      * @ORM\Column(type="string", name="config_theme", nullable=true)
+     * @Assert\Choice(choices=User::AVAILABLE_THEMES)
      */
     protected $theme = '';
 

src/Form/UserAdminForm.php

@@ -35,6 +35,7 @@ namespace App\Form;
 use App\Entity\UserSystem\Group;
 use App\Entity\Base\NamedDBElement;
 use App\Entity\Base\StructuralDBElement;
+use App\Entity\UserSystem\User;
 use App\Form\Permissions\PermissionsType;
 use App\Form\Permissions\PermissionType;
 use App\Form\Type\CurrencyEntityType;
@@ -147,6 +148,10 @@ class UserAdminForm extends AbstractType
             ])
             ->add('theme', ChoiceType::class, [
                 'required' => false,
+                'choices' => User::AVAILABLE_THEMES,
+                'choice_label' => function ($entity, $key, $value) {
+                    return $value;
+                },
                 'placeholder' => $this->trans->trans('user_settings.theme.placeholder'),
                 'label' => $this->trans->trans('user.theme.label'),
                 'disabled' => !$this->security->isGranted('change_user_settings', $entity)

src/Form/UserSettingsType.php

@@ -75,6 +75,10 @@ class UserSettingsType extends AbstractType
                 ])
             ->add('theme', ChoiceType::class, [
                 'required' => false,
+                'choices' => User::AVAILABLE_THEMES,
+                'choice_label' => function ($entity, $key, $value) {
+                    return $value;
+                },
                 'placeholder' => $this->trans->trans('user_settings.theme.placeholder'),
                 'label' => $this->trans->trans('user.theme.label'),
                 ])