FEATURE: use module_settings field instaed of config().

This way should be more reliable, because config() is available only after publishing module, however I can't publish module when it does not have config (module.json). In this way I can select all modules from database and generate module.json for each of them.

app/Handlers/Contracts/AppHandler.php

@@ -87,4 +87,11 @@ interface AppHandler
      * @param User $user model of logged user
      */
     public static function registerAdminMenu(User $user);
+
+    /**
+     * Install module
+     *
+     * @return mixed
+     */
+    public static function install();
 }

app/Handlers/Handler.php

@@ -65,16 +65,6 @@ abstract class Handler implements AppHandler
 
         // create instance of main menu
         \Menu::create('mainMenu', function ($menu) {
-            /**
-             * @var $menu \Pingpong\Menus\MenuBuilder
-             */
-
-            // create menu entries
-
-            /*
-             * WARNING: MenuBuilder::route() does not seem to work,
-             * nor route() helper function. We need to use action() helper instaed.
-            */
             $menu->route('admin.dashboard', trans('admin/mainMenu.dashboard'), [], 10, ['icon' => 'fa fa-dashboard']);
             $menu->dropdown(trans('admin/mainMenu.userManagement'), function ($sub) {
                 $sub->route('users.new', trans('admin/mainMenu.newUser'), [], 10, ['icon' => 'fa fa-user-plus']);
@@ -82,26 +72,32 @@ abstract class Handler implements AppHandler
                 $sub->route('users.overview', trans('admin/mainMenu.usersOverview'), [], 30, ['icon' => 'fa fa-users']);
             }, 20, ['icon' => 'fa fa-users']);
             $menu->dropdown(trans('admin/mainMenu.contentPages'), function ($sub) {
-
-                $sub->dropdown(trans('admin/mainMenu.newContentPage'), function ($sub) {
-                    $i = 1;
                 $modules = ModuleNamesWithIds::getWithTranslations();
+
+                if (!empty($modules)) {
+                    $sub->dropdown(trans('admin/mainMenu.newContentPage'), function ($sub) use ($modules) {
+                        $i = 1;
                         foreach ($modules as $module => $name) {
                             $sub->route('content.new', trans($name), ['moduleId' => $module], $i++);
                         }
                     }, 10, ['icon' => 'fa fa-plus']);
+                }
 
                 $sub->route('content.overview', trans('admin/mainMenu.contentPageOverview'), [], 20, ['icon' => 'fa fa-list']);
             }, 15, ['icon' => 'fa fa-database']);
             $menu->route('upload.overview', trans('admin/mainMenu.fileManager'), [], 30, ['icon' => 'fa fa-folder']);
             $menu->dropdown(trans('admin/mainMenu.widgets'), function ($sub) {
                 // create list of all widget types
-                $sub->dropdown(trans('admin/mainMenu.newWidget'), function ($sub) {
+                $widgets = WidgetTypes::getWithTranslations();
+
+                if (!empty($widgets)) {
+                    $sub->dropdown(trans('admin/mainMenu.newWidget'), function ($sub) use ($widgets) {
                         $i = 1;
-                    foreach (WidgetTypes::getWithTranslations() as $type => $name) {
+                        foreach ($widgets as $type => $name) {
                             $sub->route('widgets.new', $name, ['type' => $type], $i++);
                         }
                     }, 10, ['icon' => 'fa fa-plus']);
+                }
 
                 $sub->route('widgets.overview', trans('admin/mainMenu.widgetsOverview'), [], 20, ['icon' => 'fa fa-list']);
 
@@ -111,13 +107,17 @@ abstract class Handler implements AppHandler
                     $sub->route('widgetareas.overview', trans('admin/mainMenu.widgetAreaOverview'), [], 2, ['icon' => 'fa fa-list']);
                 }, 50, ['icon' => 'fa fa-object-group']);
             }, 28, ['icon' => 'fa fa-gears']);
-            $menu->dropdown(trans('admin/mainMenu.templates'), function ($sub) {
-                $i = 1;
+
             $templatePaths = TemplatePathsHumanReadableRootOnly::getWithTranslations();
+
+            if (!empty($templatePaths)) {
+                $menu->dropdown(trans('admin/mainMenu.templates'), function ($sub) use ($templatePaths) {
+                    $i = 1;
                     foreach ($templatePaths as $id => $name) {
                         $sub->route('templates.overview', $name, ['id' => $id], $i++);
                     }
                 }, 29, ['icon' => 'fa fa-folder-open']);
+            }
             $menu->dropdown(trans('admin/mainMenu.customFields'), function ($sub) {
                 $sub->route('customfields.new', trans('admin/mainMenu.customFieldsNew'), [], 10, ['icon' => 'fa fa-code']);
                 $sub->route('customfields.overview', trans('admin/mainMenu.customFieldsOverview'), [], 50, ['icon' => 'fa fa-code-fork']);

app/Models/Module.php

@@ -3,23 +3,56 @@
 namespace App\Models;
 
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Support\Facades\App;
 
 /**
  * Class Module
  */
 class Module extends Model
 {
-
     public $timestamps = false;
-
     protected $fillable = [
         'handler',
         'name',
         'description',
-        'alias'
+        'alias',
+        'module_settings',
+        'enabled'
     ];
-
     protected $guarded = [];
 
+    /**
+     * Create new module in database
+     *
+     * @param        $name
+     * @param        $alias
+     * @param string $description
+     * @param null   $handler
+     * @param array  $settings
+     *
+     * @return Module
+     * @throws \ErrorException
+     */
+    public static function install($name, $alias, $description, $handler, $settings)
+    {
+        // check if user does not want to install module in runtime
+        if (!App::runningInConsole()) {
+            throw new \ErrorException('Modules can be installed only via Artisan!');
+        }
 
+        // insert module into database
+        $module = Module::create([
+                                     'name'            => $name,
+                                     'description'     => $description,
+                                     'handler'         => $handler,
+                                     'alias'           => $alias,
+                                     'module_settings' => json_encode($settings),
+                                     'enabled'         => 1
+                                 ]);
+
+        // install something module-specific
+        call_user_func([$handler, 'install']);
+
+        return $module;
+    }
 }

app/Providers/ModuleManager.php

@@ -43,16 +43,31 @@ class ModuleManager extends ServiceProvider
      */
     private function createModulesJson(Module $module)
     {
-        $data = config($module->alias);
-        $data['active'] = $module->enabled;
+        $config = json_decode($module->module_settings);
+
+        if (is_null($config)) {
+            return;
+        }
 
         // path to module.json
-        $path = config('modules.paths.modules') . DIRECTORY_SEPARATOR . $data['name'] . DIRECTORY_SEPARATOR . 'module.json';
+        $path = config('modules.paths.modules') . DIRECTORY_SEPARATOR . $config->staticName . DIRECTORY_SEPARATOR . 'module.json';
 
+        // check if module config is writable
         if (!is_writable($path)) {
-            throw new \ErrorException('Cannot write to ' . $path . '. Module ' . $data['name'] . ' cannot be enabled.');
+            return;
         }
 
+        // set enabled/disabled status for this module
+        $data = new \stdClass();
+        $data->name = $config->staticName;
+        $data->description = $module->description;
+        $data->alias = $module->alias;
+        $data->providers = $config->providers;
+        $data->aliases = $config->aliases;
+        $data->order = $config->order;
+        $data->files = $config->files;
+        $data->active = $module->enabled;
+
         // create file
         file_put_contents($path, json_encode($data));
     }