Merge branch 'dev' into user_management

app/Enumerations/ActionLogTypes.php

@@ -0,0 +1,21 @@
+<?php
+namespace App\Enumerations;
+
+use App\Models\ActionLogType;
+
+class ActionLogTypes extends BaseEnumeration
+{
+    /**
+     * Init list of all action log types
+     *
+     * @throws Exceptions\EnumerationExistsException
+     */
+    protected static function init()
+    {
+        $types = ActionLogType::all(['id', 'name']);
+
+        foreach ($types as $type) {
+            self::push($type->id, $type->name);
+        }
+    }
+}

app/Enumerations/ActionLogTypesForLogger.php

@@ -0,0 +1,16 @@
+<?php
+namespace App\Enumerations;
+
+use App\Models\ActionLogType;
+
+class ActionLogTypesForLogger extends BaseEnumeration
+{
+    protected static function init()
+    {
+        $types = ActionLogType::all(['string_id', 'id']);
+
+        foreach ($types as $type) {
+            self::push($type->string_id, $type->id);
+        }
+    }
+}

app/Enumerations/BaseEnumeration.php

@@ -26,6 +26,11 @@ abstract class BaseEnumeration
                 $className::init();
             }
 
+            // it can happen that even after init no enumerations are available
+            if (empty(self::$items[$className])) {
+                self::$items[$className] = [];
+            }
+
             self::$initiliazed[] = $className;
         }
     }

app/Enumerations/ContentStatuses.php

@@ -0,0 +1,21 @@
+<?php
+namespace App\Enumerations;
+
+use App\Models\Content;
+
+class ContentStatuses extends BaseEnumeration
+{
+    protected static function init()
+    {
+        $roles = [
+            Content::STATUS_DRAFT     => 'admin/contents.status_' . Content::STATUS_DRAFT,
+            Content::STATUS_DELETED   => 'admin/contents.status_' . Content::STATUS_DELETED,
+            Content::STATUS_PROTECTED => 'admin/contents.status_' . Content::STATUS_PROTECTED,
+            Content::STATUS_PUBLIC    => 'admin/contents.status_' . Content::STATUS_PUBLIC
+        ];
+
+        foreach ($roles as $role => $translation) {
+            self::push($role, $translation);
+        }
+    }
+}

app/Enumerations/Modules.php

@@ -0,0 +1,21 @@
+<?php
+namespace App\Enumerations;
+
+use App\Models\Module;
+
+class Modules extends BaseEnumeration
+{
+    /**
+     * Init list of all installed modules
+     *
+     * @throws Exceptions\EnumerationExistsException
+     */
+    protected static function init()
+    {
+        $modules = Module::all(['handler', 'name']);
+
+        foreach ($modules as $module) {
+            self::push($module->handler, $module->name);
+        }
+    }
+}

app/Events/ChangeSettings.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Events;
+
+use App\Events\Event;
+use Illuminate\Queue\SerializesModels;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
+
+class ChangeSettings extends Event
+{
+    use SerializesModels;
+
+    /**
+     * Create a new event instance.
+     *
+     * @return void
+     */
+    public function __construct()
+    {
+        //
+    }
+}

app/Events/CreateNewCustomField.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Events;
+
+use App\Events\Event;
+use App\Models\CustomField;
+use Illuminate\Queue\SerializesModels;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
+
+class CreateNewCustomField extends Event
+{
+    use SerializesModels;
+    /**
+     * @var CustomField
+     */
+    public $customField;
+
+    /**
+     * Create a new event instance.
+     *
+     * @param CustomField $customField
+     */
+    public function __construct(CustomField $customField)
+    {
+        $this->customField = $customField;
+    }
+}

app/Events/CreateNewUser.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Events;
+
+use App\Events\Event;
+use App\Models\User;
+use Illuminate\Queue\SerializesModels;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
+
+class CreateNewUser extends Event
+{
+    use SerializesModels;
+    /**
+     * @var User
+     */
+    public $user;
+
+    /**
+     * Create a new event instance.
+     *
+     * @param User $user
+     */
+    public function __construct(User $user)
+    {
+        $this->user = $user;
+    }
+}

app/Events/DeleteCustomField.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Events;
+
+use App\Events\Event;
+use App\Models\CustomField;
+use Illuminate\Queue\SerializesModels;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
+
+class DeleteCustomField extends Event
+{
+    use SerializesModels;
+    /**
+     * @var CustomField
+     */
+    public $customField;
+
+    /**
+     * Create a new event instance.
+     *
+     * @param CustomField $customField
+     */
+    public function __construct(CustomField $customField)
+    {
+        $this->customField = $customField;
+    }
+}

app/Events/EditCustomField.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Events;
+
+use App\Events\Event;
+use App\Models\CustomField;
+use Illuminate\Queue\SerializesModels;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
+
+class EditCustomField extends Event
+{
+    use SerializesModels;
+    /**
+     * @var CustomField
+     */
+    public $customField;
+
+    /**
+     * Create a new event instance.
+     *
+     * @param CustomField $customField
+     */
+    public function __construct(CustomField $customField)
+    {
+        $this->customField = $customField;
+    }
+}

app/Events/EditUser.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace App\Events;
+
+use App\Models\User;
+use Illuminate\Queue\SerializesModels;
+
+class EditUser extends Event
+{
+    use SerializesModels;
+    /**
+     * @var User
+     */
+    public $user;
+
+    /**
+     * Create a new event instance.
+     *
+     * @param User $user
+     */
+    public function __construct(User $user)
+    {
+        $this->user = $user;
+    }
+}

app/Exceptions/Handler.php

@@ -3,6 +3,7 @@
 namespace App\Exceptions;
 
 use Exception;
+use Illuminate\Session\TokenMismatchException;
 use Illuminate\Validation\ValidationException;
 use Illuminate\Auth\Access\AuthorizationException;
 use Illuminate\Database\Eloquent\ModelNotFoundException;
@@ -45,6 +46,11 @@ class Handler extends ExceptionHandler
      */
     public function render($request, Exception $e)
     {
+        if ($e instanceof TokenMismatchException){
+            //redirect to form an example of how I handle mine
+            return redirect($request->fullUrl())->with('error', trans('validation.csrf'));
+        }
+
         return parent::render($request, $e);
     }
 }

app/Handlers/Handler.php

@@ -0,0 +1,39 @@
+<?php
+namespace App\Handlers;
+
+use App\Models\Content;
+use App\Models\User;
+use Illuminate\Support\Facades\Auth;
+
+/**
+ * Class Handler
+ *
+ * Handler is a class which handles module-specific behaviour which cannot be done by module itself, resp. cannot be done by some abstract magic.
+ *
+ * @package App\Handlers
+ */
+abstract class Handler
+{
+    /**
+     * Render given module into visitor area.
+     *
+     * @param Content $content    DB model from table contents
+     * @param array   $parameters parameters used for modifications/custom settings of given model
+     *
+     * @return mixed
+     */
+    abstract public function render(Content $content, $parameters);
+
+    /**
+     * Register admin menu (or multiple ones)
+     *
+     * This cannot be in ServiceProvider because Session is started at middleware. And ServiceProvider is called before
+     * starting any middleware..
+     *
+     * @param User $user model of logged user
+     */
+    public static function registerAdminMenu(User $user)
+    {
+        //
+    }
+}

app/Http/Controllers/Admin/CreateNewCustomField.php

@@ -4,8 +4,10 @@ namespace App\Http\Controllers\Admin;
 
 use App\Enumerations\CustomFieldResources;
 use App\Enumerations\CustomFieldTypes;
+use App\Events\CreateNewCustomField as CreateNewCustomFieldEvent;
 use App\Http\Requests\NewCustomFieldRequest;
 use App\Models\CustomField;
+use Illuminate\Support\Facades\Event;
 
 class CreateNewCustomField extends Controller
 {
@@ -59,6 +61,9 @@ class CreateNewCustomField extends Controller
 
         $customField->save();
 
+        // fire event about creating new custom field
+        Event::fire(new CreateNewCustomFieldEvent($customField));
+
         return redirect()
             ->route('customfields.new')
             ->with('success', trans('admin/customFields.successfullyCreated'));

app/Http/Controllers/Admin/CreateNewUser.php

@@ -3,11 +3,12 @@
 namespace App\Http\Controllers\Admin;
 
 use App\Enumerations\UserRoles;
+use App\Events\CreateNewUser as CreateNewUserEvent;
 use App\Http\Controllers\Controller;
 use App\Http\Requests;
 use App\Http\Requests\CreateNewUserRequest;
 use App\Models\User;
-use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Event;
 use Illuminate\Support\Facades\Hash;
 
 class CreateNewUser extends Controller
@@ -51,6 +52,9 @@ class CreateNewUser extends Controller
         // store user into database
         $user->save();
 
+        // fire event
+        Event::fire(new CreateNewUserEvent($user));
+
         // refresh page with information about successfull registration
         return redirect()
             ->route('users.new')

app/Http/Controllers/Admin/EditCustomField.php

@@ -4,10 +4,13 @@ namespace App\Http\Controllers\Admin;
 
 use App\Enumerations\CustomFieldResources;
 use App\Enumerations\CustomFieldTypes;
+use App\Events\DeleteCustomField;
+use App\Events\EditCustomField as EditCustomFieldEvent;
 use App\Http\Controllers\Controller;
 use App\Http\Requests;
 use App\Http\Requests\EditCustomFieldRequest;
 use App\Models\CustomField;
+use Illuminate\Support\Facades\Event;
 
 class EditCustomField extends Controller
 {
@@ -60,6 +63,9 @@ class EditCustomField extends Controller
         // save changes into database
         $customField->save();
 
+        // fire event about editing custom field
+        Event::fire(new EditCustomFieldEvent($customField));
+
         return redirect()
             ->route('customfields.edit', ['id' => $id])
             ->with('success', trans('admin/customFields.successfullyEdited'));
@@ -89,6 +95,9 @@ class EditCustomField extends Controller
         // delete item
         $field->delete();
 
+        // fire event about editing custom field
+        Event::fire(new DeleteCustomField($field));
+
         // redirect back to overview
         return redirect()
             ->route('customfields.overview')

app/Http/Controllers/Admin/EditUser.php

@@ -4,11 +4,13 @@ namespace App\Http\Controllers\Admin;
 
 use App\Enumerations\UserRoles;
 use App\Enumerations\UserStates;
+use App\Events\EditUser as EditUserEvent;
 use App\Http\Controllers\Controller;
 use App\Http\Requests;
 use App\Http\Requests\EditUserRequest;
 use App\Models\User;
 use Illuminate\Support\Facades\Auth;
+use Illuminate\Support\Facades\Event;
 use Illuminate\Support\Facades\Hash;
 
 class EditUser extends Controller
@@ -81,6 +83,9 @@ class EditUser extends Controller
 
         $user->save();
 
+        // fire event about editing user
+        Event::fire(new EditUserEvent($user));
+
         return redirect()
             ->route('users.detail', ['id' => $id])
             ->with('success', trans('admin/userManagement.userSuccessfullyEdited'));

app/Http/Kernel.php

@@ -29,6 +29,7 @@ class Kernel extends HttpKernel
             \Illuminate\Session\Middleware\StartSession::class,
             \Illuminate\View\Middleware\ShareErrorsFromSession::class,
             \App\Http\Middleware\VerifyCsrfToken::class,
+            \App\Http\Middleware\ModuleRegistrator::class
         ],
 
         'api' => [
@@ -45,6 +46,7 @@ class Kernel extends HttpKernel
      */
     protected $routeMiddleware = [
         'auth' => \App\Http\Middleware\Authenticate::class,
+        'onlyAdmin' => \App\Http\Middleware\RequireAdminRole::class,
 //        'auth.basic' => \Illuminate\Auth\Middleware\AuthenticateWithBasicAuth::class,
         'guest' => \App\Http\Middleware\RedirectIfAuthenticated::class,
         'throttle' => \Illuminate\Routing\Middleware\ThrottleRequests::class,

app/Http/Middleware/ModuleRegistrator.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use Closure;
+
+class ModuleRegistrator
+{
+    /**
+     * Handle an incoming request.
+     *
+     * @param  \Illuminate\Http\Request $request
+     * @param  \Closure                 $next
+     *
+     * @return mixed
+     */
+    public function handle($request, Closure $next)
+    {
+        $modules = \Module::enabled();
+
+        // iterate over all enabled modules
+        foreach ($modules as $key => $module) {
+            $handler = config($module->getName() . '.handler');
+
+            // try to register menus
+            if (method_exists($handler, 'registerAdminMenu') && \Auth::check()) {
+                call_user_func([$handler, 'registerAdminMenu'], \Auth::user());
+            }
+        }
+
+        return $next($request);
+    }
+}

app/Http/Middleware/RequireAdminRole.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use App\Models\User;
+use Closure;
+
+class RequireAdminRole
+{
+    /**
+     * Handle an incoming request.
+     *
+     * @param  \Illuminate\Http\Request $request
+     * @param  \Closure                 $next
+     *
+     * @return mixed
+     */
+    public function handle($request, Closure $next)
+    {
+        if (\Auth::user()->role != User::ROLE_ADMIN) {
+            return redirect()
+                ->back()
+                ->with('error', trans('auth.accessDenied'));
+        }
+
+        return $next($request);
+    }
+}

app/Http/routes.php

@@ -28,22 +28,55 @@ Route::group([
                  'prefix'     => 'admin'
              ], function () {
 
+    // these routes are available only for user with role admin
+    Route::group(['middleware' => 'onlyAdmin'], function () {
+        // display form for creating new user
+        Route::get('users/new', 'CreateNewUser@getNewUser')
+             ->name('users.new');
+
+        // POST methods
+        // display form for creating new user
+        Route::post('users/new', 'CreateNewUser@postRegistration')
+             ->name('users.newPost');
+
+        // display form for edit of existing user
+        Route::get('users/edit/{id}', 'EditUser@getEditExistingUser')
+             ->name('users.edit');
+
+        // form for adding new custom field
+        Route::get('customfields/new', 'CreateNewCustomField@getNew')
+             ->name('customfields.new');
+
+        // form for editing custom field
+        Route::get('customfields/edit/{id}', 'EditCustomField@getEditCustomField')
+             ->name('customfields.edit');
+
+        // form for adding new custom field
+        Route::post('customfields/new', 'CreateNewCustomField@postNew')
+             ->name('customfields.newPost');
+
+        // form for editing custom field
+        Route::post('customfields/edit/{id}', 'EditCustomField@postEditCustomField')
+             ->name('customfields.editPost');
+
+        Route::get('customfields/delete/{id}', 'EditCustomField@deleteCustomField')
+             ->name('customfields.delete');
+    });
+
+    // these routes are available for all logged (authenticated) users
+
     // display dashboard with some usefull information
     Route::get('/', 'Dashboard@getIndex')
          ->name('admin.dashboard');
 
-    // display form for creating new user
-    Route::get('users/new', 'CreateNewUser@getNewUser')
-         ->name('users.new');
-
-    // display form for edit of existing user
-    Route::get('users/edit/{id}', 'EditUser@getEditExistingUser')
-         ->name('users.edit');
-
     // display user detail in admin
     Route::get('users/detail/{id?}', 'UserDetail@getDetail')
          ->name('users.detail');
 
+    // method for saving edited data of user
+    Route::post('users/edit/{id}', 'EditUser@postEdit')
+         ->name('users.editPost');
+
     // display list of all users registered into our system
     Route::get('users/overview/{state?}/{perPage?}', 'UsersOverview@getOverview')
          ->name('users.overview');
@@ -55,25 +88,6 @@ Route::group([
     Route::get('customfields/overview', 'CustomFieldsOverview@getOverview')
          ->name('customfields.overview');
 
-    // form for adding new custom field
-    Route::get('customfields/new', 'CreateNewCustomField@getNew')
-         ->name('customfields.new');
-
-    // form for editing custom field
-    Route::get('customfields/edit/{id}', 'EditCustomField@getEditCustomField')
-         ->name('customfields.edit');
-
-    // form for adding new custom field
-    Route::post('customfields/new', 'CreateNewCustomField@postNew')
-         ->name('customfields.newPost');
-
-    // form for editing custom field
-    Route::post('customfields/edit/{id}', 'EditCustomField@postEditCustomField')
-         ->name('customfields.editPost');
-
-    Route::get('customfields/delete/{id}', 'EditCustomField@deleteCustomField')
-         ->name('customfields.delete');
-
     // logout method
     Route::get('logout', function () {
 
@@ -84,14 +98,6 @@ Route::group([
         return redirect()
             ->route('login')
             ->with('success', trans('admin/common.logoutSuccessfull'));
-    })->name('logout');
-
-    // POST methods
-    // display form for creating new user
-    Route::post('users/new', 'CreateNewUser@postRegistration')
-         ->name('users.newPost');
-
-    // method for saving edited data of user
-    Route::post('users/edit/{id}', 'EditUser@postEdit')
-         ->name('users.editPost');
+    })
+         ->name('logout');
 });

app/Listeners/LogChangeSettings.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace App\Listeners;
+
+use App\Events\ChangeSettings;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Contracts\Queue\ShouldQueue;
+
+class LogChangeSettings extends Logger
+{
+    /**
+     * Handle the event.
+     *
+     * @param  ChangeSettings  $event
+     * @return void
+     */
+    public function handle(ChangeSettings $event)
+    {
+        $parameters = [];
+
+        $this->saveLog($parameters);
+    }
+
+    /**
+     * Getter for action name. Used only internally
+     *
+     * @return mixed
+     */
+    protected function getName()
+    {
+        return 'changeSettings';
+    }
+}

app/Listeners/LogCreateCustomField.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace App\Listeners;
+
+use App\Events\CreateNewCustomField;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Contracts\Queue\ShouldQueue;
+
+class LogCreateCustomField extends Logger
+{
+
+    /**
+     * Handle the event.
+     *
+     * @param  CreateNewCustomField  $event
+     * @return void
+     */
+    public function handle(CreateNewCustomField $event)
+    {
+        $parameters = [
+            'id' => $event->customField->id,
+            'name' => $event->customField->name
+        ];
+
+        $this->saveLog($parameters);
+    }
+
+    /**
+     * Getter for action name. Used only internally
+     *
+     * @return mixed
+     */
+    protected function getName()
+    {
+        return 'newCustomField';
+    }
+}

app/Listeners/LogCreatedUser.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Listeners;
+
+use App\Events\CreateNewUser;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Contracts\Queue\ShouldQueue;
+
+class LogCreatedUser extends Logger
+{
+    /**
+     * Handle the event.
+     *
+     * @param CreateNewUser $event
+     */
+    public function handle(CreateNewUser $event)
+    {
+        $parameters = [
+            'id'    => $event->user->id,
+            'name'  => $event->user->name,
+            'email' => $event->user->email
+        ];
+
+        $this->saveLog($parameters);
+    }
+
+    /**
+     * Getter for action name. Used only internally
+     *
+     * @return mixed
+     */
+    protected function getName()
+    {
+        return 'createUser';
+    }
+}

app/Listeners/LogDeleteField.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Listeners;
+
+use App\Events\DeleteCustomField;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Contracts\Queue\ShouldQueue;
+
+class LogDeleteField extends Logger
+{
+    /**
+     * Handle the event.
+     *
+     * @param  DeleteCustomField  $event
+     * @return void
+     */
+    public function handle(DeleteCustomField $event)
+    {
+        $parameters = [
+            'id' => $event->customField->id,
+            'name' => $event->customField->name
+        ];
+
+        $this->saveLog($parameters);
+    }
+
+    /**
+     * Getter for action name. Used only internally
+     *
+     * @return mixed
+     */
+    protected function getName()
+    {
+        return 'deleteCustomField';
+    }
+}

app/Listeners/LogEditCustomField.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Listeners;
+
+use App\Events\EditCustomField;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Contracts\Queue\ShouldQueue;
+
+class LogEditCustomField extends Logger
+{
+    /**
+     * Handle the event.
+     *
+     * @param  EditCustomField  $event
+     * @return void
+     */
+    public function handle(EditCustomField $event)
+    {
+        $parameters = [
+            'id' => $event->customField->id,
+            'name' => $event->customField->name
+        ];
+
+        $this->saveLog($parameters);
+    }
+
+    /**
+     * Getter for action name. Used only internally
+     *
+     * @return mixed
+     */
+    protected function getName()
+    {
+        return 'editCustomField';
+    }
+}

app/Listeners/LogEditUser.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace App\Listeners;
+
+use App\Events\EditUser;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Contracts\Queue\ShouldQueue;
+
+class LogEditUser extends Logger
+{
+    /**
+     * Handle the event.
+     *
+     * @param  EditUser  $event
+     * @return void
+     */
+    public function handle(EditUser $event)
+    {
+        $parameters = [
+            'id'    => $event->user->id,
+            'name'  => $event->user->name,
+            'email' => $event->user->email
+        ];
+
+        $this->saveLog($parameters);
+    }
+
+    /**
+     * Getter for action name. Used only internally
+     *
+     * @return mixed
+     */
+    protected function getName()
+    {
+        return 'userEdit';
+    }
+}

app/Listeners/LogLogin.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Listeners;
+
+use Illuminate\Auth\Events\Login;
+
+class LogLogin extends Logger
+{
+    /**
+     * Handle the event.
+     *
+     * @param  Login $event
+     *
+     * @return void
+     */
+    public function handle(Login $event)
+    {
+        $parameters = [
+            'id'    => $event->user->id,
+            'name'  => $event->user->name,
+            'email' => $event->user->email
+        ];
+
+        $this->saveLog($parameters);
+    }
+
+    /**
+     * Getter for action name. Used only internally
+     *
+     * @return mixed
+     */
+    protected function getName()
+    {
+        return 'login';
+    }
+}

app/Listeners/LogLogout.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace App\Listeners;
+
+use Illuminate\Auth\Events\Logout;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Contracts\Queue\ShouldQueue;
+
+class LogLogout extends Logger
+{
+    /**
+     * Handle the event.
+     *
+     * @param  Logout  $event
+     * @return void
+     */
+    public function handle(Logout $event)
+    {
+        $parameters = [
+            'id'    => $event->user->id,
+            'name'  => $event->user->name,
+            'email' => $event->user->email
+        ];
+
+        $this->saveLog($parameters);
+    }
+
+    /**
+     * Getter for action name. Used only internally
+     *
+     * @return mixed
+     */
+    protected function getName()
+    {
+        return 'logout';
+    }
+}

app/Listeners/Logger.php

@@ -0,0 +1,74 @@
+<?php
+
+namespace App\Listeners;
+
+use App\Enumerations\ActionLogTypesForLogger;
+use App\Events\Event;
+use App\Models\ActionLog;
+use Illuminate\Support\Facades\Auth;
+
+abstract class Logger
+{
+    private $actionTypes = [];
+
+    /**
+     * Create the event listener.
+     *
+     * @return void
+     */
+    public function __construct()
+    {
+        $this->actionTypes = ActionLogTypesForLogger::getWithTranslations();
+    }
+
+    /**
+     * Shortcut for loging events
+     *
+     * @param array $parameters
+     */
+    protected function saveLog($parameters = [])
+    {
+        // try to translate string id into integer id
+        $typeId = $this->getTypeId();
+
+        // is user logged in and exists given type?
+        if (!Auth::check() || is_null($typeId)) {
+            return;
+        }
+
+        // get user id
+        $userId = Auth::user()->id;
+
+        // setup object for insertion
+        $data = [
+            'user_id'    => $userId,
+            'type_id'    => $typeId,
+            'parameters' => json_encode((array)$parameters)
+        ];
+
+        // create new logged event
+        ActionLog::create($data);
+    }
+
+    /**
+     * Translate string id to integer id
+     *
+     * @return int|null ID of action type when exists, null otherwise
+     */
+    private function getTypeId()
+    {
+        $name = $this->getName();
+        if (!isset($this->actionTypes[$name])) {
+            return null;
+        }
+
+        return $this->actionTypes[$name];
+    }
+
+    /**
+     * Getter for action name. Used only internally
+     *
+     * @return mixed
+     */
+    abstract protected function getName();
+}

app/Models/ActionLog.php

@@ -9,8 +9,9 @@ use Illuminate\Database\Eloquent\Model;
  */
 class ActionLog extends Model
 {
+    protected $table = 'action_log';
 
-    public $timestamps = true;
+    public $timestamps = false;
 
     protected $fillable = [
         'type_id',

app/Models/ActionLogType.php

@@ -14,6 +14,7 @@ class ActionLogType extends Model
 
     protected $fillable = [
         'name',
+        'string_id',
         'value'
     ];
 

app/Models/Content.php

@@ -3,15 +3,14 @@
 namespace App\Models;
 
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Support\Facades\DB;
 
 /**
  * Class Content
  */
 class Content extends Model
 {
-
     public $timestamps = true;
-
     protected $fillable = [
         'user_id',
         'module_handler',
@@ -26,8 +25,102 @@ class Content extends Model
         'module_settings',
         'status'
     ];
-
     protected $guarded = [];
+    const STATUS_DELETED = 'deleted';
+    const STATUS_DRAFT = 'draft';
+    const STATUS_PROTECTED = 'protected';
+    const STATUS_PUBLIC = 'public';
 
-        
+    /**
+     * Getter for overview of all content pages of given handler (module type)
+     *
+     * @param      $handler
+     * @param bool $joinAuthor
+     *
+     */
+    public function getByType($handler, $joinAuthor = false)
+    {
+        $query = DB::table('contents')
+                   ->select('contents.*')
+                   ->where('contents.status', '<>', self::STATUS_DELETED)
+                   ->where('module_handler', $handler)
+                   ->orderBy('created_at');
+
+        // join user email and user name to results when needed
+        if ($joinAuthor) {
+            $query = $query->join('users', 'users.id', '=', 'contents.user_id')
+                           ->select('contents.*', 'users.name AS author_name', 'users.email AS author_email');
+        }
+
+        return $query;
+    }
+
+    /**
+     * Updates current model with information about changed columns
+     *
+     * @param array $fields
+     * @param array $request
+     *
+     * @return int number of changed columns
+     */
+    public function updateWithHistory(array $fields, array $request)
+    {
+        $editBatch = uniqid();
+        $changed = 0;
+
+        foreach ($fields as $fieldDB => $fieldRequest) {
+            // ignore non-existing fields
+            if (!isset($this->$fieldDB) || !isset($request[$fieldRequest])) {
+                continue;
+            }
+
+            // remove any whitespaces around real content
+            $request[$fieldRequest] = trim($request[$fieldRequest]);
+
+            if ($this->$fieldDB != $request[$fieldRequest]) {
+
+                // setup history object
+                $history = [
+                    'user_id'    => \Auth::user()->id,
+                    'content_id' => $this->id,
+                    'edit_batch' => $editBatch,
+                    'column'     => $fieldRequest,
+                    'old_value'  => $this->$fieldDB,
+                    'new_value'  => $request[$fieldRequest]
+                ];
+
+                // save history
+                ContentHistory::create($history);
+
+                // save change into database
+                $this->$fieldDB = $request[$fieldRequest];
+
+                $changed++;
+            }
+        }
+
+        $this->save();
+
+        return [$editBatch, $changed];
+    }
+
+    /**
+     * Mark relationship with its historical records
+     *
+     * @return \Illuminate\Database\Eloquent\Relations\HasMany
+     */
+    public function history()
+    {
+        return $this->hasMany('App\Models\ContentHistory');
+    }
+
+    /**
+     * Mark relationship with users table
+     *
+     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
+     */
+    public function author()
+    {
+        return $this->belongsTo('App\Models\User', 'user_id');
+    }
 }

app/Models/ContentHistory.php

@@ -9,13 +9,14 @@ use Illuminate\Database\Eloquent\Model;
  */
 class ContentHistory extends Model
 {
+    protected $table = 'content_history';
 
-    public $timestamps = true;
+    // this table does not have created_at and updated_at fields
+    public $timestamps = false;
 
     protected $fillable = [
         'user_id',
         'content_id',
-        'changed_at',
         'edit_batch',
         'column',
         'new_value',

app/Models/Module.php

@@ -10,7 +10,7 @@ use Illuminate\Database\Eloquent\Model;
 class Module extends Model
 {
 
-    public $timestamps = true;
+    public $timestamps = false;
 
     protected $fillable = [
         'handler',

app/Providers/EventServiceProvider.php

@@ -13,8 +13,30 @@ class EventServiceProvider extends ServiceProvider
      * @var array
      */
     protected $listen = [
-        'App\Events\SomeEvent' => [
-            'App\Listeners\EventListener',
+        'App\Events\CreateNewUser'        => [
+            'App\Listeners\LogCreatedUser',
+        ],
+        'App\Events\EditUser'             => [
+            'App\Listeners\LogEditUser',
+        ],
+        'App\Events\CreateNewCustomField' => [
+            'App\Listeners\LogCreateCustomField',
+        ],
+        'App\Events\EditCustomField'      => [
+            'App\Listeners\LogEditCustomField',
+        ],
+        'App\Events\DeleteCustomField'    => [
+            'App\Listeners\LogDeleteField',
+        ],
+        'App\Events\ChangeSettings'       => [
+            'App\Listeners\LogChangeSettings',
+        ],
+        // internal Laravel events - should work as auth.login and auth.logout, however it doesn't...
+        'Illuminate\Auth\Events\Login'    => [
+            'App\Listeners\LogLogin'
+        ],
+        'Illuminate\Auth\Events\Logout'   => [
+            'App\Listeners\LogLogout'
         ],
     ];