diff --git a/lib/neues_author.php b/lib/neues_author.php
index 230b008..a9fe12b 100644
--- a/lib/neues_author.php
+++ b/lib/neues_author.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * Klasse neues_author
+ * Klasse neues_author.
  *
  * Diese Klasse repräsentiert einen Autor in der News-Verwaltung.
  * Sie erbt von der rex_yform_manager_dataset Klasse.
@@ -30,9 +30,9 @@ class neues_author extends \rex_yform_manager_dataset
      *
      * @api
      */
-    public function getName() : ?string
+    public function getName(): ?string
     {
-        return $this->getValue("name");
+        return $this->getValue('name');
     }
 
     /**
@@ -47,9 +47,9 @@ public function getName() : ?string
      *
      * @api
      */
-    public function setName(string $value) : self
+    public function setName(string $value): self
     {
-        $this->setValue("name", $value);
+        $this->setValue('name', $value);
         return $this;
     }
 
@@ -65,9 +65,9 @@ public function setName(string $value) : self
      *
      * @api
      */
-    public function getNickname() : ?string
+    public function getNickname(): ?string
     {
-        return $this->getValue("nickname");
+        return $this->getValue('nickname');
     }
 
     /**
@@ -82,9 +82,9 @@ public function getNickname() : ?string
      *
      * @api
      */
-    public function setNickname(string $value) : self
+    public function setNickname(string $value): self
     {
-        $this->setValue("nickname", $value);
+        $this->setValue('nickname', $value);
         return $this;
     }
 
@@ -101,14 +101,14 @@ public function setNickname(string $value) : self
      *
      * @api
      */
-    public function getText(bool $asPlaintext = false) : ?string
+    public function getText(bool $asPlaintext = false): ?string
     {
-        if($asPlaintext) {
-            return strip_tags($this->getValue("text"));
+        if ($asPlaintext) {
+            return strip_tags($this->getValue('text'));
         }
-        return $this->getValue("text");
+        return $this->getValue('text');
     }
-    
+
     /**
      * Setzt den Text des Autors.
      * Sets the text of the author.
@@ -121,9 +121,9 @@ public function getText(bool $asPlaintext = false) : ?string
      *
      * @api
      */
-    public function setText(string $value) : self
+    public function setText(string $value): self
     {
-        $this->setValue("text", $value);
+        $this->setValue('text', $value);
         return $this;
     }
 
@@ -139,9 +139,9 @@ public function setText(string $value) : self
      *
      * @api
      */
-    public function getBeUserId() : ?int
+    public function getBeUserId(): ?int
     {
-        return $this->getValue("be_user_id");
+        return $this->getValue('be_user_id');
     }
 
     /**
@@ -156,9 +156,9 @@ public function getBeUserId() : ?int
      *
      * @api
      */
-    public function setBeUserId(int $value) : self
+    public function setBeUserId(int $value): self
     {
-        $this->setValue("be_user_id", $value);
+        $this->setValue('be_user_id', $value);
         return $this;
     }
 
@@ -171,7 +171,7 @@ public function setBeUserId(int $value) : self
      * Beispiel / Example:
      * $beUser = $author->getBeUser();
      */
-    public function getBeUser() : ?rex_user
+    public function getBeUser(): ?rex_user
     {
         return rex_user::get($this->getBeUserId());
     }
diff --git a/lib/neues_category.php b/lib/neues_category.php
index 6c69743..18ab805 100644
--- a/lib/neues_category.php
+++ b/lib/neues_category.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * Klasse neues_category
+ * Klasse neues_category.
  *
  * Diese Klasse repräsentiert eine Kategorie in der News-Verwaltung.
  * Sie erbt von der rex_yform_manager_dataset Klasse.
@@ -31,6 +31,7 @@ public function getName(): string
     {
         return $this->getValue('name');
     }
+
     /**
      * Setzt den Namen der Kategorie.
      * Sets the name of the category.
@@ -45,6 +46,7 @@ public function setName(string $name): self
         $this->setValue('name', $name);
         return $this;
     }
+
     /**
      * Gibt die Einträge der Kategorie zurück.
      * Returns the entries of the category.
@@ -60,6 +62,7 @@ public function getEntries(): ?rex_yform_manager_collection
     {
         return $this->getRelatedDataset('entry_ids');
     }
+
     /**
      * Gibt die URL der Kategorie zurück.
      * Returns the URL of the category.
diff --git a/lib/neues_entry.php b/lib/neues_entry.php
index 7539fcf..3207f51 100644
--- a/lib/neues_entry.php
+++ b/lib/neues_entry.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * Class neues_entry
+ * Class neues_entry.
  *
  * Diese Klasse repräsentiert einen neuen Eintrag.
  * This class represents a new entry.
@@ -32,6 +32,7 @@ public function setName(string $name): self
         $this->setValue('name', $name);
         return $this;
     }
+
     /**
      * @api
      * @return string
@@ -52,6 +53,7 @@ public function setAuthor(string $author): self
         $this->setValue('author', $author);
         return $this;
     }
+
     /**
      * @api
      * @return string
@@ -117,7 +119,7 @@ public function setImages(?array $images): self
     /** @api */
     public function getMedia(): ?rex_media
     {
-        if(rex_addon::get('media_manager_resposnive')->isAvailable()) {
+        if (rex_addon::get('media_manager_resposnive')->isAvailable()) {
             return rex_media_plus::get($this->getImage());
         }
         return rex_media::get($this->getImage());
@@ -216,15 +218,15 @@ public function setStatus(int $status): self
         return $this;
     }
 
-    public static function findOnline(int $category_id = null): ?rex_yform_manager_collection
+    public static function findOnline(?int $category_id = null): ?rex_yform_manager_collection
     {
-        if($category_id) {
+        if ($category_id) {
             return self::findByCategory($category_id);
         }
         return self::query()->where('status', 1, '>=')->find();
     }
 
-    public static function findByCategory(int $category_id = null, int $status = 1): ?rex_yform_manager_collection
+    public static function findByCategory(?int $category_id = null, int $status = 1): ?rex_yform_manager_collection
     {
         $query = self::query()->joinRelation('category_ids', 'c')->where('rex_neues_entry.status', $status, '>=')->where('c.id', $category_id);
         return $query->find();