Fixed code style.

src/Helpers/Trees/StructuralDBElementIterator.php

@@ -21,10 +21,8 @@
 
 namespace App\Helpers\Trees;
 
-
 use App\Entity\Base\StructuralDBElement;
 use Doctrine\Common\Collections\Collection;
-use RecursiveIterator;
 
 class StructuralDBElementIterator extends \ArrayIterator implements \RecursiveIterator
 {
@@ -37,22 +35,24 @@ class StructuralDBElementIterator extends \ArrayIterator implements \RecursiveIt
     }
 
     /**
-     * @inheritDoc
+     * {@inheritdoc}
      */
     public function hasChildren()
     {
         /** @var StructuralDBElement $element */
         $element = $this->current();
+
         return !empty($element->getSubelements());
     }
 
     /**
-     * @inheritDoc
+     * {@inheritdoc}
      */
     public function getChildren()
     {
         /** @var StructuralDBElement $element */
         $element = $this->current();
-        return new StructuralDBElementIterator($element->getSubelements()->toArray());
+
+        return new self($element->getSubelements()->toArray());
     }
-}
+}

src/Helpers/Trees/TreeViewNode.php

@@ -21,11 +21,6 @@
 
 namespace App\Helpers\Trees;
 
-use App\Entity\Base\DBElement;
-use App\Entity\Base\NamedDBElement;
-use App\Entity\Base\StructuralDBElement;
-use App\Helpers\Trees\TreeViewNodeState;
-
 /**
  * This class represents a node for the bootstrap treeview node.
  * When you serialize an array of these objects to JSON, you can use the serialized data in data for the treeview.
@@ -63,9 +58,10 @@ class TreeViewNode implements \JsonSerializable
     /**
      * Return the ID of the entity associated with this node.
      * Null if this node is not connected with an entity.
+     *
      * @return int|null
      */
-    public function getId() : ?int
+    public function getId(): ?int
     {
         return $this->id;
     }
@@ -73,12 +69,13 @@ class TreeViewNode implements \JsonSerializable
     /**
      * Sets the ID of the entity associated with this node.
      * Null if this node is not connected with an entity.
-     * @param  int|null  $id
+     *
      * @return $this
      */
     public function setId(?int $id): self
     {
         $this->id = $id;
+
         return $this;
     }
 
@@ -208,27 +205,27 @@ class TreeViewNode implements \JsonSerializable
     }
 
     /**
-     * @inheritDoc
+     * {@inheritdoc}
      */
     public function jsonSerialize()
     {
         $ret = [
-            'text' => $this->text
+            'text' => $this->text,
         ];
 
-        if($this->href !== null) {
+        if (null !== $this->href) {
             $ret['href'] = $this->href;
         }
 
-        if($this->tags !== null) {
+        if (null !== $this->tags) {
             $ret['tags'] = $this->tags;
         }
 
-        if($this->nodes !== null) {
+        if (null !== $this->nodes) {
             $ret['nodes'] = $this->nodes;
         }
 
-        if($this->state !== null) {
+        if (null !== $this->state) {
             $ret['state'] = $this->state;
         }
 

src/Helpers/Trees/TreeViewNodeIterator.php

@@ -21,11 +21,8 @@
 
 namespace App\Helpers\Trees;
 
-use App\Helpers\Trees\TreeViewNode;
-
 class TreeViewNodeIterator extends \ArrayIterator implements \RecursiveIterator
 {
-
     /**
      * @param $nodes TreeViewNode[]
      */
@@ -35,22 +32,24 @@ class TreeViewNodeIterator extends \ArrayIterator implements \RecursiveIterator
     }
 
     /**
-     * @inheritDoc
+     * {@inheritdoc}
      */
     public function hasChildren()
     {
         /** @var TreeViewNode $element */
         $element = $this->current();
+
         return !empty($element->getNodes());
     }
 
     /**
-     * @inheritDoc
+     * {@inheritdoc}
      */
     public function getChildren()
     {
         /** @var TreeViewNode $element */
         $element = $this->current();
-        return new TreeViewNodeIterator($element->getNodes());
+
+        return new self($element->getNodes());
     }
-}
+}

src/Helpers/Trees/TreeViewNodeState.php

@@ -75,20 +75,20 @@ class TreeViewNodeState implements \JsonSerializable
     }
 
     /**
-     * @inheritDoc
+     * {@inheritdoc}
      */
     public function jsonSerialize()
     {
         $ret = [];
-        if ($this->selected !== null) {
+        if (null !== $this->selected) {
             $ret['selected'] = $this->selected;
         }
 
-        if($this->disabled !== null) {
+        if (null !== $this->disabled) {
             $ret['disabled'] = $this->disabled;
         }
 
-        if($this->expanded !== null) {
+        if (null !== $this->expanded) {
             $ret['expanded'] = $this->expanded;
         }