issue641: add descendants to selected in alterQuery

src/Bundle/ChillPersonBundle/Export/Filter/AccompanyingCourseFilters/SocialIssueFilter.php

@@ -13,6 +13,7 @@ namespace Chill\PersonBundle\Export\Filter\AccompanyingCourseFilters;
 
 use Chill\MainBundle\Export\FilterInterface;
 use Chill\MainBundle\Templating\TranslatableStringHelper;
+use Chill\PersonBundle\Entity\SocialWork\SocialIssue;
 use Chill\PersonBundle\Export\Declarations;
 use Chill\PersonBundle\Form\Type\Select2SocialIssueType;
 use Chill\PersonBundle\Templating\Entity\SocialIssueRender;
@@ -56,7 +57,9 @@ class SocialIssueFilter implements FilterInterface
         $clause = $qb->expr()->in('acpsocialissue.id', ':socialissues');
 
         $qb ->andWhere($clause)
-            ->setParameter('socialissues', $data['accepted_socialissues']);
+            ->setParameter('socialissues',
+                $this->addDescendantsIssues($data['accepted_socialissues'])
+            );
     }
 
     public function applyOn()
@@ -71,17 +74,18 @@ class SocialIssueFilter implements FilterInterface
         ]);
     }
 
-    public function describeAction($data, $format = 'string')
+    public function describeAction($data, $format = 'string'): array
     {
         $issues = [];
 
         $socialissues = $data['accepted_socialissues'];
 
-        foreach ($socialissues as $i) {
-            if ('null' === $i) {
+        foreach ($socialissues as $si) {
+            /** @var SocialIssue $si */
+            if (null === $si) {
                 $issues[] = $this->translator->trans('Not given');
             } else {
-                $issues[] = $this->socialIssueRender->renderString($i, []);
+                $issues[] = $this->socialIssueRender->renderString($si, []);
             }
         }
 
@@ -91,8 +95,36 @@ class SocialIssueFilter implements FilterInterface
             ], ];
     }
 
-    public function getTitle()
+    public function getTitle(): string
     {
         return 'Filter by social issue';
     }
+
+    private function addDescendantsIssues($accepted_socialissues): array
+    {
+        $array = [];
+
+        foreach ($accepted_socialissues as $si) {
+            /** @var SocialIssue $si */
+            $array[] = $si;
+            if (!$si->hasParent()) {
+                $array = array_merge($array, $si->getDescendants()->toArray());
+            }
+        }
+
+        return $this->removeDuplicate($array);
+    }
+
+    private function removeDuplicate(array $array): array
+    {
+        $ids = array_map(static function ($item) {
+            return $item->getId();
+        }, $array);
+
+        $unique_ids = array_unique($ids);
+
+        return array_values(
+            array_intersect_key($array, $unique_ids)
+        );
+    }
 }