User can remove pic from an issue

app/Http/Controllers/Issues/PicController.php

@@ -16,7 +16,11 @@ class PicController extends Controller
         $issue->pic_id = $picData['pic_id'];
         $issue->save();
 
+        if ($issue->pic_id) {
             flash(__('issue.pic_assigned'), 'success');
+        } else {
+            flash(__('issue.pic_removed'), 'warning');
+        }
 
         return back();
     }

resources/lang/de/issue.php

@@ -29,6 +29,7 @@ return [
     'assign_pic'     => 'Assign PIC',
     'select_pic'     => 'Select a PIC',
     'pic_assigned'   => 'Issue PIC has been assigned.',
+    'pic_removed'    => 'Issue PIC has been removed.',
 
     // Attributes
     'title' => 'Issue Title',

resources/lang/en/issue.php

@@ -29,6 +29,7 @@ return [
     'assign_pic'     => 'Assign PIC',
     'select_pic'     => 'Select a PIC',
     'pic_assigned'   => 'Issue PIC has been assigned.',
+    'pic_removed'    => 'Issue PIC has been removed.',
 
     // Attributes
     'title' => 'Issue Title',

resources/lang/id/issue.php

@@ -29,6 +29,7 @@ return [
     'assign_pic'     => 'Tugaskan PIC',
     'select_pic'     => 'Pilih PIC',
     'pic_assigned'   => 'PIC telah ditugaskan.',
+    'pic_removed'    => 'PIC telah dihapus.',
 
     // Attributes
     'title' => 'Judul Issue',

tests/Feature/Projects/ProjectIssuesTest.php

@@ -146,4 +146,24 @@ class ProjectIssuesTest extends TestCase
             'pic_id' => $worker->id,
         ]);
     }
+
+    /** @test */
+    public function user_can_remove_pic_assignment()
+    {
+        $this->adminUserSigningIn();
+        $worker = $this->createUser('worker');
+        $issue = factory(Issue::class)->create(['pic_id' => $worker->id]);
+
+        $this->visitRoute('projects.issues.show', [$issue->project, $issue]);
+        $this->submitForm(__('issue.assign_pic'), [
+            'pic_id' => null,
+        ]);
+        $this->seeRouteIs('projects.issues.show', [$issue->project, $issue]);
+        $this->seeText(__('issue.pic_removed'));
+
+        $this->seeInDatabase('issues', [
+            'id'     => $issue->id,
+            'pic_id' => null,
+        ]);
+    }
 }