jika kategori dihapus pada post index

app/Repositories/Webprofile/PostRepository.php

@@ -35,11 +35,11 @@ class PostRepository extends Repository
         return DataTables::of($data)
             ->addIndexColumn()
             ->addColumn('action', function ($row) {
-                $btn = '<a href="' . url('/webprofile/posts/' . $row->id . '/edit') . '" data-toggle="tooltip"  data-id="' . $row->id . '" data-original-title="' . trans('label.edit') . '" class="edit btn btn-warning btn-round btn-sm edit">' . trans('label.edit') . '</a>';
+                $btn = '<a href="'.url('/webprofile/posts/'.$row->id.'/edit').'" data-toggle="tooltip"  data-id="'.$row->id.'" data-original-title="'.trans('label.edit').'" class="edit btn btn-warning btn-round btn-sm edit">'.trans('label.edit').'</a>';
 
-                $btn = $btn . ' <a href="javascript:void(0)" data-toggle="tooltip"  data-id="' . $row->id . '" data-original-title="' . trans('label.delete') . '" class="btn btn-danger btn-round btn-sm delete">' . trans('label.delete') . '</a>';
+                $btn = $btn.' <a href="javascript:void(0)" data-toggle="tooltip"  data-id="'.$row->id.'" data-original-title="'.trans('label.delete').'" class="btn btn-danger btn-round btn-sm delete">'.trans('label.delete').'</a>';
 
-                $btn = $btn . '<br>';
+                $btn = $btn.'<br>';
 
                 return $btn;
             })
@@ -49,38 +49,42 @@ class PostRepository extends Repository
                 } else {
                     $str = '<div style="color: red;"><i class="fa fa-times"></i></div>';
                 }
+
                 return $str;
             })
             ->addColumn('category', function ($row) {
-                $str = $row->rCategory->name;
-                
+                $str = '';
+                if ($row->rCategory) {
+                    $str = $row->rCategory->name;
+                }
+
                 return $str;
             })
             ->addColumn('post_date', function ($row) {
                 $str = '';
 
-                if($row->post_status == 1) {
-                    $str .= '<div style="color: green;">' . trans('label.publish') . '</div>';
+                if ($row->post_status == 1) {
+                    $str .= '<div style="color: green;">'.trans('label.publish').'</div>';
                 }
 
-                if($row->post_status == 0) {
-                    $str .= '<div style="color: red;">' . trans('label.draft') . '</div>';
+                if ($row->post_status == 0) {
+                    $str .= '<div style="color: red;">'.trans('label.draft').'</div>';
                 }
 
-                $str .= Date('d-m-Y', strtotime($row->post_date));
-                
+                $str .= date('d-m-Y', strtotime($row->post_date));
+
                 return $str;
             })
             ->addColumn('sum', function ($row) {
-                $str = trans('label.viewer') . ' : ' . $row->viewer . '<br>';
-                $str .= trans('label.command') . ' : ' . $row->comment_count;
-                
+                $str = trans('label.viewer').' : '.$row->viewer.'<br>';
+                $str .= trans('label.command').' : '.$row->comment_count;
+
                 return $str;
             })
             ->addColumn('title', function ($row) {
-                $str = $row->title . '<br>';
+                $str = $row->title.'<br>';
                 if ($row->rEn) {
-                    $str .= '<i style="color: blue;">' . $row->rEn['title'] . '</i>';
+                    $str .= '<i style="color: blue;">'.$row->rEn['title'].'</i>';
                 }
 
                 return $str;