Fixes #10 : Fix incorrect DbSelect::count() when setted \PDO::ATTR_CA…

…SE => \PDO::CASE_LOWER in driver options

Signed-off-by: Abdul Malik Ikhsan <samsonasik@gmail.com>

src/Adapter/DbSelect.php

@@ -9,6 +9,7 @@
 namespace Laminas\Paginator\Adapter;
 
 use Laminas\Db\Adapter\Adapter;
+use Laminas\Db\Adapter\Driver\Pdo\Pdo;
 use Laminas\Db\ResultSet\ResultSet;
 use Laminas\Db\ResultSet\ResultSetInterface;
 use Laminas\Db\Sql\Expression;
@@ -18,6 +19,7 @@
 class DbSelect implements AdapterInterface
 {
     const ROW_COUNT_COLUMN_NAME = 'C';
+    const ROW_COUNT_COLUMN_NAME_SMALL = 'c';
 
     /**
      * @var Sql
@@ -122,7 +124,7 @@ public function count()
         $result    = $statement->execute();
         $row       = $result->current();
 
-        $this->rowCount = (int) $row[self::ROW_COUNT_COLUMN_NAME];
+        $this->rowCount = (int) $row[$this->getRowCountColumnName()];
 
         return $this->rowCount;
     }
@@ -145,7 +147,7 @@ protected function getSelectCount()
 
         $countSelect = new Select;
 
-        $countSelect->columns([self::ROW_COUNT_COLUMN_NAME => new Expression('COUNT(1)')]);
+        $countSelect->columns([$this->getRowCountColumnName() => new Expression('COUNT(1)')]);
         $countSelect->from(['original_select' => $select]);
 
         return $countSelect;
@@ -165,4 +167,14 @@ public function getArrayCopy()
             ),
         ];
     }
+
+    private function getRowCountColumnName()
+    {
+        $driver = $this->sql->getAdapter()->getDriver();
+        if (get_class($driver) === Pdo::class && $driver->getConnection()->getResource()->getAttribute(\PDO::ATTR_CASE) !== \PDO::CASE_LOWER) {
+            return self::ROW_COUNT_COLUMN_NAME;
+        }
+
+        return self::ROW_COUNT_COLUMN_NAME_SMALL;
+    }
 }