remove unused variables

Author: lucassouzavieira

src/Collection/Collection.php

@@ -454,7 +454,7 @@ public function addIndex(IndexInterface $index): bool
             $uri = Api::addQuery(Api::INDEX, ['collection' => $this->getName()]);
             $response = $this->connection->post($uri, $index->getCreateData());
 
-            $data = json_decode((string)$response->getBody(), true);
+            json_decode((string)$response->getBody(), true);
             return true;
         } catch (ClientException $exception) {
             $response = json_decode((string)$exception->getResponse()->getBody(), true);

src/Connection/ManagesConnection.php

@@ -17,7 +17,7 @@ abstract class ManagesConnection implements ManagesConnectionInterface
      *
      * @var Connection
      */
-    protected $connection;
+    protected Connection $connection;
 
     /**
      * Sets a connection for class.

src/Database/Database.php

@@ -29,28 +29,28 @@ class Database extends DatabaseHandler
      *
      * @var string
      */
-    protected $database;
+    protected string $database;
 
     /**
      * Collections of database
      *
      * @var ArrayList
      */
-    protected $collections;
+    protected ArrayList $collections;
 
     /**
      * Information about database
      *
      * @var array
      */
-    protected $info;
+    protected array $info;
 
     /**
      * Connection to use to manage database
      *
      * @var Connection
      */
-    protected $connection;
+    protected Connection $connection;
 
     /**
      * Database constructor.
@@ -103,7 +103,7 @@ public function hasCollection(string $collection): bool
         try {
             $uri = Api::buildDatabaseUri($this->connection->getBaseUri(), $this->getDatabaseName(), Api::COLLECTION);
             $uri = sprintf("%s/%s", $uri, $collection);
-            $response = $this->connection->get($uri);
+            $this->connection->get($uri);
             return true;
         } catch (ClientException $exception) {
             $response = json_decode((string)$exception->getResponse()->getBody(), true);

src/Database/DatabaseHandler.php

@@ -39,12 +39,11 @@ public static function create(Connection $connection, string $database): bool
 
             $uri = Api::buildSystemUri($connection->getBaseUri(), Api::DATABASE);
             $response = $connection->post($uri, $db);
-            $data = json_decode((string)$response->getBody(), true);
+            json_decode((string)$response->getBody(), true);
             return true;
         } catch (ClientException $exception) {
             $response = json_decode((string)$exception->getResponse()->getBody(), true);
-            $databaseException = new DatabaseException($response['errorMessage'], $exception, $response['errorNum']);
-            throw $databaseException;
+            throw new DatabaseException($response['errorMessage'], $exception, $response['errorNum']);
         }
     }
 
@@ -64,7 +63,7 @@ public static function drop(Connection $connection, string $database): bool
             $uri = Api::buildSystemUri($connection->getBaseUri(), Api::DATABASE);
             $uri = sprintf("%s/%s", $uri, $database);
             $response = $connection->delete($uri);
-            $data = json_decode((string)$response->getBody(), true);
+            json_decode((string)$response->getBody(), true);
             return true;
         } catch (ClientException $exception) {
             $response = json_decode((string)$exception->getResponse()->getBody(), true);
@@ -98,8 +97,7 @@ public static function list(Connection $connection): ArrayList
             return new ArrayList($data['result']);
         } catch (ClientException $exception) {
             $response = json_decode((string)$exception->getResponse()->getBody(), true);
-            $databaseException = new DatabaseException($response['errorMessage'], $exception, $response['errorNum']);
-            throw $databaseException;
+            throw new DatabaseException($response['errorMessage'], $exception, $response['errorNum']);
         }
     }
 
@@ -122,8 +120,7 @@ public static function userDatabases(Connection $connection): ArrayList
             return new ArrayList($data['result']);
         } catch (ClientException $exception) {
             $response = json_decode((string)$exception->getResponse()->getBody(), true);
-            $databaseException = new DatabaseException($response['errorMessage'], $exception, $response['errorNum']);
-            throw $databaseException;
+            throw new DatabaseException($response['errorMessage'], $exception, $response['errorNum']);
         }
     }
 
@@ -147,8 +144,7 @@ public static function current(Connection $connection): array
             return $data['result'];
         } catch (ClientException $exception) {
             $response = json_decode((string)$exception->getResponse()->getBody(), true);
-            $databaseException = new DatabaseException($response['errorMessage'], $exception, $response['errorNum']);
-            throw $databaseException;
+            throw new DatabaseException($response['errorMessage'], $exception, $response['errorNum']);
         }
     }
 }