public function isDbEmpty($conn)
    {
        $Folder = new Folder($this->config('schemaPath'));
        $existingSchemas = $conn->schemaCollection()->listTables();
        $newSchemas = array_map(function ($item) {
            return Inflector::underscore(str_replace('Schema.php', '', $item));
        }, $Folder->read()[1]);
        $result = !array_intersect($existingSchemas, $newSchemas);
        if (!$result) {
            $this->error(__d('installer', 'A previous installation of QuickAppsCMS already exists, please drop your database tables before continue.'));
        }

        return $result;
    }
public function isDbEmpty($conn)
    {
        $Folder = new Folder($this->config('schemaPath'));
        $existingSchemas = $conn->schemaCollection()->listTables();
        $newSchemas = array_map(function ($item) {
            return Inflector::underscore(str_replace('Schema.php', '', $item));
        }, $Folder->read()[1]);
        $result = !array_intersect($existingSchemas, $newSchemas);
        if (!$result) {
            $this->error(__d('installer', 'A previous installation of QuickAppsCMS already exists, please drop your database tables before continue.'));
        }

        return $result;
    }
public function isDbEmpty ( $ conn ) { $ Folder = new Folder ( $ this -> config ( 'schemaPath' ) ) ; $ existingSchemas = $ conn -> schemaCollection ( ) -> listTables ( ) ; $ newSchemas = array_map ( function ( $ item ) { return Inflector :: underscore ( str_replace ( 'Schema.php' , '' , $ item ) ) ; } , $ Folder -> read ( ) [ 1 ] ) ; $ result = ! array_intersect ( $ existingSchemas , $ newSchemas ) ; if ( ! $ result ) { $ this -> error ( __d ( 'installer' , 'A previous installation of QuickAppsCMS already exists, please drop your database tables before continue.' ) ) ; } return $ result ; }
Checks whether connected database is empty or not.

@param \Cake\Database\Connection $conn Database connection to use
@return bool True if database if empty and tables can be imported, false if
there are some existing tables
Checks whether connected database is empty or not .