private function checkMigrationExistance($migration)
    {
        $result = $this->getMigrationTable()
            ->where('migration', $migration)
            ->first();

        return !is_null($result);
    }
private function checkMigrationExistance($migration)
    {
        $result = $this->getMigrationTable()
            ->where('migration', $migration)
            ->first();

        return !is_null($result);
    }
private function checkMigrationExistance ( $ migration ) { $ result = $ this -> getMigrationTable ( ) -> where ( 'migration' , $ migration ) -> first ( ) ; return ! is_null ( $ result ) ; }
Check the migration existance

@param string $migration

@return bool
Check the migration existance