protected function modifySrid(Blueprint $blueprint, Fluent $column)
    {
        if (! is_null($column->srid) && is_int($column->srid) && $column->srid > 0) {
            return ' srid '.$column->srid;
        }
    }
protected function modifySrid(Blueprint $blueprint, Fluent $column)
    {
        if (! is_null($column->srid) && is_int($column->srid) && $column->srid > 0) {
            return ' srid '.$column->srid;
        }
    }
protected function modifySrid ( Blueprint $ blueprint , Fluent $ column ) { if ( ! is_null ( $ column -> srid ) && is_int ( $ column -> srid ) && $ column -> srid > 0 ) { return ' srid ' . $ column -> srid ; } }
Get the SQL for a SRID column modifier.

@param  \Illuminate\Database\Schema\Blueprint  $blueprint
@param  \Illuminate\Support\Fluent  $column
@return string|null
Get the SQL for a SRID column modifier .