laravel query: orWhere: double condition

问题

I have the following query, which does not give me the expected result:

    $query = $query->join('events_dates', function($join) use ($data){ 
                $join->on('events.id', '=', 'events_dates.event_id')
                        ->where('events_dates.start_date', "<=", date_format(date_create($data['date_end']), "Y-m-d"))
                        ->where('events_dates.end_date', '>=', date_format(date_create($data['date_start']), "Y-m-d"))
                        ->orWhere('recurrent', "=", 1)
                        ->where((strtotime($data["date_start"]) - strtotime('event_dates.start_date')) % ('events_dates.repeat_interval' * 86400), '=', 0); 
            }); 

There are 4 where clauses in this query. The requirement is that either the two first where clauses are executed, or either two last depending on the recurrentfield.

PHP returns an error division by zero, because the last Where clause should not be executed when recurrentis 0.

Any suggestions?

回答1:

I don't know your exact goal nor do I know what your db looks so this is just a wild guess:

$query = $query->join('events_dates', function($join) use ($data){ 
            $join->on('events.id', '=', 'events_dates.event_id')
                    ->where('events_dates.start_date', "<=", date_format(date_create($data['date_end']), "Y-m-d"))
                    ->where('events_dates.end_date', '>=', date_format(date_create($data['date_start']), "Y-m-d"))
                    ->orWhere('recurrent', "=", 1)
                    ->whereRaw('DATEDIFF(?, event_dates.start_date) % event_dates.repeat_interval = 0', array($data['date_start']));

Update

This might help for the between two dates part

->where('events_dates.start_date', '<=', new Carbon($data['date_end']))
->where('events_dates.end_date', '>=', new Carbon($data['date_start']))

来源：https://stackoverflow.com/questions/27707974/laravel-query-orwhere-double-condition