拉拉维尔。 如何按一个字段排序但首先获取具有另一个字段特定值的项目？

Question

I got a database with entries. Each entry have start date and state fields. What I want to do is order entries by start date (done that) but first display ones that have state of 0 then the others (also ordered by start date) i'm also paginating data. Now order by date and pagination is pretty easy to do, but got no idea how to do that other thing.

Answer 1

The following build shows state=0 first, then ordered by date descending. You can call either ->get() or ->paginate() .

$builder = Model::where('something', '>', 'value')
    ->orderByRaw("IF(`state` = 0, 1, 0)  DESC")
    ->orderBy('date', 'DESC');

return $builder->paginate(15);

To order first ones by date ASC and the other ones by date DESC :

$builder = Model::where('something', '>', 'value')
    ->orderByRaw("IF(`state` = 0, 1, 0)  DESC")
    ->orderByRaw("IF(`state` = 0, date, 1)  ASC")
    ->orderByRaw("IF(`state` = 0, 1, date)  DESC");

I just split ordering into 3 different conditions.