雄辩的地方和或在从句

我尝试从包含多个 where 和/或子句的表中获得结果。

我的 SQL 语句是:

SELECT * FROM tbl
WHERE m__Id = 46
AND
t_Id = 2
AND
(Cab = 2 OR Cab = 4)

我怎样才能得到这个与 Laravel 雄辩？

我在 Laravel 的守则是:

$BType = CabRes::where('m_Id', '=', '46')
->where('t_Id', '=', '2')
->where('Cab', '2')
->orWhere('Cab', '=', '4')
->get();
221650 次浏览
小开
最佳答案

Using advanced wheres:

CabRes::where('m__Id', 46)
->where('t_Id', 2)
->where(function($q) {
$q->where('Cab', 2)
->orWhere('Cab', 4);
})
->get();

Or, even better, using whereIn():

CabRes::where('m__Id', 46)
->where('t_Id', 2)
->whereIn('Cab', $cabIds)
->get();
小开

Also, if you have a variable, 

CabRes::where('m_Id', 46)
->where('t_Id', 2)
->where(function($q) use ($variable){
$q->where('Cab', 2)
->orWhere('Cab', $variable);
})
->get();
小开

When we use multiple and (where) condition with last (where + or where) the where condition fails most of the time. for that we can use the nested where function with parameters passing in that.

$feedsql = DB::table('feeds as t1')
->leftjoin('groups as t2', 't1.groups_id', '=', 't2.id')
->where('t2.status', 1)
->whereRaw("t1.published_on <= NOW()")
>whereIn('t1.groupid', $group_ids)
->where(function($q)use ($userid) {
$q->where('t2.contact_users_id', $userid)
->orWhere('t1.users_id', $userid);
})
->orderBy('t1.published_on', 'desc')->get();

The above query validate all where condition then finally checks where t2.status=1 and (where t2.contact_users_id='$userid' or where t1.users_id='$userid')


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