我使用min()
和groupBy()
按照我的方式运行Laravel查询:
$certificates = CertificateRecord::whereHas('learner', function($query) use($user) { $query->where('user_id', '=', $user->id); })
->selectRaw('*,min(type) as type')
->groupBy('certificate_template_id')
->with('issuer','certificateType')
->paginate(10);
但是当我把它加到混合中时......
->when($request->type, function ($query) use ($request) {
return $query->where('type', '=', $request->type);
})
执行此where()
时会以某种方式忽略先前分组的结果,并返回所有未分组的行。
答案 0 :(得分:0)
请勿立即完成查询:
$query = $certificates = CertificateRecord::whereHas('learner', function($query) use($user) { $query->where('user_id', '=', $user->id); })
->selectRaw('*,min(type) as type')
->groupBy('certificate_template_id')
->orderBy('type')
->with('issuer','certificateType')
if ($request->status){ $query->where('status', '=', $request->status); }
$query->paginate(10);
答案 1 :(得分:0)
编辑:此处包含when
条件展示位置的原始查询对我来说似乎不错。这应该过滤type
字段而不影响groupBy。我想告诉你的一件事是,当设置$request->type
时,结果集中只有一个type
值,因此最小值将是相同的,没有任何变化。
$certificates = CertificateRecord::whereHas('learner', function($query) use($user) {
$query->where('user_id', '=', $user->id);
})
->with('issuer', 'certificateType')
->when($request->type, function ($query) use ($request) {
return $query->where('type', $request->type);
})
->selectRaw('*, min(type) as type')
->groupBy('certificate_template_id')
->paginate(10);
$certificates = CertificateRecord::whereHas('learner', function($query) use($user) {
$query->where('user_id', '=', $user->id);
})
->with('issuer', 'certificateType')
->selectRaw('*, min(type) as type')
->groupBy('certificate_template_id')
->when($request->type, function ($query) use ($request) {
return $query->having('type', '=', $request->type);
})
->paginate(10);
如果这不起作用,请切换到havingRaw。
return $query->havingRaw('min(type) = ' . $request->type);