下面由laravel教程栏目给大家介绍详解laravel orm操作，希望对需要的朋友有所帮助！
1、laravel获取最后一条sql语句和传入的值：
public function getOrderDetail($orderId){
\DB::connection()->enableQueryLog(); // 开启查询日志
$ordeList = OrderItem::where('order_id',$orderId)
->get()->toArray(); $queries = \DB::getQueryLog(); // 获取查询日志
echo "<pre>";
print_r($queries); echo PHP_EOL;
print_r($ordeList); echo "</pre>";直接上图：
取出部分数据：
public function getOrderDetail($uid,$orderId){
$user = $this->check_user($uid); $columns = ['id', 'order_id', 'item_id', 'item_name', 'item_price', 'original_price', 'buy_num', 'real_num', 'cancel_num', 'status', 'create_time']; $ordeList = OrderItem::where('order_id',$orderId)
-> orderBy('create_time','desc')
->get($columns)->toArray(); echo "<pre>";
print_r($ordeList); echo "</pre>"; exit;
}
不存在就创建，存在就更新：
Model::updateOrCreate( ['primary_key' => 8], ['field' => 'value', 'another_field' => 'another value'] );
Laravel子查询，多条件判断：
public function getCourseProgress($uid,$levelId=0,$lessonId=0,$type=0,$page=0)
{
//检测用户合法性
$user = $this->check_user($uid); //当前页数
$page = $page>0?$page:0; //每页显示数量
$perPage = config('bcc.per_page'); //显示字段
$columns = ['*']; #课程学习进度信息
$result = LessonProgress::where('customer_id',$uid)
->where(function($query) use ($type){
if($type) $query->where('source_type',$type);
})
->where(function($query) use ($levelId,$lessonId){
if($levelId && $lessonId) { $query->where(['level_id'=>$levelId,'lesson_id'=>$lessonId]);
}elseif($levelId){ $query->where('level_id', $levelId);
}
})->get(); //->paginate($perPage,$columns,$pageName='',$page);
if($result->isEmpty()) return $this->responseSuccess([],'No relevant information',20000); return $this->responseCollection($result,new CourseProgressTransformer);
}Laravel运行复杂的原生语句：
// 声母韵母分两类
$data=Pronounce::selectRaw('group_concat(`letter`) as letters')
->groupBy('pronounce_type')
->get()
->toArray();selectRaw里面可以直接写sql子句
