If you need to manually join data with two or more conditions, you can learn how to add multiple conditions in Laravel Eloquent's join query using this post. While you don't need to use it if you're using data relationships, this can be helpful if you're not. In this exa...
laravel自身的join方法如下: publicfunctionjoin($table,$one,$operator=null,$two=null,$type= 'inner',$where=false) {//If the first "column" of the join is really a Closure instance the developer // is trying to build a join with a complex "on" clause containing more than // one cond...
如果你的上層模型不是使用 id 作為主鍵,或是你希望以不同的欄位 join 下層模型,你可以傳遞第三參數至 belongsTo 方法指定上層資料表的自訂鍵:/** * 取得擁有該評論的文章。 */ public function post() { return $this->belongsTo('App\Post', 'foreign_key', 'other_key'); }Copy...
The join condition is specified with a whereColumn clause within the subquery, referencing the current user row:$latestPosts = DB::table('posts') ->select('id as post_id', 'title as post_title', 'created_at as post_created_at') ->whereColumn('user_id', 'users.id') ->orderBy('...
TheJoinClauseclass has been rewritten to unify its syntax with the query builder. The optional$whereparameter of theonclause has been removed. To add a "where" conditions you should explicitly use one of thewheremethods offered by thequery builder: ...
->join("users","ecs_users.user_id","=","order_info.user_id") ->join("order_goods","order_info.order_id","=","order_goods.order_id") ->get(); 左连接 leftJoin方法,用法和join一样 $order_user = Orders::select("order_sn","user_name") ...
($users); }# With Joinpublicfunctionindex(){$search="Har";$users= User::select("*")->where('status',1) ->where(function($query)use($search){$query->where('first_name','LIKE','%'.$search.'%') ->orWhere('last_name','LIKE','%'.$search.'%') ->orWhere('email','LIKE',...
$collection = collect([ ['product' => 'Desk', 'price' => 200], ['product' => 'Chair', 'price' => 80], ['product' => 'Bookcase', 'price' => 150], ['product' => 'Pencil', 'price' => 30], ['product' => 'Door', 'price' => 100], ]); $filtered = $collection->...
尝试将with()函数与联接一起使用时遇到问题:$query = Model::query()->with([ 'relationOne', 'relationTwo', ...]);$query->join(DB::raw("( select * from <models_table> where <some_condition>) as new_model"), 'new_model.id', '=', '<models_table>.id');$query->paginate($rpp)...
Laravel和Mysql通过带附加条件的pivot计算相关模型字符串 因此，我刚刚添加了选择几个字段（一个你需要和...