Question

请一些人可以根据Laravel查询构建器的优化使用联接的帮助

Product::select(DB::raw('
            products.*
            ,(select name from users where users.id=products.user_id) as user_name
          '))
                ->where(function ($query) use ($searchKey) {
                    if (trim($searchKey) != '') {
                        $query->where('name', 'like', '%' . trim($searchKey) . '%');
                    }
                })
                ->orderBy($orderBy,$orderType)
                ->paginate(10)

Answer 1

也许是这样的：

//Start your query as usual, but just join the user data in. Do not use paginate function yet as this will trigger the query to execute.
$productQuery = Product
    ::selectRaw('products.*, users.name as user_name')
    ->join('users', 'users.id', 'products.user_id')
    ->orderBy($orderBy, $orderType);
//Check (for each param) if you want to add where clause
//You dont need to nest the where function, unless you have more filters, and need to group statements together
if(!empty(trim($searchKey))) {
    $productQuery->where('name', 'like', '%' . trim($searchKey) . '%');
}
//Execute query
$products = $productQuery->paginate(10);

请注意，查询构建器仅使用诸如chunk，get，first或paginate（还有更多）之类的特定功能来接触数据库。建立查询时，您可以完全自由地添加过滤器/排序/分组，直到执行查询为止。

我希望它能对您有所帮助。

优化Laravel查询

1 个答案: