laravel 5：最新（） - > get（）方法不能提供准确的结果

Question

我在Laravel新手，我工作的一个项目上Laravel 5

我试图让导致基于created_at降序。但是我只能得到升序的结果。

这是我的控制器文件

<?php namespace App\Http\Controllers; 

use App\Position; 
use App\Http\Requests; 
use App\Http\Controllers\Controller; 

use Illuminate\Http\Request; 

class PositionController extends Controller { 
/** 
* Display a listing of the resource. 
* 
* @return Response 
*/ 
public function index() 
{ 
    $positions = Position::latest()->get(); 
    print_r($positions); 

} 

这是我的模型文件

<?php namespace App; 

    use Illuminate\Database\Eloquent\Model; 

    class Position extends Model { 

    // 

    } 

请咨询我错了我在做什么？

在此先感谢

Answer 1

你试过喜欢这个？：

public function index() 
{ 
    $positions = Position::orderBy('created_at', 'ASC')->get(); 
    print_r($positions); 

} 

Answer 2

public function index() 
{ 
    $positions = Position::oldest()->get(); 
    print_r($positions); 

} 

使用这两种方法，你会得到相同的查询字符串，所以它是非常奇怪的，你得到不同的输出。

>>> App\Category::oldest()->toSql() 
=> "select * from `categories` where `categories`.`deleted_at` is null order by `created_at` asc" 

>>> App\Category::orderBy('created_at','ASC')->toSql() 
=> "select * from `categories` where `categories`.`deleted_at` is null order by `created_at` asc" 

>>> App\Category::orderBy('created_at','DESC')->toSql() 
=> "select * from `categories` where `categories`.`deleted_at` is null order by `created_at` desc" 

>>> App\Category::latest()->toSql() 
=> "select * from `categories` where `categories`.`deleted_at` is null order by `created_at` desc"