我试图对一个雄辩的事物进行分页,但我无法使它发挥作用。分页引发错误,因为$products不是查询生成器对象,而是集合。
// i get this value from a $POST variable
$customOrderIds = [3,2,1,4,6,5,9,8,10,7,11,12,13,14,15,16,17,20,18,19,21,22]; // I want the products ordered in this sequence
$products = Product::get()->sortBy(function($product) use($customOrd
我想分页我的联接查询。它显示:方法分页不存在。
我用控制器写了这个查询
public function userBilling()
{
$billings = DB::table("billings")
->select("billings.email", "billings.plan","users.name","users.username", DB::raw("SUM(played_game.amount) as total"))
我正在从事laravel项目,我想在它上面使用分页,
对于项目需求,我使用了如下查询:
$result = DB::select("SELECT * FROM table WHERE ".$where." ORDER BY ".$sort." ".$orderBy);
和用于分页
use Illuminate\Pagination\Paginator;
和
Paginator::make($result, sizeof($result), 5);
但它显示了错误
Call to undefined method Illuminate\Pagina
有没有办法让对象未定义的属性变成空值?
因为laravel请求对象会自动使未定义的属性变成空值,如下所示。
$request->test; // This parameter never passed
error_log($request->test) //null
但是当涉及到对象或数组时,它会抛出错误。
$object->test // test is not defined
//Will throw ErrorException: Undefined property
它们之间有什么不同?
我有属于IssueCat模型的ContactForm模型。这种关系在模型中定义如下:
class ContactForm extends \Eloquent {
// Add your validation rules here
public static $rules = [
// 'title' => 'required'
];
// Don't forget to fill this array
protected $fillable = [];
public functi
我在我的应用程序中使用了formRequest特性的formRequest库。我已经安装并配置了文档中提到的内容,但似乎在某个地方我可能会丢失或在库中发布。下面是我的示例代码
验证类:
<?php
namespace App\Http\Requests;
use Pearl\RequestValidate\RequestAbstract;
use Illuminate\Validation\Rule;
use Illuminate\Http\Response;
class CommentFormRequest extends RequestAbstract
{
/**
我创建了一个数据库视图,当我对这个视图使用laravel分页时,它会抛出:
SQLSTATE[42000]: Syntax error or access violation: 1140 Mixing of GROUP columns (MIN(),MAX(),COUNT(),...) with no GROUP columns is illegal if there is no GROUP BY clause (SQL: select count(*) as aggregate from `parameter_log_site_detail` where `site_id` = EPE)
但