标签: laravel-5

假设我在表中有7列,我想只选择其中两列,就像这样

SELECT `name`,`surname` FROM `table` WHERE `id` = '1';

在laravel雄辩的模型中,它可能看起来像这样

Table::where('id', 1)->get();

但我想这个表达式会选择id等于1的所有列,而我只想要两列(name,surname).如何只选择两列？

我正在尝试创建一个报告页面,显示从特定日期到特定日期的报告.这是我目前的代码:

$now = date('Y-m-d');
$reservations = Reservation::where('reservation_from', $now)->get();

这在纯SQL中的作用是什么select * from table where reservation_from = $now.

我在这里有这个查询,但我不知道如何将其转换为雄辩的查询.

SELECT * FROM table WHERE reservation_from BETWEEN '$from' AND '$to

如何将上面的代码转换为雄辩的查询？先感谢您.

我正在尝试使用我的Ubuntu PC上的composer安装laravel安装程序,但是我在安装过程中遇到了这个错误.`您的要求无法解析为可安装的软件包集.

  Problem 1
    - laravel/installer v1.4.1 requires ext-zip * -> the requested PHP extension zip is missing from your system.
    - laravel/installer v1.4.0 requires ext-zip * -> the requested PHP extension zip is missing from your system.
    - Installation request for laravel/installer ^1.4 -> satisfiable by laravel/installer[v1.4.0, v1.4.1].

  To enable extensions, verify that they are enabled in those .ini files:
    - /etc/php/7.0/cli/php.ini
    - /etc/php/7.0/cli/conf.d/10-opcache.ini
    - /etc/php/7.0/cli/conf.d/10-pdo.ini
    - /etc/php/7.0/cli/conf.d/20-calendar.ini
    - /etc/php/7.0/cli/conf.d/20-ctype.ini
    - /etc/php/7.0/cli/conf.d/20-exif.ini
    - /etc/php/7.0/cli/conf.d/20-fileinfo.ini
    - /etc/php/7.0/cli/conf.d/20-ftp.ini
    - /etc/php/7.0/cli/conf.d/20-gettext.ini
    - …

在Laravel中,我试图在我的控制器中调用$input = Request::all();一个store()方法,但是我收到以下错误:

Illuminate\Http\Request::all()假设$this不兼容的上下文,不应静态调用非静态方法

有任何帮助找出解决这个问题的最佳方法吗？(我跟随拉克拉斯特)

我正在使用Laravel构建一个项目.它在localhost上工作正常,但是当我将它上传到服务器(服务器安装了comodo ssl)时,我收到以下错误:

RuntimeException in EncryptionServiceProvider.php line 29:
No supported encrypter found. The cipher and / or key length are invalid
in EncryptionServiceProvider.php line 29
at EncryptionServiceProvider->Illuminate\Encryption\{closure}(object(Application), array()) in Container.php line 733
at Container->build(object(Closure), array()) in Container.php line 626
at Container->make('encrypter', array()) in Application.php line 674
at Application->make('Illuminate\Contracts\Encryption\Encrypter') in Container.php line 837
at Container->resolveClass(object(ReflectionParameter)) in Container.php line 800
at Container->getDependencies(array(object(ReflectionParameter)), array()) in Container.php line 771
at Container->build('SahraSalon\Http\Middleware\EncryptCookies', array()) in Container.php line 626
at Container->make('SahraSalon\Http\Middleware\EncryptCookies', array()) in Application.php line 674
at Application->make('SahraSalon\Http\Middleware\EncryptCookies') …

我正在使用Laravel 5.0,从这个版本中删除了Form和Html Helper,我不知道如何在我的头文件中包含外部css和js文件.目前我正在使用此代码.

<link rel="stylesheet" href="/css/bootstrap.min.css"> <!---  css file  --->
<script type="text/javascript" src="/js/jquery.min.js"></script>

我正在尝试通过homestead ssh以下方式连接到vagrant :

vagrant@127.0.0.1's password:

但我的公钥密码不起作用.
我的Homestead.yaml看起来像这样:

authorize: ~/.ssh/id_rsa.pub

keys:
    - ~/.ssh/id_rsa

我正在使用"Laravel Homestead版本2.0.14"和"Vagrant 1.7.2".

如何在刀片模板中使用switch？我用的时候:

@switch($login_error)
    @case(1)
        `E-mail` input is empty!
        @break
    @case(2)
        `Password` input is empty!
        @break
@endswitch

结果我将此文本视为明文.我更喜欢在几段代码中使用switch,因为它比我使用if时更干净.

但如果不可能只写它.

我正试图在Laravel中实现一个bittorrent跟踪器.但是,由于下载无法启动,我现在卡住了.有一个同伴似乎是播种,我100%确定它是可连接的.但是,当我在另一台机器上运行第二个客户端时,下载将无法启动.它停留在"连接到同行"(uTorrent).

来自跟踪器,当客户发布通知时,我发送以下响应:

d8:intervali1000e12:min intervali300e5:peers18:???i???XÚJU?6e

在下载客户端中,我有以下数据:

这是我的公告代码:

<?php

namespace App\Http\Controllers\Announce;

use App\Helpers\BencodeHelper;
use App\Models\Peer;
use App\Models\PeerTorrent;
use App\Models\Torrent;
use App\Models\User;
use Illuminate\Http\Request;
use Illuminate\Http\Response;
use Illuminate\Routing\Controller;
use Illuminate\Support\Facades\Input;
use Illuminate\Support\Facades\Log;

class AnnounceController extends Controller
{
    const __INTERVAL = 1000;
    const __TIMEOUT = 120;
    const __INTERVAL_MIN = 60;
    const __MAX_PPR = 20;

    public function announce(Request $request)
    {
        Log::info($request->fullUrl());
        $status = 200;
        $content = "";
        $passkey = Input::get('passkey');
        $peer_id = Input::get('peer_id');
        $port = Input::get('port');
        $info_hash = Input::get('info_hash');
        $downloaded = …

在Laravel 5应用程序的根目录下运行以下命令时

php artisan migrate:make create_mytable

我收到以下错误:

[InvalidArgumentException]              
Command "migrate:make" is not defined.  
Did you mean one of these?              
migrate:reset                       
migrate:refresh                     
migrate:status                      
migrate:rollback                    
migrate:install                     
migrate   

是否有一种新方法可以在Laravel 5中开始迁移？