小编hou*_*ous的帖子

我想显示检查变量是否为空，所以我制作了这段代码

{{ form_widget(form.showPrice, {% if travel is null %}  {'attr': {'checked': 'checked'}} {% endif %} ) }}

但我收到了这个错误

A hash key must be a quoted string, a number, a name, or an expression enclosed in
parentheses (unexpected token "operator" of value "%" in AppBundle:Dashboard/Travel:form.html.twig at line 100

我正在使用liipimaginebundle,除了在更新原始图像时删除和更新缓存图像,一切正常.我想知道我该怎么做

config.yml

liip_imagine:
resolvers:
   default:
      web_path: ~

filter_sets:
    cache: ~
    travel_75_55:
        quality: 80
        filters:
            thumbnail: { size: [75, 55], mode: outbound }

    travel_270_161:
        quality: 75
        filters:
            thumbnail: { size: [270, 161], mode: outbound}

这就是实体:形象

/**
 * Image
 *
 * @ORM\HasLifecycleCallbacks
*/
class Image
{
//.................

public $file;


public function setFile($file)
{
    $this->file = $file;

    if (null !== $this->url) {
    $this->tempFilename = $this->url;

    $this->url = null;
    $this->alt = null;
    }
}

public function getFile()
{
    return $this->file;
}

private $tempFilename; …

我是角度4的新手,我正在尝试构建我的第一个应用程序.

标题显示在屏幕上,但在控制台中出现此错误 :

这是html文件中的第26行:

<h1>{{result.title}}</h1>

这是TravelDetailComponent:

export class TravelDetailComponent implements OnInit {

result: string[];
id: number;

constructor(private http: Http, private globals: Globals, private activatedRoute: ActivatedRoute) {
}


ngOnInit() {
  this.activatedRoute.params.subscribe((params: Params) => {
      this.id = params['id'];
      console.log(this.id);
  });
  this.http.get(this.globals.baseUrl + 'travels/' + this.id)
      .map(res => res.json()).subscribe(result => this.result = 
result);
}

}

为什么标题显示在屏幕上,但我在控制台中出现此错误,我该如何解决？

我正在使用 symfony 4 和 Api Platform 2.5 。我创建了一个自定义操作来更改用户密码。

问题是当我发送一个空的 oldPassword或任何其他必需的属性时，验证不起作用。如您所见，我使用了一个名为"change_password"的验证组。

这是实体用户的一部分：

/**
 * @ApiResource(
 *     itemOperations={
 *         "user_change_password"={
 *             "method"="PUT",
 *             "path"="/users/change-password/{id}",
 *             "controller"=UserChangePassword::class,
 *             "formats"={"json"},
 *             "denormalization_context"={"groups"={"user:change-password"}},
 *             "normalization_context"={"groups"={"user:read"}},
 *             "validation_groups"={"change_password"},
 *             "access_control"="is_granted('EDIT', object)",
 *             "access_control_message"="access denied"
 *         },
 *     },
 * )
 *
 */
class User implements UserInterface, \Serializable, EquatableInterface
{
    /**
     * @Assert\NotBlank(
     *     message=Tthis value should not be blank",
     *     groups={"change_password"}
     * )
     * @SecurityAssert\UserPassword(
     *     message = "Wrong value for your …

我刚刚安装了 liipimaginebundle 但它不起作用并且不创建文件夹和图像

应用程序/配置/路由.yml：

_liip_imagine:
resource: "@LiipImagineBundle/Resources/config/routing.xml"

应用程序/配置/config.yml：

liip_imagine:
resolvers:
   default:
      web_path: ~

filter_sets:
    cache: ~
    travelThumb:
        quality: 80
        filters:
            thumbnail: { size: [120, 90], mode: inset }

枝条：

<img src="{{ travel.image.webPath | imagine_filter('travelThumb') }}" alt="{{ travel.image.alt }}" />

当我在浏览器中检查元素时，我得到以下代码：

<img src="http://localhost/agence/web/app_dev.php/media/cache/resolve/travelThumb/uploads/img/travels/1.jpeg" alt="entry_big_1.jpg">

当我在新选项卡中打开该链接检查元素时，出现此错误：

PHP exif extension is required to use the ExifMetadataReader

我想在动作控制器之后重定向到上一页,但是我收到了这个错误. Symfony版本2.5.8

Cannot redirect to an empty URL.
500 Internal Server Error - InvalidArgumentException

这是actiuon:

    public function addFavoriteAction(Travel $travel, Request $request)
    {

    if (!$this->get('security.context')->isGranted('IS_AUTHENTICATED_REMEMBERED')) {
        return $this->redirect($this->generateUrl('fos_user_security_login'));
    }

    if ($request->getMethod() == 'GET') {

    $favorite = new Favorite();

    $em = $this->getDoctrine()->getManager();

    $favorite->setUser($this->get('security.context')->getToken()->getUser());
    $favorite->setTravel($travel);


    $em->persist($favorite);
    $em->flush();
    }

    $referer = $this->getRequest()->headers->get('referer');
    return $this->redirect($referer);
}

更新

出现错误是因为我直接在浏览器地址栏中键入了操作链接.

这是输入用户名的源代码是:

<input type="text" id="user_username" name="user[username]" >

当我尝试在控制器中获取它时,我收到此错误:

Child "username" does not exist

控制者:

//.......
if ($request->getMethod() == 'POST') {
        $form->handleRequest($request);
        $i = 0;
        $username = $form["username"]->getData();
        $user= $em->getRepository('UsersBundle:User')->findOneByUsername($username);

//.......
}

这是formType

class EleveType extends AbstractType
{
 public function buildForm(FormBuilderInterface $builder, array $options)
   {
    $builder
        ->add('user', new UserType())
        ->add('ecole')
        ->add('niveauscolaire')

    ;
}

我想知道是否可以通过属性条件获取数组的长度，而无需在控制器中创建另一个查询。

public function pageAction()
{
    $em = $this->getDoctrine()->getManager();
    $pages = $em->getRepository('AppBundle:Page')->findAll();
    return $this->render(':Frontend/includes:menu.html.twig', array(
        'pages' => $pages
    ));
}

在视图中

//number of all pages
{{ pages|length }} // output 15 (ok)

现在是否可以从控制器返回的相同结果中获取page.activate == true的页面数？

// number of page where page.activate == true
 ??

我正在使用Ionic 3,我有一些要求用户进行身份验证的功能,因此当用户点击按钮时,会显示警报.由于这些功能遍布整个项目,所以我创建了一个全局函数,显示了这个警告,但当我把它放入push()或setRoot()时,项目停止工作并出现一个空白页面.

import { Injectable, ViewChild } from '@angular/core';
//..............

@Injectable()
export class Alerts {
@ViewChild(Nav) nav: Nav;

constructor(private alertCtrl: AlertController) {
}

mustLogin() {
    let alert = this.alertCtrl.create({
        title: 'must login',
        message: 'go to login ?',
        buttons: [
            {
                text: 'Cancel',
                role: 'cancel',
                handler: () => {
                    console.log('Cancel clicked');
                }
            },
            {
                text: 'Login',
                handler: () => {
                   this.nav.setRoot(LoginPage);
                   //this.nav.push(LoginPage); blank page also
                }
            }
        ]
    });
    alert.present();
}

}

我正在使用 symfony 6.3 并且已经安装了ymfony/ux-swup：

//bundles.php
<?php

return [
   // ..............

    Symfony\WebpackEncoreBundle\WebpackEncoreBundle::class => ['all' => true],
    Symfony\UX\Swup\SwupBundle::class => ['all' => true],
    Symfony\UX\Dropzone\DropzoneBundle::class => ['all' => true],
];

我已关注文档https://symfony.com/bundles/ux-swup/current/index.html#usage

树枝页面

    <div {{ stimulus_controller('symfony/ux-swup/swup') }} id="swup" data-turbo="false">

    <section class="content">
        <div class="container-fluid">

         my content
       </div>
    </section>
   </div>

但我发现这个树枝函数错误：

未知的“stimulus_controller”功能。