Laravel Jetstream Livewire 未定义变量

Posted 2023-03-14

【中文标题】Laravel Jetstream Livewire 未定义变量

【英文标题】：Laravel Jetstream Livewire undefined variable

【发布时间】：2021-09-18 00:30:58

【问题描述】：

我用<x-slot name="form2"> 复制了<x-slot name="form"> 并在form-section.blade.php 中插入了变量$form2，但得到了未定义$form2 的错误。我不知道为什么 update-profile-information-form.blade.php 没有发送$form2 html。我正在使用 Laravel 8。

错误：ErrorException 未定义变量：form2（查看： \resources\views\vendor\jetstream\components\form-section.blade.php)

form-section.blade.php

@props(['submit'])

<div  $attributes->merge(['class' => '']) >
    <x-jet-section-title>
        <x-slot name="title"> $title </x-slot>
        <x-slot name="description"> $description </x-slot>
    </x-jet-section-title>
    <div class="md:grid md:grid-cols-2 md:gap-6">
        <div class="mt-2 md:mt-0 md:col-span-1">
            <form wire:submit.prevent=" $submit ">
                <div class="px-4 py-5 bg-white sm:p-6 shadow  isset($actions) ? 'sm:rounded-tl-md sm:rounded-tr-md' : 'sm:rounded-md' ">
                    <div class="grid grid-cols-6 gap-6">
                         $form 
                    </div>
                </div>

                @if (isset($actions))
                    <div class="flex items-center justify-end px-4 py-3 bg-gray-50 text-right sm:px-6 shadow sm:rounded-bl-md sm:rounded-br-md">
                         $actions 
                    </div>
                @endif
            </form>
        </div>
        <div class="mt-2 md:mt-0 md:col-span-2">
            <form wire:submit.prevent=" $submit ">
                <div class="px-4 py-5 bg-white sm:p-6 shadow  isset($actions) ? 'sm:rounded-tl-md sm:rounded-tr-md' : 'sm:rounded-md' ">
                    <div class="grid grid-cols-6 gap-6">
                         $form2 
                    </div>
                </div>

                @if (isset($actions))
                    <div class="flex items-center justify-end px-4 py-3 bg-gray-50 text-right sm:px-6 shadow sm:rounded-bl-md sm:rounded-br-md">
                         $actions 
                    </div>
                @endif
            </form>
        </div>
    </div>
</div>

update-profile-information-form.blade.php

    <x-jet-form-section submit="updateProfileInformation">
    <x-slot name="title">
         __('Profile Information') 
    </x-slot>

    <x-slot name="description">
         __('Update your account\'s profile information and email address.') 
    </x-slot>
    <x-slot name="form">
        <!-- Name -->
        <div class="col-span-6 sm:col-span-4">
            <x-jet-label for="name" value=" __('Name') " />
            <x-jet-input id="name" type="text" class="mt-1 block w-full" wire:model.defer="state.name" autocomplete="name" />
            <x-jet-input-error for="name" class="mt-2" />
        </div>

        <!-- Email -->
        <div class="col-span-6 sm:col-span-4">
            <x-jet-label for="email" value=" __('Email') " />
            <x-jet-input id="email" type="email" class="mt-1 block w-full" wire:model.defer="state.email" />
            <x-jet-input-error for="email" class="mt-2" />
        </div>
    </x-slot>

    <x-slot name="form2">
        <!-- Profile Photo -->
        @if (Laravel\Jetstream\Jetstream::managesProfilePhotos())
        <div x-data="photoName: null, photoPreview: null" class="col-span-6 sm:col-span-4">
            <!-- Profile Photo File Input -->
            <input type="file" class="hidden"
                        wire:model="photo"
                        x-ref="photo"
                        x-on:change="
                                photoName = $refs.photo.files[0].name;
                                const reader = new FileReader();
                                reader.onload = (e) => 
                                    photoPreview = e.target.result;
                                ;
                                reader.readAsDataURL($refs.photo.files[0]);
                        " />

            <x-jet-label for="photo" value=" __('Photo') " />

            <!-- Current Profile Photo -->
            <div class="mt-2" x-show="! photoPreview">
                <img src=" $this->user->profile_photo_url "  class="rounded-full h-20 w-20 object-cover">
            </div>

            <!-- New Profile Photo Preview -->
            <div class="mt-2" x-show="photoPreview">
                <span class="block rounded-full w-20 h-20"
                    x-bind:style="'background-size: cover; background-repeat: no-repeat; background-position: center center; background-image: url(\'' + photoPreview + '\');'">
                </span>
            </div>

            <x-jet-secondary-button class="mt-2 mr-2" type="button" x-on:click.prevent="$refs.photo.click()">
                 __('Select A New Photo') 
            </x-jet-secondary-button>

            @if ($this->user->profile_photo_path)
                <x-jet-secondary-button type="button" class="mt-2" wire:click="deleteProfilePhoto">
                     __('Remove Photo') 
                </x-jet-secondary-button>
            @endif

            <x-jet-input-error for="photo" class="mt-2" />
        </div>
        @endif
    </x-slot>

    <x-slot name="actions">
        <x-jet-action-message class="mr-3" on="saved">
             __('Saved.') 
        </x-jet-action-message>

        <x-jet-button wire:loading.attr="disabled" wire:target="photo">
             __('Save') 
        </x-jet-button>
    </x-slot>
</x-jet-form-section>

【问题讨论】：

这能回答你的问题吗？ "Notice: Undefined variable", "Notice: Undefined index", and "Notice: Undefined offset" using PHP

您必须将该 $from2 属性绑定到刀片，通常来自控制器或相关组件

我有

在调试中出现在数据中，但说是未定义ibb.co/4dXCKh8

我刚刚发现了问题，在 form-section.blade.php 你有：@props(['submit', 'test' => '']) if您没有为该变量测试设置默认值，我们将看到的变量就像未定义...

【参考方案1】：

我刚刚发现了问题，在 form-section.blade.php 你有： @props(['submit', 'test' => '']) 如果你没有为那个变量 test 设置默认值，我们将看到的变量就像未定义的一样