是什么导致此 Laravel 8 应用程序中的 "Add article" 表单失败？
What makes the "Add article" form in this Laravel 8 application fail?
我正在使用 Laravel 8 和 Bootstrap 制作博客应用程序 5.
我运行加入一个问题articles table.
在生成 articles table 的迁移文件中，我有：
public function up() {
Schema::create('articles', function (Blueprint $table) {
$table->id();
$table->unsignedInteger('user_id');
$table->foreign('user_id')->references('id')->on('users');
$table->unsignedInteger('category_id');
$table->foreign('category_id')->references('id')->on('catergories');
$table->string('title');
$table->string('slug');
$table->string('short_description');
$table->longText('content');
$table->tinyInteger('featured')->default('0');
$table->string('image')->nullable();
$table->timestamps();
});
}
在Article模型中，我有：
class Article extends Model {
use HasFactory;
protected $fillable = [
'user_id',
'category_id',
'title',
'slug',
'short_description',
'content',
'featured',
'image',
];
// Join users to articles
public function user() {
return $this->belongsTo(User::class);
}
// Join categories to articles
public function category() {
return $this->belongsTo(ArticleCategory::class);
}
}
在控制器中，我有：
namespace App\Http\Controllers\Dashboard;
use Illuminate\Support\Str;
use Illuminate\Support\Facades\Validator;
use Illuminate\Support\Facades\Auth;
use App\Http\Controllers\Controller;
use App\Models\ArticleCategory;
use App\Models\Article;
use Illuminate\Http\Request;
class ArticleController extends Controller {
private $rules = [
'category_id' => 'required|exists:article_categories,id',
'title' => 'required|string|max:255',
'short_description' => 'required|string|max:255',
'image' => 'image|mimes:jpeg,png,jpg|max:2048',
'content' => 'required|string',
'featured' => 'required'
];
private $messages = [
'category_id.required' => 'Please pick a category for the article',
'title.required' => 'Please provide a title for the article',
'short_description.required' => 'The article needs a short description',
'content.required' => 'Please add content'
];
public function categories() {
return ArticleCategory::all();
}
public function index() {
$articles = Article::paginate(10);
return view('dashboard/articles',
['articles' => $articles]
);
}
public function create() {
// Load the view and populate the form with categories
return view('dashboard/add-article',
['categories' => $this->categories()]
);
}
public function save(Request $request) {
// Validate form (with custom messages)
$validator = Validator::make($request->all(), $this->rules, $this->messages);
if ($validator->fails()) {
return redirect()->back()->withErrors($validator->errors())->withInput();
}
$fields = $validator->validated();
// Upload article image
$current_user = Auth::user();
if (isset($request->image)) {
$imageName = md5(time()) . $current_user->id . '.' . $request->image->extension();
$request->image->move(public_path('images/articles'), $imageName);
}
// Data to be added
$form_data = [
'user_id' => Auth::user()->id,
'category_id' => $fields['category_id'],
'title' => $fields['title'],
'slug' => Str::slug($fields['title'], '-'),
'short_description' => $fields['short_description'],
'content' => $fields['content'],
'image' => $fields['image'],
'featured' => $fields['featured']
];
// Insert data in the 'articles' table
$query = Article::create($form_data);
if ($query) {
return redirect()->route('dashboard.articles')->with('success', 'Article added');
} else {
return redirect()->back()->with('error', 'Adding article failed');
}
}
}
形式：
<form method="POST" action="{{ route('dashboard.articles.add') }}" enctype="multipart/form-data" novalidate>
@csrf
<div class="row mb-2">
<label for="title" class="col-md-12">{{ __('Title') }}</label>
<div class="col-md-12 @error('title') has-error @enderror">
<input id="title" type="text" placeholder="Title" class="form-control @error('title') is-invalid @enderror" name="title" value="{{ old('title') }}" autocomplete="title" autofocus>
@error('title')
<span class="invalid-feedback" role="alert">
<strong>{{ $message }}</strong>
</span>
@enderror
</div>
</div>
<div class="row mb-2">
<label for="short_description" class="col-md-12">{{ __('Short description') }}</label>
<div class="col-md-12 @error('short_description') has-error @enderror">
<input id="short_description" type="text" placeholder="Short description" class="form-control @error('short_description') is-invalid @enderror" name="short_description" value="{{ old('short_description') }}" autocomplete="short_description" autofocus>
@error('short_description')
<span class="invalid-feedback" role="alert">
<strong>{{ $message }}</strong>
</span>
@enderror
</div>
</div>
<div class="row mb-2">
<label for="category" class="col-md-12">{{ __('Category') }}</label>
<div class="col-md-12 @error('category_id') has-error @enderror">
<select name="category_id" id="category" class="form-control @error('category_id') is-invalid @enderror">
<option value="0">Pick a category</option>
@foreach($categories as $category)
<option value="{{ $category->id }}">{{ $category->name }}</option>
@endforeach
</select>
@error('category_id')
<span class="invalid-feedback" role="alert">
<strong>{{ $message }}</strong>
</span>
@enderror
</div>
</div>
<div class="row mb-2">
<div class="col-md-12 d-flex align-items-center switch-toggle">
<p class="mb-0 me-3">Featured article?</p>
<input class="mt-1" type="checkbox" name="featured" id="featured">
<label class="px-1" for="featured">{{ __('Toggle') }}</label>
</div>
</div>
<div class="row mb-2">
<label for="image" class="col-md-12">{{ __('Article image') }}</label>
<div class="col-md-12 @error('image') has-error @enderror">
<input type="file" name="image" id="file" class="file-upload-btn">
@error('image')
<span class="invalid-feedback" role="alert">
<strong>{{ $message }}</strong>
</span>
@enderror
</div>
</div>
<div class="row mb-2">
<label for="content" class="col-md-12">{{ __('Content') }}</label>
<div class="col-md-12 @error('content') has-error @enderror">
<textarea name="content" id="content" class="form-control @error('content') is-invalid @enderror" placeholder="Content" cols="30" rows="6">{{ old('content') }}</textarea>
@error('content')
<span class="invalid-feedback" role="alert">
<strong>{{ $message }}</strong>
</span>
@enderror
</div>
</div>
<div class="row mb-0">
<div class="col-md-12">
<button type="submit" class="w-100 btn btn-primary">
{{ __('Save') }}
</button>
</div>
</div>
</form>
路线：
// Article routes
Route::group(['prefix' => 'articles'], function() {
Route::get('/', [ArticleController::class, 'index'])->name('dashboard.articles');
Route::get('/new', [ArticleController::class, 'create'])->name('dashboard.articles.new');
Route::post('/add', [ArticleController::class, 'save'])->name('dashboard.articles.add');
});
问题：
即使表单通过验证并发生重定向，记录实际上并未添加到 articles table。
Laravel 抛出错误 General error: 1366 Incorrect integer value: 'on' for column 'featured' at row 1.
我的错误是什么？
您的列被定义为只能接受一个数字的 tinyInteger，但您似乎向其传递了一个字符串 on。
$table->tinyInteger('featured')->default('0');
General error: 1366 Incorrect integer value: 'on' for column
'featured' at row 1
尝试将复选框的值设置为 1。
<input class="mt-1" type="checkbox" name="featured" id="featured" value="1">
编辑，确保在将值添加到输入元素后将 boolean 添加到验证规则。
private $rules = [
'category_id' => 'required|exists:article_categories,id',
'title' => 'required|string|max:255',
'short_description' => 'required|string|max:255',
'image' => 'image|mimes:jpeg,png,jpg|max:2048',
'content' => 'required|string',
'featured' => 'required|boolean'
];
处理复选框时你需要知道这些；
a) 您不能使用 required，因为如果未选中复选框则不会随表单数据一起发送。
b) 默认值为 'on' 但实际上，数据中存在该字段意味着它已被检查，所以我通常做的是这样的；
'featured' => $request->has('featured')
这将 return 布尔值 true 或 false，适合存储在您的数据库中
所以你可以这样写
// Turn the 'featured' field value into a tiny integer
//$fields['featured'] = $request->get('featured') == 'on' ? 1 : 0;
// If no image is uploaded, use default.jpg
$fields['image'] = $request->get('image') == '' ? 'default.jpg' : $imageName;
// Data to be added
$form_data = [
'user_id' => Auth::user()->id,
'category_id' => $fields['category_id'],
'title' => $fields['title'],
'slug' => Str::slug($fields['title'], '-'),
'short_description' => $fields['short_description'],
'content' => $fields['content'],
'featured' => $request->has('featured'),
'image' => $fields['image']
];
如果它对任何人有帮助，这里是创建文章的工作代码：
路线：
// Article routes
Route::group(['prefix' => 'articles'], function() {
Route::get('/', [ArticleController::class, 'index'])->name('dashboard.articles');
Route::get('/new', [ArticleController::class, 'create'])->name('dashboard.articles.new');
Route::post('/add', [ArticleController::class, 'save'])->name('dashboard.articles.add');
});
在控制器中：
namespace App\Http\Controllers\Dashboard;
use Illuminate\Support\Str;
use Illuminate\Support\Facades\Validator;
use Illuminate\Support\Facades\Auth;
use App\Http\Controllers\Controller;
use App\Models\ArticleCategory;
use App\Models\Article;
use Illuminate\Http\Request;
class ArticleController extends Controller
{
private $rules = [
'category_id' => 'required|exists:article_categories,id',
'title' => 'required|string|max:255',
'short_description' => 'required|string|max:255',
'image' => 'image|mimes:jpeg,png,jpg|max:2048',
'content' => 'required|string'
];
private $messages = [
'category_id.required' => 'Please pick a category for the article',
'title.required' => 'Please provide a title for the article',
'short_description.required' => 'The article needs a short description',
'content.required' => 'Please add content'
];
public function categories() {
return ArticleCategory::all();
}
public function index() {
$articles = Article::orderBy('id', 'desc')->paginate(10);
return view('dashboard/articles',
['articles' => $articles]
);
}
public function create() {
// Load the view and populate the form with categories
return view('dashboard/add-article',
['categories' => $this->categories()]
);
}
public function save(Request $request) {
// Validate form (with custom messages)
$validator = Validator::make($request->all(), $this->rules, $this->messages);
if ($validator->fails()) {
return redirect()->back()->withErrors($validator->errors())->withInput();
}
$fields = $validator->validated();
// Upload article image
$current_user = Auth::user();
if (isset($request->image)) {
$imageName = md5(time()) . $current_user->id . '.' . $request->image->extension();
$request->image->move(public_path('images/articles'), $imageName);
}
// Turn the 'featured' field value into a tiny integer
$fields['featured'] = $request->get('featured') == 'on' ? 1 : 0;
// If no image is uploaded, use default.jpg
$fields['image'] = $request->get('image') == '' ? 'default.jpg' : $imageName;
// Data to be added
$form_data = [
'user_id' => Auth::user()->id,
'category_id' => $fields['category_id'],
'title' => $fields['title'],
'slug' => Str::slug($fields['title'], '-'),
'short_description' => $fields['short_description'],
'content' => $fields['content'],
'featured' => $fields['featured'],
'image' => $fields['image']
];
// Insert data in the 'articles' table
$query = Article::create($form_data);
if ($query) {
return redirect()->route('dashboard.articles')->with('success', 'Article added');
} else {
return redirect()->back()->with('error', 'Adding article failed');
}
}
}
我正在使用 Laravel 8 和 Bootstrap 制作博客应用程序 5.
我运行加入一个问题articles table.
在生成 articles table 的迁移文件中，我有：
public function up() {
Schema::create('articles', function (Blueprint $table) {
$table->id();
$table->unsignedInteger('user_id');
$table->foreign('user_id')->references('id')->on('users');
$table->unsignedInteger('category_id');
$table->foreign('category_id')->references('id')->on('catergories');
$table->string('title');
$table->string('slug');
$table->string('short_description');
$table->longText('content');
$table->tinyInteger('featured')->default('0');
$table->string('image')->nullable();
$table->timestamps();
});
}
在Article模型中，我有：
class Article extends Model {
use HasFactory;
protected $fillable = [
'user_id',
'category_id',
'title',
'slug',
'short_description',
'content',
'featured',
'image',
];
// Join users to articles
public function user() {
return $this->belongsTo(User::class);
}
// Join categories to articles
public function category() {
return $this->belongsTo(ArticleCategory::class);
}
}
在控制器中，我有：
namespace App\Http\Controllers\Dashboard;
use Illuminate\Support\Str;
use Illuminate\Support\Facades\Validator;
use Illuminate\Support\Facades\Auth;
use App\Http\Controllers\Controller;
use App\Models\ArticleCategory;
use App\Models\Article;
use Illuminate\Http\Request;
class ArticleController extends Controller {
private $rules = [
'category_id' => 'required|exists:article_categories,id',
'title' => 'required|string|max:255',
'short_description' => 'required|string|max:255',
'image' => 'image|mimes:jpeg,png,jpg|max:2048',
'content' => 'required|string',
'featured' => 'required'
];
private $messages = [
'category_id.required' => 'Please pick a category for the article',
'title.required' => 'Please provide a title for the article',
'short_description.required' => 'The article needs a short description',
'content.required' => 'Please add content'
];
public function categories() {
return ArticleCategory::all();
}
public function index() {
$articles = Article::paginate(10);
return view('dashboard/articles',
['articles' => $articles]
);
}
public function create() {
// Load the view and populate the form with categories
return view('dashboard/add-article',
['categories' => $this->categories()]
);
}
public function save(Request $request) {
// Validate form (with custom messages)
$validator = Validator::make($request->all(), $this->rules, $this->messages);
if ($validator->fails()) {
return redirect()->back()->withErrors($validator->errors())->withInput();
}
$fields = $validator->validated();
// Upload article image
$current_user = Auth::user();
if (isset($request->image)) {
$imageName = md5(time()) . $current_user->id . '.' . $request->image->extension();
$request->image->move(public_path('images/articles'), $imageName);
}
// Data to be added
$form_data = [
'user_id' => Auth::user()->id,
'category_id' => $fields['category_id'],
'title' => $fields['title'],
'slug' => Str::slug($fields['title'], '-'),
'short_description' => $fields['short_description'],
'content' => $fields['content'],
'image' => $fields['image'],
'featured' => $fields['featured']
];
// Insert data in the 'articles' table
$query = Article::create($form_data);
if ($query) {
return redirect()->route('dashboard.articles')->with('success', 'Article added');
} else {
return redirect()->back()->with('error', 'Adding article failed');
}
}
}
形式：
<form method="POST" action="{{ route('dashboard.articles.add') }}" enctype="multipart/form-data" novalidate>
@csrf
<div class="row mb-2">
<label for="title" class="col-md-12">{{ __('Title') }}</label>
<div class="col-md-12 @error('title') has-error @enderror">
<input id="title" type="text" placeholder="Title" class="form-control @error('title') is-invalid @enderror" name="title" value="{{ old('title') }}" autocomplete="title" autofocus>
@error('title')
<span class="invalid-feedback" role="alert">
<strong>{{ $message }}</strong>
</span>
@enderror
</div>
</div>
<div class="row mb-2">
<label for="short_description" class="col-md-12">{{ __('Short description') }}</label>
<div class="col-md-12 @error('short_description') has-error @enderror">
<input id="short_description" type="text" placeholder="Short description" class="form-control @error('short_description') is-invalid @enderror" name="short_description" value="{{ old('short_description') }}" autocomplete="short_description" autofocus>
@error('short_description')
<span class="invalid-feedback" role="alert">
<strong>{{ $message }}</strong>
</span>
@enderror
</div>
</div>
<div class="row mb-2">
<label for="category" class="col-md-12">{{ __('Category') }}</label>
<div class="col-md-12 @error('category_id') has-error @enderror">
<select name="category_id" id="category" class="form-control @error('category_id') is-invalid @enderror">
<option value="0">Pick a category</option>
@foreach($categories as $category)
<option value="{{ $category->id }}">{{ $category->name }}</option>
@endforeach
</select>
@error('category_id')
<span class="invalid-feedback" role="alert">
<strong>{{ $message }}</strong>
</span>
@enderror
</div>
</div>
<div class="row mb-2">
<div class="col-md-12 d-flex align-items-center switch-toggle">
<p class="mb-0 me-3">Featured article?</p>
<input class="mt-1" type="checkbox" name="featured" id="featured">
<label class="px-1" for="featured">{{ __('Toggle') }}</label>
</div>
</div>
<div class="row mb-2">
<label for="image" class="col-md-12">{{ __('Article image') }}</label>
<div class="col-md-12 @error('image') has-error @enderror">
<input type="file" name="image" id="file" class="file-upload-btn">
@error('image')
<span class="invalid-feedback" role="alert">
<strong>{{ $message }}</strong>
</span>
@enderror
</div>
</div>
<div class="row mb-2">
<label for="content" class="col-md-12">{{ __('Content') }}</label>
<div class="col-md-12 @error('content') has-error @enderror">
<textarea name="content" id="content" class="form-control @error('content') is-invalid @enderror" placeholder="Content" cols="30" rows="6">{{ old('content') }}</textarea>
@error('content')
<span class="invalid-feedback" role="alert">
<strong>{{ $message }}</strong>
</span>
@enderror
</div>
</div>
<div class="row mb-0">
<div class="col-md-12">
<button type="submit" class="w-100 btn btn-primary">
{{ __('Save') }}
</button>
</div>
</div>
</form>
路线：
// Article routes
Route::group(['prefix' => 'articles'], function() {
Route::get('/', [ArticleController::class, 'index'])->name('dashboard.articles');
Route::get('/new', [ArticleController::class, 'create'])->name('dashboard.articles.new');
Route::post('/add', [ArticleController::class, 'save'])->name('dashboard.articles.add');
});
问题：
即使表单通过验证并发生重定向，记录实际上并未添加到 articles table。
Laravel 抛出错误 General error: 1366 Incorrect integer value: 'on' for column 'featured' at row 1.
我的错误是什么？
您的列被定义为只能接受一个数字的 tinyInteger，但您似乎向其传递了一个字符串 on。
$table->tinyInteger('featured')->default('0');
General error: 1366 Incorrect integer value: 'on' for column 'featured' at row 1
尝试将复选框的值设置为 1。
<input class="mt-1" type="checkbox" name="featured" id="featured" value="1">
编辑，确保在将值添加到输入元素后将 boolean 添加到验证规则。
private $rules = [
'category_id' => 'required|exists:article_categories,id',
'title' => 'required|string|max:255',
'short_description' => 'required|string|max:255',
'image' => 'image|mimes:jpeg,png,jpg|max:2048',
'content' => 'required|string',
'featured' => 'required|boolean'
];
处理复选框时你需要知道这些；
a) 您不能使用 required，因为如果未选中复选框则不会随表单数据一起发送。
b) 默认值为 'on' 但实际上，数据中存在该字段意味着它已被检查，所以我通常做的是这样的；
'featured' => $request->has('featured')
这将 return 布尔值 true 或 false，适合存储在您的数据库中
所以你可以这样写
// Turn the 'featured' field value into a tiny integer
//$fields['featured'] = $request->get('featured') == 'on' ? 1 : 0;
// If no image is uploaded, use default.jpg
$fields['image'] = $request->get('image') == '' ? 'default.jpg' : $imageName;
// Data to be added
$form_data = [
'user_id' => Auth::user()->id,
'category_id' => $fields['category_id'],
'title' => $fields['title'],
'slug' => Str::slug($fields['title'], '-'),
'short_description' => $fields['short_description'],
'content' => $fields['content'],
'featured' => $request->has('featured'),
'image' => $fields['image']
];
如果它对任何人有帮助，这里是创建文章的工作代码：
路线：
// Article routes
Route::group(['prefix' => 'articles'], function() {
Route::get('/', [ArticleController::class, 'index'])->name('dashboard.articles');
Route::get('/new', [ArticleController::class, 'create'])->name('dashboard.articles.new');
Route::post('/add', [ArticleController::class, 'save'])->name('dashboard.articles.add');
});
在控制器中：
namespace App\Http\Controllers\Dashboard;
use Illuminate\Support\Str;
use Illuminate\Support\Facades\Validator;
use Illuminate\Support\Facades\Auth;
use App\Http\Controllers\Controller;
use App\Models\ArticleCategory;
use App\Models\Article;
use Illuminate\Http\Request;
class ArticleController extends Controller
{
private $rules = [
'category_id' => 'required|exists:article_categories,id',
'title' => 'required|string|max:255',
'short_description' => 'required|string|max:255',
'image' => 'image|mimes:jpeg,png,jpg|max:2048',
'content' => 'required|string'
];
private $messages = [
'category_id.required' => 'Please pick a category for the article',
'title.required' => 'Please provide a title for the article',
'short_description.required' => 'The article needs a short description',
'content.required' => 'Please add content'
];
public function categories() {
return ArticleCategory::all();
}
public function index() {
$articles = Article::orderBy('id', 'desc')->paginate(10);
return view('dashboard/articles',
['articles' => $articles]
);
}
public function create() {
// Load the view and populate the form with categories
return view('dashboard/add-article',
['categories' => $this->categories()]
);
}
public function save(Request $request) {
// Validate form (with custom messages)
$validator = Validator::make($request->all(), $this->rules, $this->messages);
if ($validator->fails()) {
return redirect()->back()->withErrors($validator->errors())->withInput();
}
$fields = $validator->validated();
// Upload article image
$current_user = Auth::user();
if (isset($request->image)) {
$imageName = md5(time()) . $current_user->id . '.' . $request->image->extension();
$request->image->move(public_path('images/articles'), $imageName);
}
// Turn the 'featured' field value into a tiny integer
$fields['featured'] = $request->get('featured') == 'on' ? 1 : 0;
// If no image is uploaded, use default.jpg
$fields['image'] = $request->get('image') == '' ? 'default.jpg' : $imageName;
// Data to be added
$form_data = [
'user_id' => Auth::user()->id,
'category_id' => $fields['category_id'],
'title' => $fields['title'],
'slug' => Str::slug($fields['title'], '-'),
'short_description' => $fields['short_description'],
'content' => $fields['content'],
'featured' => $fields['featured'],
'image' => $fields['image']
];
// Insert data in the 'articles' table
$query = Article::create($form_data);
if ($query) {
return redirect()->route('dashboard.articles')->with('success', 'Article added');
} else {
return redirect()->back()->with('error', 'Adding article failed');
}
}
}