你使用的是什么版本的 Laravel？如果您使用的是Laravel 5.2，或者您不介意更新到它，那么有一个开箱即用的解决方案。
数组验证
在 Laravel 5.2 中验证数组表单输入字段要容易得多。为了
例如，验证给定数组输入字段中的每封电子邮件是
独一无二，您可以执行以下操作：
$validator = Validator::make($request->all(), [
'person.*.email' => 'email|unique:users'
]);
同样，您可以在指定验证时使用 * 字符
语言文件中的消息，使使用单一语言变得轻而易举
基于数组的字段的验证消息：
'custom' => [
'person.*.email' => [
'unique' => 'Each person must have a unique e-mail address',
]
],
来自Laravel news的另一个例子：
假设您有一个包含如下输入字段数组的表单：
<p>
<input type="text" name="person[1][id]">
<input type="text" name="person[1][name]">
</p>
<p>
<input type="text" name="person[2][id]">
<input type="text" name="person[2][name]">
</p>
在 Laravel 5.1 中添加验证规则需要循环和
单独添加规则。而不是必须做所有的事情
被“Laravelized”成这样：
$v = Validator::make($request->all(), [
'person.*.id' => 'exists:users.id',
'person.*.name' => 'required:string',
]);
因此，如果您不想使用 Laravel 5.2，则必须手动进行，如果您确实更新到 Laravel 5.2，则可以使用新的数组验证，它会是这样的：
protected $rules = [
ValidatorInterface::RULE_CREATE => [
'users_id' => 'required',
'user_profiles_id' => 'required',
'categories_id' => 'required',
'product_name' => 'required|max:100',
'product_description' => 'required|max:1000',
'tags' => 'required',
'image_count'=>'required|integer',
'creation_mode'=>'required|integer',
'skus.*.is_shippable'=>'in:y,n',
'skus.*.actual_price'=>'regex:/^\s*(?=.*[1-9])\d*(?:\.\d{1,2})?\s*$/',
'skus.*.selling_price' => 'regex:/^\s*(?=.*[1-9])\d*(?:\.\d{1,2})?\s*$/',
'skus.*.quantity_type' => 'sometimes|required|in:finite,infinite,bucket',
'skus.*.quantity_total' => 'integer|required_if:skus.quantity_type,finite',
'skus.*.bucket_value'=>'in:instock,soldout,limited|required_if:skus.quantity_type,bucket',
'skus.*.sort_order'=> 'required|integer'
],
ValidatorInterface::RULE_UPDATE => [
]
];
编辑
Ihmo 添加此额外验证逻辑的最佳方法是扩展 Validator 类创建您的 CustomValidator 类，这可能有点矫枉过正，但当 Laravel 5.2 发布时您可以删除您的 CustomValidator 并继续使用 Laravel 的 5.2 Validator，而无需对您的代码进行任何更改。
怎么样？首先我们在app/ 下创建一个文件夹，我决定将这个文件夹命名为Validator，你可以随意命名，只要记住更新以下类的命名空间即可。接下来我们将在这个文件夹中创建 3 个 .php 文件 CustomValidator.php、CustomValidatorServiceProvider.php 和 Factory.php。
CustomValidator.php
<?php
namespace App\Validator;
use Illuminate\Support\Arr;
use Illuminate\Support\Str;
use Illuminate\Validation\Validator;
use Symfony\Component\Translation\TranslatorInterface;
class CustomValidator extends Validator
{
/**
* Create a new Validator instance.
*
* @param \Symfony\Component\Translation\TranslatorInterface $translator
* @param array $data
* @param array $rules
* @param array $messages
* @param array $customAttributes
* @return void
*/
public function __construct(TranslatorInterface $translator, array $data, array $rules, array $messages = [], array $customAttributes = [])
{
$this->translator = $translator;
$this->customMessages = $messages;
$this->data = $this->parseData($data);
$this->customAttributes = $customAttributes;
// Explode the rules first so that the implicit ->each calls are made...
$rules = $this->explodeRules($rules);
$this->rules = array_merge((array) $this->rules, $rules);
}
/**
* Explode the rules into an array of rules.
*
* @param string|array $rules
* @return array
*/
protected function explodeRules($rules)
{
foreach ($rules as $key => $rule) {
if (Str::contains($key, '*')) {
$this->each($key, $rule);
unset($rules[$key]);
} else {
$rules[$key] = (is_string($rule)) ? explode('|', $rule) : $rule;
}
}
return $rules;
}
/**
* Define a set of rules that apply to each element in an array attribute.
*
* @param string $attribute
* @param string|array $rules
* @return void
*
* @throws \InvalidArgumentException
*/
public function each($attribute, $rules)
{
$data = Arr::dot($this->data);
foreach ($data as $key => $value) {
if (Str::startsWith($key, $attribute) || Str::is($attribute, $key)) {
foreach ((array) $rules as $ruleKey => $ruleValue) {
if (! is_string($ruleKey) || Str::endsWith($key, $ruleKey)) {
$this->mergeRules($key, $ruleValue);
}
}
}
}
}
/**
* Get the inline message for a rule if it exists.
*
* @param string $attribute
* @param string $lowerRule
* @param array $source
* @return string|null
*/
protected function getInlineMessage($attribute, $lowerRule, $source = null)
{
$source = $source ?: $this->customMessages;
$keys = ["{$attribute}.{$lowerRule}", $lowerRule];
// First we will check for a custom message for an attribute specific rule
// message for the fields, then we will check for a general custom line
// that is not attribute specific. If we find either we'll return it.
foreach ($keys as $key) {
foreach (array_keys($source) as $sourceKey) {
if (Str::is($sourceKey, $key)) {
return $source[$sourceKey];
}
}
}
}
/**
* Get the custom error message from translator.
*
* @param string $customKey
* @return string
*/
protected function getCustomMessageFromTranslator($customKey)
{
$shortKey = str_replace('validation.custom.', '', $customKey);
$customMessages = Arr::dot(
(array) $this->translator->trans('validation.custom')
);
foreach ($customMessages as $key => $message) {
if ($key === $shortKey || (Str::contains($key, ['*']) && Str::is($key, $shortKey))) {
return $message;
}
}
return $customKey;
}
}
此自定义验证器包含在 Laravel 5.2 上所做的所有更改，您可以在 here 中查看它们
现在我们有了一个新的 CustomValidator 类，我们必须找到一种使用它的方法，为此我们必须扩展 ValidatorServiceProvider 和 Validator factory。 p>
CustomValidatorServiceProvider.php
<?php
namespace App\Validator;
class CustomValidatorServiceProvider extends \Illuminate\Validation\ValidationServiceProvider
{
/**
* Register the validation factory.
*
* @return void
*/
protected function registerValidationFactory()
{
$this->app->singleton('validator', function ($app) {
$validator = new Factory($app['translator'], $app);
// The validation presence verifier is responsible for determining the existence
// of values in a given data collection, typically a relational database or
// other persistent data stores. And it is used to check for uniqueness.
if (isset($app['validation.presence'])) {
$validator->setPresenceVerifier($app['validation.presence']);
}
return $validator;
});
}
}
Factory.php
<?php
namespace App\Validator;
use App\Validator\CustomValidator as Validator;
class Factory extends \Illuminate\Validation\Factory
{
/**
* Resolve a new Validator instance.
*
* @param array $data
* @param array $rules
* @param array $messages
* @param array $customAttributes
* @return App\Test\CustomValidator
*/
protected function resolve(array $data, array $rules, array $messages, array $customAttributes)
{
if (is_null($this->resolver)) {
return new Validator($this->translator, $data, $rules, $messages, $customAttributes);
}
return call_user_func($this->resolver, $this->translator, $data, $rules, $messages, $customAttributes);
}
}
现在我们已经扩展了验证以支持嵌套语法sku.*.id
我们只需要将 Validator 替换为 CustomValidator，最后一步是更改文件 config/app.php 并在 ServiceProviders 数组中查找 ValidatorServiceProvider ，只需注释该行并添加我们的扩展服务提供商，如下所示：
....
// Illuminate\Validation\ValidationServiceProvider::class,
App\Validator\CustomValidatorServiceProvider::class,
....
我们将其注释掉的原因是，每当您将 Laravel 5.1 更新到 5.2 时，您只想取消注释，从列表中删除我们的 CustomValidatorServiceProvider，然后删除我们的 app/Validator 文件夹，因为我们不再需要它了.