【发布时间】：2018-03-11 04:39:44
【问题描述】：
在 ZF3 中，我创建了一个包含两个字段的表单：文本和 url。用户只能填写其中一项，并且必须至少填写一项。
想象一下：可以放网站的内容或网站的网址。该表单可用于从网站或文本中获取某些数据。
我准备了两个验证器类。每个输入一个。这些类从上下文参数中获取另一个类的输入值。 StringLength 验证器用于这两个字段。
这几乎可以正常工作，但是当两个字段都提交为空时，就会出现不好的问题。然后数据确实通过了验证，而它应该没有。
在此问题的情况下，字段 required 变为 false。
当我将它们切换为 true 时，两个字段都需要，但我只需要一个。
所以目标是当两个字段都为空时，验证结果将变为 false。然后应该出现唯一一条消息。我的意思是这样的消息或多或少：One of fields must be filled out. 不是“必需”消息。
这里是表单类和两个验证器类。
<?php
namespace Application\Filter;
use Application\Form\Test as Form;
use Application\Validator\Text;
use Application\Validator\Url;
use Zend\InputFilter\InputFilter;
class Test extends InputFilter
{
public function init()
{
$this->add([
'name' => Form::TEXT,
'required' => false,
'validators' => [
['name' => Text::class],
],
]);
$this->add([
'name' => Form::URL,
'required' => false,
'validators' => [
['name' => Url::class],
],
]);
}
}
<?php
namespace Application\Validator;
use Zend\Validator\StringLength;
use Zend\Validator\ValidatorInterface;
class Text implements ValidatorInterface
{
protected $stringLength;
protected $messages = [];
public function __construct()
{
$this->stringLengthValidator = new StringLength();
}
public function isValid($value, $context = null)
{
if (empty($context['url'])) {
$this->stringLengthValidator->setMin(3);
$this->stringLengthValidator->setMax(5000);
if ($this->stringLengthValidator->isValid($value)) {
return true;
}
$this->messages = $this->stringLengthValidator->getMessages();
return false;
}
if (!empty($value)) return false;
}
public function getMessages()
{
return $this->messages;
}
}
<?php
namespace Application\Validator;
use Zend\Validator\StringLength;
use Zend\Validator\ValidatorInterface;
class Url implements ValidatorInterface
{
const ERROR_NOT_ALLOWED_STRING = 'string-not-allowed';
protected $stringLength;
protected $messages = [
self::ERROR_NOT_ALLOWED_STRING => 'Only one of text and url field may by filled.',
];
public function __construct()
{
$this->stringLengthValidator = new StringLength();
}
public function isValid($value, $context = null)
{
if (empty($context['text'])) {
$this->stringLengthValidator->setMin(3);
$this->stringLengthValidator->setMax(500);
if ($this->stringLengthValidator->isValid($value)) {
return true;
}
$this->messages = $this->stringLengthValidator->getMessages();
return false;
}
if (!empty($value)) return false;
}
public function getMessages()
{
return $this->messages;
}
}
更新
我使用了来自@Crisp 的建议，并且不得不在代码中进行一些更正。添加了返回和消息处理。工作代码如下：
<?php
namespace Application\Filter;
use Application\Form\Test as Form;
use Application\Validator\Text;
use Application\Validator\Url;
use Zend\InputFilter\InputFilter;
class Test extends InputFilter
{
public function init()
{
$this->add([
'name' => Form::TEXT,
'required' => false,
'allow_empty' => true,
'continue_if_empty' => true,
'validators' => [
['name' => Text::class],
],
]);
$this->add([
'name' => Form::URL,
'required' => false,
'allow_empty' => true,
'continue_if_empty' => true,
'validators' => [
['name' => Url::class],
],
]);
}
}
<?php
namespace Application\Validator;
use Zend\Validator\StringLength;
use Zend\Validator\ValidatorInterface;
class Text implements ValidatorInterface
{
protected $stringLength;
protected $messages = [];
public function __construct()
{
$this->stringLengthValidator = new StringLength();
}
public function isValid($value, $context = null)
{
if (empty($context['url'])) {
if (empty($value)) return false;
$this->stringLengthValidator->setMin(3);
$this->stringLengthValidator->setMax(5000);
if ($this->stringLengthValidator->isValid($value)) {
return true;
}
$this->messages = $this->stringLengthValidator->getMessages();
return false;
}
if (!empty($value)) return false;
return true;
}
public function getMessages()
{
return $this->messages;
}
}
<?php
namespace Application\Validator;
use Zend\Validator\StringLength;
use Zend\Validator\ValidatorInterface;
class Url implements ValidatorInterface
{
const ERROR_NOT_ALLOWED_STRING = 'string-not-allowed';
const ERROR_EMPTY_FIELDS = 'empty-fields';
protected $stringLength;
protected $messages = [
self::ERROR_NOT_ALLOWED_STRING => 'Only one of text and url field may be filled out.',
];
public function __construct()
{
$this->stringLengthValidator = new StringLength();
}
public function isValid($value, $context = null)
{
if (empty($context['text'])) {
if (empty($value)) {
$this->messages = [
self::ERROR_EMPTY_FIELDS => 'One of the fields must be filled out.',
];
return false;
}
$this->stringLengthValidator->setMin(3);
$this->stringLengthValidator->setMax(500);
if ($this->stringLengthValidator->isValid($value)) {
return true;
}
$this->messages = $this->stringLengthValidator->getMessages();
return false;
}
if (!empty($value)) return false;
return true;
}
public function getMessages()
{
return $this->messages;
}
}
【问题讨论】：
标签： php validation filter zend-framework3