标签: custom-validators

我有以下型号:

class Evaluation < ActiveRecord::Base
    attr_accessible :product_id, :description, :evaluation_institutions_attributes

    has_many :evaluation_institutions, :dependent => :destroy  
    accepts_nested_attributes_for :evaluation_institutions, :reject_if => lambda { |a| a[:token].blank? }, :allow_destroy => true       

    validate :requires_at_least_one_institution

    private

      def requires_at_least_one_institution
        if evaluation_institution_ids.nil? || evaluation_institution_ids.length == 0
          errors.add_to_base("Please select at least one institution")
        end
      end    
end

class EvaluationInstitution < ActiveRecord::Base

  attr_accessible :evaluation_institution_departments_attributes, :institution_id

  belongs_to :evaluation

  has_many :evaluation_institution_departments, :dependent => :destroy  
  accepts_nested_attributes_for :evaluation_institution_departments, :reject_if => lambda { |a| a[:department_id].blank? }, :allow_destroy => true

  validate :requires_at_least_one_department

  private

    def requires_at_least_one_department
       if evaluation_institution_departments.nil? || …

我为我所包含的代码量道歉.我试图将它保持在最低限度.

我正在尝试在我的模型上使用自定义验证器属性以及自定义模型绑定器.属性和Binder分开工作很好,但如果我同时使用,则验证属性不再有效.

这是我的代码剪切的可读性.如果我省略了global.asax中的代码,则会启动自定义验证,但如果我启用了自定义绑定,则不会触发.

验证属性;

public class IsPhoneNumberAttribute : ValidationAttribute
{
    public override bool IsValid(object value)
    {
        //do some checking on 'value' here
        return true;
    }
}

在我的模型中使用属性;

    [Required(ErrorMessage = "Please provide a contact number")]
    [IsPhoneNumberAttribute(ErrorMessage = "Not a valid phone number")]
    public string Phone { get; set; }

定制模型粘合剂;

public class CustomContactUsBinder : DefaultModelBinder
{
    protected override void OnModelUpdated(ControllerContext controllerContext, ModelBindingContext bindingContext)
    {
        ContactFormViewModel contactFormViewModel = bindingContext.Model as ContactFormViewModel;

        if (!String.IsNullOrEmpty(contactFormViewModel.Phone))
            if (contactFormViewModel.Phone.Length > 10)
                bindingContext.ModelState.AddModelError("Phone", "Phone is too long."); …

我正在尝试实现自定义属性验证,类似于ScottGu的博客中所示:http: //weblogs.asp.net/scottgu/archive/2010/01/15/asp-net-mvc-2-model-validation. ASPX

我有这个电子邮件的自定义验证器属性:

public class EmailAttribute : RegularExpressionAttribute
      {
      public EmailAttribute() :
                base("^[A-Za-z0-9](([_\\.\\-]?[a-zA-Z0-9]+)*)@([A-Za-z0-9]+)(([\\.\\-]?[a-zA-Z0-9]+)*)\\.([A-Za-z]{2,})$") { }
      }

我的班级使用它像这样:

    [Required(ErrorMessage = ValidationCiM.MsgObaveznoPolje)]
    [Email(ErrorMessage = ValidationCiM.MsgMailNeispravan)]
    [StringLength(ValidationCiM.LenSrednjePolje, ErrorMessage = ValidationCiM.MsgSrednjePolje)]
    public string Mail { get; set; }

它在服务器端运行良好,模型验证正常,以及一切.但客户端验证不会为此激活第二个属性,它适用于Required,它也适用于StringLength但不适用于电子邮件.我试过包括jquery和Microsoft ajax脚本,但似乎没有区别.

在ScottGu的博客中,他声明如果像这样实现的自定义验证应该可以在不需要添加自定义脚本的情况下工作.

有什么想法吗？

我是Web2py的新手,我正在尝试使用自定义验证器.

class IS_NOT_EMPTY_IF_OTHER(Validator):

    def __init__(self, other,
                 error_message='must be filled because other value '
                               'is present'):
        self.other = other
        self.error_message = error_message

    def __call__(self, value):
        if isinstance(self.other, (list, tuple)):
            others = self.other
        else:
            others = [self.other]

        has_other = False
        for other in others:
            other, empty = is_empty(other)
            if not empty:
                has_other = True
                break
        value, empty = is_empty(value)
        if empty and has_other:
            return (value, T(self.error_message))
        else:
            return (value, None)

我不明白如何在我的桌子上使用它:

db.define_table('numbers',

    Field('a', 'integer'),
    Field('b', 'boolean'),
    Field('c', 'integer')

我想以这样一种方式使用它,当'b'被勾选时'c'不能留黑.

我正在为 Angular 5 中的反应形式开发一个验证器，并且在设置基于另一个输入的值的验证器时遇到困难。

表格看起来像这样：

let myRules = new FormArray([]);
myRules.push(this.newRuleFormGroup(1, 'period', 1));

this.myForm = new FormGroup({
      'name': new FormControl(name, [Validators.required, this.validate_usedName.bind(this)]), // V: must not exist already
      'icon': new FormControl(icon, [Validators.required]), // has default
      'rules': myRules
    })

'rules' 是 a FormArray，我FormGroup使用以下命令从模板中推送 new ：

newRuleFormGroup = (amount: number, period: string, repAmount: number = 1) => {
    return new FormGroup({
      'amount': new FormControl(amount, [Validators.required]),
      'type': new FormControl(period, [Validators.required]),
      'repAmount': new FormControl(repAmount, [this.validate_repAmount.bind(this)])
    })
  }

repAmount仅当 时才需要type …

我有两个TextBox控制开始日期和结束日期输入.我必须验证结束日期不大于开始日期,开始日期和结束日期之间的差异不超过12个月.

我们可以在这里阅读如何写:

http://framework.zend.com/manual/en/zend.validate.writing_validators.html

class MyValid_Float extends Zend_Validate_Abstract
{

1) 我们应该把它放在哪里？

应用/默认/验证器？application/view/helpers/...？

2) 我们是否必须在我们的申请表上注册？

更新: 这是我的bootstrap的一个例子:

include_once 'config_root.php';
set_include_path ( $PATH );

require_once 'Initializer.php';
require_once "Zend/Loader.php";
require_once 'Zend/Loader/Autoloader.php';

// Set up autoload.
$loader = Zend_Loader_Autoloader::getInstance ();
$loader->setFallbackAutoloader ( true );
$loader->suppressNotFoundWarnings ( false );

// Prepare the front controller.
$frontController = Zend_Controller_Front::getInstance ();
$frontController->throwExceptions(true);
$frontController->registerPlugin ( new Initializer ( PROJECT_ENV ) );

// Dispatch the request using the front controller.
try {
    $frontController->dispatch ();

} catch ( Exception $exp ) {
    $contentType …

我按照以下Symfony2食谱教程,但我一直收到错误

constraint myContraintClass cannot be put on properties or getters

在validation.yml我有

Core\Entity\Activity:
  properties:
    maxTotalParticipant:
      - Application\ActivityBundle\Validator\ActivityMaxTotalParticipant: ~

这是我的约束

<?php
namespace Application\ActivityBundle\Validator;
use Symfony\Component\Validator\Constraint;
/**
 * @Annotation
 */
class ActivityMaxTotalParticipant extends Constraint
{
  public $message = 'trigger error';

  public function validatedBy() {
    return 'activity_max_total_participant_validator';
  }

  public function getTargets() {
    return self::CLASS_CONSTRAINT;
  }

  public function getMessage() {
    return $this->message;
  }
}

和我的约束验证器

<?php 
 namespace Application\ActivityBundle\Validator;
 use Symfony\Component\Validator\ExecutionContext;
 use Symfony\Bundle\DoctrineBundle\Registry;
 use myApp\Core\Entity\Activity;
 use Symfony\Component\Validator\Constraint;
 use Symfony\Component\Validator\ConstraintValidator;
 use Symfony\Component\Translation\Translator;
 use Symfony\Component\Translation;

 class …

我使用了自定义验证.但它不起作用.这是我的模特

class Manufacture extends \yii\db\ActiveRecord
{
public function rules()
    {
        return [
             [['model_no'], 'safe'],
             ['model_no', 'customValidation', 'skipOnEmpty' => false, 'skipOnError' => false],
          ];
    }

    public function customValidation($attribute, $params)
    {

       if($this->model_no=='test')
        {
         $this->addError($attribute,'add proper data.');
        }
    }

}

在控制器中

public function actionCreate()
    {
        if ($model->load(Yii::$app->request->post())) {
              if ($model->validate()) { 
                //some code
             }
        }
}

这里我在安全中添加了属性,但我的错误仍然没有在视图中显示.

我将Rails 4与Rails-i18n Gem一起使用,我想用我的语言翻译文件中的占位符替换我的硬编码字符串"300px",如config/locales/de.yml中的%{minimum_resolution}

  activerecord:
    errors:
      models:
        organisation:
          attributes:
            image:                 
              resolution_too_small:"Image Resolution should be at least %{minimum_resolution}"

%{minimum_resolution}中的值应来自app/models/organisation.rb中的自定义验证

  def validate_minimum_image_dimensions
    if image.present?
      logo = MiniMagick::Image.open(image.path)
      minimum_resolution = 300
      unless logo[:width] > minimum_resolution || logo[:height] > minimum_resolution
        errors.add :image, :minimum_image_size
      end
    else
      return false
    end
  end

如何从minimum_resolution获取值到我的yaml文件中？