Подтвердить уникальное значение из базы данных в Yii2

Question

Я пытаюсь проверить значение электронной почты как уникальное значение. Делать это так.

[['HRMS_candidateEmail'],'unique'], 

Но он не работает, вставленный оператор use yii\validators\UniqueValidator; после этого link

Модель

<?php 
namespace app\models; 
use Yii; 
use yii\validators\UniqueValidator; 


class Candidate extends \yii\db\ActiveRecord 
{ 
/** 
* @inheritdoc 
*/ 
public static function tableName() 
{ 
    return 'HRMS_candidate'; 
} 

/** 
* @inheritdoc 
*/ 
public function rules() 
{ 
    return [ 
     [['HRMS_candidateEmail'],'unique'], 
     [['HRMS_candidateFirstName', 'HRMS_candidateLastName', 'HRMS_candidateEmail', 'HRMS_candidateMobileNo', 'HRMS_candidateLocalAddress', 'HRMS_candidatePermanantAddress', 'HRMS_candidateGender', 'HRMS_candidateDateOfBirth', 
      'HRMS_candidateMaritalStatus', 'HRMS_candidaterRefType', 'HRMS_candidateStatus', 'HRMS_candidateCurrentSalary', 'HRMS_candidateExpectedSalary', 'HRMS_candidateNoticePeriodBuyOut', 'HRMS_candidateCountry', 'HRMS_candidateCity', 
      'HRMS_candidatePrimarySkills', 'HRMS_candidateWillingToRelocate','HRMS_candidateExpYears','HRMS_candidateExpMonths','HRMS_candidateHrId','HRMS_candidateNoticePeriod','HRMS_candidateResumeSource', 
      'HRMS_candidateTrack','HRMS_candidateDepartment','HRMS_candidateNoOfChildren'], 'required'], 
     [['HRMS_candidateGender', 'HRMS_candidateBloodGroup', 'HRMS_candidateMaritalStatus', 'HRMS_candidaterRefType', 'HRMS_candidateStatus'], 'string'], 
     [['HRMS_candidateDateOfBirth', 'HRMS_candidateCreatedAt', 'HRMS_candidateUpdatedAt'], 'safe'], 
     [['HRMS_candidateTokenNo', 'HRMS_candidateNoticePeriodBuyOut', 'HRMS_candidateExpYears','HRMS_candidateExpMonths', 'HRMS_candidateNoOfChildren','HRMS_candidateMobileNo','HRMS_candidateAlternateNo','HRMS_candidateAdharNumber','HRMS_candidateNoticePeriod'], 'integer'], 
     [['HRMS_candidateFirstName', 'HRMS_candidateMiddleName', 'HRMS_candidateLastName', 'HRMS_candidateCurrentSalary', 'HRMS_candidateExpectedSalary'], 'string', 'max' => 50], 
     [['HRMS_candidateEmail', 'HRMS_candidateAlternateEmail'], 'string', 'max' => 150], 
     [['HRMS_candidateMobileNo', 'HRMS_candidateAlternateNo', 'HRMS_candidatePanNumber', 'HRMS_candidateAdharNumber'], 'string', 'max' => 25], 
     [['HRMS_candidateLocalAddress', 'HRMS_candidatePermanantAddress'], 'string', 'max' => 500], 
     [['HRMS_candidateNoticePeriod'], 'string', 'max' => 10], 
     [['HRMS_candidatePrimarySkills'], 'string', 'max' => 300], 
     [['HRMS_candidateEmail','HRMS_candidateAlternateEmail'], 'email'],    
     [['HRMS_candidateFirstName','HRMS_candidateMiddleName','HRMS_candidateLastName'], 'match', 'pattern' => '/^[a-zA-Z]+$/', 'message' => 'Please enter alphabets only.'], 
     [['HRMS_candidatePanNumber'], 'match', 'pattern' => '/^[a-zA-Z0-9]+$/', 'message' => 'Please enter alphanumric charachters only.'], 
     [['HRMS_candidatePassportNo','HRMS_candidateCountry','HRMS_candidateCity'], 'match', 'pattern' => '/^[a-zA-Z0-9-_@ ]+$/', 'message' => 'Please enter alphanumric charachters only.'], 
     [['HRMS_candidateLocalAddress','HRMS_candidatePermanantAddress'], 'match', 'pattern' => '/^[a-zA-Z0-9-_@.,: ]+$/', 'message' => 'Please enter valid address.'], 
     [['HRMS_candidatePrimarySkills'], 'match', 'pattern' => '/^[a-zA-Z0-9-_@.#+&*, ]+$/', 'message' => 'Please enter valid skills.'], 
     [['HRMS_candidateAlternateEmail'], 'compare', 'compareAttribute' => 'HRMS_candidateEmail','operator'=>'!='], 
     [['HRMS_candidateAlternateNo'], 'compare', 'compareAttribute' => 'HRMS_candidateMobileNo','operator'=>'!='], 

    ]; 
} 

/** 
* @inheritdoc 
*/ 
public function attributeLabels() 
{ 
    return [ 
     'HRMS_candidateID' => 'ID', 
     'HRMS_candidateReferralID' => 'Referral ID', 
     'HRMS_candidateFirstName' => 'First Name', 
     'HRMS_candidateMiddleName' => 'Middle Name', 
     'HRMS_candidateLastName' => 'Last Name', 
     'HRMS_candidateEmail' => 'E-mail Id', 
     'HRMS_candidateAlternateEmail' => 'Alternate E-mail Id', 
     'HRMS_candidateMobileNo' => 'Mobile No', 
     'HRMS_candidateAlternateNo' => 'Alternate No', 
     'HRMS_candidateLocalAddress' => 'Current Address', 
     'HRMS_candidatePermanantAddress' => 'Permanant Address', 
     'HRMS_candidatePanNumber' => 'Pan Number', 
     'HRMS_candidateAdharNumber' => 'Adhar Number', 
     'HRMS_candidateGender' => 'Gender', 
     'HRMS_candidateDateOfBirth' => 'Date Of Birth', 
     'HRMS_candidateBloodGroup' => 'Blood Group', 
     'HRMS_candidateMaritalStatus' => 'Marital Status', 
     'HRMS_candidateNoOfChildren' => 'No Of Children', 
     'HRMS_candidaterRefType' => 'Reference Type', 
     'HRMS_candidateStatus' => 'Status', 
     'HRMS_candidateTokenNo' => 'Token No', 
     'HRMS_candidateRolesResponsibility' => 'Roles Responsibility', 
     'HRMS_candidateTokenExpiryDate' => 'Token Expiry Date', 
     'HRMS_candidateTokenGenerationDate' => 'Token Generation Date', 
     'HRMS_candidateCurrentSalary' => 'Current Salary', 
     'HRMS_candidateExpectedSalary' => 'Expected Salary', 
     'HRMS_candidateNoticePeriod' => 'Notice Period', 
     'HRMS_candidateNoticePeriodBuyOut' => 'Notice Period Buy Out', 
     'HRMS_candidatePassportNo' => 'Passport No', 
     'HRMS_candidateCountry' => 'Current Country', 
     'HRMS_candidateCity' => 'Current City', 
     'HRMS_candidatePrimarySkills' => 'Primary Skills', 
     'HRMS_candidateExpYears' => 'Exp Years', 
     'HRMS_candidateExpMonths'=> 'Exp Months', 
     'HRMS_candidateWillingToRelocate' => 'Willing To Relocate', 
     'HRMS_candidateDriveId' => 'Drive ID', 
     'HRMS_candidateHrId' => 'HR Name', 
     'HRMS_candidateCreatedAt' => 'Created At', 
     'HRMS_candidateUpdatedAt' => 'Updated At', 
     'HRMS_candidateResumeSource'=> 'Resume Source', 
     'HRMS_candidateTrack'=>'Track', 
     'HRMS_candidateDepartment'=>'Department', 
     'HRMS_candidateVacancyId'=>'Vacancy' 
    ]; 
} 

/** 
* @return \yii\db\ActiveQuery 
*/ 


/** 
* @return \yii\db\ActiveQuery 
*/ 
public function getHRMSCandidateEducations() 
{ 
    return $this->hasMany(HRMSCandidateEducation::className(), ['HRMS_candidateEducationCandidateID' => 'HRMS_candidateID']); 
} 

/** 
* @return \yii\db\ActiveQuery 
*/ 
public function getHRMSCandidateNotes() 
{ 
    return $this->hasMany(HRMSCandidateNote::className(), ['HRMS_candidateNoteCandidateId' => 'HRMS_candidateID']); 
} 

/** 
* @return \yii\db\ActiveQuery 
*/ 
public function getHRMSCandidatePreviousEmployments() 
{ 
    return $this->hasMany(HRMSCandidatePreviousEmployment::className(), ['HRMS_candidatePreviousEmploymentcandidateID' => 'HRMS_candidateID']); 
} 

/** 
* @return \yii\db\ActiveQuery 
*/ 
public function getHRMSFeedbacks() 
{ 
    return $this->hasMany(HRMSFeedback::className(), ['HRMS_feedbackCandidateID' => 'HRMS_candidateID']); 
} 

/** 
* @return \yii\db\ActiveQuery 
*/ 
public function getHRMSInterviewSchedules() 
{ 
    return $this->hasMany(HRMSInterviewSchedule::className(), ['HRMS_interviewScheduleCandidateID' => 'HRMS_candidateID']); 
} 

/** 
* @return \yii\db\ActiveQuery 
*/ 
public function getHRMSVacancyCandidates() 
{ 
    return $this->hasMany(HRMSVacancyCandidate::className(), ['HRMS_vacancyCandidateCandiateID' => 'HRMS_candidateID']); 
} 

public static function getFull_Name() 
    { 
      return $this->HRMS_candidateFirstName . ' ' . $this->HRMS_candidateLastName; 
    } 
} 

вид

<?= $form->field($model, 'HRMS_candidateEmail')->textInput(['maxlength' => true,'class'=>'form-control input-sm','placeholder'=>'Enter email of candidate']) ?> 

Answer 1

Я принимаю ваш взгляд, как register.php. Так,

register.php (View)

1) Удалить use yii\bootstrap\ActiveForm; (если таковой имеется)

2) Добавить use yii\widgets\ActiveForm;

3) Добавить 'enableAjaxValidation' => true в этой области (где вы проверки это как показано ниже)

<?= $form->field($model, 'HRMS_candidateEmail',['enableAjaxValidation' => true])->textInput(['maxlength' => true,'class'=>'form-control input-sm','placeholder'=>'Enter email of candidate']) ?> 

Контр. Oller
Добавьте эти строки в верхней use yii\web\Response;use yii\widgets\ActiveForm;

use yii\web\Response; 
use yii\widgets\ActiveForm; 

    . 
    . 
    . 
    public function actionRegister() { 

     $model = new Candidate(); 

     //Add This For Ajax Email Exist Validation 
     if(Yii::$app->request->isAjax && $model->load(Yii::$app->request->post())){ 
      Yii::$app->response->format = Response::FORMAT_JSON; 
      return ActiveForm::validate($model); 
     } 

     else if ($model->load(Yii::$app->request->post())) { 
      . 
      // Your code 
      . 
      . 
     } 
    }