Question

我有一个用于Group和Member的MySQL数据库。当我要在Group模型中插入任何记录时，一切都很好，但是当我要在Member模型中插入任何数据时，它显示的错误就像这样

CDbCommand failed to execute the SQL statement: SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails (`tbl_groupapp`.`tbl_member`, CONSTRAINT `FK_member_group` FOREIGN KEY (`group_id`) REFERENCES `tbl_group` (`id`) ON DELETE CASCADE). The SQL statement executed was: INSERT INTO `tbl_member` (`firstname`, `lastname`, `gender`, `membersince`) VALUES (:yp0, :yp1, :yp2, :yp3)

我不知道为什么会发生这种情况。这是我的数据库架构

--
-- Table structure for table `tbl_group`
--

CREATE TABLE IF NOT EXISTS `tbl_group` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(80) COLLATE utf8_unicode_ci NOT NULL DEFAULT '',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB  DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=53 ;

--
-- Dumping data for table `tbl_group`
--

INSERT INTO `tbl_group` (`id`, `name`) VALUES
(37, 'Test Group'),
(38, 'bdbsdsb'),
(39, 'ruieryei'),
(40, 'dbshdbs'),
(41, 'dbshdbs'),
(42, 'dbshdbs'),
(43, 'dbshdbs'),
(44, 'dbshdbs'),
(45, 'dbshdbs'),
(46, 'dbshdbs'),
(47, 'dbshdbs'),
(48, 'dbshdbs'),
(49, 'dbshdbs'),
(50, 'group name'),
(51, 'group name'),
(52, 'dbshdbs');

-- --------------------------------------------------------

--
-- Table structure for table `tbl_member`
--

CREATE TABLE IF NOT EXISTS `tbl_member` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `group_id` int(11) NOT NULL,
  `firstname` varchar(80) COLLATE utf8_unicode_ci NOT NULL DEFAULT '',
  `lastname` varchar(80) COLLATE utf8_unicode_ci NOT NULL DEFAULT '',
  `gender` varchar(10) COLLATE utf8_unicode_ci NOT NULL DEFAULT '',
  `membersince` datetime NOT NULL,
  PRIMARY KEY (`id`),
  KEY `FK_member_group` (`group_id`)
) ENGINE=InnoDB  DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=52 ;

--
-- Dumping data for table `tbl_member`
--

INSERT INTO `tbl_member` (`id`, `group_id`, `firstname`, `lastname`, `gender`, `membersince`) VALUES
(31, 37, 'First Name', 'Second Name', 'male', '2012-02-22 00:00:00'),
(32, 38, 'dsadsmadnas', 'jieo/uwoe', 'female', '2012-02-16 00:00:00'),
(33, 39, 'rerhejrgejh', 'nmbfdnfb,d', 'male', '2012-02-23 00:00:00'),
(34, 40, 'test group', 'test group', '', '0000-00-00 00:00:00'),
(35, 41, 'test group1', 'test group2', '', '0000-00-00 00:00:00'),
(36, 42, 'test group1', 'test group2', '', '0000-00-00 00:00:00'),
(37, 43, 'test group', 'test group2', '', '0000-00-00 00:00:00'),
(38, 44, 'test group1', 'test group2', '', '0000-00-00 00:00:00'),
(39, 45, 'test group', 'test group2', '', '0000-00-00 00:00:00'),
(40, 46, 'test group', 'test group2', '', '0000-00-00 00:00:00'),
(41, 47, 'test group1', 'test group2', 'male', '0000-00-00 00:00:00'),
(42, 48, 'test group1', 'test group2', 'm', '0000-00-00 00:00:00'),
(43, 49, 'test group1', 'test group2', 'Male', '0000-00-00 00:00:00'),
(44, 50, 'firstname ', 'secondname', 'Male', '0000-00-00 00:00:00'),
(45, 51, 'test group', 'test group', 'Male', '2012-02-28 00:00:00'),
(46, 52, 'test group', 'test group2', 'Male', '2012-02-15 00:00:00');

-- --------------------------------------------------------

--
-- Constraints for table `tbl_member`
--
ALTER TABLE `tbl_member`
  ADD CONSTRAINT `FK_member_group` FOREIGN KEY (`group_id`) REFERENCES `tbl_group` (`id`) ON DELETE CASCADE;

任何帮助和建议都会非常值得注意。这是成员

的表单文件

<div class="form">

<?php $form=$this->beginWidget('CActiveForm', array(
  'id'=>'member-form',
  'enableAjaxValidation'=>false,
)); ?>

  <p class="note">Fields with <span class="required">*</span> are required.</p>

  <?php echo $form->errorSummary($model); ?>

  <div class="row">
    <?php echo $form->labelEx($model,'group_id'); ?>
    <?php echo $form->textField($model,'group_id'); ?>
    <?php echo $form->error($model,'group_id'); ?>
  </div>

  <div class="row">
    <?php echo $form->labelEx($model,'firstname'); ?>
    <?php echo $form->textField($model,'firstname',array('size'=>60,'maxlength'=>80)); ?>
    <?php echo $form->error($model,'firstname'); ?>
  </div>

  <div class="row">
    <?php echo $form->labelEx($model,'lastname'); ?>
    <?php echo $form->textField($model,'lastname',array('size'=>60,'maxlength'=>80)); ?>
    <?php echo $form->error($model,'lastname'); ?>
  </div>

  <div class="row">
    <?php echo $form->labelEx($model,'gender'); ?>
    <?php echo $form->textField($model,'gender',array('size'=>10,'maxlength'=>10)); ?>
    <?php echo $form->error($model,'gender'); ?>
  </div>

  <div class="row">
    <?php echo $form->labelEx($model,'membersince'); ?>
    <?php echo $form->textField($model,'membersince'); ?>
    <?php echo $form->error($model,'membersince'); ?>
  </div>

  <div class="row buttons">
    <?php echo CHtml::submitButton($model->isNewRecord ? 'Create' : 'Save'); ?>
  </div>

<?php $this->endWidget(); ?>

</div><!-- form -->

成员控制代码

<?php

class MemberController extends Controller
{
  /**
   * @var string the default layout for the views. Defaults to '//layouts/column2', meaning
   * using two-column layout. See 'protected/views/layouts/column2.php'.
   */
  public $layout='//layouts/column2';

  /**
   * @return array action filters
   */
  public function filters()
  {
    return array(
      'accessControl', // perform access control for CRUD operations
    );
  }

  /**
   * Specifies the access control rules.
   * This method is used by the 'accessControl' filter.
   * @return array access control rules
   */
  public function accessRules()
  {
    return array(
      array('allow',  // allow all users to perform 'index' and 'view' actions
        'actions'=>array('index','view'),
        'users'=>array('*'),
      ),
      array('allow', // allow authenticated user to perform 'create' and 'update' actions
        'actions'=>array('create','update'),
        'users'=>array('@'),
      ),
      array('allow', // allow admin user to perform 'admin' and 'delete' actions
        'actions'=>array('admin','delete'),
        'users'=>array('admin'),
      ),
      array('deny',  // deny all users
        'users'=>array('*'),
      ),
    );
  }

  /**
   * Displays a particular model.
   * @param integer $id the ID of the model to be displayed
   */
  public function actionView($id)
  {
    $this->render('view',array(
      'model'=>$this->loadModel($id),
    ));
  }

  /**
   * Creates a new model.
   * If creation is successful, the browser will be redirected to the 'view' page.
   */
  public function actionCreate()
  {
    $model=new Member;

    // Uncomment the following line if AJAX validation is needed
    // $this->performAjaxValidation($model);

    if(isset($_POST['Member']))
    {
      $model->attributes=$_POST['Member'];
      if($model->save())
        $this->redirect(array('view','id'=>$model->id));
    }

    $this->render('create',array(
      'model'=>$model,
    ));
  }

  /**
   * Updates a particular model.
   * If update is successful, the browser will be redirected to the 'view' page.
   * @param integer $id the ID of the model to be updated
   */
  public function actionUpdate($id)
  {
    $model=$this->loadModel($id);

    // Uncomment the following line if AJAX validation is needed
    // $this->performAjaxValidation($model);

    if(isset($_POST['Member']))
    {
      $model->attributes=$_POST['Member'];
      if($model->save())
        $this->redirect(array('view','id'=>$model->id));
    }

    $this->render('update',array(
      'model'=>$model,
    ));
  }

  /**
   * Deletes a particular model.
   * If deletion is successful, the browser will be redirected to the 'admin' page.
   * @param integer $id the ID of the model to be deleted
   */
  public function actionDelete($id)
  {
    if(Yii::app()->request->isPostRequest)
    {
      // we only allow deletion via POST request
      $this->loadModel($id)->delete();

      // if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
      if(!isset($_GET['ajax']))
        $this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
    }
    else
      throw new CHttpException(400,'Invalid request. Please do not repeat this request again.');
  }

  /**
   * Lists all models.
   */
  public function actionIndex()
  {
    $dataProvider=new CActiveDataProvider('Member');
    $this->render('index',array(
      'dataProvider'=>$dataProvider,
    ));
  }

  /**
   * Manages all models.
   */
  public function actionAdmin()
  {
    $model=new Member('search');
    $model->unsetAttributes();  // clear any default values
    if(isset($_GET['Member']))
      $model->attributes=$_GET['Member'];

    $this->render('admin',array(
      'model'=>$model,
    ));
  }

  /**
   * Returns the data model based on the primary key given in the GET variable.
   * If the data model is not found, an HTTP exception will be raised.
   * @param integer the ID of the model to be loaded
   */
  public function loadModel($id)
  {
    $model=Member::model()->findByPk($id);
    if($model===null)
      throw new CHttpException(404,'The requested page does not exist.');
    return $model;
  }

  /**
   * Performs the AJAX validation.
   * @param CModel the model to be validated
   */
  protected function performAjaxValidation($model)
  {
    if(isset($_POST['ajax']) && $_POST['ajax']==='member-form')
    {
      echo CActiveForm::validate($model);
      Yii::app()->end();
    }
  }
}

Answer 1

您似乎错过了将外键组ID 插入到您正在获取的错误中的表格，如下所示：

执行的SQL语句是：INSERT INTO tbl_member（firstname，lastname，gender，membersince）VALUES（：yp0，：yp1，： yp2，：yp3）

基本上你也必须插入group_id，所以也要将group_id输入字段添加到成员模型的表单中。

Lemme知道您是否需要更多帮助。

插入后，MySQL中的CDbCommand失败错误

1 个答案: