注意：在 SO 上还有其他与此相关的问题，但没有一个真正为我回答。我不担心服务器端，因为有很多方法可以处理保存相关模型信息（以及如何执行此操作的大量示例）。
我需要知道的是：如何实现视图代码以在创建父模型时添加许多子模型？
它肯定会像在这个页面上看到的那样：http ://www.yiiframework.com/doc/guide/1.1/en/form.table 。除了代码处理一堆模型的更新，而不是它们的插入。这就是我需要的。
简而言之，我有一个事件表单，用户可以在其中添加许多约会（每个约会都有一天，start_time 和 end_time）。我想使用 Yii 助手在事件表单中呈现约会字段，以便获得验证和其他框架优势。
用户将能够在创建事件时为同一事件添加多个约会。
http://scriptbaker.com/how-to-save-multiple-related-models-in-yii-complete-solution/
表结构：
CREATE TABLE IF NOT EXISTS `fathers` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` varchar(255) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;
CREATE TABLE IF NOT EXISTS `children` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`father_id` int(11) NOT NULL,
`name` varchar(255) NOT NULL,
`age` int(11) NOT NULL,
PRIMARY KEY (`id`),
KEY `father_id` (`father_id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;
ALTER TABLE `children`
ADD CONSTRAINT `children_ibfk_1` FOREIGN KEY (`father_id`) REFERENCES `fathers` (`id`) ON DELETE CASCADE;
父亲型号：
/**
* This is the model class for table "fathers".
*
* The followings are the available columns in table 'fathers':
* @property integer $id
* @property string $name
*
* The followings are the available model relations:
* @property Children[] $childrens
*/
class Father extends CActiveRecord
{
/**
* Returns the static model of the specified AR class.
* @param string $className active record class name.
* @return Father the static model class
*/
public static function model($className=__CLASS__)
{
return parent::model($className);
}
/**
* @return string the associated database table name
*/
public function tableName()
{
return 'fathers';
}
/**
* @return array validation rules for model attributes.
*/
public function rules()
{
// NOTE: you should only define rules for those attributes that
// will receive user inputs.
return array(
array('name', 'required'),
array('name', 'length', 'max' => 255),
// The following rule is used by search().
// Please remove those attributes that should not be searched.
array('id, name', 'safe', 'on' => 'search'),
);
}
/**
* @return array relational rules.
*/
public function relations()
{
// NOTE: you may need to adjust the relation name and the related
// class name for the relations automatically generated below.
return array(
'children' => array(self::HAS_MANY, 'Child', 'father_id'),
);
}
/**
* @return array customized attribute labels (name=>label)
*/
public function attributeLabels()
{
return array(
'id' => 'ID',
'name' => 'Name',
);
}
/**
* Retrieves a list of models based on the current search/filter conditions.
* @return CActiveDataProvider the data provider that can return the models based on the search/filter conditions.
*/
public function search()
{
// Warning: Please modify the following code to remove attributes that
// should not be searched.
$criteria = new CDbCriteria;
$criteria->compare('id', $this->id);
$criteria->compare('name', $this->name, true);
return new CActiveDataProvider($this, array(
'criteria' => $criteria,
));
}
public function behaviors()
{
return array('ESaveRelatedBehavior' => array(
'class' => 'application.components.ESaveRelatedBehavior')
);
}
}
儿童型号：
<?php
/**
* This is the model class for table "children".
*
* The followings are the available columns in table 'children':
* @property integer $id
* @property integer $father_id
* @property string $name
* @property integer $age
*
* The followings are the available model relations:
* @property Fathers $father
*/
class Child extends CActiveRecord
{
/**
* Returns the static model of the specified AR class.
* @param string $className active record class name.
* @return Child the static model class
*/
public static function model($className=__CLASS__)
{
return parent::model($className);
}
/**
* @return string the associated database table name
*/
public function tableName()
{
return 'children';
}
/**
* @return array validation rules for model attributes.
*/
public function rules()
{
// NOTE: you should only define rules for those attributes that
// will receive user inputs.
return array(
array('father_id, name, age', 'required'),
array('father_id, age', 'numerical', 'integerOnly' => true),
array('name', 'length', 'max' => 255),
// The following rule is used by search().
// Please remove those attributes that should not be searched.
array('id, father_id, name, age', 'safe', 'on' => 'search'),
);
}
/**
* @return array relational rules.
*/
public function relations()
{
// NOTE: you may need to adjust the relation name and the related
// class name for the relations automatically generated below.
return array(
'father' => array(self::BELONGS_TO, 'Father', 'father_id'),
);
}
/**
* @return array customized attribute labels (name=>label)
*/
public function attributeLabels()
{
return array(
'id' => 'ID',
'father_id' => 'Father',
'name' => 'Name',
'age' => 'Age',
);
}
/**
* Retrieves a list of models based on the current search/filter conditions.
* @return CActiveDataProvider the data provider that can return the models based on the search/filter conditions.
*/
public function search()
{
// Warning: Please modify the following code to remove attributes that
// should not be searched.
$criteria = new CDbCriteria;
$criteria->compare('id', $this->id);
$criteria->compare('father_id', $this->father_id);
$criteria->compare('name', $this->name, true);
$criteria->compare('age', $this->age);
return new CActiveDataProvider($this, array(
'criteria' => $criteria,
));
}
}
父亲控制器：
<?php
class FatherController 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
'postOnly + delete', // we only allow deletion via POST request
);
}
/**
* 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', 'loadChildByAjax'),
'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 Father;
// Uncomment the following line if AJAX validation is needed
// $this->performAjaxValidation($model);
if (isset($_POST['Father']))
{
$model->attributes = $_POST['Father'];
if (isset($_POST['Child']))
{
$model->children = $_POST['Child'];
$model->saveWithRelated('children');
}
if ($model->save())
$this->redirect(array('view', 'id' => $model->id));
else
{
//CVarDumper::dump($model->errors,10,1);die;
}
}
$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['Father']))
{
$model->attributes = $_POST['Father'];
if (isset($_POST['Child']))
{
$model->children = $_POST['Child'];
$model->saveWithRelated('children');
}
if ($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)
{
$this->loadModel($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'));
}
/**
* Lists all models.
*/
public function actionIndex()
{
$dataProvider = new CActiveDataProvider('Father');
$this->render('index', array(
'dataProvider' => $dataProvider,
));
}
/**
* Manages all models.
*/
public function actionAdmin()
{
$model = new Father('search');
$model->unsetAttributes(); // clear any default values
if (isset($_GET['Father']))
$model->attributes = $_GET['Father'];
$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)
{
$model = Father::model()->findByPk($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']) && $_POST['ajax'] === 'father-form')
{
echo CActiveForm::validate($model);
Yii::app()->end();
}
}
public function actionLoadChildByAjax($index)
{
$model = new Child;
$this->renderPartial('child/_form', array(
'model' => $model,
'index' => $index,
));
}
}
创建父窗体：
<?php
/* @var $this FatherController */
/* @var $model Father */
/* @var $form CActiveForm */
?>
<div class="form">
<?php
$form = $this->beginWidget('CActiveForm', array(
'id' => 'father-form',
'focus' => array($model, 'name'),
'enableClientValidation' => true,
'enableAjaxValidation' => true,
));
?>
<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, 'name'); ?>
<?php echo $form->textField($model, 'name', array('size' => 60, 'maxlength' => 255)); ?>
<?php echo $form->error($model, 'name'); ?>
</div>
<?php
echo CHtml::link('Add Child', '#', array('id' => 'loadChildByAjax'));
?>
<div id="children">
<?php
$index = 0;
foreach ($model->children as $id => $child):
$this->renderPartial('child/_form', array(
'model' => $child,
'index' => $id,
'display' => 'block'
));
$index++;
endforeach;
?>
</div>
<div style="clear:both;"></div>
<div class="row buttons">
<?php echo CHtml::submitButton($model->isNewRecord ? 'Create' : 'Save'); ?>
</div>
<?php $this->endWidget(); ?>
</div><!-- form -->
<?php
Yii::app()->clientScript->registerCoreScript('jquery');
Yii::app()->clientScript->registerScript('loadchild', '
var _index = ' . $index . ';
$("#loadChildByAjax").click(function(e){
e.preventDefault();
var _url = "' . Yii::app()->controller->createUrl("loadChildByAjax", array("load_for" => $this->action->id)) . '&index="+_index;
$.ajax({
url: _url,
success:function(response){
$("#children").append(response);
$("#children .crow").last().animate({
opacity : 1,
left: "+50",
height: "toggle"
});
}
});
_index++;
});
', CClientScript::POS_END);
?>
子表： views\father\child_form.php
<div style="margin-bottom: 20px; display: <?php echo!empty($display) ? $display : 'none'; ?>; width:100%; clear:left;" class="crow">
<div class="row" style="width:200px;float: left;">
<?php echo CHtml::activeLabelEx($model, '[' . $index . ']name'); ?>
<?php echo CHtml::activeTextField($model, '[' . $index . ']name', array('size' => 20, 'maxlength' => 255)); ?>
<?php echo CHtml::error($model, '[' . $index . ']name'); ?>
</div>
<div class="row" style="width:200px;float: left;">
<?php echo CHtml::activeLabelEx($model, '[' . $index . ']age'); ?>
<?php echo CHtml::activeTextField($model, '[' . $index . ']age'); ?>
<?php echo CHtml::error($model, '[' . $index . ']age'); ?>
</div>
<div class="row" style="width:100px;float: left;">
<br />
<?php echo CHtml::link('Delete', '#', array('onclick' => 'deleteChild(this, ' . $index . '); return false;'));
?>
</div>
</div>
<?php
Yii::app()->clientScript->registerScript('deleteChild', "
function deleteChild(elm, index)
{
element=$(elm).parent().parent();
/* animate div */
$(element).animate(
{
opacity: 0.25,
left: '+=50',
height: 'toggle'
}, 500,
function() {
/* remove div */
$(element).remove();
});
}", CClientScript::POS_END);
本方案使用 sluderitz 开发的 esaverelatedbehavior 来保存相关模型，可以在这里下载
渲染模型数组（无论它们是否是子模型）的正确语法需要对相关模型进行实例化。所以你必须在你的观点中做这样的事情：
$child = new ChildModel();
$form->textFieldRow($child,'[]PROPERTY',$dateAtts);
其中 PROPERTY 是您要为其呈现文本框的属性的名称。
如果您想要一个用于创建和更新父模型的表单，唯一的方法是实例化一个模拟对象来呈现表单。在我的例子中，Event 有一个 Appointment 的集合，所以在我的控制器操作中我做了：
$event->appointments = array(new Appointment);
然后，在视图中
<?php foreach($model->appointments as $id => $item) : ?>
<div class="appointment">
<?php echo $form->textFieldRow($item,'[$id]day',$htmlAtts); ?>
</div>
<?php endforeach; ?>
我将尝试使用此扩展程序来保存相关模型：https ://github.com/yiiext/with-related-behavior
更新
如果你想让子模型在 $_POST 中的父模型数组中，你必须覆盖 name 属性。按照问题示例...
$form->textFieldRow(
$item,
'[$id]day',
array('name' => "Event[appointments][$id][day]")
);