我是 Yii 框架的新手，我有一个将位置存储为地理空间点对象的数据库表。我正在使用代码生成工具来生成更新/添加到数据库的表单。但是，这些表单不能正确处理位置字段。我一直在努力弄清楚这是如何工作的。这篇文章中提到的解决方案没有帮助。
如果有人可以将我链接到有关如何在 yii 模型中处理地理空间点对象的教程，我将不胜感激。我觉得这一定是一个非常简单的解决方案，但我似乎无法理解它。下面提供了我的模型、表单和控制器的源代码：
模型
<?php
/**
* This is the model class for table "store".
*
* The followings are the available columns in table 'store':
* @property integer $id
* @property string $name
* @property string $location
*/
class Store extends CActiveRecord
{
/**
* Returns the static model of the specified AR class.
* @param string $className active record class name.
* @return Store the static model class
*/
public static function model($className=__CLASS__)
{
return parent::model($className);
}
/**
* @return string the associated database table name
*/
public function tableName()
{
return 'store';
}
/**
* @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('id, name, location', 'required'),
array('id', 'numerical', 'integerOnly'=>true),
// The following rule is used by search().
// Please remove those attributes that should not be searched.
array('id, name, location', '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(
);
}
/**
* @return array customized attribute labels (name=>label)
*/
public function attributeLabels()
{
return array(
'id' => 'ID',
'name' => 'Name',
'location' => 'Location',
);
}
/**
* 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);
$criteria->compare('location',$this->location,true);
return new CActiveDataProvider($this, array(
'criteria'=>$criteria,
));
}
}
控制器
<?php
class StoreController 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'),
'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 Store;
// Uncomment the following line if AJAX validation is needed
// $this->performAjaxValidation($model);
if(isset($_POST['Store']))
{
$model->attributes=$_POST['Store'];
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['Store']))
{
$model->attributes=$_POST['Store'];
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('Store');
$this->render('index',array(
'dataProvider'=>$dataProvider,
));
}
/**
* Manages all models.
*/
public function actionAdmin()
{
$model=new Store('search');
$model->unsetAttributes(); // clear any default values
if(isset($_GET['Store']))
$model->attributes=$_GET['Store'];
$this->render('admin',array(
'model'=>$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)
{
$model=Store::model()->findByPk($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']) && $_POST['ajax']==='store-form')
{
echo CActiveForm::validate($model);
Yii::app()->end();
}
}
}
形式：
<?php
/* @var $this StoreController */
/* @var $model Store */
/* @var $form CActiveForm */
?>
<div class="form">
<?php $form=$this->beginWidget('CActiveForm', array(
'id'=>'store-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,'id'); ?>
<?php echo $form->textField($model,'id'); ?>
<?php echo $form->error($model,'id'); ?>
</div>
<div class="row">
<?php echo $form->labelEx($model,'name'); ?>
<?php echo $form->textArea($model,'name',array('rows'=>6, 'cols'=>50)); ?>
<?php echo $form->error($model,'name'); ?>
</div>
<div class="row">
<?php echo $form->labelEx($model,'location'); ?>
<?php echo $form->textField($model,'location'); ?>
<?php echo $form->error($model,'location'); ?>
</div>
<div class="row buttons">
<?php echo CHtml::submitButton($model->isNewRecord ? 'Create' : 'Save'); ?>
</div>
<?php $this->endWidget(); ?>
</div><!-- form -->
这是我尝试从自动生成的表单向存储表添加行时发生的屏幕截图：
这是预期的，因为必须从纬度和经度构造点对象。我不知道如何将其融入 Yii 模型中。提前感谢您提供的任何帮助！