我正在学习Yii，正在编写用于实践的应用程序，但是当我调用actionupdate时，出现错误“致命错误：在非对象上调用成员函数getUserOptions（）”。
这是我的代码，您能告诉我为什么吗？
issuecontroller.php
public function actionUpdate($id)
{
$model=$this->loadModel($id);
// Uncomment the following line if AJAX validation is needed
// $this->performAjaxValidation($model);
if(isset($_POST['Issue']))
{
$model->attributes=$_POST['Issue'];
if($model->save())
$this->redirect(array('view','id'=>$model->id));
}
$this->render('update',array(
'model'=>$model,
));
}
...
public function loadModel($id)
{
$model=Issue::model()->findByPk((int)$id);
if($model===null)
throw new CHttpException(404,'The requested page does not exist.');
return $model;
}
...
public function getProject()
{
return $this->_project;
}
}
...
project.php
public function getUserOptions()
{
$usersArray=CHtml::listData($this->users,'id','username');
return $usersArray;
}
_form.php
<?php echo $form->dropDownList($model,'owner_id', $this->getProject()->getUserOptions()); ?>
http://localhost/trackstar/index.php?r=issue/update&id=15
this is my error page 但是，当我将其称为“ actioncreate”时，没有任何错误。
我不知道为什么当我调用“ issue / create＆pid = 1”时，我可以var_dump（$ this）;如下，但是为什么我叫“ issue / update＆id = 1”却得到“空”。
我叫“ issue / create＆pid = 1”，我可以var_dump（$ this）;如下
object(IssueController)[10]
private '_project' =>
object(Project)[41]
private '_md' (CActiveRecord) =>
object(CActiveRecordMetaData)[23]
public 'tableSchema' =>
object(CMysqlTableSchema)[27]
...
public 'columns' =>
array (size=7)
...
public 'relations' =>
array (size=2)
...
public 'attributeDefaults' =>
array (size=0)
...
private '_model' =>
object(Project)[22]
...
private '_new' (CActiveRecord) => boolean false
private '_attributes' (CActiveRecord) =>
array (size=7)
'id' => string '1' (length=1)
'name' => string 'project1' (length=8)
'description' => null
'create_time' => null
'create_user_id' => null
'update_time' => null
'update_user_id' => null
private '_related' (CActiveRecord) =>
array (size=0)
empty
private '_c' (CActiveRecord) => null
private '_pk' (CActiveRecord) => string '1' (length=1)
private '_alias' (CActiveRecord) => string 't' (length=1)
private '_errors' (CModel) =>
array (size=0)
empty
private '_validators' (CModel) => null
private '_scenario' (CModel) => string 'update' (length=6)
private '_e' (CComponent) => null
private '_m' (CComponent) => null
public 'layout' => string '//layouts/column2' (length=17)
public 'menu' =>
array (size=2)
0 =>
array (size=2)
'label' => string 'List Issue' (length=10)
'url' =>
array (size=1)
...
1 =>
array (size=2)
'label' => string 'Manage Issue' (length=12)
'url' =>
array (size=1)
...
public 'breadcrumbs' =>
array (size=2)
'Issues' =>
array (size=1)
0 => string 'index' (length=5)
0 => string 'Create' (length=6)
public 'defaultAction' => string 'index' (length=5)
private '_id' (CController) => string 'issue' (length=5)
private '_action' (CController) =>
object(CInlineAction)[11]
private '_id' (CAction) => string 'create' (length=6)
private '_controller' (CAction) =>
&object(IssueController)[10]
private '_e' (CComponent) => null
private '_m' (CComponent) => null
private '_pageTitle' (CController) => null
private '_cachingStack' (CController) => null
private '_clips' (CController) => null
private '_dynamicOutput' (CController) => null
private '_pageStates' (CController) => null
private '_module' (CController) => null
private '_widgetStack' (CBaseController) =>
array (size=1)
0 =>
object(CActiveForm)[68]
public 'action' => string '' (length=0)
public 'method' => string 'post' (length=4)
public 'stateful' => boolean false
public 'errorMessageCssClass' => string 'errorMessage' (length=12)
public 'htmlOptions' =>
array (size=1)
...
public 'clientOptions' =>
array (size=0)
...
public 'enableAjaxValidation' => boolean false
public 'focus' => null
private '_attributes' =>
array (size=0)
...
private '_summary' => null
public 'actionPrefix' => null
public 'skin' => string 'default' (length=7)
private '_id' (CWidget) => string 'issue-form' (length=10)
private '_owner' (CWidget) =>
&object(IssueController)[10]
private '_widgetStack' (CBaseController) =>
array (size=0)
...
private '_e' (CComponent) => null
private '_m' (CComponent) => null
private '_e' (CComponent) => null
private '_m' (CComponent) => null
我将“ issue / update＆id = 1”称为“ null”。
object(IssueController)[10]
private '_project' => null
public 'layout' => string '//layouts/column2' (length=17)
public 'menu' =>
array (size=4)
0 =>
array (size=2)
'label' => string 'List Issue' (length=10)
'url' =>
array (size=1)
...
1 =>
array (size=2)
'label' => string 'Create Issue' (length=12)
'url' =>
array (size=1)
...
2 =>
array (size=2)
'label' => string 'View Issue' (length=10)
'url' =>
array (size=2)
...
3 =>
array (size=2)
'label' => string 'Manage Issue' (length=12)
'url' =>
array (size=1)
...
public 'breadcrumbs' =>
array (size=3)
'Issues' =>
array (size=1)
0 => string 'index' (length=5)
'issue belong to project1' =>
array (size=2)
0 => string 'view' (length=4)
'id' => string '15' (length=2)
0 => string 'Update' (length=6)
public 'defaultAction' => string 'index' (length=5)
private '_id' (CController) => string 'issue' (length=5)
private '_action' (CController) =>
object(CInlineAction)[11]
private '_id' (CAction) => string 'update' (length=6)
private '_controller' (CAction) =>
&object(IssueController)[10]
private '_e' (CComponent) => null
private '_m' (CComponent) => null
private '_pageTitle' (CController) => null
private '_cachingStack' (CController) => null
private '_clips' (CController) => null
private '_dynamicOutput' (CController) => null
private '_pageStates' (CController) => null
private '_module' (CController) => null
private '_widgetStack' (CBaseController) =>
array (size=1)
0 =>
object(CActiveForm)[46]
public 'action' => string '' (length=0)
public 'method' => string 'post' (length=4)
public 'stateful' => boolean false
public 'errorMessageCssClass' => string 'errorMessage' (length=12)
public 'htmlOptions' =>
array (size=1)
...
public 'clientOptions' =>
array (size=0)
...
public 'enableAjaxValidation' => boolean false
public 'focus' => null
private '_attributes' =>
array (size=0)
...
private '_summary' => null
public 'actionPrefix' => null
public 'skin' => string 'default' (length=7)
private '_id' (CWidget) => string 'issue-form' (length=10)
private '_owner' (CWidget) =>
&object(IssueController)[10]
private '_widgetStack' (CBaseController) =>
array (size=0)
...
private '_e' (CComponent) => null
private '_m' (CComponent) => null
private '_e' (CComponent) => null
private '_m' (CComponent) => null
我怀疑问题出在我的issueController.php中。如下。你能告诉我原因吗？
<?php
class IssueController 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'.
*/
private $_project = null;
public $layout='//layouts/column2';
/**
* @return array action filters
*/
protected function loadProject($project_id) {
//if the project property is null, create it based on input id
if($this->_project===null)
{
$this->_project=Project::model()->findbyPk($project_id);
if($this->_project===null)
{
throw new CHttpException(404,'The requested project does not
exist.');
}
}
return $this->_project;
}
public function filters()
{
return array(
'accessControl', // perform access control for CRUD operations
'projectContext + create',
);
}
/**
* 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 Issue;
$model->project_id = $this->_project->id;
// Uncomment the following line if AJAX validation is needed
// $this->performAjaxValidation($model);
if(isset($_POST['Issue']))
{
$model->attributes=$_POST['Issue'];
if($model->save())
$this->redirect(array('view','id'=>$model->id));
}
$this->render('create',array(
'model'=>$model,
));
}
public function actionUpdate($id)
{
$model=$this->loadModel($id);
// Uncomment the following line if AJAX validation is needed
// $this->performAjaxValidation($model);
/* var_dump($model);
exit;
*/ //we can get the record of $id with $model
if(isset($_POST['Issue']))
{
$model->attributes=$_POST['Issue'];
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 'index' 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('Issue');
$this->render('index',array(
'dataProvider'=>$dataProvider,
));
}
/**
* Manages all models.
*/
public function actionAdmin()
{
$model=new Issue('search');
$model->unsetAttributes(); // clear any default values
if(isset($_GET['Issue']))
$model->attributes=$_GET['Issue'];
$this->render('admin',array(
'model'=>$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)
{
$model=Issue::model()->findByPk((int)$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']) && $_POST['ajax']==='issue-form')
{
echo CActiveForm::validate($model);
Yii::app()->end();
}
}
public function filterProjectContext($filterChain)
{
//set the project identifier based on either the GET or POST input
//request variables, since we allow both types for our actions
$projectId = null;
if(isset($_GET['pid']))
$projectId = $_GET['pid'];
else
if(isset($_POST['pid']))
$projectId = $_POST['pid'];
$this->loadProject($projectId);
//complete the running of other filters and execute the requested action
$filterChain->run();
}
public function getProject()
{
return $this->_project;
}
}
当我调用“ issue / update＆id = 15”时，我尝试了“ var_dump（$ model）;”我得到如下。
object(Issue)[48]
private '_md' (CActiveRecord) =>
object(CActiveRecordMetaData)[24]
public 'tableSchema' =>
object(CMysqlTableSchema)[28]
public 'schemaName' => null
public 'name' => string 'tbl_issue' (length=9)
public 'rawName' => string '`tbl_issue`' (length=11)
public 'primaryKey' => string 'id' (length=2)
public 'sequenceName' => string '' (length=0)
public 'foreignKeys' =>
array (size=3)
...
public 'columns' =>
array (size=12)
...
private '_e' (CComponent) => null
private '_m' (CComponent) => null
public 'columns' =>
array (size=12)
'id' =>
object(CMysqlColumnSchema)[29]
...
'name' =>
object(CMysqlColumnSchema)[30]
...
'description' =>
object(CMysqlColumnSchema)[31]
...
'project_id' =>
object(CMysqlColumnSchema)[32]
...
'type_id' =>
object(CMysqlColumnSchema)[33]
...
'status_id' =>
object(CMysqlColumnSchema)[34]
...
'owner_id' =>
object(CMysqlColumnSchema)[35]
...
'requester_id' =>
object(CMysqlColumnSchema)[36]
...
'create_time' =>
object(CMysqlColumnSchema)[37]
...
'create_user_id' =>
object(CMysqlColumnSchema)[38]
...
'update_time' =>
object(CMysqlColumnSchema)[39]
...
'update_user_id' =>
object(CMysqlColumnSchema)[40]
...
public 'relations' =>
array (size=3)
'owner' =>
object(CBelongsToRelation)[41]
...
'project' =>
object(CBelongsToRelation)[42]
...
'requester' =>
object(CBelongsToRelation)[43]
...
public 'attributeDefaults' =>
array (size=0)
empty
private '_model' =>
object(Issue)[23]
private '_md' (CActiveRecord) =>
&object(CActiveRecordMetaData)[24]
private '_new' (CActiveRecord) => boolean false
private '_attributes' (CActiveRecord) =>
array (size=0)
...
private '_related' (CActiveRecord) =>
array (size=0)
...
private '_c' (CActiveRecord) => null
private '_pk' (CActiveRecord) => null
private '_alias' (CActiveRecord) => string 't' (length=1)
private '_errors' (CModel) =>
array (size=0)
...
private '_validators' (CModel) => null
private '_scenario' (CModel) => string '' (length=0)
private '_e' (CComponent) => null
private '_m' (CComponent) => null
private '_new' (CActiveRecord) => boolean false
private '_attributes' (CActiveRecord) =>
array (size=12)
'id' => string '15' (length=2)
'name' => string 'issue belong to project1' (length=24)
'description' => string '123' (length=3)
'project_id' => string '1' (length=1)
'type_id' => string '2' (length=1)
'status_id' => null
'owner_id' => string '1' (length=1)
'requester_id' => string '1' (length=1)
'create_time' => null
'create_user_id' => null
'update_time' => null
'update_user_id' => null
private '_related' (CActiveRecord) =>
array (size=0)
empty
private '_c' (CActiveRecord) => null
private '_pk' (CActiveRecord) => string '15' (length=2)
private '_alias' (CActiveRecord) => string 't' (length=1)
private '_errors' (CModel) =>
array (size=0)
empty
private '_validators' (CModel) =>
object(CList)[47]
private '_d' =>
array (size=6)
0 =>
object(CRequiredValidator)[49]
...
1 =>
object(CNumberValidator)[50]
...
2 =>
object(CStringValidator)[51]
...
3 =>
object(CStringValidator)[52]
...
4 =>
object(CSafeValidator)[53]
...
5 =>
object(CSafeValidator)[54]
...
private '_c' => int 6
private '_r' => boolean false
private '_e' (CComponent) => null
private '_m' (CComponent) => null
private '_scenario' (CModel) => string 'update' (length=6)
private '_e' (CComponent) => null
private '_m' (CComponent) => null
答案 0 :(得分：0)
I fixed it by below codes.
public function actionUpdate($id)
{
$model=$this->loadModel($id);
$this->loadProject($model->project_id);
$model->project_id = $this->_project->id;
if(isset($_POST['Issue']))
{
$model->attributes=$_POST['Issue'];
if($model->save())
$this->redirect(array('view','id'=>$model->id));
}
$this->render('update',array(
'model'=>$model,
));
}