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d778201 Mar 10, 2010
217 lines (197 sloc) 4.89 KB
<?php
class PostController extends Controller
{
public $layout='column2';
/**
* @var CActiveRecord the currently loaded data model instance.
*/
private $_model;
/**
* @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 access 'index' and 'view' actions.
'actions'=>array('index','view'),
'users'=>array('*'),
),
array('allow', // allow authenticated users to access all actions
'users'=>array('@'),
),
array('deny', // deny all users
'users'=>array('*'),
),
);
}
/**
* Displays a particular model.
*/
public function actionView()
{
$post=$this->loadModel();
$comment=$this->newComment($post);
$this->render('view',array(
'model'=>$post,
'comment'=>$comment,
));
}
/**
* Creates a new model.
* If creation is successful, the browser will be redirected to the 'view' page.
*/
public function actionCreate()
{
$model=new Post;
if(isset($_POST['Post']))
{
$model->attributes=$_POST['Post'];
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.
*/
public function actionUpdate()
{
$model=$this->loadModel();
if(isset($_POST['Post']))
{
$model->attributes=$_POST['Post'];
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.
*/
public function actionDelete()
{
if(Yii::app()->request->isPostRequest)
{
// we only allow deletion via POST request
$this->loadModel()->delete();
// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
if(!isset($_GET['ajax']))
$this->redirect(array('index'));
}
else
throw new CHttpException(400,'Invalid request. Please do not repeat this request again.');
}
/**
* Lists all models.
*/
public function actionIndex()
{
$criteria=new CDbCriteria(array(
'condition'=>'status='.Post::STATUS_PUBLISHED,
'order'=>'update_time DESC',
'with'=>'commentCount',
));
if(isset($_GET['tag']))
$criteria->addSearchCondition('tags',$_GET['tag']);
$dataProvider=new CActiveDataProvider('Post', array(
'pagination'=>array(
'pageSize'=>Yii::app()->params['postsPerPage'],
),
'criteria'=>$criteria,
));
$this->render('index',array(
'dataProvider'=>$dataProvider,
));
}
/**
* Manages all models.
*/
public function actionAdmin()
{
$model=new Post('search');
if(isset($_GET['Post']))
$model->attributes=$_GET['Post'];
$this->render('admin',array(
'model'=>$model,
));
}
/**
* Suggests tags based on the current user input.
* This is called via AJAX when the user is entering the tags input.
*/
public function actionSuggestTags()
{
if(isset($_GET['q']) && ($keyword=trim($_GET['q']))!=='')
{
$tags=Tag::model()->suggestTags($keyword);
if($tags!==array())
echo implode("\n",$tags);
}
}
/**
* 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.
*/
public function loadModel()
{
if($this->_model===null)
{
if(isset($_GET['id']))
{
if(Yii::app()->user->isGuest)
$condition='status='.Post::STATUS_PUBLISHED.' OR status='.Post::STATUS_ARCHIVED;
else
$condition='';
$this->_model=Post::model()->findByPk($_GET['id'], $condition);
}
if($this->_model===null)
throw new CHttpException(404,'The requested page does not exist.');
}
return $this->_model;
}
/**
* Creates a new comment.
* This method attempts to create a new comment based on the user input.
* If the comment is successfully created, the browser will be redirected
* to show the created comment.
* @param Post the post that the new comment belongs to
* @return Comment the comment instance
*/
protected function newComment($post)
{
$comment=new Comment;
if(isset($_POST['ajax']) && $_POST['ajax']==='comment-form')
{
echo CActiveForm::validate($comment);
Yii::app()->end();
}
if(isset($_POST['Comment']))
{
$comment->attributes=$_POST['Comment'];
if($post->addComment($comment))
{
if($comment->status==Comment::STATUS_PENDING)
Yii::app()->user->setFlash('commentSubmitted','Thank you for your comment. Your comment will be posted once it is approved.');
$this->refresh();
}
}
return $comment;
}
}