CDbException

428      * @return mixed the value of the first column in the first row of the query result. False is returned if there is no value.
429      * @throws CException execution failed
430      */
431     public function queryScalar($params=array())
432     {
433         $result=$this->queryInternal('fetchColumn',0,$params);
434         if(is_resource($result) && get_resource_type($result)==='stream')
435             return stream_get_contents($result);
436         else
437             return $result;
438     }

1596         $this->beforeCount();
1597         $criteria=$builder->createCriteria($condition,$params);
1598         $this->applyScopes($criteria);
1599 
1600         if(empty($criteria->with))
1601             return $builder->createCountCommand($this->getTableSchema(),$criteria)->queryScalar();
1602         else
1603         {
1604             $finder=$this->getActiveFinder($criteria->with);
1605             return $finder->count($criteria);
1606         }

223     protected function calculateTotalItemCount()
224     {
225         $baseCriteria=$this->model->getDbCriteria(false);
226         if($baseCriteria!==null)
227             $baseCriteria=clone $baseCriteria;
228         $count=$this->model->count($this->getCountCriteria());
229         $this->model->setDbCriteria($baseCriteria);
230         return $count;
231     }
232 }

219      * @return integer total number of possible data items.
220      */
221     public function getTotalItemCount($refresh=false)
222     {
223         if($this->_totalItemCount===null || $refresh)
224             $this->_totalItemCount=$this->calculateTotalItemCount();
225         return $this->_totalItemCount;
226     }
227 
228     /**
229      * Sets the total number of data items.

173     {
174         $criteria=clone $this->getCriteria();
175 
176         if(($pagination=$this->getPagination())!==false)
177         {
178             $pagination->setItemCount($this->getTotalItemCount());
179             $pagination->applyLimit($criteria);
180         }
181 
182         $baseCriteria=$this->model->getDbCriteria(false);
183 

163      * @return array the list of data items currently available in this data provider.
164      */
165     public function getData($refresh=false)
166     {
167         if($this->_data===null || $refresh)
168             $this->_data=$this->fetchData();
169         return $this->_data;
170     }
171 
172     /**
173      * Sets the data items for this provider.

106     public function init()
107     {
108         if($this->dataProvider===null)
109             throw new CException(Yii::t('zii','The "dataProvider" property cannot be empty.'));
110 
111         $this->dataProvider->getData();
112 
113         if(isset($this->htmlOptions['id']))
114             $this->id=$this->htmlOptions['id'];
115         else
116             $this->htmlOptions['id']=$this->id;

206      */
207     public function init()
208     {
209         if($this->itemView===null)
210             throw new CException(Yii::t('zii','The property "itemView" cannot be empty.'));
211         parent::init();
212 
213         if(!isset($this->htmlOptions['class']))
214             $this->htmlOptions['class']='list-view';
215 
216         if($this->baseScriptUrl===null)

142      * @return CWidget the fully initialized widget instance.
143      */
144     public function createWidget($className,$properties=array())
145     {
146         $widget=Yii::app()->getWidgetFactory()->createWidget($this,$className,$properties);
147         $widget->init();
148         return $widget;
149     }
150 
151     /**
152      * Creates a widget and executes it.

167             $widget->run();
168             return ob_get_clean();
169         }
170         else
171         {
172             $widget=$this->createWidget($className,$properties);
173             $widget->run();
174             return $widget;
175         }
176     }
177 

121             $data=$_data_;
122         if($_return_)
123         {
124             ob_start();
125             ob_implicit_flush(false);
126             require($_viewFile_);
127             return ob_get_clean();
128         }
129         else
130             require($_viewFile_);
131     }

090     {
091         $widgetCount=count($this->_widgetStack);
092         if(($renderer=Yii::app()->getViewRenderer())!==null && $renderer->fileExtension==='.'.CFileHelper::getExtension($viewFile))
093             $content=$renderer->renderFile($this,$viewFile,$data,$return);
094         else
095             $content=$this->renderInternal($viewFile,$data,$return);
096         if(count($this->_widgetStack)===$widgetCount)
097             return $content;
098         else
099         {
100             $widget=end($this->_widgetStack);

864      */
865     public function renderPartial($view,$data=null,$return=false,$processOutput=false)
866     {
867         if(($viewFile=$this->getViewFile($view))!==false)
868         {
869             $output=$this->renderFile($viewFile,$data,true);
870             if($processOutput)
871                 $output=$this->processOutput($output);
872             if($return)
873                 return $output;
874             else

777      */
778     public function render($view,$data=null,$return=false)
779     {
780         if($this->beforeRender($view))
781         {
782             $output=$this->renderPartial($view,$data,true);
783             if(($layoutFile=$this->getLayoutFile($this->layout))!==false)
784                 $output=$this->renderFile($layoutFile,array('content'=>$output),true);
785 
786             $this->afterRender($view,$output);
787 

44         $controller=$this->getController();
45         $method=new ReflectionMethod($controller, $methodName);
46         if($method->getNumberOfParameters()>0)
47             return $this->runWithParamsInternal($controller, $method, $params);
48         else
49             return $controller->$methodName();
50     }
51 
52 }

303     {
304         $priorAction=$this->_action;
305         $this->_action=$action;
306         if($this->beforeAction($action))
307         {
308             if($action->runWithParams($this->getActionParams())===false)
309                 $this->invalidActionParams($action);
310             else
311                 $this->afterAction($action);
312         }
313         $this->_action=$priorAction;

128             $filter=$this->itemAt($this->filterIndex++);
129             Yii::trace('Running filter '.($filter instanceof CInlineFilter ? get_class($this->controller).'.filter'.$filter->name.'()':get_class($filter).'.filter()'),'system.web.filters.CFilterChain');
130             $filter->filter($this);
131         }
132         else
133             $this->controller->runAction($this->action);
134     }
135 }

35      */
36     public function filter($filterChain)
37     {
38         if($this->preFilter($filterChain))
39         {
40             $filterChain->run();
41             $this->postFilter($filterChain);
42         }
43     }
44 
45     /**

1140      */
1141     public function filterAccessControl($filterChain)
1142     {
1143         $filter=new CAccessControlFilter;
1144         $filter->setRules($this->accessRules());
1145         $filter->filter($filterChain);
1146     }
1147 
1148     /**
1149      * Returns a persistent page state value.
1150      * A page state is a variable that is persistent across POST requests of the same page.

53      * @param CFilterChain $filterChain the filter chain that the filter is on.
54      */
55     public function filter($filterChain)
56     {
57         $method='filter'.$this->name;
58         $filterChain->controller->$method($filterChain);
59     }
60 }

125     {
126         if($this->offsetExists($this->filterIndex))
127         {
128             $filter=$this->itemAt($this->filterIndex++);
129             Yii::trace('Running filter '.($filter instanceof CInlineFilter ? get_class($this->controller).'.filter'.$filter->name.'()':get_class($filter).'.filter()'),'system.web.filters.CFilterChain');
130             $filter->filter($this);
131         }
132         else
133             $this->controller->runAction($this->action);
134     }
135 }

286             $this->runAction($action);
287         else
288         {
289             $priorAction=$this->_action;
290             $this->_action=$action;
291             CFilterChain::create($this,$action,$filters)->run();
292             $this->_action=$priorAction;
293         }
294     }
295 
296     /**

260         {
261             if(($parent=$this->getModule())===null)
262                 $parent=Yii::app();
263             if($parent->beforeControllerAction($this,$action))
264             {
265                 $this->runActionWithFilters($action,$this->filters());
266                 $parent->afterControllerAction($this,$action);
267             }
268         }
269         else
270             $this->missingAction($actionID);

277         {
278             list($controller,$actionID)=$ca;
279             $oldController=$this->_controller;
280             $this->_controller=$controller;
281             $controller->init();
282             $controller->run($actionID);
283             $this->_controller=$oldController;
284         }
285         else
286             throw new CHttpException(404,Yii::t('yii','Unable to resolve the request "{route}".',
287                 array('{route}'=>$route===''?$this->defaultController:$route)));

136             foreach(array_splice($this->catchAllRequest,1) as $name=>$value)
137                 $_GET[$name]=$value;
138         }
139         else
140             $route=$this->getUrlManager()->parseUrl($this->getRequest());
141         $this->runController($route);
142     }
143 
144     /**
145      * Registers the core application components.
146      * This method overrides the parent implementation by registering additional core components.

175     public function run()
176     {
177         if($this->hasEventHandler('onBeginRequest'))
178             $this->onBeginRequest(new CEvent($this));
179         register_shutdown_function(array($this,'end'),0,false);
180         $this->processRequest();
181         if($this->hasEventHandler('onEndRequest'))
182             $this->onEndRequest(new CEvent($this));
183     }
184 
185     /**