Getparam()

nkhanna24 · January 28, 2013, 5:38am

Hi

I am new in yii framework. I came across this code.

$criteria=new CDbCriteria();

	if(isset(&#036;_GET['tag']))


		&#036;criteria-&gt;addSearchCondition('question.tags',&#036;_GET['tag']);


		


	&#036;param = Yii::app()-&gt;request-&gt;getParam('param');

$dataProvider=new CActiveDataProvider(Question::model()->recent()->with(‘user’)->with(‘answers’));

$this->render(‘index’,array(‘dataProvider’=>$dataProvider,

                    'param'=&gt;&#036;param,


                    'tags'=&gt;&#036;tags,


		'usertype'=&gt;&#036;usertype));

can anyone explain what getparam(‘param’) and $this->render() do?

and where this ‘param’ variable coming from?

Thankyou in advance…

perochak · January 28, 2013, 6:25am

This part of code is about $_GET. it checks and gets the value for param if it is there in the query string.

this part of code render’s i.e. give the output of the code to a view.

nkhanna24 · January 28, 2013, 7:10am

Thanks…

but where can i find ‘param’ variable. Actually this code is in actionask() in fcontroller.php.

And i have a model question.php which have attributes qid,question(text),instituteid(int).

i have to view the question in index.php.

so where the condition is specified like (where(instituteid ==5))?

perochak · January 28, 2013, 7:44am

share the code so that I can tell you about it.

moreover, here param is just for demonstration.

we can have it as




CHtml::link('[age url',$this->createUrl('site/question',array('a'=>1)));

then we can get value of a in site/question action as




Yii::app()->request->getParam('a');