FindBySql in yii returns null value - php

Question

I am new to yii. I am facing a proble with findBySql Method. While i am trying to get a record through passing Mysql query and parameter, it returns me a null value.
Here my code looks like this..
In Model i have defined a function getCountry() to get the country name.
class StateMaster extends CActiveRecord
{
public function tableName()
{
return 'T_State_Master';
}
public function getCountry($c_id)
{
//return array(StateMaster::model()->findBySql("select C_Name from T_Country_Master where C_Id=:CountryId;",array(':CountryId'=>$c_id)));
$result = array(StateMaster::model()->findBysql("select C_Name from T_Country_Master where C_Id={$c_id}"));
return $result;
}
/**
* Returns the static model of the specified AR class.
* Please note that you should have this exact method in all your CActiveRecord descendants!
* #param string $className active record class name.
* #return StateMaster the static model class
*/
public static function model($className=__CLASS__)
{
return parent::model($className);
}
}
Then in my view file trying to get the country name by providing the Country Id to it.
<?php $this->widget('zii.widgets.CDetailView', array(
'data'=>$model,
'attributes'=>array(
array(
'label'=>'State Name',
'value'=>$model->S_Name,
),
array(
'label'=>'Country Name',
'value'=>$model->getCountry($model->C_Id),
),
array(
'label'=>'Created Date',
'value'=>Yii::app()->dateFormatter->format("dd-MMM-yyyy", $model->CreatedDt),
),
array(
'label'=>'Created By',
'value'=>$model->CreatedBy,
),
),
)); ?>
whether i wonder why is it not giving me the result.
I have checked the parameter passed into it and its successfully passing.
Please give me solution.
Thanks in advance

Answer 1

change your function to this:
public function getCountry($c_id)
{
$query = "select C_Name from T_Country_Master where C_Id={$c_id}";
//return Yii::app()->db->createCommand($query)->queryAll(); // returns an array, so in your detail view, you must handle it first
return Yii::app()->db->createCommand($query)->queryScalar();
}

Answer 2

Try this way, but if i were you, i will use first one.
public function getCountry($c_id)
{
$query = "select C_Name from T_Country_Master where C_Id={$c_id}";
return Yii::app()->db->createCommand($query)->queryScalar();
}
OR
public function getCountry($c_id)
{
$criteria = new CDbCriteria;
$criteria->select="C_Name";
$criteria->addCondition('C_Id = $c_id');
$result = StateMaster::model()->find($criteria);
return $result;
}