yii tbgridview. showing only paritcular row data - php

Question

I have a inventory table. Now, using this table, I want to show the data on Pharmacy module in a Tbgridview such that it only displays those inventories from the Pharmacy store. i.e. row with category_id=2.
How, can I do this on the drug's index page. This is the code for index page of Pharmacy.
<?php
$this->menu=array(
array('label'=>'Add Drug', 'icon'=>'icon-plus', 'url'=>Yii::app()->controller->createUrl('create'), 'linkOptions'=>array()),
array('label'=>'List Drugs', 'icon'=>'icon-th-list', 'url'=>Yii::app()->controller->createUrl('index'),'active'=>true, 'linkOptions'=>array()),
array('label'=>'List Orders', 'icon'=>'icon-th-list', 'url'=>Yii::app()->controller->createUrl('PhOrder/index'), 'linkOptions'=>array()),
array('label'=>'List Distributors', 'icon'=>'icon-th-list', 'url'=>Yii::app()->controller->createUrl('PhDistributor/index'), 'linkOptions'=>array()),
);
?>
<div>
<?php ?>
<?php
$model= new Inventory;
$this->widget('bootstrap.widgets.TbGridView',array(
'id'=>'ph-drug-grid',
'dataProvider'=>$model->search(),
'type'=>'bordered condensed',
'template'=>'{summary}{pager}{items}{pager}',
'columns'=>array(
array(
'header'=>'S. N. ',
'value'=>'$data->inventory_code',
'type'=>'raw',
),
'description',
'manufacturer',
'minimum_order_level',
'store_id',
'stock_quantity',
array(
'header'=>'<a>Actions</a>',
'class'=>'bootstrap.widgets.TbButtonColumn',
'template' => '{dispose}',
'buttons' => array(
'dispose' => array(
'label'=>'Dispose',
'options'=>array(
'class'=>'btn btn-small',
'onclick'=>'return confirm("Are you sure, you want to dispose this drug?")'
),
)
),
'htmlOptions'=>array('nowrap'=>'nowrap'),
)
),
)); ?>
</div>

Answer 1

set attributes of your model, then if they are filtered in search() function of model Inventory, then result will get filtered
$model= new Inventory;
$model->category_id = 2;

Answer 2

you can also use CSqlDataProvider in your controller
$sql='select * from inventory where category_id=2';
$count=Yii::app()->db->createCommand('select count(*) from inventory where category_id=2')->queryScalar();
$dataProvider = new CSqlDataProvider($sql, array(
'totalItemCount'=>$count,
'keyField' => 'id',
'pagination'=>array(
'pageSize'=>10,
),
));
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