Yii: Retrieving data using Cdbcriteria - php

Question

I am yiibie. What I am trying to do is to retrieve data from my database, and for that i am using cDbCriteria. I want to get the last 4 images from my database table which is named Event. and then want to display those 4 images individually. I am using this method but not getting any result, please help me with this.
<?php
$Criteria = new CDbCriteria();
$Criteria->limit = 4;
$Criteria->order = "image DESC";
$Criteria->select = "id, image";
$Events = Event::model()->findAll($Criteria);
foreach ( (array)$Events as $Event)
{
$Event[1]=$image1;
$Event[2]=$image2;
$Event[3]=$image3;
$Event[4]=$image4;
}
?>
<div class="row">
<h3>Events</h3>
<div class="col-md-3">
<div class="thumbnail">
<img src="<?php echo $image1 ?>">
<div class="caption">
<button class="btn btn-primary center-block">Join</button>
</div>
</div>
</div>

Answer 1

findAll() method retrieves an array of ActiveRecords, so you need a foreach loop. Try:
foreach ( (array)$Events as $Event)
{
echo "
<div class='col-md-3'>
<div class='thumbnail'>
<img src='$Event->image' >
<div class='caption'>
<a href='join.php'><button class='btn btn-primary center-block'>Join</button></a>
</div>
</div>
</div>
";
}

Answer 2

$Criteria = new CDbCriteria();
$Criteria->limit = 4;
$Criteria->order = "id DESC";
$Criteria->select = "id, image";
$Events= Event::model()->findAll($Criteria);
This will gives last 4 records
1st way
if(isset($Events[0]))
echo $Events[0]->image;
if(isset($Events[1]))
echo $Events[1]->image;
if(isset($Events[2]))
echo $Events[2]->image;
if(isset($Events[3]))
echo $Events[3]->image;
i am here checking isset() because there may b 3 entry. This is static
2nd way
foreach($Events as $event)
{
echo $event->image;
}
this is dynamic binding.