Difference For Find() And Findall()

Yii 1.1 General Discussion
1

Is it true that if I have a table:

entry id | crop id | price

1 | 3 | 90.00

2 | 3 |100.00

With this code: if $crop_id = 3




$price=Price::model()->find('crop_id = :cropId', array(

						':cropId' => $cropId

						) );

It only returns the field of the first row. 1 | 3 | 90.00

With this code:




$price=Price::model()->findAll('crop_id = :cropId', array(

						':cropId' => $cropId

						) );

It returns all the field of the crop_id = 3

thus returning 1 | 3 | 90.00 and 2 | 3 | 100.00

If it is true, how can I price[0] or price[1]?? Because it spouts an error.

2

Yes, it’s true. Find returns one record, and findAll returns array of records.

So you can do $items = findAll(…) and then use $items[0] etc.

I have no idea why you’re getting the error. Maybe the result was empty or null.

You can use print_r to see what has happened.

3

actually findAll can return associative array with key values equal to some field passed as ‘index’ in criteria object. If so - ‘0’ and ‘1’ can be invalid array keys. you should print_r($price) to check what exactly is returned or use safe iteration like:




foreach( $price as $p ) {}
4 

$price=Price::model()->findAll('crop_id = :cropId', array(

                                                ':cropId' => $cropId

                                                ) );

If you do this then, you can obtain result as such.




foreach($price as $object) {

echo $object -> entry_id;

}

if you need in an array with index 0, 1. you can push it in an array within foreach loop.




$entryID = array();

foreach($price as $object) {

array_push($entryID, $object->entry_id);

}

Now you have your entry id in an array with index 0, 1 …

Try It!

5

Hi,

Not that I have anything to add to this just would like to say thank you for giving this information as it helped me with a related problem.

6

try to use foreach to loop through…


foreach($product as $products)

        {

        }




//example would be

$product =Product::model()->findAll();

        $productsArray = array();

        foreach($product as $products)

        {

            $productsArray[] = array(

                'id' => $products->id,

                'name' => $products->name,


                'description' => $products->description,

             

            );

        }

you can loop through like this…

hope this helps…

Thanks,