Get custom data in item collection array

Question

This is somewhat confusing.. I hope my explanation is clear.

As we all know magento converts a php object(I don't know what it is exactly) to an Array by using:

$item->getData();    // Where $item is an item from a product collection

The above code does covert the object to an Array, but I want to add my own custom fields to it.

So, I tried the following while preparing the collection

foreach($collection as $item){
    $item->setData('custom_field', $value);  // Also tried $item->setCustomField($value);
}

By doing the above, I can get the custom_field value by doing $item->getCustomField() or $item->getData('custom_field'); but I can't see this custom_field key in array when I am doing

$item->getData();

For Example:

Let us say, If I do

echo $item->getData();

I can see the following array in dump:

array(4) {
  ["entity_id"] => string(3) "623"
  ["type_id"] => string(12) "configurable"
  ["created_at"] => string(19) "2012-07-30 22:14:09"
  ["updated_at"] => string(19) "2014-01-04 02:02:08"
}

But I want to see the following Array:

array(5) {
  ["entity_id"] => string(3) "623"
  ["type_id"] => string(12) "configurable"
  ["created_at"] => string(19) "2012-07-30 22:14:09"
  ["updated_at"] => string(19) "2014-01-04 02:02:08"
  ["custom_field"] => string(5) "Hello"
}

Maybe if you gave us an idea of what you are trying to achieve here, if you set the data and then in the loop call getData then it will be returned. — David Manners
– David Manners, Commented May 16, 2014 at 15:30
Like David said, we're going to need a little more detail about what you're ultimately trying to do. Maybe you need to create a product attribute that will store the data you're trying to save? — andyjv
– andyjv, Commented Aug 12, 2014 at 12:48
@andyjv I want to have my custom_field value in $item->getData(). Anyway, I got the answer below. (I just forgot to mark it) — Mr_Green
– Mr_Green, Commented Aug 12, 2014 at 14:52

Bio · Accepted Answer · 2014-05-13 06:19:05Z

3

I think you just need to save your item , then you can use it :

       foreach($collection as $item){
            $item->setData('custom_field', $value);  // or $item->setCustomField($value);
            $item->save();
        }
var_dump($collection->getFirstItem()->getData()); // print first item

answered May 13, 2014 at 6:19

Bio

3541 silver badge3 bronze badges

Thanks... Wouldn't that effect performance? because saving each item in the collection is I think doing db query for each item..

Mr_Green
– Mr_Green

2014-05-13 06:23:45 +00:00
Commented May 13, 2014 at 6:23
Yes, that's not good for performance . The best way is to add your custom field in your product collection before with $products = Mage::getResourceModel('catalog/product_collection') ->addAttributeToSelect('custom_field'); (depends on how your custom field is stored)

Bio
– Bio

2014-05-13 06:27:34 +00:00
Commented May 13, 2014 at 6:27
How to do that? also I tried $item->save().. I still can't see my custom field..

Mr_Green
– Mr_Green

2014-05-13 06:29:31 +00:00
Commented May 13, 2014 at 6:29
$item->save() literally saves the item to the database, so if the fields aren't originally a part of the collection then it can't be saved because there is no spot in the database for it.

andyjv
– andyjv

2014-08-12 12:46:48 +00:00
Commented Aug 12, 2014 at 12:46
Not a good performing ans, looping can make page too much slow to load.

Amit Dwivedi
– Amit Dwivedi

2015-08-20 12:50:04 +00:00
Commented Aug 20, 2015 at 12:50

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