Magento – How to get product zoom extensions to work in custom theme

I finally found the reason for the problem and the solution:

The problem: SOAPv2 with WS-I does not use the single_data and multi_data attributes. Therefore the check in /app/code/core/Mage/Catalog/Model/Product/Api/V2.php in _prepareDataForSave fails. The method _prepareDataForSave checks for single_data and multi_data which are both not part of the SOAP-Call, according to the WSDL for SOAPv2 with WS-I.

SOAPv2 (WSDL) - catalogProductCreateEntity:

<element name="additional_attributes" type="typens:catalogProductAdditionalAttributesEntity" minOccurs="0"/>

SOAPv2 with WS-I (WSDL) - catalogProductCreateEntity:

<xsd:element name="additional_attributes" type="typens:associativeArray" minOccurs="0">
</xsd:element>

associativeArray is of type associativeEntity which includes key/value pairs. In SOAPv2 withous WS-I, the catalogProductAdditionalAttributesEntity is used (which consists of single_data and/or multi_data values which again include key/value pairs).

This is the SOAPv2 WS-I part of the WSDL which describes the format of additional_attributes:

<xsd:complexType name="associativeEntity">
   <xsd:sequence>
      <xsd:element name="key" type="xsd:string"/>
      <xsd:element name="value" type="xsd:string"/>
   </xsd:sequence>
</xsd:complexType>
<xsd:complexType name="associativeArray">
   <xsd:sequence>
      <xsd:element minOccurs="0" maxOccurs="unbounded" name="complexObjectArray" type="typens:associativeEntity"/>
   </xsd:sequence>
</xsd:complexType>

The check for additional_attributes /app/code/core/Mage/Catalog/Model/Product/Api/V2.php worded fine, but the check for single_data or multi_data always returned false.

The solution:

I found another SOAP Problem here where the last answer was the solution to my problem: https://stackoverflow.com/a/9502311/865443). So I put this block in my code in _prepareDataForSave which solved the problem of setting the additional_attributes values:

if (gettype($productData->additional_attributes) == 'array') {
            foreach ($productData->additional_attributes as $k => $v) {
                    $_attrCode = $k;
                    $productData->$_attrCode = $v;
            }
  }

I hope this helps someone else encountering the same problem. I would also appreciate an explanation for this differencde between SOAPv2 and SOAPv2 WS-I and/or other ways which solved this problem.

it took me a while to figure this out. Should work for you, if you customy it for your needs.

To list products affected by a price rule, you must make your way over the rule-model.

Here is the code:

<?php
// we need the date to filter for the special price
    $dateToday = date('m/d/y'); 
    $tomorrow = mktime(0, 0, 0, date('m'), date('d')+1, date('y'));
    $dateTomorrow = date('m/d/y', $tomorrow);

// this gets the product collection and filters for special price;
// grabs products with special_from_date at least today, and special_to_date at least tomorrow
        $_productCollection = Mage::getModel('catalog/product')->getCollection()
            ->addAttributeToFilter('special_from_date', array('date' => true, 'to' => $dateToday))
            ->addAttributeToFilter('special_to_date', array('date' => true, 'from' => $dateTomorrow))
            ->load();

// this loads the standard magento catalog proce rule model
        $rules = Mage::getResourceModel('catalogrule/rule_collection')->load();

// read: if there are active rules
        if($rules->getData()) {
            $rule_ids = array(); // i used this down below to style the products according to which rule affected
            $productIds[] = array(); // this will hold the ids of the products

            foreach($rules as $rule) {
                $rule_ids[] = $rule->getId();
                $productIds = $rule->getMatchingProductIds(); // affected products come in here
            }

// merge the collections: $arr is an array and keeps all product IDs we fetched before with the special-price-stuff
            $arr = $_productCollection->getAllIds();
            if($productIds) {
                // if there are products affected by catalog price rules, $arr now also keeps their IDs
                $arr = array_merge($arr,$productIds);
            }

// we initialize a new collection and filter solely by the product IDs we got before, read: select all products with their entity_id in $arr
            $_productCollection = Mage::getModel('catalog/product')->getCollection()
                ->addAttributeToFilter('entity_id',array('in'=>$arr))
                ->load();
        }

== UPDATE ==

I added some comments to the code and renamed $skus to $productIds (which fits better).

If you are still getting errors, please let me know what's exactly happening. This code is tested for Magento v1.7.0.2.

Cheers
Simon