I want to add stock labels to the options fields of my configurable products, but I don't understand how it works in Magento. I have read that I have to use the Mage_Catalog_Block_Product_View_Type_Configurable class. So I have created a little extension which uses this class, but there are some issues with my extension and I think this issuses exists because of a lack of knowledge.
Details:
My configurable products have configurable attributes like the following:
Furthermore if someone choose an option he will get something like this:
This looks great so far, but the values are sadly not correct.
Here is the core class of my extension:
<?php
class Fox_OutOfStockLabel_Block_Configurable extends
Mage_Catalog_Block_Product_View_Type_Configurable
{
public function getJsonConfig()
{
$store = Mage::app()->getStore();
$attributes = array();
$options = array();
$allowedProducts = $this->getAllowProducts();
$allowedAttributes = $this->getAllowAttributes();
foreach ($allowedProducts as $product) {
$productId = $product->getId();
foreach ($allowedAttributes as $attribute) {
$productAttribute = $attribute->getProductAttribute();
$attributeId = $productAttribute->getId();
$attributeCode = $productAttribute->getAttributeCode();
$attributeValue = $product->getData($attributeCode);
$attributeLabel = $product->getAttributeText($attributeCode);
$qty = floor($product->getStockItem()->getQty());
if (!isset($options[$attributeId])) {
$options[$attributeId] = array();
}
if (!isset($options[$attributeId][$attributeValue])) {
$options[$attributeId][$attributeValue] = array();
}
$options[$attributeId][$attributeValue][] = $productId;
$options['qty'][$attributeLabel] = $qty;
}
}
$this->_resPrices = array(
$this->_preparePrice($this->getProduct()->getFinalPrice())
);
foreach ($allowedAttributes as $attribute) {
$productAttribute = $attribute->getProductAttribute();
$attributeId = $productAttribute->getId();
$attributeCode = $productAttribute->getAttributeCode();
$attributeLabel = $attribute->getLabel();
$info = array(
'id' => $attributeId,
'code' => $attributeCode,
'label' => $attributeLabel,
'options' => array()
);
$optionPrices = array();
$prices = $attribute->getPrices();
if (is_array($prices)) {
foreach ($prices as $value) {
if (!$this->_validateAttributeValue($attributeId, $value, $options)) {
continue;
}
$label = $value['label'].$this->__(' (Out of stock)');
if ($options['qty'][$value['label']] > 0) {
$label = $value['label'].$this->__(' (%s in stock)', $options['qty'][$value['label']]);
}
$info['options'][] = array(
'id' => $value['value_index'],
'label' => $label,
'price' => $this->_preparePrice($value['pricing_value'], $value['is_percent']),
'qty' => isset($options[$attributeId][$value['label']]) ? $options[$attributeId][$value['label']] : array(),
'products' => isset($options[$attributeId][$value['value_index']]) ? $options[$attributeId][$value['value_index']] : array(),
);
$optionPrices[] = $this->_preparePrice($value['pricing_value'], $value['is_percent']);
}
}
foreach ($optionPrices as $optionPrice) {
foreach ($optionPrices as $additional) {
$this->_preparePrice(abs($additional - $optionPrice));
}
}
if ($this->_validateAttributeInfo($info)) {
$attributes[$attributeId] = $info;
}
}
$_request = Mage::getSingleton('tax/calculation')->getRateRequest(false, false, false);
$_request->setProductClassId($this->getProduct()->getTaxClassId());
$defaultTax = Mage::getSingleton('tax/calculation')->getRate($_request);
$_request = Mage::getSingleton('tax/calculation')->getRateRequest();
$_request->setProductClassId($this->getProduct()->getTaxClassId());
$currentTax = Mage::getSingleton('tax/calculation')->getRate($_request);
$taxConfig = array(
'includeTax' => Mage::helper('tax')->priceIncludesTax(),
'showIncludeTax' => Mage::helper('tax')->displayPriceIncludingTax(),
'showBothPrices' => Mage::helper('tax')->displayBothPrices(),
'defaultTax' => $defaultTax,
'currentTax' => $currentTax,
'inclTaxTitle' => Mage::helper('catalog')->__('Incl. Tax'),
);
$config = array(
'attributes' => $attributes,
'template' => str_replace('%s', '#{price}', $store->getCurrentCurrency()->getOutputFormat()),
// 'prices' => $this->_prices,
'basePrice' => $this->_registerJsPrice($this->_convertPrice($this->getProduct()->getFinalPrice())),
'oldPrice' => $this->_registerJsPrice($this->_convertPrice($this->getProduct()->getPrice())),
'productId' => $this->getProduct()->getId(),
'chooseText' => Mage::helper('catalog')->__('Option wählen...'),
'taxConfig' => $taxConfig,
);
return Mage::helper('core')->jsonEncode($config);
}
}
This will create the output from above. This output is not correct and it seems that the options will be overwritten at this position:
$options['qty'][$attributeLabel] = $qty;
because I have multiple products with the same attribute label. To avoid this behaviour I could change it to:
$options['qty'][$attributeLabel][$productId] = $qty;
But is this correct and the right way I have to go? I don't know, because I don't know when Magento will call the function getJsonConfig. Currently it seems that Magento is calling this function only if I visit the detail page of a configurable product, but Magento should calling this function after the selection of an option too, so that the options will be updated or am I wrong?
