If a product doesn't show on frontend, you should check the following:
- Status (should be enabled)
- Visibility (should be Catalog or Catalog, Search)
- Category association
- Website association
- Inventory (qty and Stock Availability)
If all these are configured correctly, and products still don't show up, you should check if you have installed a custom module that may affect product visibility on catalog pages.
See:
$product->getTypeInstance()->getProductByAttributes($attributesInfo, $product);
from Mage_Catalog_Model_Product_Type_Configurable
.
Edit:
This is a question like the catchy ones from job interviews.
Do you need this on configurable product page on frontend ?
In app/code/base/default/template/catalog/product/type/options/configurable.phtml
there is:
var spConfig = new Product.Config(<?php echo $this->getJsonConfig() ?>);
You need to extend this object. Either add your function in the class or extend an existing function that you'll need. http://prototypejs.org/learn/class-inheritance
In the JSON config passed to spConfig by default there is the options
key and a deeper products
key. You can use this config in your JS function. On any configurable product page copy paste the JSON object and format it with a tool for ease of understanding.
The JSON is built in Mage_Catalog_Block_Product_View_Type_Configurable::getJsonConfig()
.
In the JS class there is:
this.settings.each(function(element){
Event.observe(element, 'change', this.configure.bind(this))
}.bind(this));
In the configureElement
function there is the call:
this.reloadPrice();
In function reloadPrice
an iteration on the dropdowns is made.
Your code should mimic this iteration to check if all available dropdowns were selected.
On success your custom code comes in.
Is it an Ajax call to fetch dynamic content ? I would not recommend it. Instead try to have the dynamic content/data of associated products available in the rendered page in a JSON object handled by you custom JS class.
Best Answer
Mapping the attribute options in the dropdowns to actual products can be done by using the
spConfig
javascript variable printed on the product view page of every configurable product.Notice the
products
keys that have an array of product ids. Using some javascript that observes theonchange
event of your option dropdowns you should be able to work your way through the array ending up with the product the user has chosen.Now for mapping that to the product SKU, you're probably best of retrieving them from a custom javascript array which you can create by using the code from this article. So now for some untested code
Which would output an array like
That would enable you to map the product ID to the SKU you need.
I'd suggest creating a new PHTML file for this in your template directory, using block type
core/template
and calling that in thetemplate/catalog/product/view.phtml
.I'm no hero with Javascript so I didn't include any javascript code examples in my answer, I hope you can figure that part out for yourself.