how to create new custom options type in magento?

Question

How to create new product custom options type in magento, for example I have to give new image custom option type in magento which fetch image from my custom module table and I want to assign that image to my custom options image field .

Answer 1

As Dustin Graham said, it is very tricky. First steps:

1. Add new node under global/catalog/product/options/custom/groups. See examples in /app/code/core/Mage/Catalog/etc/config.xml.

2. Create new block to render your custom option.

3. Rewrite Mage_Catalog_Model_Product_Option and implement saving your custom type options (saveOptions() method) and loading your custom type options (getProductOptionCollection method).

If your custom type isn't very custom :) - it should be enough.