Subesh Pokhrel's Blog – Magento Development Tips,PHP,Google Maps

Adding custom option in Magento is pretty easy! You just need to know the format of an array, which is taken by catalog/product_option Model to set the custom option. I’ve deviced a simple function (setCustomOption) that just does that. The function, according to the input type and values assigned creates an array, which is then used by the catalog/product_option Model to save the option to the product.

Here is the function.

/**
	 * @param $value - Must be comma seperated options.
	 * @param $title - Title of the custom option.
	 * @param $type - Type of custom option - drop_down,radio,checkbox,multiple,area,field.
	 * @param $noOption - Specifies if the custom options has options or not.
	 */
	function setCustomOption ($value, $title, $type, $noOption = false)
	{
		$custom_options = array();
		if ($type && $value != "" && $value) {
			$values = explode(',', $value);
			if (count($values)) {
				/**If the custom option has options*/
				if (! $noOption) {
					$is_required = 0;
					$sort_order = 0;
					$custom_options[] = array(
						'is_delete' => 0 , 'title' => $title , 'previous_group' => '' , 'previous_type' => '' , 'type' => $type , 'is_require' => $is_required , 'sort_order' => $sort_order , 'values' => array()
					);
					foreach ($values as $v) {
						$titleopt = ucfirst(trim($v));
						switch ($type) {
							case 'drop_down':
							case 'radio':
							case 'checkbox':
							case 'multiple':
							default:
								$title = ucfirst(trim($v));
								$custom_options[count($custom_options) - 1]['values'][] = array(
									'is_delete' => 0 , 'title' => $titleopt , 'option_type_id' => - 1 , 'price_type' => '' , 'price' => '' , 'sku' => '' , 'sort_order' => ''
								);
							break;
						}
					}
					return $custom_options;
				}
				/**If the custom option doesn't have options | Case: area and field*/
				else {
					$is_required = 0;
					$sort_order = '';
					$custom_options[] = array(
						"is_delete" => 0 , "title" => $title , "previous_group" => "text" , "price_type" => 'fixed' , "price" => '' , "type" => $type , "is_required" => $is_required
					);
					return $custom_options;
				}
			}
		}
		return false;
	}

And to save the custom option, first get the array built by the above function and pass it to the catalog/product_option Model’s function to save. Here’s how you do it.

$arrayOption = array();
	/**
	 * For Creating dropdown,select,multiselect,radio type of custom option
	 */
	$arrayOption[] = setCustomOption("OPT1,OPT2", "Select Option", "drop_down");
	/**
	 * For Creating textfield and textarea type of custom option
	 */
	$arrayOption[] = setCustomOption("Anyvalue", "Area", "area", true);
	/**
	 * Load the product you want to assign custom option to
	 */
	$product = Mage::getModel("catalog/product")->load(167);
	foreach ($arrayOption as $options) {
		foreach ($options as $option) {
			$opt = Mage::getModel('catalog/product_option');
			$opt->setProduct($product);
			$opt->addOption($option);
			$opt->saveOptions();
		}
	}

After running the code you will get something like this.

Custom Option added to a Product

Hope you like this post!

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