Magento – Showing all options in layered navigation

layered-navigationmagento-1

I have a dropdown attibute. It is visible in the layered navigation. But it always shows all the options. Even when one of the options is selected.

I think this is changed from the default setting by our previous web-builder.
I can't ask him anymore. Where do I have to look to change this back?

I have a little experience with Magento, but i can't find it.
Would love your help!

Best Answer

You can start from app\code\core\Mage\Catalog\Model\Layer\Filter\Attribute.php (it can be rewritten in the local pool or in the custom module) Note, the magento default function apply contains code that hides the options:

if ($filter && strlen($text)) {
        $this->_getResource()->applyFilterToCollection($this, $filter);
        $this->getLayer()->getState()->addFilter($this->_createItem($text, $filter));
        $this->_items = array();
}

Related Solutions

Magento – Custom from-to price filter in layered navigation

There 2 parts of the price filter in the layered navigation.

The first one is frontend, by default it is only list of ranges, but you can modify it to a dropdown, slider or from-to widget in the .phrml file.

The second part is the backend, that handles the price filer request and converts it to SQL query. To modify this part you need to rewrite class mage-catalog-model-layer-filer-price to accept values from the url and treat them as from-to boundaries and not as ranges.

Magento – Magento layered navigation filteration

You could store the filters in an array in session. Store using the category ID as a key, so that the wrong filters aren't applied when the user visits a different category.

As suggested by @Subesh, you can observe on controller_front_init_before, doing something like the following:

if ($category = Mage::registry('current_category')) {
    $session = Mage::getSingleton('customer/session');
    $categoryFilters = $session->getCategoryFilters() ? $session->getCategoryFilters() : array();

    // Check URL for attribute filters
    $layer = Mage::getSingleton('catalog/layer');
    $filterAttributes = array();
    foreach ($layer->getFilterableAttributes() as $attribute) {
        $value = $this->getRequest()->getParam($attribute->getAttributeCode());
        if ($value) {
            $filterAttributes[$attribute->getAttributeCode()] = $value;
        }
    }

    if (count($filterAttributes) > 0) {
        // Found filter attributes in URL - overwrite filters in session for this category
        $categoryFilters[$category->getId()] = $filterAttributes;
        $session->setCategoryFilters($categoryFilters);
    } elseif (isset($categoryFilters[$category->getId()]) {
        // No filter attributes in URL, but found them in session - apply to URL
        foreach ($categoryFilters[$category->getId()] as $attributeCode => $value) {
            $this->getRequest()->getParam($attributeCode, $value);
        }
    }
}

Untested, but this should put you in the right direction.

Best Answer

Related Solutions

Magento – Custom from-to price filter in layered navigation

Magento – Magento layered navigation filteration

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