prestashop show out of stock in attribute dropdown

Question

I'm currently facing a problem which I can't fix maybe you can help me out.

I'm showing a dropdown with all the sizes. Now I want to show in the dropdown when a product is out of stock (out of stock) next to the size.

I have found a snipet which shows which products are out of stock:

    {foreach from=$combinations key=idCombination item=combination}
        {if $combination.quantity == 0}
            {assign var=attributes value=','|explode:$combination.list}
            {foreach from=$groups key=id_attribute_group item=group}
                {foreach from=$group.attributes key=id_attribute item=group_attribute}
                    {foreach from=$attributes item=attribute name=attribute}
                        {if $id_attribute == $attribute|substr:1:-1}
                            {$group_attribute} - {* if !$smarty.foreach.attribute.last}, {/if *}
                        {/if} 
                    {/foreach}
                {/foreach}
            {/foreach}                
        {/if}
    {/foreach}
{/strip}{/if}

It works but I rather want to show it in the dropdown. How can I get this?

update - the code that generates dropdown

<div id="attributes">
{foreach from=$groups key=id_attribute_group item=group}
{if $group.attributes|@count}
<fieldset class="attribute_fieldset">
<label class="attribute_label" for="group_{$id_attribute_group|intval}">{$group.name|escape:'htmlall':'UTF-8'} :</label>
{assign var="groupName" value="group_$id_attribute_group"}
<div class="attribute_list">



------   this is the select ----------------------
{if ($group.group_type == 'select')}
<select name="{$groupName}" id="group_{$id_attribute_group|intval}" class="attribute_selectt" onchange="findCombination();getProductAttribute();{if $colors|@count > 0}$('#wrapResetImages').show('slow');{/if};">
{foreach from=$group.attributes key=id_attribute item=group_attribute}
<option value="{$id_attribute|intval}"{if (isset($smarty.get.$groupName) && $smarty.get.$groupName|intval == $id_attribute) || $group.default == $id_attribute} selected="selected"{/if} title="{$group_attribute|escape:'htmlall':'UTF-8'}">{$group_attribute|escape:'htmlall':'UTF-8'}</option>
{/foreach}
</select>
 ------------ select endd ----------------



{elseif ($group.group_type == 'color')}
<ul id="color_to_pick_list" class="clearfix">
{assign var="default_colorpicker" value=""}
{foreach from=$group.attributes key=id_attribute item=group_attribute}
<li{if $group.default == $id_attribute} class="selected"{/if}>
<a id="color_{$id_attribute|intval}" class="color_pick{if ($group.default == $id_attribute)} selected{/if}" style="background: {$colors.$id_attribute.value} !important;" title="{$colors.$id_attribute.name}" onclick="colorPickerClick(this);getProductAttribute();{if $colors|@count > 0}$('#wrapResetImages').show('slow');{/if}">
{if file_exists($col_img_dir|cat:$id_attribute|cat:'.jpg')}
<img src="{$img_col_dir}{$id_attribute}.jpg" alt="{$colors.$id_attribute.name}" width="20" height="20" /><br>
{/if}
</a>
</li>
{if ($group.default == $id_attribute)}
{$default_colorpicker = $id_attribute}
{/if}
{/foreach}
</ul>
<input type="hidden" class="color_pick_hidden" name="{$groupName}" value="{$default_colorpicker}" />
{elseif ($group.group_type == 'radio')}
{foreach from=$group.attributes key=id_attribute item=group_attribute}
<input type="radio" class="attribute_radio" name="{$groupName}" value="{$id_attribute}" {if ($group.default == $id_attribute)} checked="checked"{/if} onclick="findCombination();getProductAttribute();{if $colors|@count > 0}$('#wrapResetImages').show('slow');{/if}">                                    {$group_attribute|escape:'htmlall':'UTF-8'}<br/>
{/foreach}
{/if}
</div>
</fieldset>
{/if}
{/foreach}
</div>

Answer 1

Heres one way by editing/overriding the Controller for Products. Tested on Prestashop 1.5.2

In controller ProductController you will see function assignAttributesGroups This handles the groups/attributes that are available for display on your views.

// wash attributes list (if some attributes are unavailables and if allowed to wash it)
if (!Product::isAvailableWhenOutOfStock($this->product->out_of_stock) && Configuration::get('PS_DISP_UNAVAILABLE_ATTR') == 0)
{
    foreach ($groups as &$group)
        foreach ($group['attributes_quantity'] as $key => &$quantity)
            if (!$quantity)
                unset($group['attributes'][$key]);

    foreach ($colors as $key => $color)
        if (!$color['attributes_quantity'])
            unset($colors[$key]);
}

You can see here, the attribute is removed from the available groups. If you want it to remain in the list override this function and controller recreating this function.

Change

if (!$quantity)
    unset($group['attributes'][$key]);

to

if (!$quantity)
    $group['attributes'][$key] .= " Sold Out";

For more info on PrestaShop and overriding see http://doc.prestashop.com/display/PS15/Overriding+default+behaviors