Setting default layout product detail page

Question

I'm customizing the layout in CE-1.9.2.2. After selecting a product in the grid, I get to the productdetails. This page is shown in 1column-layout. I want to use the 3column-layout in this view.

I know I can change the view for each product seperately, but I wan't it to be changed for all and as default.

Where do I look?

Answer 1

the fastest way is redifine the root template for those routes in a local.xml:

[root]/app/design/frontend/{your_package}/{your_theme}/layout/local.xml

Then apply this:

<reference name="root">
    <action method="setTemplate"><template>page/{your_template}.phtml</template></action>
</reference>

to all "product-list" related routes, these are:

<catalog_category_default/> 
<catalog_category_layered/>
<catalogsearch_result_index/>
<catalogsearch_advanced_result/>

for "product-view"

<catalog_product_view/>

So for the catalog_product_view route the complete code would be:

<?xml version="1.0"?>
<layout>
    <catalog_product_view>
        <reference name="root">
            <action method="setTemplate"><template>page/{your_template}.phtml</template></action>
        </reference>
    </catalog_product_view>

    ... other routes ...

</layout>