Matrix inside Playa inside Matrix

Question

I'm just upgrading a site from EE1 to EE2 and this code is no longer working in EE2:

{exp:channel:entries}
    {matrix}
        {playa}
            {title}
            {matrix}
                {deep_value}
            {/matrix}
        {/playa}
    {/matrix}
{/exp:channel:entries}

{title} displays fine, but the {deep_value} does not. This used to work in EE1, does anyone know of a work around?

Answer 1

It’s actually just sheer luck that that worked for you in EE1 – there are a lot of variables at play with EE’s parse order, and most of the time that kind of thing won’t work.

You can get it working using Matrix and Playa’s var_prefix parameters, though:

{exp:channel:entries}
    {matrix}
        {playa var_prefix="playafield"}
            {playafield:title}
            {playafield:matrix var_prefix="nested_matrix"}
                {nested_matrix:deep_value}
            {/playafield:matrix}
        {/playa}
    {/matrix}
{/exp:channel:entries}

(You’d probably want to choose more semantic var prefixes than “playafield” and “nested_matrix” but hopefully you get the idea.)

Answer 2

A simple work around would be to use an embed and pass the associated entry id through to that. It's probably not the most efficient method, but it should avoid the issue with nesting a mat

e.g.

=== display.html ===

{exp:channel:entries}
    {matrix}
        {playa}
           {embed="embeds/deepinfo" entry_id="{entry_id}"
        {/playa}
    {/matrix}
{/exp:channel:entries}

=== embeds/deepinfo.html ===

{exp:channel:entries entry_id="{embed:entry_id}"}
    {title}
    {matrix}
        {deep_value}
    {/matrix}
{/exp:channel:entries}

Answer 3

I'm sorry for not putting my answer here. I have already posted my answer on similar question. Here is the link to ANSWER