Use PHP var in Wayfinder?

330 Posts

meltingdog Reply #1, 13 years, 9 months ago

I have a snippet which gets document IDs from the DB.

I want to out put these in a menu with Wayfinder but am having trouble getting it to work. Does anyone know the correct way of placing a PHP var within Wayfinder?

Tried this but no luck:

echo '[[Wayfinder? &includeDocs=`' . $docid . '`]]';

(Would getResources be better?)

http://radianweb.com.au

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24,524 Posts

sottwell Reply #2, 13 years, 9 months ago

There are several "proper" ways to do this. One way would be to have your snippet return its list of docids as a comma-delimited string, and use the snippet in a Wayfinder call

[[Wayfinder? &includeDocs=`[[MySnippet]]`]]

Or you could run your snippet before you run the Wayfinder snippet, and put the string of docids into a placeholder http://rtfm.modx.com/display/revolution20/modX.setPlaceholder

[[MySnippet]]
[[Wayfinder? &includeDocs=`[[+docids]]`]]

You really don't want to have the Wayfinder snippet being run over again for each ID. Run it once with the full list of IDs your snippet gathers.

Rule #1 of snippets is don't use echo. Gather up your values into a variable and return that instead. http://rtfm.modx.com/display/revolution20/Snippets

You could also use the runSnippet() API function if you need to run one snippet inside of another one. http://rtfm.modx.com/display/revolution20/modX.runSnippet

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330 Posts

meltingdog Reply #3, 13 years, 9 months ago

Thanks!

I have tried option one, but what is the correct way of out putting from my snippet? I am using return, eg:

return implode(',', $docarray);

This gives the correct string, (eg 12, 14, 15) but still wont work with Wayfinder

Quote from: sottwell at Dec 17, 2012, 07:05 PM

There are several "proper" ways to do this. One way would be to have your snippet return its list of docids as a comma-delimited string, and use the snippet in a Wayfinder call
[[Wayfinder? &includeDocs=`[[MySnippet]]`]]
Or you could run your snippet before you run the Wayfinder snippet, and put the string of docids into a placeholder http://rtfm.modx.com/display/revolution20/modX.setPlaceholder
[[MySnippet]]
[[Wayfinder? &includeDocs=`[[+docids]]`]]
You really don't want to have the Wayfinder snippet being run over again for each ID. Run it once with the full list of IDs your snippet gathers.

Rule #1 of snippets is don't use echo. Gather up your values into a variable and return that instead. http://rtfm.modx.com/display/revolution20/Snippets

You could also use the runSnippet() API function if you need to run one snippet inside of another one. http://rtfm.modx.com/display/revolution20/modX.runSnippet

http://radianweb.com.au

☆ A M B ☆
24,524 Posts

sottwell Reply #4, 13 years, 9 months ago

I'm pretty sure that you still need to specify a startId in your Wayfinder snippet. The includeDocs property will just limit the docs to the ones specified.

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Tips and Tricks from the MODX Forums and Slack Channels - http://modxcookbook.com
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