call a snippet from inside revo into another snippet?

125 Posts

ad2003 Reply #1, 13 years, 5 months ago

Hi!

I am trying to get an external RSS feed call from one snippet into another.

I found something about it, but it was 7 years old...for evo - so maybe it's now more easy?

I tried it with "real" php files - and it works.

In modx revo I created a snippet like this:

require_once('getRss.php');
echo fetchFeed('http://www.amazon.de/rss/...');

It gets the "getRss.php" - but is it possible to easily include it from the snippets?

the contents are:

<?php
function fetchFeed($feed_url){
$output = '';
$content = file_get_contents($feed_url);
$feeditems = new SimpleXMLElement($content);
foreach($feeditems->channel->item as $entry){
$output .= "<a style='$color' href='$entry->link' title='$entry->title'>" . $entry->title . '</a><br />';
}
return $output;
}

I tried to make it static..but it is not the same...

Thank you!

AD

116 Posts

theboxer Reply #2, 13 years, 5 months ago

Hello,

I think you can make snippet right from content that you posted:

<?php
$output = '';
$content = file_get_contents($feed_url);
$feeditems = new SimpleXMLElement($content);
foreach($feeditems->channel->item as $entry){
$output .= "<a style='$color' href='$entry->link' title='$entry->title'>" . $entry->title . '</a><br />';
}
return $output;

You can name it for example getRss and you can call it with feed_url parameter to parse selected URL, example call could look like [[!getRss? &feed_url=`http://www.amazon.de/rss`]].

If you want to call this snippet from some other snippet, you can use MODx api method runSnippet that is described here: http://rtfm.modx.com/display/revolution20/modX.runSnippet

And I strongly recommend to not mix html and php code in snippet. Create a chunk and parse output by chunk. More about parsing chunks is here: http://rtfm.modx.com/display/revolution20/modX.getChunk and http://rtfm.modx.com/display/revolution20/modX.parseChunk

--
John
@theboxer

125 Posts

ad2003 Reply #3, 13 years, 5 months ago

Quote from: TheBoxer at May 07, 2013, 04:18 PM

Hello,

I think you can make snippet right from content that you posted:

<!--?php
$output = '';
$content = file_get_contents($feed_url);
$feeditems = new SimpleXMLElement($content);
foreach($feeditems--->channel->item as $entry){
$output .= "<a style="$color" href="$entry->link" title="$entry->title">" . $entry->title . '</a>
';
}
return $output;

Hi John,

thank you very much for the suggestions and links!

[[!getRss? &feed_url=`http://www.amazon.de/rss`]]

"Ay caramba!"
It's working.

Thank you!!!

AD