foreach error in snippet

101 Posts

mintnl Reply #1, 13 years, 10 months ago

Hi,
I dont know if this is the right place....
Im working on an event extra for my hobby; regatta sailing

I have a page that is returning table rows (events) with a link in there:

<a href='[[~134? &evid=`".$id."`]]&iframe=true&width=800&height=650' >link</a>

The page that is loaded in the iframe is a table with the subscribed people for that event.
The header should load saying something like: "This and That Event - 2012", however this doesn't work (anymore?)
The page correctly loads the package to let xPDO interact with the tables
The page consists of:

....
[[!Events.Subscribers.Header? &id=`[[!Events.Subscribers.EventID]]`]]
....

Events.Subscribers.Header snippet looks like this:

<?php
$query = $modx->newQuery('Ev');
$query->sortby('ev_id','ASC');
$query->limit(2);
$query->where(array(
   'ev_id' => $id,
));
$evs = $modx->getCollection('Ev',$query);
foreach($evs as $e) {
$string =  "<h3>Deelnemers ".$e->get('ev_naam')." ".$e->get('ev_jaar')."</h3>";
}
return $string;

This works most "first" times, after clicking another link, or another, or another, ans so on i get:

Warning: Invalid argument supplied for foreach() in /home/xxx/domains/xxx.yyy/public_html/core/cache/includes/elements/modsnippet/99.include.cache.php on line 16

where the header should be. I don't get it...

Can anyone help?
Michiel

This question has been answered by mintnl. See the first response.

[ed. note: mintnl last edited this post 13 years, 10 months ago.]

Addict since 2012....

24,544 Posts

BobRay Reply #2, 13 years, 10 months ago

You have '&evid' in your tag and 'ev_id' in your snippet. Could that be it?

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101 Posts

mintnl Reply #3, 13 years, 10 months ago

Hi BobRay,

No thats not it

[[!Events.Subscribers.EventID]]

takes the $_GET['evid'] and returns that into the Events.Subscribers.Header snippet as $id.

Thanks fort looking into it. But i fixed it the other way around.
Just passed the header directly into the url of the resource as an $_GET with urlencode en urldecode.

Cheers Michiel

Addict since 2012....

Answered foreach error in snippet