Snippet to detect tv in getRecources

93 Posts

wilbobaggins Reply #1, 13 years, 7 months ago

Hi there,

I have a tv to set a thumbnail image for a news article, the thumbnail is then displayed in the article summary on the articles page created using getResources - very standard stuff.
I'm trying to write a snippet to test whether or not the thumbnail tv ios set or not - if it is set then I want the thumbnail to display if not then I don't.

so far I have this:

/* Get the TV */
$tv = $modx->getObject('modTemplateVar',array('name'=>'pageThumb')); //pageThumb is the name of the tv

/* get the raw content of the TV */
$rawValue = $tv->getValue($id); //$id is the id of the news article page, passed to the snippet via the snippet call

if($rawValue != ''){

$output = $modx->getChunk('summaryBoxImage');
return $output;

}

Based on the Bob's guides article: http://bobsguides.com/revolution-objects.html

But it doesn't work.

Any help would be greatly appreciated.

Thanks in advance!

24,544 Posts

BobRay Reply #2, 13 years, 7 months ago

Could you give more details about what you're seeing? "Doesn't work" is kind of vague. wink

Are you testing the snippet on its own before putting it in the getResources tag (a good idea)?

Also, try this:

/* Get the TV */
$tv = $modx->getObject('modTemplateVar',array('name'=>'pageThumb')); //pageThumb is the name of the tv
 
if (!$tv) {
   return 'Could not get TV';
}
/* get the raw content of the TV */
$rawValue = $tv->getValue($id); //$id is the id of the news article page, passed to the snippet via the snippet call
 
if($rawValue != ''){
    $output = $modx->getChunk('summaryBoxImage');
    return $output;
} else {
    return 'rawValue is empty';
}

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342 Posts

Willi Waizenegger Reply #3, 13 years, 7 months ago

Hopefully, I understand what is you're trying to do:

Does it have to be within the getResources code? If you can do your solution on the page, I usually use the If component and set up the code using something like this:

[[!If? &subject=`[[+tv.yourTV]]` &operator=`empty` &then=`` &else=`<div id="div_to_float_left_or_right_of_summary"><img src="[[+tv.yourTV]]" /></div>`]]

Then, set up the CSS to make that div float left or right. If there is nothing within the

[[+tv.yourTV]]

...then no sweat. It just doesn't appear. The rest of the summary's css should be written to fill up the space. Did that make sense?

[ed. note: waizen last edited this post 13 years, 7 months ago.]