Help expanding upon the Related Pages TV tutorial

18 Posts

rcarnrick Reply #1, 10 years, 2 months ago

I was able to implement this wonderful tutorial into a the backend (https://rtfm.modx.com/revolution/2.x/making-sites-with-modx/customizing-content/template-variables/creating-a-multi-select-box-for-related-pages-in-your-template)

However I was wondering if anyone had experience with pulling in TVs also with this? This outputs perfectly but I can't seem to be able to grab specific tv's related to the document.

Hitting a wall and any help would be appreciated.

if (empty($input)) { return ''; }
$tpl = $modx->getOption('tpl',$scriptProperties,'relatedPagesTpl');
if ($modx->getChunk($tpl) == '') { return 'Missing Tpl!'; }

$ids = explode(',', $input);

$output = array();

foreach ($ids as $key => $value) {
  $resource = $modx->getObject('modResource',array('published' => 1,'id' => $value)) [b]&& $modx->getObject('modTemplateVar',array('name'=>'tvname1'))[/b];

  if ($resource instanceof modResource) {
    $output[] = $modx->getChunk($tpl,$resource->toArray());
  }
}

return implode('',$output);

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

24,544 Posts

BobRay Reply #2, 10 years, 2 months ago

TVs are complicated. You're getting the TV object itself, but that just contains the default value (in the default_text field). It doesn't contain the value of the TV for any particular resource. That's in a different object: modTemplateVarResource.

$tvId = 12; /* Id of the TV */
$tvr = $modx->getObject('modTemplateVarResource', array('contentId' => $resource->get('id'), 'tmplvarid' => $tvId));
$tvValue = $tvr->get('value');

It's more complicated if any of the TVs are set to their default value, since those TVs will not have a modTemplateVarResource record. So ...

$tvr = $modx->getObject('modTemplateVarResource', array('contentId' => $resource->get('id'), 'tmplvarid' => $tvId));
if ($tvr) {
   $tvValue = $tvr->get('value');
} else {
   $tv = $modx->getObject('modTemplateVar');
   $tvValue = $tv->get('default_text');
}

You can get the TV objects attached to a given resource with $resource->getMany('TemplateVars'), and you can get the modTemplateVarResource objects, with $resource->getMany('TemplateVarResources'), but if you know the IDs of the TVs you want, it's almost always easier to use the the method above.

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18 Posts

rcarnrick Reply #3, 10 years, 2 months ago

Thank you for the quick response I have read your website and have done it on different snippets that I input the doc id directly.

I should have searched this a little different, the answer is in this forum thread: https://forums.modx.com/thread/?thread=70087&page=1

if (empty($input)) { return 'This article is so unique, that we couldn\'t find anything related to it!'; }
$tpl = $modx->getOption('tpl',$scriptProperties,'relatedPagesTpl');
if ($modx->getChunk($tpl) == '') { return 'We found some related pages, but don\'t know how to present it.'; }

$ids = explode(',', $input);

$output = array();

foreach ($ids as $key => $value) {
  $resource = $modx->getObject('modResource',array(
    'published' => 1,
    'id' => $value));

  if ($resource instanceof modResource) {
    $ta = $resource->toArray();
    $ta = array_merge($ta,$resource->getTemplateVars());
    $output[] = $modx->getChunk($tpl,$ta);

  }
}

return implode('',$output);

[ed. note: rcarnrick last edited this post 10 years, 2 months ago.]

24,544 Posts

BobRay Reply #4, 10 years, 2 months ago

That's a good solution.

I forgot about getTemplateVars(). I think it's relatively new.

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Answered Help expanding upon the Related Pages TV tutorial