Reference Multiple Resources in Manager

25 Posts

seliin Reply #1, 9 years, 5 months ago

Hi

I'd like to have a TV (Multi-Checkbox) where I can reference on listed Resources.

I'm working with several Contexts and the same Templates should be used on all Contexts.
That means, in the Context-Settings I'd like to Reference the "Main Page", of which Sub-Pages should be listed to choose from.

As Input Options of my TV "downloads_references":

@EVAL return $modx->runSnippet('listResourcesContext',array('setting_key' => 'site_references'));

Snippet "listResourcesContext"

<?php
$contextKey = $modx->getOption('setting_key', $scriptProperties, 'default');

$document = $modx->getObject('modResource',$modx->resource->get("id"));
$key = $document->get('context_key');
$ctx = $modx->getContext($key);

$parent = $modx->getOption('parent',$scriptProperties,$ctx->getOption($contextKey));
$parentObj = $modx->getObject('modResource',$parent);
if (!($parentObj instanceof modResource)) { return ''; }
$resArray = $parentObj->getMany('Children');
$resources = array();
foreach($resArray as $res) {
  if ($res instanceof modResource) {
    $resources[] = $res->get('pagetitle') . '==' . $res->get('id');
  }
}
$out = implode("||",$resources);
return $out;

When the Resource was already saved, it is possible to choose from the resource list.

But if I want to Create a New Resource, I get a 500 error....
Can anybody help me? Maybe there's something wrong with the Snippet?

Thank you very much in advance
seliin

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

[ed. note: seliin last edited this post 9 years, 5 months ago.]

25 Posts

seliin Reply #2, 9 years, 5 months ago

I need some help please...

discuss.answer

1,145 Posts

donshakespeare Reply #3, 9 years, 5 months ago

Check first if the resource in question, that is, currently worked on, is indeed a resource.
New resources are not resources, they are wanna-bes. They become resources only after the first save.

Your errors start when you try to "get" non-existent fields values from a wanna-be "resource" that does not have an id or anything at all.

<?php
if(is_object($modx->resource)){ //<--check first if this is a resource before we start getting and giving anything
  $document = $modx->getObject('modResource',$modx->resource->get("id"));

  $contextKey = $modx->getOption('setting_key', $scriptProperties, 'default');
   
  $key = $document->get('context_key');
  $ctx = $modx->getContext($key);
   
  $parent = $modx->getOption('parent',$scriptProperties,$ctx->getOption($contextKey));
  $parentObj = $modx->getObject('modResource',$parent);
  if (!($parentObj instanceof modResource)) { return ''; }
  $resArray = $parentObj->getMany('Children');
  $resources = array();
  foreach($resArray as $res) {
    if ($res instanceof modResource) {
      $resources[] = $res->get('pagetitle') . '==' . $res->get('id');
    }
  }
  $out = implode("||",$resources);
  return $out;
}

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25 Posts

seliin Reply #4, 9 years, 5 months ago

Thank you so much!!

Answered Reference Multiple Resources in Manager