how to determine if child docs are weblinks? SOLVED

115 Posts

highlander Reply #1, 19 years, 4 months ago

greetings ...

is it possible to determine whether one or more of the children of any given document are weblinks instead of documents?

for example i have a structure like this:

- About Us
- External Link 1 (weblink)
- External Link 2 (weblink)
- The Team (document)

i want to have a snippet that will know that there are child weblinks (using getDocumentChildren?) and show them in a chunk template (using Ditto?) but if there are no weblinks then do nothing.

any ideas greatly appreciated!

115 Posts

highlander Reply #2, 19 years, 4 months ago

SOLVED

if anyone is interested, or if anyone has a better solution, i finally came up with the following solution which displays a formatted box for external links, if the current document has child weblinks:

for each child weblink created i added "weblink" as the description then called the following snippet in my template

$thisID = $modx->documentObject['id'];
$children = $modx->getDocumentChildren($thisID);

$NumWebLinks = 0;
$ChildIDs = '';

foreach ($children as $child) {
  if($child['description']=='weblink'){ 
    $NumWebLinks ++; 
    $ChildIDs .= $child['id'].',';
  }
}

if($NumWebLinks >0){
  $params['tpl'] = 'WebLinks';
  $params['documents'] = substr($ChildIDs, 0, strlen($ChildIDs)-1);
  $params['display'] = 'all';
 
  $prehtml = $modx->getChunk('ExternalLinksTop'); 
  $html = $modx->runSnippet('Ditto', $params);
  $posthtml = $modx->getChunk('ExternalLinksBottom'); 

  $output = $prehtml.$html.$posthtml;
  return $output;
}

74 Posts

joeindio Reply #3, 19 years, 4 months ago

Hi, just bumped into your question. Had exactly the same question the other day and came up with this snippet:

<?php
//Snippet WebLinksList
//Container Document, defaults to site root (work through full doc tree) if none given
$container = isset($container) ? $container : 0;
//Depth to search for children documents, defaults to 1 if none given
$depth = isset($depth) ? $depth : 1;
//Fetch Children documents
$res=$modx->getChildIds($container, $depth);
$linklist = '';
foreach ($res as $key=>$value){
	$doc=$modx->getDocument($key);
	if($doc['type']=='reference'){
		if ($linklist != '') $linklist .= ',';
		$linklist .= $doc['id'];
	}
}
return $result;
?>

It just outputs a comma-separated list of all the weblinks under the $container doc, up to the $depth depth. As you can see, no need to set the description of the links to ’weblink’ - there’s already a field (type=reference) for that on the modx_site_content table.

The actual output of the weblinks on your pages can be done in many ways, i guess you can pick up from this.For instance using Ditto 2:

[tt][[Ditto?documents=`[!WebLinksList?container=`21`!]` &tpl=`ExternalLinks`]][/tt]

Styling the list on the ExternalLinks chunk.

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115 Posts

highlander Reply #4, 19 years, 4 months ago

a very nice solution ... thanks for sharing