Loop through TVs

47 Posts

jonasgrau Reply #1, 18 years, 1 month ago

Hello

I have the following TVs:
gallery_1_img, gallery_1_txt, gallery_2_img, gallery_2_txt, etc... (1 through 10)

I need to do a loop through all those TVs and check if they have been filled out. If a TV has been filled out I need to output the value. I’m thinking i need to create a snippet, but that’s about as much as I can figure out myself. Can anyone point me in the right direction.

Any help is greatly appreciated
Jonas

1,336 Posts

shamblett Reply #2, 18 years, 1 month ago

You could have a look at the getTemplateVars API function, I’ve never used it but it seems to return the contents of template variables associated with the template the current document is using, or if specified another one. The problem you might have is ’to check if they have been filled out’. Not sure how you’d do this safely, there is no ’content is valid’ flag or some such to test here.

There’s also getTemplateVar and getTemplateVarOutput as well.

Use MODx, or the cat gets it!

5,888 Posts

Bruno17 Reply #3, 18 years, 1 month ago

you can get this:
http://modxcms.com/Docmanager-881.html

and try it with something like that: (not tested)

<?php
$path='./assets/snippets/path_of_documentclass/';
require_once($path.'document.class.inc.php');
$docid=$modx->getDocumentIdentifier;
$doc = new Document($docid);

for ($i = 1; $i <= 10; $i++) {

$tv='tvgallery_'.$i.'_img';
$imgtv=$doc->Get($tv);

$tv='tvgallery_'.$i.'_txt';
$txttv=$doc->Get($tv);

$output.=$i.':'.$imgtv.':'.$txttv.'<br/>';

}

return $output;
?>

-------------------------------

you can buy me a beer, if you like MIGX

http://webcmsolutions.de/migx.html

Thanks!

47 Posts

jonasgrau Reply #4, 18 years, 1 month ago

Hi Guys

Thanks for your replies. With your help I made the following snippet which does the job:

<?php
$idnames = '';
$output = '';
for ($i=1; $i <= 10; $i++) { 
	// Create array of needed TVs
	$idnames[] = 'gallery_'.$i.'_img';
	$idnames[] = 'gallery_'.$i.'_txt';
}
$values = $modx->getTemplateVarOutput($idnames); // Getting the values of the TVs

$first = 1;
for ($i=0; $i <= 9; $i++) { // Looping through the newly created array of values
	if (file_exists($values['gallery_'.$i.'_img'])) {
		// Only outputting if file_exists
		$output .= '<a '.($first ? '' : 'style="display:none;"').' href="'.$values['gallery_'.$i.'_img'].'" rel="lightbox[gallery]" title="'.$values['gallery_'.$i.'_txt'].'">View Gallery</a>';
		$first = 0;
	}
}

return $output;
?>

I tried using setPlaceholder and getChunk to make the output work from chunks, but I had problems working with those within a loop...