Understanding getTVValue

39 Posts

northernape Reply #1, 8 years, 1 month ago

I have a template variable, checkbox input type with multiple input option values, e.g. option1||option2||option3...

Using the following snippet, i'm trying to return a list checked options.

$tv = $modx->resource->getTVValue($tvname);
$options = explode('||', $tv);
  
foreach ($options as $option){
    $params['name'] = $option;
    $output = $modx->getChunk($tpl,$params);
}
  
return $output;

However, this only results in a string with the options combined, e.g. option1option2option3.
I'm eager to learn why this is happening?

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

24,544 Posts

BobRay Reply #2, 8 years, 1 month ago

It helps to see what you're getting before writing the code to display it:

$tv = $modx->resource->getTVValue($tvname);
return $tv;

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39 Posts

northernape Reply #3, 8 years, 1 month ago

Oh. I've now tried that and probably as you expected it returns a string with the options combined.

I would be most grateful if you can explain why this happens? When the value within the database table is different, e.g. option1||option2||option3...

discuss.answer

39 Posts

northernape Reply #4, 8 years, 1 month ago

I changed the TV output type to || delimiter and now working as intended. Although only after updating the snippet to:

$tv = $modx->resource->getTVValue($tvname);//get tv value of current resource by name
$options = explode("||", $tv);

$output = '';

foreach ($options as $option){
    $params = ['name' => $option];
 
    $output .= $modx->getChunk($tpl,$params);
}
  
return $output;

When the TV output type is set to default, the value within the database table is delimited with || but when output it strips these. Apparently, this is a combination of legacy and different use cases requiring different behaviour. There's an issue about it on GitHub.

24,544 Posts

BobRay Reply #5, 8 years, 1 month ago

I'm glad you got it sorted.

Thanks for reporting back.

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Answered Understanding getTVValue