Newbie Question: Working with TVs in snippets

10 Posts

philhippos Reply #1, 15 years, 2 months ago

Hello,
i am new to Modx Revolution and i try to archieve a very simple task:

I do have a template-variable [[*newstext]] with inputtype: rich text field and outputtype: text.
Some pages on my site may have news, others may not have.

So i want a snippet to check wether this template-variable is empty or not and if if is not empty i want to output a message.

Here is what i tried in my snippet:

1. Submit the template-variable to a php variable

$newstext = '[[*newstext]]';

2. Check if the variable is empty and if it is NOT empty echo it.

if ($newstext){
  echo"<div id='news3'>[[*newstext]]</div>
}

My problem is that even when [[*newstext]] is empty (no text in the rich text field)

<div id='news3'></div>

shows up in the source-code of the page.

The variable$newstext contains no visible content - i tried that with echo $newstext; and it didn't show anything

I also tried:

 if ($newstext != "")

but still the div's were shown.

Here is the complete code:

<?php
$newstext = '[[*newstext]]';
if ($newstext != ''){
  echo"<div id='news3'>[[*newstext]]</div>";
}
?>

I'd be so glad if you could help me with that. I spent about 2 hours now on Google and the forums but couldn'd find what is wrong with my constuction.

Thanks in advance,
Phil [ed. note: philhippos last edited this post 15 years, 2 months ago.]

5,888 Posts

Bruno17 Reply #2, 15 years, 2 months ago

you can use an output-filter like that:

[[*newstext:notempty=`<div id="news3">[[*newstext]]</div>`]]

or:

[[*newstext:isnot=``:then`<div id="news3">[[*newstext]]</div>`:else=`TV newstext is empty`]]

or the If-snippet like that:

[[!If?
   &subject=`[[*newstext]]`
   &operator=`notempty`
   &then=`<div id="news3">[[*newstext]]</div>`
]]

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

you can buy me a beer, if you like MIGX

http://webcmsolutions.de/migx.html

Thanks!

2 Posts

philhippos_again Reply #3, 15 years, 2 months ago

Hello Bruno,

thanks you for your help. That was just what i needed!

Just for curiosity, and because i might run over a similar problem again: Would there have been a way to solve this by using a snipped as i tried?

Thank you!

P.S.
I needed to open up another account, since when i try to login with philhippos i keep getting the message: "discuss.account_deactivated". No idea why my account has been deactivated. Was there something wrong with my question?

5,888 Posts

Bruno17 Reply #4, 15 years, 2 months ago

you cannot use tags like [[*.......]] in a snippet, but you can send the parsed value to your snippet this way:

[[!mysnippet? &value=`[[*newstext]]`]]

and use it in your snippet like that:

<?php
if (!empty($value)){
  return '<div id="news3">'.$value.'</div>';
}

or

<?php

$value=$modx->getOption('value',$scriptProperties,false);

if ($value)){
  return '<div id="news3">'.$value.'</div>';
}

the modx-api has also several methods to get a value of TVs in custom-snippets.

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

you can buy me a beer, if you like MIGX

http://webcmsolutions.de/migx.html

Thanks!