[SOLVED] Conditional snippet for MIGX

165 Posts

sketchi Reply #1, 9 years, 7 months ago

Hi,

I've created two snippets to show different content depending on how many images are in a MIGX table on a page. It works fine if there are one or more images, but if there are zero images it displays the same content as if there was one.

Snippet #1 (for 1 image):

<?php
$items = $modx->fromJSON($input);
if(count($items) == 1){
$output = 'Output this if there is 1 image';
};
return $output;

Snippet #2 (for 2 or more images):

<?php
$items = $modx->fromJSON($input);
if(count($items) > 1){
   $output = 'Output this if there is 2 or more images';
};
return $output;

So, snippet #2 works as expected, the content is only shown of there are two or more images.

The content in snippet #1 on the other hand is shown even if there are 0 images, and I only want to to show if there is exactly one image.

Any ideas of what I'm doing wrong? [ed. note: sketchi last edited this post 9 years, 7 months ago.]

1,145 Posts

donshakespeare Reply #2, 9 years, 7 months ago

Philosophical question for you:
Is the glass really empty?

http://php.net/manual/en/function.array-filter.php

<?php
$items = array(""); // will count as 1, therefore true
if (count($items) === 1) {
    echo "true";
}

$items = array("one"); // will count as 1, therefore true
if (count($items) === 1) {
    echo "true";
}
?>

Solution, uproot all weeds, with array_filter

<?php
$output = "";
$items = $modx->fromJSON($input);
if(count(array_filter($items)) === 1){
   $output = 'Output this if there is 1 image';
};
return $output;
</php>

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165 Posts

sketchi Reply #3, 9 years, 7 months ago

donshakespeare, I don't understand a thing, but that's not what matters. What matter is that it works, and it does!

Thank you so much, you're a poet AND a life saver wink

1,145 Posts

donshakespeare Reply #4, 9 years, 7 months ago

Glad you were able to move on from that error.
Cheers

TinymceWrapper: Complete back/frontend content solution.
Harden your MODX site by passwording your three main folders: core, manager, connectors and renaming your assets (thank me later!)
5 ways to sniff / hack your own sites; even with renamed/hidden folders, burst them all up, to see how secure you are not.