Process chunk from snippet - Evo 1.02

151 Posts

jaredloman Reply #1, 16 years, 5 months ago

Hello there,

I have went through the documentation pretty extensively on calling a chunk from within a snippet. I wrote a simple snippet to display a chunk based upon the current day/time. It seems to work fine if I just echo out a string so I assume the rest of my code is at least functional. Could someone perhaps give me a little insight on how to get it to process a chunk? Also, I’m very much a PHP novice...about 4 chapters into my PHP book wink

so if you happen to have any tips on how I can make this code more efficient, I’d really appreciate any insight in that department. Thanks in advance for any assistance! Alas...my snippet:

//EDIT: One other kicker, I forgot to mention.... each chunk that I’m calling contains a snippet call. If there is a better way to do this...let me know

<?php
// Define Variables
$dfDay = date('N');
$dfTime = date('G');

// Main Functions

function dfWeekDay($dfTime) {
	global $modx;
	if ($dfTime >= 1 && $dfTime <= 15) {
		$dfChunk = $modx->parseChunk('lnFeature', $chunkArr, '{{', '}}');
	} else if ($dfTime > 15 && $dfTime <= 24) {
		$dfChunk = $modx->parseChunk('dnFeature', $chunkArr, '{{', '}}');
	} else {
		echo "You have serious time issues!";
	}
	return $dfChunk;
}

function dfWeekEnd($dfTime) {
	global $modx;
	if ($dfTime >= 1 && $dfTime <= 11) {
		$dfChunk = $modx->parseChunk('bfFeature', $chunkArr, '{{', '}}');
	} else if ($dfTime > 11 && $dfTime <= 15) {
		$dfChunk = $modx->parseChunk('lnFeature', $chunkArr, '{{', '}}');
	} else if ($dfTime > 15 && $dfTime <= 24) {
		$dfChunk = $modx->parseChunk('dnFeature', $chunkArr, '{{', '}}');
	} else {
		echo "You have serious time issues!";
	}
	return $dfChunk;
}

// Determine Day of week and call appropriate function

if ($dfDay < 6) {
	$result = dfWeekDay($dfTime);
} else if ($dfDay > 5) {
	$result = dfWeekEnd($dfTime);
} else {
	echo "You have serious day issues!";
}
return $result;
?>

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24,524 Posts

sottwell Reply #2, 16 years, 5 months ago

No, a snippet loaded via getChunk or parseChunk is not processed through the parser, so snippets, TVs and other MODx tags won’t be evaluated.

parseChunk lets you use placeholders set by the calling snippet; it merges the placeholders in the chunk with their values. So you would need to have the snippet code that’s in the chunk snippet now in your calling snippet, and set placeholders.

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151 Posts

jaredloman Reply #3, 16 years, 5 months ago

Although I have no intention of contradicting your knowledge, the snippet that you wrote using getchunk seems to work just fine with a snippet nested in the chunk.

In case anyone else is interested in something similar do you mind if I post it here?

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24,524 Posts

sottwell Reply #4, 16 years, 5 months ago

That’s not because the snippet was processed by the getChunk function, it’s because the document went through the main parser again after the chunk content containing snippet tags was inserted. There may be circumstances where it’s reached the max number of passes through the parser, although it probably usually will go through again. Just don’t be too surprised someday if such a getChunk function call doesn’t produce the expected results.

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Join the Slack Community - http://modx.org

91 Posts

theuros Reply #5, 16 years, 5 months ago

i’m new in modx and i have some wuestions about snipets and parsing chunks .. I wanted to do somethig but without success so i need a litle help ..

I want to call a snippet in a template, and that snippet will display a chunk in a loopt ... so i want that the snippet do a loop of chunks, and fill it each loop with different data .. i want to create some kind of list ...

in this example i wanted to send count $i data to the chunk

i tryed in this way but didn’t worked:

TEMPLATE:
[[test_snippet]]

SNIPPET test_snippet
for ($i = 1; $i <= 5; $i++) {
$modx->setPlaceholder(’xxx’,$i);
echo ’{{test}}’;
}

CHUNK {{test}}
<div> [+xxx+] </div>

RESULT: i get chunk displayed 5 times with value 5 .. i didnt get each loop right no. but i got the last one ..

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

Then i tryed:

SNIPPET test_snippet
for ($i = 1; $i <= 5; $i++) {
$x = ’{{test}}’;
$x = str_replace(’[+xxx+]’,$i,$x);
echo $x;
}

no success ...so i tryed

SNIPPET test_snippet
for ($i = 1; $i <= 5; $i++) {
$chunkArr = array(’xxx’=>’aaa’);
$test = $modx->parseChunk(’test’, $chunkArr, ’[+’, ’+]’);
echo $test;
}

..still no success ..

How i can do this ? .. a snippet wich gather data and for displaying it use a chunk ?

24,544 Posts

BobRay Reply #6, 16 years, 5 months ago

Build the output in your snippet:

<?php
$output = '';
for ($i = 1; $i <= 5; $i++) {
     $temp= $modx->getChunk('test');
     $temp = $str_replace('[+xxx+]',$i,$temp);
     $output .= $temp;
}
return $output;

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