[Solved] Need help parsing an XML

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894 Posts

benmarte Reply #1, 15 years, 1 month ago

So we have an xml file that contains a list of vehicles, these range from motorcycles to water crafts and their condition ie: new or used.

We already have the XML file parsed and displaying all the entries correctly now we are trying to use a tpl for our snippet to style our listings.

The chunk loops the right amount of times but no values are returned.

Any help would be appreciated.

Thanks.

This is a sample of our array:


Array(
  [Motorcycles] => Array(
    [used] => Array(
      [1] => Array(
        [listing-id] => 2228063
        [category] => Motorcycles
      )
    )
  )
)

This is our snippet code:

<?php
//Snippet:
$i=0;
foreach($xml->listings->listing as $listing) {
  $i++;    
  $c = (string)$listing->category;
  $n = (string)$listing->condition;
  $array[$c][$n][$i]['listing-id'] 			= (string)$listing->{'listing-id'};
  $array[$c][$n][$i]['category'] 			= (string)$listing->category;
}

$list = $modx->getChunk('listing', $array);
$modx->setPlaceholder('listing', $list);

?>

This is our chunk:



<ul>
  <li>[[+Motorcycles][+used][+1][+listing-id]]</li>
</ul>

And this is our placeholder :

 [[+listing]]

[ed. note: benmarte last edited this post 15 years, 1 month ago.]

Benjamin Marte
Interactive Media Developer
Follow Me on Twitter | Visit my site | Learn MODX

88 Posts

lazylegs Reply #2, 15 years, 1 month ago

First off, you are calling the chunk too late in my opinion.

If you check some complex ready made extra like getResources, basicly they work like this (from one of my snippets)

$products = $modx->getCollection('vcProduct', $query);
foreach($products as $product) {
    $vars = $product->toArray();
    $out[] = $modx->getChunk($rowTpl, $vars); 
}
return implode("\n", $out);

Each rown gets called separately, and then I return the output to template with that. Got ul in the template and that chunk is list items pretty much.

instead of returning it, you can set it as placeholder to template with

$modx->toPlaceHolder('placeHolderName' , implode("\n", $out);

in my case

After this, you call the snippet first in the template with [[!yourSnippet]] (you can call it also cached without using the ! in the call). Then you can put your placeholder [[+placeHolderName]] there.
code example

[[!YourSnippet]]
[[+placeHolderName]]

I am not sure how multidimensional arrays work for place holders, if I recall right you might need to call $modx->toPlaceHolders() http://rtfm.modx.com/display/revolution20/modX.toPlaceholders.

Sorry, bit lagged from odd day behind. My php seems to run on bit slow
[ed. note: lazylegs last edited this post 15 years, 1 month ago.]

Almost retired from web-development industry but still randomly writing at Lazylegs.info and on schedule hopefully in near future to finish Oracle and PostgreSQL ports of MODX

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3,112 Posts

goldsky Reply #3, 15 years, 1 month ago

First thing first, getChunk only works for 1 level deep array.
By looking your array

Array(
  [Motorcycles] => Array(
    [used] => Array(
      [1] => Array(
        [listing-id] => 2228063
        [category] => Motorcycles
      )
    )
  )
)

That means you should have some getChunk()-s in loops (where the depth depends on your need) and 1 in a wrapper.
1. To loop the listing-id (why do you need 'category' again if the parent key IS the category?)
2. To loop the condition
3. To loop the category
4. The last one, is the wrapper template to handle all 3 results above, and it's up to you to return it directly or store it inside the placeholder.

Without chunk

<?php

$output = '<ul>';
foreach ($categories as $cat => $conditions) {
    $output .= '<li>' . $cat . ' ';
    foreach ($conditions as $cond => $array) {
        $output .= $cond . ' ';
        foreach ($array as $arKey => $arVal) {
            $output .= $arKey['listing-id'];
        }
    }
    $output .= '</li>';
}
$output .= '</ul>';
return $modx->setPlaceholder('listing', $output);

With chunk (based on your sample output):

$wrapperPhs = array();
foreach ($categories as $cat => $conditions) {
    $rowPhs[$cat] = $cat;
    foreach ($conditions as $cond => $array) {
        $rowPhs[$cond] = $cond;
        foreach ($array as $arKey => $arVal) {
            $rowPhs['listing-id'] = $arKey['listing-id'];
            $wrapperPhs['wrapper'] .= $modx->getChunk('listingAllRowsTpl', $rowPhs) . "\n";
        }
    }
}
$output = $modx->getChunk('wrapperTpl', $wrapperPhs);

// direct return
return $output;

// or store inside a placeholder
return $modx->setPlaceholder('listing', $output);

<!-- wrapperTpl chunk -->
<ul>
    [[+wrapper]]
</ul>

<!-- listingAllRowsTpl chunk -->
    <li>[[+Motorcycles]] - [[+used]] - [[+1]] - [[+listing-id]]</li>

Untested, but that's the idea. [ed. note: goldsky last edited this post 15 years, 1 month ago.]

Rico
Genius is one percent inspiration and ninety-nine percent perspiration. Thomas A. Edison
MODx is great, but knowing how to use it well makes it perfect!

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benmarte Reply #4, 15 years, 1 month ago

@goldsky thanks for clarifying getChunk does not work for more than 1 level deep.

We are using the first method you posted and it's working.

Thanks guys for helping me out with this

Benjamin Marte
Interactive Media Developer
Follow Me on Twitter | Visit my site | Learn MODX

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3,112 Posts

goldsky Reply #5, 15 years, 1 month ago

yw, ben

Rico
Genius is one percent inspiration and ninety-nine percent perspiration. Thomas A. Edison
MODx is great, but knowing how to use it well makes it perfect!

www.virtudraft.com

Security, security, security! | Indonesian MODx Forum | MODx Revo's cheatsheets | MODx Evo's cheatsheets

Author of Easy 2 Gallery 1.4.x, PHPTidy, spieFeed, FileDownload R, Upload To Users CMP, Inherit Template TV, LexRating, ExerPlan, Lingua, virtuNewsletter, Grid Class Key, SmartTag, prevNext

Maintainter/contributor of Babel

Because it's hard to follow all topics on the forum, PING ME ON TWITTER @_goldsky if you need my help.