com_content—get associated article in right language

Question

I have a template, where would like to print the content of an article, what is working quite nice so far, using this code:

JModelLegacy::addIncludePath(JPATH_SITE . '/components/com_content/models');
$model = JModelLegacy::getInstance('Article', 'ContentModel');
$article = $model->getItem($aid);
$terms = empty($article->fulltext) ? $article->introtext : $article->fulltext;

So basically, I have the article's id and load it, BUT that throws an error if the current language differs from the language of the article. Unfortunately, I cannot »translate« the article ID, so I need to find a way, to get the right article based on the current language.

Fortunately, there are the associations I can use for that Job (image below).

So now my Question:

How can I load the associated Article?

n.b.: I already had a look at the database, and I found the associations table, but I just hope that there is already some code I could use!

Thanks in Ahead!

Answer 1

You can use JLanguageAssociations::getAssociations. This function will return an array containing associated items. You can also check if if the language filter Items Associations parameter is enabled using JLanguageAssociations::isEnabled();.

Here's an example from ROOT/administrator/components/com_content/models/article.php:

// Load associated content items
$app = JFactory::getApplication();
$assoc = JLanguageAssociations::isEnabled();

if ($assoc)
{
    $item->associations = array();

    if ($item->id != null)
    {
        $associations = JLanguageAssociations::getAssociations('com_content', '#__content', 'com_content.item', $item->id);

        foreach ($associations as $tag => $association)
        {
            $item->associations[$tag] = $association->id;
        }
    }
}

return $item;

Resources:

• https://api.joomla.org/cms-3/classes/JLanguageAssociations.html
• http://asikart.com/docs/japi31/Joomla-Libraries/Language/JLanguageAssociations.html

Answer 2

components/com_content/helpers/association.php

has a class ContentHelperAssociation and function getAssociations($id = 0, $view = null) you could probably use.