For some reason the Joomla docs are not very friendly to people that don't already know how things are done beforehand.
What I want is, I have two categories in each section, and I want to list all articles in the first one. I tried anything like this:
<p><?php echo count($this->categories); ?></p>
<?php if (count($this->categories) > 0) :
$category = $this->categories[0];
$this->items =& $category->getItems();
echo $this->loadTemplate('items');
endif;
?>
I took that out of the other, pre-defined templates, but this only seems to work within the category-context (for the lack of a better word here). Joomla Docs and Google turned up nothing, am I the only one wanting that?
That bit of code doesn't work because the Section model and view do not have a function for getting that information.
You would be better off overriding the Category listing than hacking up the Section model and view. Unless there is a compelling reason to do otherwise, change your menu type from Articles >> Section to Articles >> Category >> Blog Layout. The blog layout will display link, title, and into content just by using the built in parameters.