Latte version 2.6.0 released
- David Grudl
- Nette Core | 8218
Latte v2.6.0 has just been released!
- added custom functions via
$latte->addFunction() - Added optional chaining
$var?->prop?->elem[1]?->call()?->item - Short ternary operator now requires braces around array (for future optional chaining) (BC break)
- PhpWriter: short ternary checks if value exists
- CachingIterator: fixed IteratorAggregate → Iterator conversion
- BlockMacros: check when dynamic snippet is combined with id attribute [Closes nette/application#242]
- BlockMacros: added $snippetAttribute for custom HTML attribute with snippet id [Closes nette/application#242]
- removed latte.php
For the details you can have a look at the GitHub.
Optional chaining
{if $blogPost?->count('*')} // means if (isset($blogPost) && $blogPost->count('*'))
...
{/if}
{$order->item?->name} // means isset($order->item) ? $order->item->name : null
Custom functions
$latte->addFunction('sum', function(...$nums) {
return array_sum($nums);
});
{if sum($a, $b) > 10}
...
{/if}
{sum(1, 5, 9)}
Another example:
$latte->addFunction('isLinkCurrent', [$presenter, 'isLinkCurrent']);
<a n:class="isLinkCurrent() ? active" n:href="Product:show">...</a>
instead of
<a n:class="$presenter->isLinkCurrent() ? active" n:href="Product:show">...</a>
This custom function will be automatically available in the next release of nette/application.
- SamuelThorn
- Member | 29
Hi there. I have come across this error message yesterday and I was a little bit confused by it. It said:
Short ternary operator now requires braces around array (for future optional chaining) (BC break)
The code that caused the error was:
<span n:attr="$variable ? ['key1' => 'val1', 'key2' => 'val2']">{$text}</span>It took me a while to figure out that braces “{}” suggested in the message were in fact parentheses “()”.
<span n:attr="$variable ? (['key1' => 'val1', 'key2' => 'val2'])">{$text}</span>I am not sure, if this was an error in the message or my fault, but either way I have decided to post it here, so it might help somebody dealing with the same problem.