can anybody help convert to twig this piece of code.
foreach ($methods as $method){?>
<li><?php echo ${'tab_express' . $method}; ?></li>
<?php } ?>
I have tried this:
{% for method in methods %} <li>{{ 'tab_express' ~ method }}</li>
{% endfor %}
But this part: {{ 'tab_express' ~ method }} does not work. What wrong?
*EDIT:
need retrieve names of the tabs from the controller
foreach ($data['methods'] as $method){
$data['tab_express' . $method] = $this->language->get('tab_express' . $method);
}
*
I answered below
solution for my question i found.
in controller should be:
foreach ($data['methods'] as $method){
$data['tab_express'][$method] = $this->language->get('tab_express' . $method);
Twig:
{% for method in methods %}
<li>{{ tab_express[method] }} </li>
{% endfor %}
In controller it should be:
{{ attribute(_context, 'tab_express' ~ method) }}
Related
One question please.
{{ dump(app.user.slugName) }}
If I do the above snippet in Twig, I get the slugName of the user loged ("my-user-2", i.e.) in the app (SlugName is an atribute of the entity user). Ok & Correct. But... I want to order this action from a var (var from BD data)
I have a variable named option which is set like this:
{% set option = 'app.user.slugName' %}
But when I'm trying output this variable with {{ dump(option)}} it returns app.user.slugName as literal. It does not return my-user-2.
Is there are any way in twig to solve this? It's a function to generate a menu, but some links needs some parameters.
I see what you mean, but Twig can't evaluate expression like that.
To achieve something like that you would need a snippet like this,
{% set value_methods = 'app.user.slugname' %}
{% set option_value = _context %}
{% for method in (value_methods|split('.')) if method != '' %}
{% set option_value = attribute(option_value, (method|replace({'()': '', }))) %}
{% endfor %}
{{ option_value }}
twigfiddle
(edit)
Remember you can create a macro to achieve some reusability for this snippet,
{% import _self as macros %}
{{ macros.evaluate(_context, 'app.user.slugname') }}
{% macro evaluate(context, value_methods) %}
{% set option_value = context %}
{% for method in (value_methods|split('.')) if method != '' %}
{% set option_value = attribute(option_value, (method|replace({'()': '', }))) %}
{% endfor %}
{{ option_value }}
{% endmacro %}
im trying to output an attribute of a product on my product page (opencart v3).
The attribute is called 'technicaldetails' and it works just fine using this code:
{% if attribute_groups %}
{% for attribute_group in attribute_groups %}
{% if attribute_group.name == 'technicaldetails' %}
{% for attribute in attribute_group.attribute %}
{{ attribute.text }}
{% endfor %}
{% endif %}
{% endfor %}
{% endif %}
but the technical details field have unstyled list stored in it.. and this outputs the complete html instead of rendering the list.
ive tried using {{ attribute.text|e }} and {{ attribute.text|raw }} and many other alternatives i could find.. but each time is just throws out the html and not render it..
in php this used to work.
<?php echo html_entity_decode($attribute['text']); ?>
so how can i decode the html now as i cant use php in twig and there is no html_entity_decode in twig either :(
looking forward for somehelp :)
much appreciated
thanks.
Just register the html_entity_decode function in twig.
The most simple way is to look where twig is loaded and add the following code,
$twig->addFilter(new \Twig_Simple_Filter, 'html_entity_decode', 'html_entity_decode');
After that you can just do the following in your twig templates
{{ attribute.text|html_entity_decode }}
UPDATE: For Opencart 3.0.3.7 version filter should be like this:
$twig->addFilter(new \Twig\TwigFilter('html_entity_decode','html_entity_decode'));
Find file
document_root/system/library/template/twig.php
Just after
$this->twig = new \Twig_Environment($loader, $config);
add following code
$twig->addFilter(new \Twig_SimpleFilter('html_entity_decode', 'html_entity_decode'));
After doing this, you must went to admin to reload all modifications in menu Extensions -> modifications.
After that you can do the following in all twig files *.twig
{{ attribute.text|html_entity_decode }}
This code gives error in twig.
{{ url( '/?page=signin'
{% if sidebar %} ~ '&sidebar=' ~ {{ sidebar }}{% endif %}
{% if post %} ~ '&post=' ~ {{ post }}{% endif %}
{% if next or page %} ~ '&next=' ~ {{ next ?: page }} {% endif %} ) }}
What would be the better way to do this type of concatenation?
This would work, but it require that each var (sidebar, post…) to be defined. It should contain value, or be false (or null). Ampersands are escaped automatically. If you'll use &sidebar it will be double-escaped (&).
{{ '/?page=signin' ~ (sidebar ? '&sidebar=' ~ sidebar) ~ (post ? '&post=' ~ post) }}
Does somebody know an other way to do that with twig, because it returns me an error :/
{% for key, conversation in conversations %}
{% set lastMessage = sortedConversations.key %}
<p>{{ lastMessage }}</p>
{% endfor %}
Here is the error returned :
Key "key" for array with keys "0" does not exist
Thanks !
I'm not sure to understand, but may be you can try this:
sortedConversations[key]
instead of
sortedConversations.key
Try this:
{% for key, conversation in conversations %}
{% set lastMessage = sortedConversations[key] %}
<p>{{ lastMessage }}</p>
{% endfor %}
Note the brackets around key.
This way, twig should notice key as a variable and not as a simple string.
Is it possible to check if given variable is string in Twig ?
Expected solution:
messages.en.yml:
hello:
stranger: Hello stranger !
known: Hello %name% !
Twig template:
{% set title='hello.stranger' %}
{% set title=['hello.known',{'%name%' : 'hsz'}] %}
{% if title is string %}
{{ title|trans }}
{% else %}
{{ title[0]|trans(title[1]) }}
{% endif %}
Is it possible to do it this way ? Or maybe you have better solution ?
Can be done with the test iterable, added in twig1.7, as Wouter J stated in the comment :
{# evaluates to true if the users variable is iterable #}
{% if users is iterable %}
{% for user in users %}
Hello {{ user }}!
{% endfor %}
{% else %}
{# users is probably a string #}
Hello {{ users }}!
{% endif %}
Reference : iterable
Ok, I did it with:
{% if title[0] is not defined %}
{{ title|trans }}
{% else %}
{{ title[0]|trans(title[1]) }}
{% endif %}
Ugly, but works.
I found iterable to not be good enough since other objects can also be iterable, and are clearly different than an array.
Therefore adding a new Twig_SimpleTest to check if an item is_array is much more explicit. You can add this to your app configuration / after twig is bootstrapped.
$isArray= new Twig_SimpleTest('array', function ($value) {
return is_array($value);
});
$twig->addTest($isArray);
Usage becomes very clean:
{% if value is array %}
<!-- handle array -->
{% else %}
<!-- handle non-array -->
{% endif % }
There is no way to check it correctly using code from the box.
It's better to create custom TwigExtension and add custom check (or use code from OptionResolver).
So, as the result, for Twig 3, it will be smth like this
class CoreExtension extends AbstractExtension
{
public function getTests(): array
{
return [
new TwigTest('instanceof', [$this, 'instanceof']),
];
}
public function instanceof($value, string $type): bool
{
return ('null' === $type && null === $value)
|| (\function_exists($func = 'is_'.$type) && $func($value))
|| $value instanceof $type;
}
}
Assuming you know for a fact that a value is always either a string or an array:
{% if value is iterable and value is not string %}
...
{% else %}
...
{% endif %}
This worked good enough for me in a project I was working on. I realize you may need another solution.