I'm new to using Hugo and Go Templates. How can I access a variable from a partial file that is defined in base file using Hugo?
For eg: I have an index.html file which contains code that reads the data stored in the events.json file in the data directory and stores it in a variable. How can I access that variable from another file?
index.html
{{ $events := .Site.Data.events }}
{{ partial "people" . }}
people.html
// access the events variable from the index.html
{{ $events }}
I really hope this makes sense. I can try and clarify more if needed.
0.15 introduced a map that can be used for this.
index.html
{{ $events := .Site.Data.events }}
{{ partial "people" (dict "events" $events) }}
people.html
// access the events variable from the index.html
{{ .events }}
You could use the dict func:
{{ partial "people" (dict "page" . "events" $events) }}
You will then address them like {{ .page.someVar }} and {{ .events.someVar }} in the partial.
An alternative in your case could maybe, in the partial (as the previous poster said), address the .Site.Data.events directly from the partial.
According to Hugo documentation:
... partial calls receive two parameters.
The first is the name of the partial and determines the file location to be read.
The second is the variables to be passed down to the partial.
This means that the partial will only be able to access those variables. It is isolated and has no access to the outer scope.
This means, the events variable is outside of the scope of people.html. Your people.html cannot "see" it. One solution would be pass it down, like:
{{ partial "people" . $events }}
If it does not work, try different notation ($ vs. .).
If that does not work, you can always call your data file again, without variable, just like in the examples, that is, use {{ .Site.Data.events }} in your people.html partial.
Let me know in the comments how it goes, I'll try to improve my answer if necessary. I know it's a pain to get out of Hugo boundaries into Go territory :)
Related
I have a problem with flash messages in Symfony 4 and translation.
Translation of simple flash messages is working fine:
$this->addFlash('success', 'flashmessage.project_deleted');
But now I want to add some parameters to the flash messages and I have no idea how to handle it. I tried a lot, but nothing is working. I want to show in the flash messages the title of projects after f.e. removing. For example:
$this->addFlash('success', sprintf('flashmessage.project_deleted: %s', $project->getTitle()));
But the translation is not recognized, because the parameter is replaces before translation happens (I think so). And it should also be possible to have parameters in the middle of a string and not only at the end or at the beginning and ideally more than one parameter.
I'm using this in my Controller which extends AbstractController.
Does anybody has a solution for this?
Usually you would pass in the parameters to the translation, so your code snippet should probably look your first example and then in twig you would have something like this:
{% for message in app.flashes('success') %}
<div class="alert alert-success">
{{ message|trans({ 'title': project.title }) }}
</div>
{% endfor %}
The translation then should contain the parameter that is replaced:
flashmessage:
project_created: 'The project "%title%" was created successfully.'
project_deleted: 'You successfully deleted the project "%title%".'
...
Obviously the downside is that you have to dynamically pass in the variables which does not make much sense for flash messages, as not all of them will require these parameters. Also, as you already mentioned, when you deleted the project you will probably not have it available anymore in the template.
Instead I would recommend translating the message before passing it into the flash bag:
$this->addFlash(
'success',
$this->translator->translate(
'flashmessage.project_deleted',
[
'title' => $project->getTitle(),
]
)
);
This will require that you pass in the translator to your controller. You could either create your own base controller similar to Symfony's AbstractController for this and create something like a $this->trans()-method to make it easier to translate things inside your controller. Also, you will still have to make sure that $project->getTitle() will still return a value, so you probably want to call this before you actually delete the entry or have the data in memory.
When you do it this way, then you should not translate the flash messages in the template itself because they are already translated. This will still work because when Symfony tries to translate the already translated message, e.g. You successfully deleted the project "foo". then it will not find a translation and just print the original text instead, but you will get warnings in your logs about missing translations. The solution is to remove the |trans in your template (see first snippet).
A possible solution is to add another flash with serialized parameters.
Then, when you display your flash message, check if that extra flash exists and, if so, deserialize it and use it as argument.
Example follows.
In controller:
$this->addFlash('success', 'flashmessage.project_deleted');
$this->addFlash('_params', serialize(['%project%' => $project->getTitle()]));
In template:
{% flashMessage = app.session.flashbag.get('info') %}
{% if app.session.flashbag.has('_params') %}
{% set flashParams = app.session.flashbag.get('_params')|first|unserialize %}
{{ flashMessage|trans(flashParams) }}
{% else %}
{{ flashMessage|trans }}
{% endif %}
You need to create a Twig extension that defines an unserialize filter (or use a library that provides it)
Since Symfony 5.2 you can use the TranslatableMessage object to achieve this.
https://symfony.com/doc/current/translation.html#translatable-objects
use Symfony\Component\Translation\TranslatableMessage;
$this->addFlash(
'success',
new TranslatableMessage(
'flashmessage.project_deleted',
['%project%' => $project->getTitle()]
)
);
Then in your Twig template you only need to use {{ flashMessage|trans }}.
This works without injecting the Translator service, or messing about with anything in Twig.
Have a look at the ICU Message Format: https://symfony.com/doc/current/translation/message_format.html
I have the locale set to one language. Let's say german "de" and I want to have a part of the whole text translated into different languages (Ex. This happened 100 years ago -> This happened vor 100 Jahre). For this I am trying the following code:
//this returns 'site.dates.years'
{% set yearsText = yearsCount|displayTimeDivisions() %}
( {{ yearsCount }} {% trans with {'%content%': yearsText } from "messages" into "en" %}%content%{% endtrans %}
after using the trans method i get the string from yearsText ('site.dates.years') and not the translated content. Is this even possible to translate or I should drop it?
This works as expected, what you are trying to translate is %content%, not site.dates.years. Try this:
//this returns 'site.dates.years'
{% set yearsText = yearsCount|displayTimeDivisions() %}
( {{ yearsCount }} {% trans from "messages" into "en" %}{{ yearsText }}{% endtrans %}
Edit
The previous suggestion doesn't work as using trans in that way only works with simple text, not with variables.
This works for me:
{{ yearsText | trans({}, 'messages', 'en') }}
EDIT: clear cache
Sometimes Symfony has a too strong caching mechanism. If you work without locales first, and then modify controllers and twigs to be multi-locale and you also add a new messages file, Symfony loads all new controller/twigs but somehow misses that there are new message files. A simple cache clear, done ONLY ONCE (!) right after you add the message files, solves this problem. And thenceforth you don't need to clear the cache every time you change a translation.
Try this as a last resort. If this doesn't help I'd recommend to read carefully the documentation (link in the last line of this answer):
app/console cache:clear --env=dev
You may try one or all (!) of these, it's impossible to tell what is going wrong.
{{ yearsCount|trans }}
{{ 'site.dates.years'|trans }}
See if these translate. If the second does, you're setting the variable wrong, somehow.
If not, pass the _locale along in the route:
defaults: { _controller: Bundle:Controller:action, _locale: de }
Or have it as a route parameter:
path: /a/path/{_locale}/whatever
defaults: { _controller: Bundle:Controller:action }
requirements:
_locale: en|de
Print the locale to be sure it's properly set in the twig:
{{ app.request.locale }}
{{ app.request.getLocale() }}
If the locale prints out fine but the translation still does not work, it's because Symfony does not find the identifier. Go to the translations file and check that it's written correctly:
site:
dates:
years: Jahre
If you find it in messages.de.yml then maybe it's the wrong placement of the file. The loader searches for these files:
Symfony looks for message files (i.e. translations) in the following default locations:
the app/Resources/translations directory;
the app/Resources/MyAppBundle/translations directory;
the Resources/translations/ directory inside of any bundle.
If fiddling around with these files doesn't yield results, it's a configuration error in config.yml, or many overlapping errors (all of the above?) that work against you.
Here's the source of all pain/info about translations, but you've probably memorized every paragraph, by now: Symfony translations.
In my Drupal project I'm unable to access values of a field-collection. I can output all values by using:
{{ item.content }}
But I'm not able to get deeper nested values, which are objects.
For example I would like to get the value «field_interpret».
This things don't work:
{{ item.content['#field_collection_item'] }}
{{ item.content.#field_collection_item }}
{{ item.content.field_collection_item }}
Thank you for help.
After several days of searching and testing I ended up with a plain old and dirty sql-query which I included in the preprocess_field function.
My problem was, that I don't found a way to access the elements in a field-collection and I had to make some calculation based on the field values.
Normally I can use this kind of syntax for routing in twig.
{{ path('acme_top_root') }}
Now,I have a folder
/web/uploads/documents/
How can I get the pass for this folder?
It doesnt have the name defined in route.yml.
You can use asset
{{ asset('uploads/documents/...') }}
I use the Symfony2.1 and have the default config.yml
Documentation said:
{# but static strings are never escaped #}
{{ '<h3>foo</h3>'|trans }}
But if I copy and paste it into the my empty template (without any additional autoescapes or another) I got the escaped string <h3>foo</h3>. What I do wrong?
Try it with the twig raw filter:
{{ '<h3>foo</h3>' | trans | raw }}
However, do not use the raw filter if you are processing any user input! It allows for cross-site-scripting attacks, according to the creators of Symfony. See this similar question for a secure but more tedious alternative.
Holding HTML stuff in translations is wrong, because translators usually break it. But if you really need it:
{% trans %}<h3>foo</h3>{% endtrans %}
https://github.com/symfony/symfony/issues/2713#issuecomment-12510417