This code does not work.
{% if url == 'example.com/categoty' %}
some text
{% endif %}
How to do this?
I assume you don't have url variable assigned. There is a global parameter for that:
{% if app.request.requestUri == '/categoty' %}
some text
{% endif %}
{% if 'mysite/news' in url %}
some text
{% endif %}
Related
Twig newbie here :) And I'm using WordPress.
In a .twig file, I can display the category.slug this way:
{% for category in post.terms('category') %}
{{ category.slug }}
{% endfor %}
But how do I use an if construct with the category.slug?
I.e., I want to display the category if the post is in the category in-the-news. This obviously doesn't work:
{% for category in post.terms('category') %}
{% if category.slug == in-the-news %}
In The News
{% else %}
Other Category
{% endif %}
{% endfor %}
This is twig version is 1.34. Fiddle here from Matteo: https://twigfiddle.com/89t9gr
This works. I think the issue in my localhost and Twig v1.34 was having no quotes around the category slugs. And, for me, {% for category in categories %} does not work and does not throw an error.
{% for category in post.terms('category') %}
{% if category.slug == "in-the-news" %}
In The News
{% elseif category.slug == "videos" %}
Video
{% else %}
All Else
{% endif %}
{% endfor %}
I'm trying to validate the size of an array before print a value, but the if instruction doesn't work. Always pass thought the if.
This is my code:
{% set size = custodian.phoneNumbers|length %}
{% if size > 3 %}
{% block phone_number3 %}{{phoneNumbers[2].phoneNumber }}{% endblock %}
{% endif %}
size is equal to 2
I try with this code and does not work as well.
{% set size = true %}
{% if size == false %}
{{size}}
{% endif %}
Please help!!!
Thanks in advance.
I found the answers myself
The block should be outside of the if.
{% block phone_type3 %}
{% if size >= 3 %}
{{ custodian.phoneNumbers[2].phoneType.value }}:
{% else %}
:
{% endif %}
{% endblock %}
{% block phone_number3 %}
{% if size >= 3 %}
<b>{{ custodian.phoneNumbers[2].phoneNumber }}</b>
{% endif %}
{% endblock %}
I'm building a page where member addresses are printed to a sheet of labels, and once a sheet is full with 14 addresses on a page, I then want to put a page break after it so that the addresses can be printed on multiple sheets of paper.
How can I achieve this using Twig?
This is my current Twig code:
{% for row in data %}
<div class="label-page">
<div class="label-section L7163">
<p>{{row.FirstName}} {{row.Surname}}</p>
<p>{{row.AddressLine1}}</p>
{% if row.AddressLine2 != NULL or row.AddressLine2 != '' %}
<p>{{row.AddressLine2}}</p>
{% endif %}
{% if row.Town != NULL or row.Town != '' %}
<p>{{row.Town}}</p>
{% endif %}
{% if row.County != NULL or row.County != '' %}
<p>{{row.County}}</p>
{% endif %}
{% if row.Postcode != NULL or row.Postcode != '' %}
<p>{{row.Postcode}}</p>
{% endif %}
</div>
</div>
{% endfor %}
You can use loop.index in your twig loop which returns the current iteration of the loop and divisible by(num)
{% for row in data %}
{% if loop.index is divisible by(10) %}
/*your page break*/
{% endif %}
{% endfor %}
I'am using following code to set selectedGallery to a defaultValue. The default Value should be galleryData's first Element.
Sadly it doesn't work. selectedGallery does not exist after the snipped run through...
Thanks for help
{% if selectedGallery is not defined %}
{% for gallery in galleryData|keys|slice(0, 1) %}
{% set selectedGallery = gallery %}
//if i access galleryData here, it exists ?!
{% endfor %}
{% endif %}
later the same file:
<div id="{{idPref}}PictureBox" class="backA">
{% block pictureBox %}
{% for picture in galleryData[selectedGallery] %}
{{selectedGallery}}
{% endfor %}
{% endblock %}
Symfony says that the variable doesn't exists.
Try:
First:
{% if selectedGallery is not defined %}
{% set selectedGallery = galleryData|keys|first %}
{# ... #}
http://twig.sensiolabs.org/doc/filters/first.html
Later:
<div id="{{idPref}}PictureBox" class="backA">
{% block pictureBox %}
{% for picture in attribute(galleryData, selectedGallery) %}
{{picture}}
{% endfor %}
{% endblock %}
{# ... #}
http://twig.sensiolabs.org/doc/functions/attribute.html
I'm using Symfony2 with Twig and when trying to determine the class that should be a div Twig says that all 4 classes are active even beeing in an if..else clause.
Redirect has only 1 value. I checked the syntax and I think it's correct so maybe I'm missing something.
It's correct my code or is something wrong in the Twig comparision (equality or if..else clause)?
Here is the Twig code:
{% if redirect == 'a' %}
{% block classA 'active' %}
{% elseif redirect == 'b' %}
{% block classB 'active' %}
{% elseif redirect == 'c' %}
{% block classC 'active' %}
{% else %}
{% block classD 'active' %}
{% endif %}
And the controller code:
[...]
$redirect = "a";
return $this->render('FrontendBundle:Default:delete.html.twig', array(
'id' => $id,
'redirect' => $redirect,
'text' => $text)
);
Edited.
Solution
I found that it's not possible to use if clauses out of a block, so the solution goes ahead using one block for each class.
I've also thought that a better solution would be to use a dynamic name block, but i read that's not possible.
Finally I found this that solve my problem in a different way: http://peter-hoffmann.com/2012/highlight-active-menu-item-with-twig-and-silex.html
Kind regards.
Even though this question is old, I want to clarify a few things, since there is no real answer provided.
The underlying problem here is that block is evaluated during compile time, while if is evaluated during run-time. This means that blocks are always defined, one cannot define blocks conditionally. That is also the reason why blocks cannot have dynamic names.
With the template from the question, this is not a problem:
classes.html.twig:
{% if redirect == 'a' %}
{% block classA %}active{% endblock %}
{% elseif redirect == 'b' %}
{% block classB %}active{% endblock %}
{% elseif redirect == 'c' %}
{% block classC %}active{% endblock %}
{% else %}
{% block classD %}active{% endblock %}
{% endif %}
If we render this, we get 'active', i.e. the expected output. While each block is defined, only one of them is rendered, because of the if. The problem is only revealed if we have inheritance. So let's say we have the following parent template (I assume something like that was used by the poster):
parent.html.twig:
{% block classA %}{% endblock %}
{% block classB %}{% endblock %}
{% block classC %}{% endblock %}
{% block classD %}{% endblock %}
And change our extending template to extend this (also added classE for demonstration purposes):
classes.html.twig:
{% extends "parent.html.twig" %}
{% if redirect == 'a' %}
{% block classA %}active{% endblock %}
{% elseif redirect == 'b' %}
{% block classB %}active{% endblock %}
{% elseif redirect == 'c' %}
{% block classC %}active{% endblock %}
{% else %}
{% block classD %}active{% endblock %}
{% endif %}
{% block classE %}undefined{% endblock %}
Now, if we render classes.html.twig, we get 'activeactiveactiveactive'. As before, the blocks are all defined with 'active', but the parent template has no conditional rendering, so all of them are shown. Block 'classE' is not rendered, because it is not defined in the parent template.
To fix this, one needs to essentially swap the if and block statements.
{% extends "parent.html.twig" %}
{% block classA %}
{% if redirect == 'a' %}
active
{% endif %}
{% endblock %}
{% block classB %}
{% if redirect != 'a' and redirect == 'b' %}
active
{% endif %}
{% endblock %}
{% block classC %}
{% if redirect != 'a' and redirect != 'b' and redirect == 'c' %}
active
{% endif %}
{% endblock %}
{% block classD %}
{% if redirect != 'a' and redirect != 'b' and redirect != 'c' %}
active
{% endif %}
{% endblock %}
Sadly, we lose the if/else structure when we do this, so we have to write more conditions. To fix this, we can add an intermediate step using a variable.
{% extends "classes.html.twig" %}
{% if redirect == 'a' %}
{% set render = 'a' %}
{% elseif redirect == 'b' %}
{% set render = 'b' %}
{% elseif redirect == 'c' %}
{% set render = 'c' %}
{% else %}
{% set render = 'd' %}
{% endif %}
{% block classA %}
{% if render == 'a' %}
active
{% endif %}
{% endblock %}
{% block classB %}
{% if render == 'b' %}
active
{% endif %}
{% endblock %}
{% block classC %}
{% if render == 'c' %}
active
{% endif %}
{% endblock %}
{% block classD %}
{% if render == 'd' %}
active
{% endif %}
{% endblock %}
I'm not sure if you're taking the most efficient approach for this kind of behavior, but regardless, shouldn't your blocks be defined like this?
{% block classA %}active{% endblock %}