Twig / Symfony2 Dynamic Template - symfony

I want to do this kind of thing so that if a template doesn't exist it just renders the content. The below code won't work though as you can't code it like this.
{% if app.request.attributes.get('twig_parent_template') != "" %}
{% extends app.request.attributes.get('twig_parent_template') %}
{% block title "The Title Here" %}
{% endif %}
{% block content %}
Content here
{% endblock %}
Can I do this kind of thing somehow?

Twig extends has a good documentation on this topic.
Since you need to specify a template to extend, my thoughts go on creating a default template.
#Bundle/Resources/views/yourview.html.twig
{% set extender = app.request.attributes.get('twig_parent_template') ? : 'Bundle::default.html.twig' %}
{% extends extender %}
{% block title "Your title" %}
{% block content %}
Your content
{% endblock %}
#Bundle/Resources/views/default.html.twig
{% block content %}{% endblock %}
#Bundle/Resources/views/parent.html.twig
{% block title %}{% endblock %}
{% block content %}{% endblock %}
Doing such, if app.request.attributes.get('twig_parent_template') is set, it will render the template given in its value.
Otherwise, it will render default.html.twig containing only the content block

Related

Including header in base.twig for all pages

It is something pretty simple to be done outside of twig but here I am not even sure it is possible. This is the case:
Have base.html.twig. header.html.twig, home.html.twig.
#home.html.twig
{% extends 'base.html.twig' %}
{% block body %}
<h1>MY HTML</h1>
{% endblock %}
#base.html.twig
....some html here
{% block header%}{% endblock %}
{% block body %}{% endblock %}
....some more html here
#header.html.twig
{% extends 'base.html.twig' %}
{% block header %}
some here things that have to shown on every page through base.html.twig
{% endblock %}
I think it is pretty straight forward scenario but still my header doesn't show anywhere. As I understood from the documentation it is not working because this is how blocks work. It renders the page i am calling from my controller (home.html.twig) and the extended by it (base.html.twig). But wont call the header as well. So! How should I call the header on every page ?
To add the header on all pages just put include see example
{% block header %}
{% include 'header.html.twig' %}
{% endblock %}

Twig variable not available on extended page outside blocks?

I have this situation:
{% extends 'base.html.twig' %}
{% set isManager = (isAdmin or isAffiliateManager or app.user.isFinanceDepartment) %}
{% block content %}
[...](add some html if manager)
{% endblock %}
{% block css %}
(add some css if manager)
{% endblock %}
{% block js %}
(add some js if manager)
{% endblock %}
isAdmin and isAffiliateManager are declared in base.html.twig. I want to access isManager in all the blocks, without declaring it 3 times. Why isn't that possible?
Edit: simpler replication: https://twigfiddle.com/kcz6mn/2

Twig simple overriding with include

I have a simple Twig template, were I wan to override a block from the include.
base.html.twig:
{% block razem %}
{% include '_ga.code.html.twig' %}
{% endblock %}
_ga.code.html.twig:
{% block wspolny %}
should be common
{% endblock %}
{% block googleAnalitics %}
for overridden
{% endblock %}
success.html.twig
{% extends 'base.hmtl.twig' %}
{% block razem %}
{{ parent('wspolny') }}
{% block googleAnalitics %}
overriding part
{% endblock %}
{% endblock %}
Where is the error? http://twigfiddle.com/jsuk6a
I expected to render something like this:
should be common
overriding part
In twig you can not override blocks in a include. For this you have to use embed, but have to do this in the using template, not in the base one.
base.html.twig:
{% block razem %}{% endblock %}
_ga.code.html.twig:
{% block wspolny %}
should be common
{% endblock %}
{% block googleAnalitics %}
for overridden
{% endblock %}
success.html.twig
{% extends 'base.hmtl.twig' %}
{% block razem %}
{% embed '_ga.code.html.twig' %}
{% block googleAnalitics %}
overriding part
{% endblock %}
{% endembed %}
{% endblock %}
I think that the best way to override a block and reuse some others is to extend the base template where you want to perform an overriding (maybe adding some code to the pre-existing one) and to apply the so called horizontal reuse:
Horizontal reuse is an advanced Twig feature that is hardly ever needed in regular templates. It is mainly used by projects that need to make template blocks reusable without using inheritance.
Starting from that point, you should simply use the base.html.twig template and extend _ga.code.html.twig as follows:
success.html.twig
{% extends '_ga.code.hmtl.twig' %}
{# Simply use base - without overriding #}
{% use 'base.hmtl.twig' %}
{% block googleAnalitics %}
overriding part
{% endblock %}
If you want to make an overload of a single block you could also use the parent() function; so, you can add some other information to an extended block.
If you need something more complex you should go for dynamic inheritance.
{% extends ['base.html.twig', '_ga.code.html.twig'] %}

How to pass a block to an included template?

The structure of my Twig files looks like this:
- "skeleton_main"
- includes "skeleteon_header"
- render "block content"
- "skeleteon_header" should render "block breadcrumb"
- "partial"
- extends "skeleton_main"
- fills "block breadcrumb"
Now I can output "block breadcrumb" in "sekeleton_main" but it isn't passed to "skeleton_header". How can I access and render the block from within the included template? I tried using {% include '' with {} %} but without luck.
# skeleton_main
{% include 'header' %}
{% block content %}{% endblock %}
# header
{% block breadcrumb %}{% endblock %}
# partial
{% extends 'skeleton_main' %}
{% block breadcrumb %} Breadcrumb {% endblock %}
{% block content %} Content {% endblock %}
Maybe there's something wrong with this approach?
You are using include which does not permit overriding blocks.
Is there a reason to use include instead of extend ?
Another solution would be to use embed which does the same function as include, but permits overriding blocks at the same time:
http://twig.sensiolabs.org/doc/tags/embed.html
I think you have a wrong approch.
You should define header as a block, not as a separate template.
{# skeleton_main #}
{% block header %}
{% block breadcrumb %}{% endblock %}
{% endblock %}
{% block content %}{% endblock %}
{# partial #}
{% extends 'skeleton_main' %}
{% block breadcrumb %} Breadcrumb {% endblock %}
{% block content %} Content {% endblock %}

Problems with include

i have a lot of time programming in PHP, but im doing my first steps in Symfony.
Im try write Twigg templates, i have a public template in app/Resources/view/public.html.twig.
This file contains: http://pastebin.com/T1KGMfXL.
Now, in CloudBundle, have a base.html.twig:
{% extends '::public.html.twig' %}
{% block main %}
<div class="login_page">
<div class="login_box">
{% block content %} {% endblock %}
</div>
</div>
{% endblock %}
And the content in another twig file. For example, login.html.twig
{% extends 'base.html.twig' %}
{% block content %}
....
{% endblock %}
In the Controller, when an user try http://cloud.man.local/app.php/login:
public function staticAction($sitio)
{
// in this case, $sitio contains "login"
return $this->render("CloudBundle:Default:$sitio.html.twig");
}
So, the problem is that, only shows the footer, not show the content.
Any ideas ?.
You want to override a block which is inside another block, so in your case I think you should try this in the another twig files:
{% block main %}
{{ parent() }}
{% block content %} YOur content {% endblock %}
{% endblock %}
see http://twig.sensiolabs.org/doc/functions/parent.html
Hope it's helpful.
Best regard.

Resources