Twig variable doesn't exist in form_theme - symfony

I'm trying to override default Symfony2 form to implement the code below that will allow me to turn off html5 validation on and off by just passing a variable.
html5validation.toggle.html.twig
{% extends 'form_div_layout.html.twig' %}
{% block form_start -%}
{% if html5validation %}
{{ parent() }}
{% else %}
{{ parent
(
companyform, {'attr': {'novalidate': 'novalidate'}}
)
}}
{% endif %}
{%- endblock form_start %}
index.html.twig
form_theme company_form 'AcmeDemoBundle:html5validation.toggle.html.twig'
form(companyform)
In my controller I have:
$this->render('AcmeDemoBundle:Index:index.html.twig', array('html5validation' => false, 'companyform' => ...
If I try to dump(html5validation) inside index.html.twig I get bool(false).
But when I try to include the form_theme company_form AcmeDemoBundle:html5validation.toggle.html.twig
I get the error:
Variable "html5validation" does not exist
Can controller variables not be used inside themes?

Turns out only global variables are allowed to be used in form_theme(s) :(
Toggle html validation globally

Related

SonataAdminBundle templates - list and show fields template content duplication

My list and show fields contain the same content, but due the extending of base_list_field and base_show_field templates I have to create two separate templates.
list/location.html.twig:
{% extends 'SonataAdminBundle:CRUD:base_list_field.html.twig' %}
{% block field %}
{{ object.getCity }}, {{ object.getCountry.getName }}
{% endblock %}
show/location.html.twig:
{% extends 'SonataAdminBundle:CRUD:base_show_field.html.twig' %}
{% block field %}
{{ object.getCity }}, {{ object.getCountry.getName }}
{% endblock %}
As you can see huge part of code is duplicated. Is there a way to check the page I am currently in in twig and then extend certain base template? In this case I would be able to use one file instead of two for same content.
In twig it's possible to extend/include a dynamic template :
{# do test here on which page you are or pass through controller #}
{% if true %}
{% set template = 'SonataAdminBundle:CRUD:base_show_field.html.twig' %}
{% else %}
{% set template = 'SonataAdminBundle:CRUD:base_list_field.html.twig' %
{% endif %}
{% extends template %}
{% block field %}
{{ object.getCity }}, {{ object.getCountry.getName }}
{% endblock %}
(edit) if you don't want the hardcoded if I would pass the template variable through the controller and change the twig template to something like
{% extends template|default('SonataAdminBundle:CRUD:base_show_field.html.twig') %}

Twig use function multiple parameter

I am looking for using function "{% use %}" with multiple parameter in twig template.
all page template
{% use "common.html.twig" with
container as containerParent,
title as titleParent
%}
{# Some code ... #}
common.html.twig
{% block title %}{{ block(titleParent) }} - Admin{% endblock %}
{% block container %}
{# Some code ... #}
{{ block(containerParent) }}
{# Some code ... #}
{% endblock %}
When I tried that, my block container and title are not modified.
Maybe I didn't understood the doc ? http://twig.sensiolabs.org/doc/tags/use.html
I just want have access to function twig {{ parent() }} in my twig file which is included by {% use ... %}
Any suggestion ?
Sorry for my English, I am learning it...

Toggle html validation globally

I've made a couple of twig extensions but I'm stumped on this one.
I have the following template logic that I want to make into an extension.
I need reuse this logic into many different forms instead of copying and pasting the following code everywhere:
{% if html5validation is not defined %}
{{ form_start(some_form) }}
{% else %}
{% if html5validation %}
{{ form_start(some_form) }}
{% else %}
{{ form_start
(
company, {'attr': {'novalidate': 'novalidate'}}
)
}}
{% endif %}
{% endif %}
With the above code from the controller I can do the following to turn the html5 validator on and off:
$this->render(..., array(html5validation => false));
I want put the template logic into the twig extension below...
I just don't know if it's possible to implement what I've done above in a twig extension.
class HTML5Validation extends \Twig_Extension
{
public function getFunctions()
{
return array(
new \Twig_SimpleFunction('html5validation', array($this, 'setValidation')),
);
}
public function setValidation($boolean)
{
//Implement the same logic as the twig template.
}
public function getName()
{
return 'html5validator';
}
}
The short answer is no - you can't do this using a twig extension, it's not what they're meant for.
Looking at your template fragment I'd say you need to customise the form_start block. To do this see Symfony Form Theming and How to customise form rendering.
EDIT: This solution does not work if your customised code requires local twig variables - only global twig variables are available for form theming. You can define your own twig globals in config.yml or in a twig extension.
For example, to override form_start globally, you find the default definition of the form_start block in form_div_layout.html.twig, copy it into your own form theme file e.g. YourBundle/Form/fields.html.twig, modify it as required and and update the twig configuration to apply your form theme file. Something like this:
{# src/YourBundle/Form/fields.html.twig #}
{% extends 'form_div_layout.html.twig' %}
{% block form_start -%}
{% if html5validation is not defined %}
{{ parent() }}
{% else %}
{% if html5validation %}
{{ parent() }}
{% else %}
{{ parent
(
company, {'attr': {'novalidate': 'novalidate'}}
)
}}
{% endif %}
{% endif %}
{%- endblock form_start %}
Config:
# app/config/config.yml
twig:
form:
resources:
- 'YourBundle:Form:fields.html.twig'
I actually found a better way to do what I wanted.
As a plus it works globally instead of having to populate more fields into your controller!
In YourBundle/Resources/views/validation.toggle.html.twig
{% extends 'form_div_layout.html.twig' %}
{% block form_start -%}
{% if html5validation is defined and html5validation == false %}
{% set attr = attr|merge({'novalidate': 'novalidate'}) %}
{% endif %}
{{ parent() }}
{%- endblock form_start %}
Then if you want to turn off html5 validation across the whole website:
# app/config/config.yml
twig:
global:
html5validation: false
Or
Even better just use it in your dev_config.yml if you want validation on by default on production mode but the ability to toggle validation on and off for dev mode.
# app/config/dev_config.yml
twig:
global:
html5validation: false
resources:
- 'YourBundle::validation.toggle.html.twig'
Finally use it in your twig template normally:
{% form_theme your_form 'YourBundle::validation.toggle.html.twig' %}
form_start(your_form)
Reusable and non invasive, exactly like I wanted it. :)
I got the hint from:
https://github.com/symfony/symfony/issues/11409#issuecomment-49358377
In the absence of a more elegant solution, you can always put the twig fragment given in your question into a separate file and use twig include from your various forms. The included fragment has access to the variables from the surrounding context:
{# YourBundle/Resources/views/form_start.html.twig #}
{% if html5validation is not defined %}
{{ form_start(some_form) }}
{% else %}
{% if html5validation %}
{{ form_start(some_form) }}
{% else %}
{{ form_start
(
company, {'attr': {'novalidate': 'novalidate'}}
)
}}
{% endif %}
{% endif %}
Then in the twig file for the form:
{% include 'YourBundle::form_start.html.twig' %}
If you typically pass a 'form' variable into render() in your controller(s) then you can use that in your form_start fragment. Otherwise you can pass the appropriate form in as a variable:
{% include 'YourBundle::form_start.html.twig' with {'form': localForm} %}

Custom form field template with twig

I'd like to create a custom template in twig to render a form field.
Example:
{{ form_row(form.field) }}
This can be overriden by form theming
{% block form_row %}
... custom code
{% endblock form_row %}
What I would like to do is this:
{% block custom_row %}
... custom code
{% endblock custom_row %}
and use it like this:
{{ custom_row(form.field }}
however, this throws an exception that method custom_row is not found.
My understanding is that this can be done with Twig extension, but I don't know how to register a block to be a function.
Update
what I actually want:
I use twitter bootstrap and a bundle which overrides all the form themes. And it renders a div around a radio, so it can't be inlined. So I wanted to do something like this:
copy their template and get rid of the div:
{% block inline_radio_row %}
{% spaceless %}
{% set col_size = col_size|default(bootstrap_get_col_size()) %}
{% if attr.label_col is defined and attr.label_col is not empty %}
{% set label_col = attr.label_col %}
{% endif %}
{% if attr.widget_col is defined and attr.widget_col is not empty %}
{% set widget_col = attr.widget_col %}
{% endif %}
{% if attr.col_size is defined and attr.col_size is not empty %}
{% set col_size = attr.col_size %}
{% endif %}
{% if label is not sameas(false) %}
{% if not compound %}
{% set label_attr = label_attr|merge({'for': id}) %}
{% endif %}
{% if required %}
{% set label_attr = label_attr|merge({'class': (label_attr.class|default('') ~ ' required')|trim}) %}
{% endif %}
{% if label is empty %}
{% set label = name|humanize %}
{% endif %}
{% set label_attr = label_attr|merge({'class': (label_attr.class|default('') ~ ' radio-inline')|trim}) %}
<label{% for attrname, attrvalue in label_attr %} {{ attrname }}="{{ attrvalue }}"{% endfor %}>
{{ block('radio_widget') }}
{{ label|trans({}, translation_domain) }}
</label>
{% else %}
{{ block('radio_widget') }}
{% endif %}
{{ form_errors(form) }}
{% endspaceless %}
{% endblock inline_radio_row %}
and then
{{ inline_radio_row(form.field) }}
I ended up just overriding the whole theme, and added ifs around the div in question, a the class (radio-inline). But I'm still wondering if there's a way to make this work. Seems like it makes you work so hard for something so simple.
Update 2
I found the functionality:
class FormExtension extends \Twig_Extension
{
public function getFunctions()
{
return array(
'inline_radio_row' => new \Twig_Function_Node(
'Symfony\Bridge\Twig\Node\SearchAndRenderBlockNode',
array('is_safe' => array('html'))
),
);
}
}
This does exactly what I want, but it says it's deprecated. Anyone knows an updated version of how to use this?
Update 3
Similar functionality can be also achieved with http://twig.sensiolabs.org/doc/tags/include.html
You can use the twig functions for each part of a form row:
form_label(form.field)
form_widget(form.field)
form_errors(form.field)
For example:
<div class="form_row">
{{ form_label(form.field) }} {# the name of the field #}
{{ form_errors(form.field) }} {# the field #}
{{ form_widget(form.field) }} {# the errors associated to the field #}
</div>
You can use form theming.
Step by step:
1. Form Type Class
Check the name in your class
public function getName() {
return 'hrQuestionResponse';
}
2. Include a custom theme in your template
{% form_theme form 'InterlatedCamsBundle:Form:fields.html.twig' %}
3. Find the block
Can be quite difficult. For the bootstrap bundle, as you seem to have found it is in ./vendor/braincrafted/bootstrap-bundle/Braincrafted/Bundle/BootstrapBundle/Resources/views/Form/bootstrap.html.twig and you have found the block radio_row. I have been finding the block by putting output in the source template and overriding more blocks than I need. In 2.7 there is a theme 'rendering call graph'.
4. Override the block
Copy the block from the master template and call it replace the standard term with the name of in the FormType found in step 1.
Don't forget to also change the endblock name.
e.g.
{% block hrQuestionResponse_widget %}
hrQuestionResponse_row
{% spaceless %}
{% set class = '' %}
...
{% endspaceless %}
{% endblock hrQuestionResponse_widget %}
In your case because you can only call form_widget() you will need to override _widget. You could extract only the content that you need, or you can override the block chain to radio_row.

symfony2: Applying theme to individual field for collection type

Just applying a theme to form field is easy e.g.:
{% form_theme form _self %}
{% block _product_name_widget %}
{{ block('field_widget') }}
{% endblock %}
but what if the form field is of collection type? E.g.: product['models'][1][comment,
I have no ideas how to customize it. (This may be the first kind question here)
UPDATE: anwser here: Symfony2: collection form field type with data-prototype
As of Symfony 2.1 (it may work as well for 2.0 but not sure) to apply theme for collection you do this way:
Lets say we have a collection of products (we have multiple Product entities)
Controller:
$repository = $this->getDoctrine()->getRepository('ExampleBundle:Product');
$products = $repository->findAll();
$productCollection = new Products;
foreach ($products as $product) {
$productCollection->getProducts()->add($product);
}
$collection = $this->createForm(new ProductsType, $productCollection);
return $this->render('ExampleBundle:Default:index.html.twig', array(
'collection' => $collection->createView()
));
Your theme can look like this:
{% block _productsType_products_entry_name_row %}
<div class="yourDivName">{{ block('form_widget') }}</div>
{% endblock %}
{% block _productsType_products_entry_description_row %}
<div class="yourDivDescription">{{ block('form_widget') }}</div>
{% endblock %}
The trick is with "entry" where twig will do the job for you to apply above changes to each row and for each field you specify
Hope that helps!
You can do with override collection_widget block:
{% block collection_widget %}
{% spaceless %}
{% if prototype is defined %}
{% set attr = attr|merge({'data-prototype': form_row(prototype) }) %}
{% endif %}
{{ block('form_widget') }}
{% endspaceless %}
{% endblock collection_widget %}
If you want how to customize form collection type try to look at this Product Bundle
You can override the collection_widget theme for a single field by referencing the widget like this as well.
For example, if "categories" is a "collection" widget on a ProductType form, you can do this.
{% block _product_categories_widget %}
{% for child in form %}
{{- form_row(child) -}}
<hr>
{% endfor %}
{% endblock %}

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