Symfony2 : accessing entity fields in Twig with an entity field type

Question

Here is my FormType :

public function buildForm(FormBuilder $builder, array $options)
{
    $builder
        ->add('user', 'entity', array(
            'class'   => 'UserBundle:User',
            'expanded' => true,
            'property' => 'name',
        ));
}

Is there a way to access user's fields in the view (Twig) ?

I'd like to do something like this :

{% for u in form.user %}
    {{ form_widget(u) }}
    {{ form_label(u) }}
    {% if u.moneyLeft > 0 %}
    <span>{{ u.name }} : {{ u.moneyLeft }} €</span>
    {% endif %}
{% endfor %}

... where moneyLeft and name are fields from User entity.

Here's a link to a Symfony issue at Github that has some nice code to get folks headed in the right direction: Issue 3836 — keyboardSmasher
– keyboardSmasher, Commented Jan 3, 2014 at 7:04

Aaron Geiser · Accepted Answer · 2014-10-01 00:40:37Z

31

In Symfony 2.5 - you can accomplish this by accessing the data from each choice using the child's index value.

In the form builder - as you might expect:

public function buildForm(FormBuilderInterface $builder, array $options)
{
    // Generate form
    $builder
        ->add('child', 'entity', array(
            'class'         => 'MyBundle:Child',
            'label'         => 'Children',
            'property'      => 'any_property_for_label',
            'expanded'      => true,
            'multiple'      => true
        ));
}

In the Twig template:

{{ form_start(form) }}
{% for child in form.child %}
    {% set index = child.vars.value %}{# get array index #}
    {% set entity = form.child.vars.choices[index].data %}{# get entity object #}
    <tr>
        <td>{{ form_widget(child) }}</td>{# render checkbox #}
        <td>{{ entity.name }}</td>
        <td>{{ entity.email }}</td>
        <td>{{ entity.otherProperty }}</td>
    </tr>
{% endfor %}
{{ form_end(form) }}

edited Oct 1, 2014 at 0:40

answered Sep 30, 2014 at 23:05

Aaron Geiser

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2 Comments

AphonopelmaChalcodes Over a year ago

I suggest using {% set entity = projectForm.stages.vars.choices[loop.index - 1].data %} instead of getting index from entity property value. This way you can avoid unknown array key error.

Alexander Schranz Over a year ago

@NikDenisov the loop has also a loop.index0 variable: twig.symfony.com/doc/2.x/tags/for.html#the-loop-variable so no need for -1

Bernhard Schussek · Accepted Answer · 2012-07-25 17:44:22Z

10

As of today, you can do the following in the master branch (and upcoming 2.1):

{{ u.vars.data.name }}

u is the form view for the user, which contains a list of attached variables. The data variable contains the normalized data of the form, which usually is your object (unless you added a custom model transformer).

In earlier versions of Symfony, you can do:

{{ u.vars.value.name }}

The value variable contains the view data of the form, which is also your object (unless you added a custom model or view transformer).

If you are working on Symfony master or >=2.1, I recommend to access data instead of value.

answered Jul 25, 2012 at 17:44

Bernhard Schussek

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6 Comments

ncatnow Over a year ago

For an entity form type I had to do this: {{ u.data.field }} when iterating through choices

keyboardSmasher Over a year ago

How this got votes, I have no idea. It's just plain wrong. I posted a comment under the OP with a link to a solution.

DonCallisto Over a year ago

@keyboardSmasher: you could notice that bernhard is the same person whom closed the issue that you've linked onto github so I'm sure that you can figure out, now, why this answer has 6 upvotes: I'm sure (as I would answer the same way) that this method is working

B Rad Over a year ago

Is there a way to accomplish this with using a query_builder?

B Rad Over a year ago

answer by Aaron below helped my scenario. Thanks anyway.

|

Jonathan · Accepted Answer · 2016-11-03 12:25:51Z

9

This worked for me in Symfony 3.1 for a radio widget:

{% set entity = form.parent.vars.choices[form.vars.name].data %}

answered Nov 3, 2016 at 12:25

Jonathan

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1 Comment

Eve Over a year ago

Hello, how can I do the same but with a CollectionType field ? Impossible to access to collection data because the method is private...

Jason Roman · Accepted Answer · 2015-11-24 22:27:10Z

5

Version 2.6.7

Similar to what Aaron Geiser suggested, you can use customised form widgets to achieve this:

{# src/AppBundle/Resources/views/Form/fields.html.twig #}
{% extends 'form_div_layout.html.twig' %}

{%- block entity_widget -%}
    <div {{ block('widget_container_attributes') }}>
    {%- for n, child in form %}
        {{- form_widget(child, {
            'entity': form.vars.choices[n].data
        }) -}}
        {{- form_label(child) -}}
    {% endfor -%}
    </div>
{%- endblock %-}

{%- block radio_widget -%}
{# You now have access to entity #}
{%- endblock -%}

edited Nov 24, 2015 at 22:27

Jason Roman

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answered May 20, 2015 at 8:59

Jonny

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Comments

Community · Accepted Answer · 2017-05-23 11:46:34Z

3

Update of Bernhard Schussek's answer for Symfony 2.8.4 (or even somewhat lower version):

{% for key,value in form.user %} {# key is the ID in the database table #}
    {{ form_widget(value, {'label':value.vars.label}) }}
    {{ form.user.vars.choices[key].data.moneyLeft }} {# this syntax is new #}
{% endfor %}

edited May 23, 2017 at 11:46

CommunityBot

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answered May 5, 2016 at 14:07

Thomas Landauer

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