create.html.twig

{% extends "::base.html.twig"%}

{% block body %}
    <div>
        {{ form_start(form) }}

        {{ form_label(form.name) }}
        {{ form_widget(form.name) }}

        {% block choice_widget_options %}
            {% spaceless %}
                {% for group_label, choice in form.photo %}
                    {% if choice is iterable %}
                        <label for="{{ choice.vars.id }}"><img src="{{ choice.vars.label }}" width="128" height="128"/></label>
                        <input type="radio" id="{{ choice.vars.id }}" name="{{ choice.vars.full_name }}" value="{{ choice.vars.value }}"/>
                    {% else %}
                        <option value="{{ choice.value }}"{% if choice is selectedchoice(value) %} selected="selected"{% endif %}>
                        <img src="/images/flags/{{ choice.label }}.jpg" />
                        {{ choice.label|trans }}
                    </option>
                {% endif %}
            {% endfor %}
        {% endspaceless %}
    {% endblock choice_widget_options %}

    {#{{ form_label(form.photo) }}
    {{ form_widget(form.photo) }}#}

    {{ form_label(form.trainingTypes) }}
    {{ form_widget(form.trainingTypes) }}

    {{ form_label(form.equipments) }}
    {{ form_widget(form.equipments) }}

    {{ form_label(form.duration) }}
    {{ form_widget(form.duration) }}

    {{ form_label(form.availablePlaces) }}
    {{ form_widget(form.availablePlaces) }}

    {{ form_label(form.description) }}
    {{ form_widget(form.description) }}

    {{ form_label(form.submit) }}
    {{ form_widget(form.submit) }}

    {{ form_end(form) }}
</div>
{% endblock body %}

CreateTrainingType.php

<?php

namespace AppBundle\Form;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Bridge\Doctrine\Form\Type\EntityType;
use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
use Symfony\Component\Form\Extension\Core\Type\TextareaType;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use AppBundle\Entity\TrainingType;
use AppBundle\Entity\Equipment;
use AppBundle\Entity\Training;
use AppBundle\Entity\Photo;

class CreateTrainingType extends AbstractType {

    /**
     * {@inheritdoc}
     */
    public function buildForm(FormBuilderInterface $builder, array $options) {

        $builder->add('name', TextType::class, [
            'label' => 'training_create_form.name',
        ]);

        $builder->add('photo', EntityType::class, [
            'class' => Photo::class,
            'choice_label' => 'url',
            'label' => 'training_create_form.training_photo',
            'choice_translation_domain' => true,
            'required' => false,
            'expanded' => true,
        ]);

        $builder->add('trainingTypes', EntityType::class, [
            'class' => TrainingType::class,
            'choice_label' => 'name',
            'label' => 'training_create_form.training_types',
            'choice_translation_domain' => true,
            'multiple' => true,
            'expanded' => true,
            'required' => false,
        ]);

        $builder->add('equipments', EntityType::class, [
            'class' => Equipment::class,
            'choice_label' => 'name',
            'label' => 'training_create_form.equipments',
            'choice_translation_domain' => true,
            'required' => false,
            'multiple' => true,
            'expanded' => true,
        ]);

        $builder->add('duration', ChoiceType::class, [
            'label' => 'training_create_form.training_duration',
            'placeholder' => 'training_create_form.training_duration',
            'required' => false,
            'choice_translation_domain' => true,
            'choices' => $options['duration_minutes'],
            'choice_translation_domain' => false,
        ]);

        $builder->add('availablePlaces', ChoiceType::class, [
            'label' => 'training_create_form.available_places',
            'placeholder' => 'training_create_form.available_places',
            'required' => false,
            'choice_translation_domain' => true,
            'choices' => $options['available_places'],
        ]);

        $builder->add('description', TextareaType::class, [
            'label' => 'training_create_form.description',
            'required' => false,
        ]);

        $builder->add('submit', SubmitType::class, [
            'label' => 'common.save',
        ]);
    }

    /**
     * {@inheritdoc}
     */
    public function configureOptions(OptionsResolver $resolver) {
        $resolver->setDefaults(array(
            'data_class' => Training::class,
            'duration_minutes' => [
                '0' => 0,
                '15' => 15,
                '30' => 30,
                '45' => 45,
                '60' => 60,
                '75' => 75,
                '90' => 90,
                '105' => 105,
                '120' => 120,
            ],
            'price' => $this->generateValuesArray(20),
            'available_places' => [
                'training_create_form.personal' => 1,
                'training_create_form.small' => 5,
                'training_create_form.large' => 10,
            ],
        ));
    }

    /**
     * {@inheritdoc}
     */
    public function getBlockPrefix() {
        return 'appbundle_training';
    }

    /**
     *
     * @param int $range
     * @return array
     */
    private function generateValuesArray(int $range): array {
        $arr = [];
        for ($i = 0; $i < $range; $i++) {
            $arr[$i] = $i;
        }
        return $arr;
    }
}