Advanced usage: example with Doctrine

That's not really an advanced topic, but the sample will be a bit hard to read (as it takes many files), so let's say it targets more experienced Symfony users.

In this demo, we're displaying a MyArray of MyElements, both persisted into the database. The MyArray entity only have an id and a name, and MyElement has id, MyArray's id and a value. This is quite the same as we seen in all demos, but persisted.


Existing arrays:
Name Open Delete
___ ☘ Cela fonctionne ☘ Open Delete
___%20%E2%98%98%20Cela%20fonctionne%20%E2%98%98 Open Delete
___array___ Open Delete
---#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
---#i5784b3886628c4362594ffa43547edb4 Open Delete
---#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
' Open Delete
(orphée) Open Delete
#AlgoSucks Open Delete
%2372 Open Delete
%25237233333#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
%25237233333#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
%25237233333#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
%252372uuuu Open Delete
%252372uuuu#i21ef661e2506d5d0e513dce166c17d49 Open Delete
%252391 Open Delete
%253F#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
%253F#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
%253F#ie025efbbb0738ed01a63b326c174233e Open Delete
%27 Open Delete
%28orph%C3%A9e%29 Open Delete
<script>alert('test')</script> Open Delete
<script>alert('test')</script>%n%n%n%n%n%n Open Delete
<script>alert('test')</script>%n%n%n%n%n%n<script>alert('test')</script>%n%n%n%n%n%n<script>alert('test')</script>%n%n%n%n%n%n<script>alert('test')</script>%n%n%n%n%n%n<script>alert('test')</script>%n%n%n%n%n%n<script>alert('test')</script>%n%n%n%n%n%n<sc Open Delete
10 Open Delete
11 Open Delete
11#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
1111#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
1111#i21ef661e2506d5d0e513dce166c17d49 Open Delete
1111#i5784b3886628c4362594ffa43547edb4 Open Delete
1111#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
1111#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
1111#ie025efbbb0738ed01a63b326c174233e Open Delete
1111111111111111111111111111111111 Open Delete
1111111111111111111111111111111111#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
1111111111111111111111111111111111#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
11111111aaa Open Delete
1231 Open Delete
12313 Open Delete
1Alpha Open Delete
2 Open Delete
2222%20example Open Delete
2344234 Open Delete
32 Open Delete
8 Open Delete
86787 Open Delete
888 Open Delete
8888 Open Delete
8899 Open Delete
969 Open Delete
99 Open Delete
a Open Delete
a woop woop Open Delete
ñlkjlkj Open Delete
A1 Open Delete
ñsfkjaldsa Open Delete
aaaaa Open Delete
aaaaaaa Open Delete
aaaaaaaaaaaaaa Open Delete
aaaaaaaaaaaaaa22 Open Delete
тест Open Delete
aaamine Open Delete
aaamine22222#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
aaamine22222#i5784b3886628c4362594ffa43547edb4 Open Delete
aaamine22222#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
Abc1 Open Delete
Addresses Open Delete
adrian Open Delete
Alpha Open Delete
alsi Open Delete
as Open Delete
asas Open Delete
asdasd#i5784b3886628c4362594ffa43547edb4 Open Delete
asdasd#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
asdasdadasd Open Delete
asdfasdfasd8888 Open Delete
asdfg Open Delete
azazaz Open Delete
azerty Open Delete
balala Open Delete
bam Open Delete
bdfdfdfdf Open Delete
bjfhj#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
bjfhj#i27992875ec4286a24e569b1e015b0473 Open Delete
bjfhj#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
bjfhj#ie025efbbb0738ed01a63b326c174233e Open Delete
blah#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
blah#i21ef661e2506d5d0e513dce166c17d49 Open Delete
blah#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
Christos Open Delete
colombo Open Delete
cups Open Delete
Cuves Open Delete
cx%3Cwc Open Delete
cxcxx Open Delete
d Open Delete
dadd Open Delete
dasd Open Delete
dasdsad Open Delete
ddd Open Delete
delete_empty Open Delete
dfa#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
dfa#ie025efbbb0738ed01a63b326c174233e Open Delete
dfdsf Open Delete
dgh Open Delete
dghdfgdfgd Open Delete
dsadsadd Open Delete
dsds Open Delete
dsfsdfs Open Delete
dsvfdsfg%5D Open Delete
e Open Delete
ee Open Delete
eeeeee Open Delete
erwgfuıgj8hlı Open Delete
erwgfuıgj8hlı Open Delete
ewe Open Delete
exam Open Delete
exampldfdfe Open Delete
example Open Delete
example123#i5784b3886628c4362594ffa43547edb4 Open Delete
example123#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
example3243423 Open Delete
example33333 Open Delete
exampleasfsafa Open Delete
exampleasfsafasf#i27992875ec4286a24e569b1e015b0473 Open Delete
exampleasfsafasf#i5784b3886628c4362594ffa43547edb4 Open Delete
exampleasfsafasf#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
exampleasfsafasf#ie025efbbb0738ed01a63b326c174233e Open Delete
exampleaz Open Delete
exampledsdsdd Open Delete
exampledsdsdda Open Delete
exampleqqqq Open Delete
examplesadasdsdsad Open Delete
examplesdf Open Delete
exampleu Open Delete
examplevbnvnhv Open Delete
Existing arr Open Delete
Existing%20arrays: Open Delete
eze Open Delete
fc Open Delete
Fda Open Delete
fdf#i27992875ec4286a24e569b1e015b0473 Open Delete
fdf#i5784b3886628c4362594ffa43547edb4 Open Delete
fdf#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
fdf#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
fdgdf Open Delete
fdgfdgfdgfdgfd Open Delete
fdsf Open Delete
fff Open Delete
fg Open Delete
fgdfgfg Open Delete
fgfdgdgdf Open Delete
fgfdgfdgdg Open Delete
fgjgh Open Delete
fgt Open Delete
Fora Bolsonaro Open Delete
fr Open Delete
Fruits Open Delete
fsdfsdf Open Delete
fuck you Open Delete
gege Open Delete
ghione Open Delete
ghjk#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
ghjk#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
ghjk#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
Group%2BC Open Delete
Group%2BC#i27992875ec4286a24e569b1e015b0473 Open Delete
Group%2BC#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
Group%2BC#ie025efbbb0738ed01a63b326c174233e Open Delete
Hello World ! Open Delete
hellowrld Open Delete
HEYY :D Open Delete
HEYY%2520:D#i5784b3886628c4362594ffa43547edb4 Open Delete
HEYY%2520:D#ie025efbbb0738ed01a63b326c174233e Open Delete
hghgh Open Delete
hgjgjh Open Delete
hhmm Open Delete
hi%20bitches Open Delete
hjvhj Open Delete
hoho Open Delete
htt Open Delete
hujpizda Open Delete
i Open Delete
iooi Open Delete
iujjj Open Delete
j Open Delete
jb Open Delete
jtujjk Open Delete
kappa Open Delete
khj#i27992875ec4286a24e569b1e015b0473 Delete
khj#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
khj#ie025efbbb0738ed01a63b326c174233e Open Delete
kjh Open Delete
kjkjkj Open Delete
kjkk Open Delete
kkk Open Delete
kkk#i27992875ec4286a24e569b1e015b0473 Open Delete
kkk#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
klklklkl Open Delete
kmkm Open Delete
kpok%C2%B4p Open Delete
kpok´p Open Delete
lj Open Delete
lkjlkj Open Delete
llllllllllllllll Open Delete
lol Open Delete
Lorenz du Open Delete
mec Open Delete
mjn Open Delete
mkmkmk Open Delete
mm Open Delete
mmm Open Delete
moi Open Delete
mon putain de tableau Open Delete
mon tableau Open Delete
mon%20exemple Open Delete
mon%20putain%20de%20tableau Open Delete
mon%20tableau Open Delete
mp Open Delete
Mumbojumbo Open Delete
myarr Open Delete
Names Open Delete
тест Open Delete
New_test_2017-03_03 Open Delete
new%2520test Open Delete
ñlkjlkj Open Delete
nmn#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
nmn#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
nmn#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
nmn#ie025efbbb0738ed01a63b326c174233e Open Delete
Nouveau Open Delete
Ouiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii Open Delete
ouiou Open Delete
PC Open Delete
Pepa Open Delete
perses#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
perses#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
perses#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
pornhub.com Open Delete
pppppii Open Delete
pppppii#i27992875ec4286a24e569b1e015b0473 Open Delete
pppppp Open Delete
prabu Open Delete
project 1 Open Delete
Putin Open Delete
qqq Open Delete
question2 Open Delete
qwert Open Delete
qwery Open Delete
r Open Delete
rdfgdf Open Delete
rerererere Open Delete
RET Open Delete
rrrr Open Delete
rrrr#i21ef661e2506d5d0e513dce166c17d49 Open Delete
rrrr#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
rtr Open Delete
RV Open Delete
sa Open Delete
saASD Open Delete
sadsad Open Delete
salut les gens Open Delete
sam Open Delete
samArray Open Delete
samples Open Delete
sd Open Delete
sdasd Open Delete
sdg Open Delete
SED Open Delete
seeme#i21ef661e2506d5d0e513dce166c17d49 Open Delete
someNewArray#i27992875ec4286a24e569b1e015b0473 Open Delete
someNewArray#ie025efbbb0738ed01a63b326c174233e Open Delete
ssss Open Delete
Starojitski Open Delete
t Open Delete
t11 Open Delete
Ta mere la Open Delete
Ta mere la grosse choin Open Delete
Ta mere la grosse tchoin Open Delete
Ta%2520mere%2520la%2520grosse%2520choin#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
Ta%2520mere%2520la%2520grosse%2520choin#i21ef661e2506d5d0e513dce166c17d49 Open Delete
Ta%2520mere%2520la%2520grosse%2520choin#i5784b3886628c4362594ffa43547edb4 Open Delete
Ta%2520mere%2520la%2520grosse%2520choin#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
Ta%2520mere%2520la%2520grosse%2520choin#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
Ta%2520mere%2520la%2520grosse%2520choin#ie025efbbb0738ed01a63b326c174233e Open Delete
tesr Open Delete
test Open Delete
test2 Open Delete
test34 Open Delete
testarray Open Delete
teste2 Open Delete
Tester Open Delete
testing Open Delete
testN17 Open Delete
testname Open Delete
testsetse Open Delete
tet Open Delete
texte Open Delete
the test Open Delete
the+test Open Delete
this is an Open Delete
this is an array Open Delete
timo Open Delete
tojo Open Delete
tryy5 Open Delete
tset Open Delete
tttttz Open Delete
tutu Open Delete
ugghutugituiutu Open Delete
ukh Open Delete
uu Open Delete
uuu Open Delete
Volta%20Di Open Delete
Volta%20Dilma%20Fora%20Temer Open Delete
Volta%2520Dilma%2520Fora%2520Temer#i21ef661e2506d5d0e513dce166c17d49 Open Delete
Volta%2520Dilma%2520Fora%2520Temer#i5784b3886628c4362594ffa43547edb4 Open Delete
Volta%2520Dilma%2520Fora%2520Temer#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
Volta+Dilma+Fo Open Delete
wqeqe Open Delete
www Open Delete
wxc<wxc Open Delete
xcxcxcx Open Delete
yfcx Open Delete
yy Open Delete
yyyyyyyyyyyyyy Open Delete
тест Open Delete
<?php

namespace Fuz\AppBundle\Base;

use Fuz\AppBundle\Entity\Value;
use Fuz\AppBundle\Form\ValueType;
use Fuz\QuickStartBundle\Base\BaseController as QuickStartBase;
use Symfony\Component\Form\Extension\Core\Type;
use Symfony\Component\HttpFoundation\Request;

class BaseController extends QuickStartBase
{
    protected function createContextSample(Request $request, $name = 'form', $values = ['a', 'b', 'c'])
    {
        $data = ['values' => $values];

        $form = $this
           ->get('form.factory')
           ->createNamedBuilder($name, Type\FormType::class, $data)
           ->add('values', Type\CollectionType::class, [
               'entry_type'    => Type\TextType::class,
               'label'         => 'Add, move, remove values and press Submit.',
               'entry_options' => [
                   'label' => 'Value',
               ],
               'allow_add'    => true,
               'allow_delete' => true,
               'prototype'    => true,
               'attr'         => [
                   'class' => "{$name}-collection",
               ],
           ])
           ->add('submit', Type\SubmitType::class)
           ->getForm()
        ;

        $form->handleRequest($request);
        if ($form->isValid()) {
            $data = $form->getData();
        }

        return [
            $name         => $form->createView(),
            "{$name}Data" => $data,
        ];
    }

    protected function createAdvancedContextSample(Request $request, $name = 'advancedForm')
    {
        $a = new Value('a');
        $b = new Value('b');
        $c = new Value('c');

        $data = ['values' => [$a, $b, $c]];

        $form = $this
           ->get('form.factory')
           ->createNamedBuilder($name, Type\FormType::class, $data)
           ->add('values', Type\CollectionType::class, [
               'entry_type'   => ValueType::class,
               'label'        => 'Add, move, remove values and press Submit.',
               'allow_add'    => true,
               'allow_delete' => true,
               'prototype'    => true,
               'required'     => false,
               'attr'         => [
                   'class' => "{$name}-collection",
               ],
           ])
           ->add('submit', Type\SubmitType::class)
           ->getForm()
        ;

        $form->handleRequest($request);
        if ($form->isValid()) {
            $data = $form->getData();
        }

        return [
            $name         => $form->createView(),
            "{$name}Data" => $data,
        ];
    }
}
<?php

namespace Fuz\AppBundle\Controller;

use Fuz\AppBundle\Base\BaseController;
use Fuz\AppBundle\Entity\Address;
use Fuz\AppBundle\Entity\Addresses;
use Fuz\AppBundle\Entity\Fancy;
use Fuz\AppBundle\Entity\FancyCollection;
use Fuz\AppBundle\Entity\Value;
use Fuz\AppBundle\Form\AddressesType;
use Fuz\AppBundle\Form\FancyCollectionType;
use Fuz\AppBundle\Form\MyArrayType;
use Fuz\AppBundle\Form\ValueType;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Template;
use Symfony\Component\Form\Extension\Core\Type;
use Symfony\Component\HttpFoundation\Request;

/**
 * @Route("/advanced")
 */
class AdvancedController extends BaseController
{
    /**
     * Advanced usage
     *
     * You can reference your form collection in the view, instead of
     * putting a selector in the form type.
     *
     * @Route("/mvcCompliance", name="mvcCompliance")
     * @Template()
     */
    public function mvcComplianceAction(Request $request)
    {
        $data = ['values' => ['a', 'b', 'c']];

        $form = $this
           ->createFormBuilder($data)
           ->add('values', Type\CollectionType::class, [
               'entry_type'    => Type\TextType::class,
               'label'         => 'Add, move, remove values and press Submit.',
               'entry_options' => [
                   'label' => 'Value',
               ],
               'allow_add'    => true,
               'allow_delete' => true,
               'prototype'    => true,
               'required'     => false,
//                   'attr' => array (
//                           'class' => 'my-selector', <--- Not MVC compliant!
//                   ),
           ])
           ->add('submit', Type\SubmitType::class)
           ->getForm()
        ;

        $form->handleRequest($request);
        if ($form->isValid()) {
            $data = $form->getData();
        }

        return [
            'form' => $form->createView(),
            'data' => $data,
        ];
    }

    /**
     * Advanced usage
     *
     * A custom form theme helps define button's layout and positions as and where you want.
     *
     * @Route("/customFormTheme", name="customFormTheme")
     * @Template()
     */
    public function customFormThemeAction(Request $request)
    {
        $data = ['values' => [new Value('a'), new Value('b'), new Value('c')]];

        $form = $this
           ->createFormBuilder($data)
           ->add('values', Type\CollectionType::class, [
               'entry_type'   => ValueType::class,
               'label'        => 'Add, move, remove values and press Submit.',
               'allow_add'    => true,
               'allow_delete' => true,
               'prototype'    => true,
               'required'     => false,
               'attr'         => [
                   'class' => 'collection',
               ],
           ])
           ->add('submit', Type\SubmitType::class)
           ->getForm()
        ;

        $form->handleRequest($request);
        if ($form->isValid()) {
            $data = $form->getData();
        }

        return [
            'form' => $form->createView(),
            'data' => $data,
        ];
    }

    /**
     * Advanced usage
     *
     * Same demo as above, but with the add button located at the bottom of
     * the form instead of close to each field.
     *
     * @Route("/customFormThemeAddBottom", name="customFormThemeAddBottom")
     * @Template()
     */
    public function customFormThemeAddBottomAction(Request $request)
    {
        return $this->customFormThemeAction($request);
    }

    /**
     * Advanced usage
     *
     * Collection of collections are useful on the most dynamic forms, and a good
     * way to test if the plugin is working as expected too.
     *
     * @Route("/collectionOfCollections", name="collectionOfCollections")
     * @Template()
     */
    public function collectionOfCollectionsAction(Request $request)
    {
        $data = [
            'collections' => [
                [new Value('a'), new Value('b'), new Value('c')],
                [new Value('d'), new Value('e'), new Value('f')],
                [new Value('g'), new Value('h'), new Value('i')],
            ],
        ];

        $form = $this
           ->get('form.factory')
           ->createNamedBuilder('form', Type\FormType::class, $data)
           ->add('collections', Type\CollectionType::class, [
               'entry_type'    => Type\CollectionType::class,
               'label'         => 'Add, move, remove collections',
               'entry_options' => [
                   'entry_type'    => ValueType::class,
                   'label'         => 'Add, move, remove values',
                   'entry_options' => [
                       'label' => 'Value',
                   ],
                   'allow_add'      => true,
                   'allow_delete'   => true,
                   'prototype'      => true,
                   'prototype_name' => '__children_name__',
                   'attr'           => [
                       'class' => 'child-collection',
                   ],
               ],
               'allow_add'      => true,
               'allow_delete'   => true,
               'prototype'      => true,
               'prototype_name' => '__parent_name__',
               'attr'           => [
                   'class' => 'parent-collection',
               ],
           ])
           ->add('submit', Type\SubmitType::class)
           ->getForm()
        ;

        $form->handleRequest($request);
        if ($form->isValid()) {
            $data = $form->getData();
        }

        return [
            'form' => $form->createView(),
            'data' => $data,
        ];
    }

    /**
     * Advanced usage
     *
     * Looks like there are weird behaviours with Doctrine:
     * https://github.com/ninsuo/symfony-collection/issues/7
     * Let's test that live!
     *
     * ... hmm, doesn't look bad anyway
     *
     * @Route(
     *      "/usageWithDoctrine/{name}",
     *      name = "usageWithDoctrine",
     *      defaults = {
     *          "name" = "example"
     *      }
     * )
     * @Template()
     */
    public function usageWithDoctrineAction(Request $request, $name)
    {
        $repo = $this->getDoctrine()->getRepository('FuzAppBundle:MyArray');

        $data = $repo->findOneByName($name);
        if (is_null($data)) {
            $data = $repo->create($name);
        }

        $form = $this->createForm(MyArrayType::class, $data);
        $form->handleRequest($request);

        $form->get('save')->isClicked() && $form->isValid() && $repo->save($data);

        return [
            'names' => $repo->getArrayNames(),
            'form'  => $form->createView(),
            'data'  => $data,
        ];
    }

    /**
     * Related to usageWithDoctrine demo
     *
     * @Route(
     *      "/usageWithDoctrineDelete/{name}",
     *      name = "usageWithDoctrineDelete"
     * )
     */
    public function usageWithDoctrineDeleteAction(Request $request, $name)
    {
        $repo = $this->getDoctrine()->getRepository('FuzAppBundle:MyArray');
        if (!is_null($data = $repo->findOneByName($name))) {
            $repo->delete($data);
        }

        return $this->forward('FuzAppBundle:Advanced:usageWithDoctrine', [
            'name' => 'example',
        ]);
    }

    /**
     * A form having a theme and containing several fields
     *
     * @Route(
     *      "/formHavingSeveralFields",
     *      name = "formHavingSeveralFields"
     * )
     * @Template()
     */
    public function formHavingSeveralFieldsAction(Request $request)
    {
        $address = new Address();
        $address->setName('Mickael Steller');
        $address->setCompany('fuz.org');
        $address->setStreet('41 rue de la Paix');
        $address->setPostalcode('75002');
        $address->setCity('Paris');
        $address->setCountry('France');

        $addresses = new Addresses();
        $addresses->getAddresses()->add($address);

        $form = $this->createForm(AddressesType::class, $addresses);
        if ($request->isMethod('POST')) {
            $form->handleRequest($request);
        }

        return [
            'form' => $form->createView(),
            'data' => $addresses,
        ];
    }

    /**
     * Another example of form theme
     *
     * @Route(
     *      "/fancyFormTheme",
     *      name = "fancyFormTheme"
     * )
     * @Template()
     */
    public function fancyFormThemeAction(Request $request)
    {
        $fancyCollection = new FancyCollection();

        for ($i = 0; $i < 3; $i++) {
            $fancy = new Fancy();
            $fancyCollection->getFancyCollection()->add($fancy);
        }

        $form = $this->createForm(FancyCollectionType::class, $fancyCollection);

        $form->handleRequest($request);
        if ($form->isValid()) {
            $data = $form->getData();
        }

        return [
            'form' => $form->createView(),
            'data' => $fancyCollection,
        ];
    }
}
<?php

namespace Fuz\AppBundle\Entity;

use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\ORM\Mapping as ORM;

/**
 * MyArray
 *
 * @ORM\Table(
 *      name="my_array",
 *      uniqueConstraints={@ORM\UniqueConstraint(name="name_idx", columns={"name"})}
 * )
 * @ORM\Entity(repositoryClass="Fuz\AppBundle\Repository\MyArrayRepository")
 */
class MyArray
{
    /**
     * @var int
     *
     * @ORM\Column(name="id", type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    protected $id;

    /**
     * @var string
     *
     * @ORM\Column(name="name", type="string", length=255)
     */
    protected $name;

    /**
     * @var ArrayCollection
     *
     * @ORM\OneToMany(targetEntity="MyElement", mappedBy="array", cascade={"all"}, orphanRemoval=true)
     */
    protected $elements;

    public function __construct()
    {
        $this->elements = new ArrayCollection();
    }

    public function getId()
    {
        return $this->id;
    }

    public function getName()
    {
        return $this->name;
    }

    public function setName($name)
    {
        $this->name = $name;

        return $this;
    }

    public function getElements()
    {
        return $this->elements;
    }
}
<?php

namespace Fuz\AppBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * MyElement
 *
 * @ORM\Table(name="my_element"),
 * @ORM\Entity
 */
class MyElement
{
    /**
     * @var int
     *
     * @ORM\Column(name="id", type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    protected $id;

    /**
     * @var MyArray
     *
     * @ORM\ManyToOne(targetEntity="MyArray", inversedBy="elements")
     * @ORM\JoinColumn(name="my_array_id", referencedColumnName="id")
     */
    protected $array;

    /**
     * @var string
     *
     * @ORM\Column(name="value", type="string", length=255)
     */
    protected $value;

    public function setId($id)
    {
        $this->id = $id;

        return $this;
    }

    public function getId()
    {
        return $this->id;
    }

    public function setArray(MyArray $array)
    {
        $this->array = $array;

        return $this;
    }

    public function getArray()
    {
        return $this->array;
    }

    public function setValue($value)
    {
        $this->value = $value;

        return $this;
    }

    public function getValue()
    {
        return $this->value;
    }
}
<?php

namespace Fuz\AppBundle\Form;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\Extension\Core\Type\CollectionType;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;

class MyArrayType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('name', TextType::class, [
                'label' => 'Array name:',
        ]);

        $builder->add('elements', CollectionType::class, [
            'label'        => 'Add an element...',
            'entry_type'   => MyElementType::class,
            'allow_add'    => true,
            'allow_delete' => true,
            'prototype'    => true,
            'required'     => false,
            'by_reference' => true,
            'delete_empty' => true,
            'attr'         => [
                'class' => 'doctrine-sample',
            ],
        ]);

        $builder->add('save', SubmitType::class, [
                'label' => 'Save this array',
        ]);
    }

    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults([
            'data_class' => 'Fuz\AppBundle\Entity\MyArray',
        ]);
    }

    public function getBlockPrefix()
    {
        return 'my_array';
    }
}
<?php

namespace Fuz\AppBundle\Form;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;

class MyElementType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('value', TextType::class, [
            'required' => false,
        ]);
    }

    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults([
            'data_class' => 'Fuz\AppBundle\Entity\MyElement',
        ]);
    }

    public function getBlockPrefix()
    {
        return 'my_element';
    }
}
<?php

namespace Fuz\AppBundle\Repository;

use Doctrine\DBAL\Exception\UniqueConstraintViolationException;
use Doctrine\ORM\EntityRepository;
use Fuz\AppBundle\Entity\MyArray;

/**
 * MyArrayRepository.
 */
class MyArrayRepository extends EntityRepository
{
    public function create($name)
    {
        $data = new MyArray();
        $data->setName($name);
        try {
            $this->_em->persist($data);
            $this->_em->flush();
        } catch (UniqueConstraintViolationException $e) {
            return null;
        }

        return $data;
    }

    public function save(MyArray $data)
    {
        foreach ($data->getElements() as $element) {
            $element->setArray($data);
        }
        try {
            $this->_em->persist($data);
            $this->_em->flush();
        } catch (UniqueConstraintViolationException $e) {
            return null;
        }

        return $data;
    }

    public function getArrayNames()
    {
        $arrays = $this
            ->_em
            ->createQuery("
               SELECT arr.name
               FROM Fuz\AppBundle\Entity\MyArray arr
            ")
            ->execute();
        $names = [];
        foreach ($arrays as $array) {
            $names[] = $array['name'];
        }

        return $names;
    }

    public function delete(MyArray $data)
    {
        foreach ($data->getElements() as $element) {
            $this->_em->remove($element);
        }
        $this->_em->remove($data);
        $this->_em->flush();
    }
}

{% block my_element_label %}{% endblock %}
{% block my_element_errors %}{% endblock %}

{% block my_element_widget %}

    <div class="row">
        <div class="col-md-7">
            {{ form_widget(form.value) }}
        </div>
        <div class="col-md-2">
            <a href="#" class="collection-up btn btn-default">Up</a>
            <a href="#" class="collection-down btn btn-default">Down</a>
        </div>
        <div class="col-md-2">
            <a href="#" class="collection-remove btn btn-default">Remove</a>
            <a href="#" class="collection-add btn btn-default">Add</a>
        </div>
        <div class="col-md-1">
            <a href="#" class="collection-duplicate btn btn-default">Duplicate</a>
        </div>
    </div>

{% endblock %}
{% extends 'FuzAppBundle::layout.html.twig' %}

{% block extra_js %}
    <script src="{{ asset('js/jquery.collection.js') }}"></script>
{% endblock %}

{% block title %}Advanced usage: example with Doctrine{% endblock %}

{% block body %}

    <h2>{{ block('title') }}</h2>

    <p>
        That's not really an <i>advanced</i> topic, but the sample will be a bit hard to read (as it takes many files),
        so let's say it targets more experienced Symfony users.
    </p>

    <p>
        In this demo, we're displaying a MyArray of MyElements, both persisted into the database. The MyArray entity
        only have an id and a name, and MyElement has id, MyArray's id and a value. This is quite the same as we seen
        in all demos, but persisted.
    </p>

    <div class="text-center">
        <input type="button" id="new" class="btn btn-default" value="Create new array"/>
    </div>

    {%
        form_theme form
            'jquery.collection.html.twig'
            'FuzAppBundle:Advanced:doctrine-theme.html.twig'
    %}
    {{ form(form) }}

    <hr/>

    {% if names|length %}
        Existing arrays:
        <table class="table">
            <thead>
                <th>Name</th>
                <th>Open</th>
                <th>Delete</th>
            </thead>
            <tbody>
                {% for name in names %}
                    <tr>
                        <td>{{ name }}</td>
                        <td>
                            {% if data.name != name %}<a href="{{ path('usageWithDoctrine', {'name': name}) }}">Open</a>{% endif %}
                        </td>
                        <td><a href="{{ path('usageWithDoctrineDelete', {'name': name}) }}">Delete</a></td>
                    </tr>
                {% endfor %}
            </tbody>
        </table>
    {% endif %}

    {{
        tabs([
            'Base/BaseController.php',
            'Controller/AdvancedController.php',
            'Resources/views/Advanced/usageWithDoctrine.html.twig',
            'Resources/views/Advanced/doctrine-theme.html.twig',
            'Entity/MyArray.php',
            'Form/MyArrayType.php',
            'Entity/MyElement.php',
            'Form/MyElementType.php',
            'Repository/MyArrayRepository.php',
        ])
    }}

{% endblock %}

{% block script %}

    <script type="text/javascript">

        // only useful for the "new" button...
        $('#new').on('click', function() {
           var name = prompt("Which name would you like to use?");
           if (name) {
               var uri = '{{ path('usageWithDoctrine', {'name': 'a'}) }}';
               document.location = uri.substr(0, uri.length - 1) + encodeURIComponent(name);
           }
        });

        $('.doctrine-sample').collection();

    </script>

{% endblock %}