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
__________________________________________ Open Delete
_________AAAAAAAAAAAAA_______ Open Delete
_Greeting Open Delete
_Greeting, :D happy 2018 Open Delete
!!!!sdsdsd Open Delete
. Open Delete
#69 Open Delete
#72 Open Delete
%2372 Open Delete
%237233333 Open Delete
%2372uuuu Open Delete
%2391 Open Delete
%25237233333 Open Delete
%25237233333#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
%25237233333#i21ef661e2506d5d0e513dce166c17d49 Open Delete
%252372uuuu Open Delete
%252372uuuu#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
%252391 Open Delete
%253F#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
%253F#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
%253F#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
%253F#ie025efbbb0738ed01a63b326c174233e Open Delete
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<LETTRE GREC>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 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
<sdsads Open Delete
000tom Open Delete
10 Open Delete
11 Open Delete
11#i27992875ec4286a24e569b1e015b0473 Open Delete
11111111111111 Open Delete
1111111111111111111111111111111111#i27992875ec4286a24e569b1e015b0473 Open Delete
1111111111111111111111111111111111#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
1111111111111111111111111111111111#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
1121 Open Delete
121113 Open Delete
121113aaaaa Open Delete
1231 Open Delete
1aa Open Delete
1Alpha Open Delete
2222%20example Open Delete
2232323 Open Delete
3 Open Delete
456 Open Delete
8 Open Delete
8899 Open Delete
999 Open Delete
a Lorenz Open Delete
a woop woop Open Delete
ñsf Open Delete
aa Open Delete
ñlkjlkj Open Delete
ñsfkjaldsa Open Delete
ñsfkjaldsa Open Delete
aaaaaa Open Delete
тест Open Delete
aaamine22222#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
aarzarzample Open Delete
aasdasd Open Delete
adsada Open Delete
adsfdsf Open Delete
array1 Open Delete
Array2 Open Delete
as Open Delete
asaasexample Open Delete
asda Open Delete
asdas Open Delete
asdasd#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
asdasd#i21ef661e2506d5d0e513dce166c17d49 Open Delete
asdasdadasd Open Delete
asdasdadasd#i21ef661e2506d5d0e513dce166c17d49 Open Delete
asdasdadasd#i5784b3886628c4362594ffa43547edb4 Open Delete
asds Open Delete
azerty'A=0 Open Delete
balala Open Delete
bam Open Delete
bdfdfdfdf Open Delete
bjfhj#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
bjfhj#i21ef661e2506d5d0e513dce166c17d49 Open Delete
bjfhj#i5784b3886628c4362594ffa43547edb4 Open Delete
bjfhj#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
blah#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
blah#i5784b3886628c4362594ffa43547edb4 Open Delete
Cela fonctionne Open Delete
ciao Open Delete
cxcxx Open Delete
D happy 2018 Open Delete
D#ie025efbbb0738ed01a63b326c174233e Open Delete
das Open Delete
ddazdaz Open Delete
ddd Open Delete
dfdt Open Delete
dfsdf Open Delete
dftydfty Open Delete
dfzre Open Delete
dghdfgdfgd Open Delete
drgd Open Delete
dsadsadd Open Delete
dsds Open Delete
dsfsdfs Open Delete
dsvfdsfg%5D Open Delete
e Open Delete
ejemplito 2 Open Delete
ejemplo 2017-11-23 Open Delete
eqweqwe Open Delete
erwgfu%C4%B1gj8hl%C4%B1 Open Delete
exampldfdfe Open Delete
example Delete
example Radu Open Delete
example%20exam Open Delete
example123#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
example123#ie025efbbb0738ed01a63b326c174233e Open Delete
example33333 Open Delete
exampleasd Open Delete
exampleasfsafa Open Delete
exampleasfsafasf Open Delete
exampleasfsafasf#i27992875ec4286a24e569b1e015b0473 Open Delete
exampleasfsafasf#i5784b3886628c4362594ffa43547edb4 Open Delete
exampleasfsafasf#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
exampled Open Delete
exampledds Open Delete
examplee Open Delete
examplefh Open Delete
examplehfghfhfgfg Open Delete
examplemmm Open Delete
examplenhnhd Open Delete
examplesadasdsdsad Open Delete
examplesdf Open Delete
exampless Open Delete
exampple Open Delete
exdedededdedeeample Open Delete
Existing%20arrays: Open Delete
fdf#i21ef661e2506d5d0e513dce166c17d49 Open Delete
fdf#i27992875ec4286a24e569b1e015b0473 Open Delete
fdf#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
fdf#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
fdf#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
fdg Open Delete
fdsfds Open Delete
ff d Open Delete
fff Open Delete
ffff Open Delete
fgdfg Open Delete
fgjgh Open Delete
fgt Open Delete
foo Open Delete
Fora Bolsonaro Open Delete
frfrf Open Delete
fsda Open Delete
fsdfd Open Delete
fuck you Open Delete
gfdgdf Open Delete
gfgddgfd Open Delete
gg'A=0 Open Delete
ghgtytyt Open Delete
ghione Open Delete
ghjk Open Delete
ghjk#i27992875ec4286a24e569b1e015b0473 Open Delete
Group C Open Delete
Group%20B Open Delete
Group%2BC#i5784b3886628c4362594ffa43547edb4 Open Delete
Group%2BC#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
gtgt Open Delete
gufc fucvuy Open Delete
gufc fucvuy dd Open Delete
HEYY%2520:D Open Delete
HEYY%2520:D#i21ef661e2506d5d0e513dce166c17d49 Open Delete
hg Open Delete
hghgh Open Delete
hgjgjh Open Delete
hgkjh Open Delete
hhmm Open Delete
hoho Open Delete
ilesh Open Delete
itemList2 Open Delete
JJ Open Delete
jk Open Delete
jtujjk Open Delete
khj#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
khj#i21ef661e2506d5d0e513dce166c17d49 Open Delete
khj#i27992875ec4286a24e569b1e015b0473 Open Delete
khj#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
kj Open Delete
kjkjkj Open Delete
kkik Open Delete
kkk#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
kkk#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
klklklkl Open Delete
kpok Open Delete
kpok%C2%B4p Open Delete
lkj Open Delete
llllllllllllllll Open Delete
Lorenz du stinker Open Delete
Lundi Open Delete
medicion 2 Open Delete
Memes Open Delete
miTest Open Delete
moi Open Delete
mon putain de tableau Open Delete
mon tableau Open Delete
mon%20exemple Open Delete
mt Open Delete
myarr Open Delete
mytest Open Delete
n Open Delete
nbnv Open Delete
new Open Delete
new_22 Open Delete
New_test_2017- Open Delete
new%2520test Open Delete
ñlkjlkj Open Delete
nmn Open Delete
nmn#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
nmn#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
nmn#i27992875ec4286a24e569b1e015b0473 Open Delete
nmn#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
nmn#ie025efbbb0738ed01a63b326c174233e Open Delete
nnn Open Delete
nnnnn Open Delete
oı Open Delete
oı Open Delete
oezjfez Open Delete
okilol Open Delete
ordersCollection Open Delete
Ouiiiiiiiiiiii Open Delete
ouiou Open Delete
PC Open Delete
Pepa Open Delete
pepiii Open Delete
perebetes Open Delete
perses#i21ef661e2506d5d0e513dce166c17d49 Open Delete
perses#i5784b3886628c4362594ffa43547edb4 Open Delete
perses#ie025efbbb0738ed01a63b326c174233e Open Delete
pornhub.com Open Delete
pp Open Delete
pppppii Open Delete
pppppii#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
project 1 Open Delete
punto 2 Open Delete
Putin Open Delete
qqq Open Delete
qsdfqsdf Open Delete
quantite --1 Open Delete
qwerqwerqw Open Delete
qwery Open Delete
qwery2 Open Delete
r Open Delete
rar Open Delete
rdfgdf Open Delete
resr Open Delete
RET Open Delete
rfermkferkmfe Open Delete
rrrr#i27992875ec4286a24e569b1e015b0473 Open Delete
rrrr#i5784b3886628c4362594ffa43547edb4 Open Delete
rrrr#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
s Open Delete
sa Open Delete
saASD Open Delete
sadsd Open Delete
sasa Open Delete
scts Open Delete
scyx Open Delete
sdf Open Delete
seeme#i5784b3886628c4362594ffa43547edb4 Open Delete
seqtest Open Delete
sfsdfsd Open Delete
sgdfs Open Delete
some new array Open Delete
sqd Open Delete
sqsq Open Delete
sss Open Delete
ssssssssssssssssssssssssss Open Delete
suck%20my%20cock%20fgts Open Delete
Ta mere la Open Delete
Ta mere la grosse choin Open Delete
Ta%20mere%20la%20grosse%20choin Open Delete
Ta%2520mere%2520la%2520grosse%2520choin Open Delete
Ta%2520mere%2520la%2520grosse%2520choin#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
Ta%2520mere%2520la%2520grosse%2520choin#i21ef661e2506d5d0e513dce166c17d49 Open Delete
Ta%2520mere%2520la%2520grosse%2520choin#i27992875ec4286a24e569b1e015b0473 Open Delete
Ta%2520mere%2520la%2520grosse%2520choin#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
tableau cellule unique Open Delete
terst Open Delete
tesst Open Delete
test array Open Delete
test34'A=0 Open Delete
testarray Open Delete
teste2 Open Delete
testN17 Open Delete
testname Open Delete
testsetse Open Delete
texte Open Delete
Thais Open Delete
the%20test Open Delete
the+test Open Delete
This Open Delete
timo Open Delete
tojo Open Delete
trololo Open Delete
tset Open Delete
tyrtyrtr Open Delete
tyty Open Delete
tzzttz Open Delete
uhj Open Delete
uiu Open Delete
uu Open Delete
Vai%2520que%2520da Open Delete
vcvcvcvcvv Open Delete
vdsvd Open Delete
vh Open Delete
Volta Dilm Open Delete
Volta%20Di Open Delete
Volta%20Dilma%20Fo Open Delete
Volta%2520Dilma%2520Fora% Open Delete
Volta%2520Dilma%2520Fora%2520Temer#i2 Open Delete
Volta%2520Dilma%2520Fora%2520Temer#i21ef661e2506d5d0e513dce166c17d49 Open Delete
Volta%2520Dilma%2520Fora%2520Temer#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
Volta%2520Dilma%2520Fora%2520Temer#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
Volta%2520Dilma%2520Fora%2520Temer#ie025efbbb0738ed01a63b326c174233e Open Delete
vxvxcvxcv Open Delete
werweexample Open Delete
why doctrine on delete not work Open Delete
Woop wooop Open Delete
wxc<wxc Open Delete
xx Open Delete
xxx Open Delete
yut Open Delete
yytutyutyu Open Delete
zizizizizi Open Delete
zzzz1 Open Delete
zzzzzz Open Delete
ролр 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 %}