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
___ ☘ Cela fonctionne ☘ Open Delete
_______aaaazz Open Delete
___%20%E2%98%98%20Cela%20fonctionne%20%E2%98%98 Open Delete
___m Open Delete
__bvnvbnvbnvbn Open Delete
__EDLP_7-0_ Open Delete
---#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
---#i21ef661e2506d5d0e513dce166c17d49 Open Delete
---#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
---#ie025efbbb0738ed01a63b326c174233e Open Delete
!!!!sdsdsd Open Delete
' Open Delete
(orphée) Open Delete
(orphée) Open Delete
#456 Open Delete
#69 Open Delete
#72 Open Delete
#72uuuuokokok Open Delete
%237233333 Open Delete
%2391 Open Delete
%25237233333#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
%25237233333#i21ef661e2506d5d0e513dce166c17d49 Open Delete
%25237233333#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
%25237233333#ie025efbbb0738ed01a63b326c174233e Open Delete
%252372uuuu Open Delete
%252372uuuu#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
%252372uuuu#i5784b3886628c4362594ffa43547edb4 Open Delete
%252372uuuu#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
%252372uuuu#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
%252372uuuu#ie025efbbb0738ed01a63b326c174233e Open Delete
%253F#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
%253F#i21ef661e2506d5d0e513dce166c17d49 Open Delete
%253F#i27992875ec4286a24e569b1e015b0473 Open Delete
%253F#i5784b3886628c4362594ffa43547edb4 Open Delete
%253F#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
%253F#ie025efbbb0738ed01a63b326c174233e Open Delete
%27 Open Delete
%2E Open Delete
%3Csdsads Open Delete
%3F Open Delete
%C3%B1lkjlkj Open Delete
%C3%B1sfkjaldsa Open Delete
<?php echo ' i don't like it ' 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
00000 Open Delete
11 Open Delete
11#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
11#i21ef661e2506d5d0e513dce166c17d49 Open Delete
11#i5784b3886628c4362594ffa43547edb4 Open Delete
11#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
11#ie025efbbb0738ed01a63b326c174233e Open Delete
1111#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
1111#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
1111#i27992875ec4286a24e569b1e015b0473 Open Delete
1111#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
1111#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
1111#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
1111#ie025efbbb0738ed01a63b326c174233e Open Delete
11111 Open Delete
1111111111111111111111111111111111 Open Delete
1111111111111111111111111111111111#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
1111111111111111111111111111111111#i5784b3886628c4362594ffa43547edb4 Open Delete
1111111111111111111111111111111111#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
1111111111111111111111111111111111#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
1111111111111111111111111111111111#ie025efbbb0738ed01a63b326c174233e Open Delete
11111111aaa Open Delete
121113 Open Delete
122 Open Delete
123123 Open Delete
12313 Open Delete
1aa Open Delete
2 Open Delete
2222 example Open Delete
2222%2520example Open Delete
2344234 Open Delete
3 Open Delete
32jnni Open Delete
33 Open Delete
454 Open Delete
4545 Open Delete
5 Open Delete
5454 Open Delete
86787 Open Delete
88 Open Delete
8899 Open Delete
8chan.org Open Delete
969 Open Delete
99 Open Delete
993223r23 Open Delete
999 Open Delete
ñsfkjaldsa Open Delete
☘ Cela fonctionne ☘ Open Delete
a2 Open Delete
ñlkjlkj Open Delete
aaa Open Delete
aaaa Open Delete
тест Open Delete
aaamine Open Delete
aaamine22222#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
aaamine22222#i21ef661e2506d5d0e513dce166c17d49 Open Delete
aaamine22222#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
aaamine22222#ie025efbbb0738ed01a63b326c174233e Open Delete
aasdasd Open Delete
adasdada Open Delete
Addresses Open Delete
adrian Open Delete
AlgoSucks Open Delete
alsi Open Delete
any Open Delete
Array Open Delete
array new Open Delete
array%20new Open Delete
array2 Open Delete
arrayGilmry Open Delete
articulo Open Delete
asaasexample Open Delete
asd Open Delete
asda Open Delete
asdaexample Open Delete
asdasd#i27992875ec4286a24e569b1e015b0473 Open Delete
asdasd#i5784b3886628c4362594ffa43547edb4 Open Delete
asdasd#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
asdasdadasd#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
asdasdadasd#i21ef661e2506d5d0e513dce166c17d49 Open Delete
asdasdadasd#i27992875ec4286a24e569b1e015b0473 Open Delete
asdasdadasd#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
asdasdadasd#ie025efbbb0738ed01a63b326c174233e Open Delete
asdasdasd Open Delete
asdfasdfasd Open Delete
asdfg Open Delete
asds Open Delete
azerty Open Delete
b Open Delete
balala Open Delete
bbb Open Delete
bbbbbbbbbbb Open Delete
bjfhj#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
bjfhj#i27992875ec4286a24e569b1e015b0473 Open Delete
bjfhj#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
bjfhj#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
bjfhj#ie025efbbb0738ed01a63b326c174233e Open Delete
bla Open Delete
blah#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
blah#i27992875ec4286a24e569b1e015b0473 Open Delete
blah#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
Bra Open Delete
caracas Open Delete
ciao Open Delete
Cmucik Open Delete
colombo Open Delete
cool Open Delete
cups Open Delete
cx Open Delete
cx<wc Open Delete
dasd Open Delete
dd Open Delete
ddazdaz Open Delete
ddd Open Delete
ddddd Open Delete
dddddddddddddddddddddd Open Delete
defrsdf Open Delete
delete_empty Open Delete
dfa Open Delete
dfa#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
dfa#i21ef661e2506d5d0e513dce166c17d49 Open Delete
dfa#i5784b3886628c4362594ffa43547edb4 Open Delete
dfa#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
dfa#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
dfa#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
dfa#ie025efbbb0738ed01a63b326c174233e Open Delete
dfg Open Delete
dfsdf Open Delete
dfvds Open Delete
dgh Open Delete
Doom Open Delete
drgd Open Delete
dsadsadd Open Delete
dsf Open Delete
e Open Delete
ejemplo 2 Open Delete
erwgfuıgj8hlı Open Delete
ewe Open Delete
exam Open Delete
exampldfdfe Open Delete
example Delete
example exam Open Delete
example Radu Open Delete
example+exam Open Delete
example123#i27992875ec4286a24e569b1e015b0473 Open Delete
example123#i5784b3886628c4362594ffa43547edb4 Open Delete
example123#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
example123#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
example2222222 Open Delete
example22222222222222 Open Delete
example33333 Open Delete
example4 Open Delete
exampleasfsafa Open Delete
exampleasfsafasf#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
exampleasfsafasf#i5784b3886628c4362594ffa43547edb4 Open Delete
exampleasfsafasf#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
exampleasfsafasf#ie025efbbb0738ed01a63b326c174233e Open Delete
exampledds Open Delete
exampledsdsdda Open Delete
exampledsdsddasds,sad,a,d,as,d,asd,asd Open Delete
examplee Open Delete
exampleede Open Delete
examplefffffffffffff Open Delete
examplefsd Open Delete
examplehjkhjk Open Delete
examplemmm Open Delete
examplemmmm Open Delete
exampleRW Open Delete
examplesdddd Open Delete
examplesdsd Open Delete
exampless Open Delete
examplevbnvnhv Open Delete
Existing arr Open Delete
eze Open Delete
fasdfasf Open Delete
fc Open Delete
Fda Open Delete
fdf Open Delete
fdf#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
fdf#i21ef661e2506d5d0e513dce166c17d49 Open Delete
fdf#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
fdf#ie025efbbb0738ed01a63b326c174233e Open Delete
fdgfdgfdgfdgfd Open Delete
fdsf Open Delete
fe Open Delete
fff Open Delete
ffff Open Delete
fgdfgfg Open Delete
fgfdgdgdf Open Delete
fgfdgfdgdg Open Delete
fgt Open Delete
foo Open Delete
frfrf Open Delete
fsdfsdf Open Delete
fsgv Open Delete
fuck you Open Delete
fuck%20you Open Delete
gdfg#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
gdfg#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
gege Open Delete
gfgddgfd Open Delete
ggg Open Delete
ghione Open Delete
ghjk#i5784b3886628c4362594ffa43547edb4 Open Delete
ghjk#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
Group C Open Delete
Group%2BC Open Delete
Group%2BC#i21ef661e2506d5d0e513dce166c17d49 Open Delete
Group%2BC#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
gtgt Open Delete
hahah Open Delete
Hallo Open Delete
hello Open Delete
Hello World Open Delete
Hello World ! Open Delete
Hello%20World%20! Open Delete
hellowrld Open Delete
HEYY%20:D Open Delete
HEYY%2520:D Open Delete
HEYY%2520:D#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
HEYY%2520:D#i21ef661e2506d5d0e513dce166c17d49 Open Delete
HEYY%2520:D#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
HEYY%2520:D#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
hg Open Delete
hgfh Open Delete
hgkjh Open Delete
hh Open Delete
hhh Open Delete
hi bitches Open Delete
hi%20bitches Open Delete
hjvhj Open Delete
ho Open Delete
hoho Open Delete
htt Open Delete
http Open Delete
hujpizda Open Delete
i Open Delete
iii Open Delete
ismail Open Delete
itemList Open Delete
itemList2 Open Delete
iujjj Open Delete
iuy Open Delete
iziokisio Open Delete
jghjghjgj Open Delete
jhgfgh Open Delete
jhkl Open Delete
JJ Open Delete
jk Open Delete
jkbhkjh Open Delete
jtujjk Open Delete
kfhk Open Delete
khj#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
khj#i27992875ec4286a24e569b1e015b0473 Open Delete
khj#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
khj#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
kiki Open Delete
kjh Open Delete
kjkjkj Open Delete
kk Open Delete
kkk Open Delete
kkk#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
kkk#i21ef661e2506d5d0e513dce166c17d49 Open Delete
kkk#i27992875ec4286a24e569b1e015b0473 Open Delete
kkk#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
klk Open Delete
klklklkl Open Delete
kpok´p Open Delete
kpok´p Open Delete
lel Open Delete
lkjlkj Open Delete
lol Open Delete
Lorenz du Open Delete
loslos Open Delete
m Open Delete
Marcin Open Delete
miTest Open Delete
mmm Open Delete
moi Open Delete
moj Open Delete
mon tableau Open Delete
mon%20tableau Open Delete
mp Open Delete
msqdgj Open Delete
Mumbojumbo Open Delete
myarr Open Delete
n Open Delete
name Open Delete
Names Open Delete
тест Open Delete
New Array Open Delete
new%20test Open Delete
nmn Open Delete
nmn#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
nmn#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
nmn#i21ef661e2506d5d0e513dce166c17d49 Open Delete
nmn#i27992875ec4286a24e569b1e015b0473 Open Delete
nmn#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
nmn#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
nmn#ie025efbbb0738ed01a63b326c174233e Open Delete
nnn Open Delete
Nouveau Open Delete
o Open Delete
oı Open Delete
oı Open Delete
oezjfez Open Delete
Open Delete
olaboga Open Delete
Ouiiiiiiiiiiii Open Delete
Ouiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii Open Delete
Ouiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii Open Delete
Ouiiiiiiiiiiiiiiiiiiiiiiiilul Open Delete
ouiou Open Delete
pablo Open Delete
pepiii Open Delete
perses#i21ef661e2506d5d0e513dce166c17d49 Open Delete
perses#i5784b3886628c4362594ffa43547edb4 Open Delete
perses#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
perses#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
perses#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
po Open Delete
polo Open Delete
pppppii#i27992875ec4286a24e569b1e015b0473 Open Delete
pppppii#i5784b3886628c4362594ffa43547edb4 Open Delete
pppppii#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
product Open Delete
project 1 Open Delete
Putin Open Delete
qsd Open Delete
quantite --1 Open Delete
quantite%20--1 Open Delete
qwe Open Delete
qweqw Open Delete
qwery Open Delete
qwery2 Open Delete
r Open Delete
rdfgdf Open Delete
Recipe Open Delete
rrgf Open Delete
rrrr Open Delete
rrrr#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
rrrr#i21ef661e2506d5d0e513dce166c17d49 Open Delete
rrrr#i27992875ec4286a24e569b1e015b0473 Open Delete
rrrr#i5784b3886628c4362594ffa43547edb4 Open Delete
rrrr#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
rrrr#ie025efbbb0738ed01a63b326c174233e Open Delete
rtr Open Delete
RV Open Delete
s Open Delete
sa Open Delete
sad Open Delete
sadsd Open Delete
salut les gens Open Delete
sami Open Delete
sample Open Delete
samples Open Delete
sasa Open Delete
scts Open Delete
scyx Open Delete
sdf Open Delete
sdfsdf Open Delete
seeme#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
seeme#i21ef661e2506d5d0e513dce166c17d49 Open Delete
seeme#i5784b3886628c4362594ffa43547edb4 Open Delete
seeme#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
select Open Delete
sfdf Open Delete
sfsa Open Delete
sfsdfsd Open Delete
sgdfs Open Delete
some new array Open Delete
someNewArray#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
someNewArray#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
someNewArray#i27992875ec4286a24e569b1e015b0473 Open Delete
someNewArray#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
sss Open Delete
ssss Open Delete
ssssssssssssss Open Delete
STASI Open Delete
Stringkey Open Delete
suck my co Open Delete
t Open Delete
Ta mere la grosse tchoin Open Delete
Ta%20mere%20la%20grosse%20choin 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
Ta%2520mere%2520la%2520grosse%2520choin#ie025efbbb0738ed01a63b326c174233e Open Delete
tableau cellule unique Open Delete
tableau%20cellule%20unique Open Delete
TATA Open Delete
terst Open Delete
tes Open Delete
tesst Open Delete
Test Open Delete
Test2 Open Delete
test22 Open Delete
test34 Open Delete
TESTEN Open Delete
testing Open Delete
testN17 Open Delete
testname Open Delete
testsetse Open Delete
texte Open Delete
the test Open Delete
the+test Open Delete
this is an Open Delete
this is an array Open Delete
toto Open Delete
totototototo Open Delete
tttttz Open Delete
uhj Open Delete
uiu Open Delete
undefined Open Delete
uuu Open Delete
Vai%20que%20da Open Delete
Volta%2 Open Delete
Volta%20Di Open Delete
Volta%20Dilma%20Fora% Open Delete
Volta%2520Dilma%2520Fora% Open Delete
Volta%2520Dilma%2520Fora%2520Temer Open Delete
Volta%2520Dilma%2520Fora%2520Temer#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
Volta%2520Dilma%2520Fora%2520Temer#i21ef661e2506d5d0e513dce16 Open Delete
Volta%2520Dilma%2520Fora%2520Temer#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
Volta%2520Dilma%2520Fora%2520Temer#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
Volta+Dilma+Fo Open Delete
Volta+Dilma+Fora+Temer Open Delete
vxvxcvxcv Open Delete
werweexample Open Delete
why doctrine on delete not work Open Delete
Woop wooop Open Delete
Woop% Open Delete
wqeqe Open Delete
ww Open Delete
www Open Delete
wxc<wxc Open Delete
xcxcxcx Open Delete
xxx Open Delete
You Open Delete
yut Open Delete
yy Open Delete
yytutyutyu Open Delete
yyyyyyyyyyyyyy Open Delete
z Open Delete
zizizizizi Open Delete
zzz Open Delete
zzzz Open Delete
zzzz1 Open Delete
zzzzzz Open Delete
☘ Cela fonctionne ☘ 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 %}