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
__bvnvbnvbnvbn Open Delete
--- Open Delete
---#i21ef661e2506d5d0e513dce166c17d49 Open Delete
---#i5784b3886628c4362594ffa43547edb4 Open Delete
---#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
---#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
---#ie025efbbb0738ed01a63b326c174233e Open Delete
!! Open Delete
!!!!sdsdsd Open Delete
? Open Delete
. Open Delete
(orphée) Open Delete
&&&&&&&&&&& Open Delete
#1 Open Delete
#456 Open Delete
#69 Open Delete
#72uuuuokokok Open Delete
#91 Open Delete
#AlgoSucks Open Delete
#timowashere Open Delete
%231 Open Delete
%2372 Open Delete
%237233333 Open Delete
%2391 Open Delete
%25237233333#i27992875ec4286a24e569b1e015b0473 Open Delete
%25237233333#ie025efbbb0738ed01a63b326c174233e Open Delete
%252372uuuu Open Delete
%253F#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
%253F#i5784b3886628c4362594ffa43547edb4 Open Delete
%253F#ie025efbbb0738ed01a63b326c174233e Open Delete
%27 Open Delete
%28orph%C3%A9e%29 Open Delete
%3F Open Delete
%C3%B1lkjlkj Open Delete
%C3%B1sfkjaldsa Open Delete
< 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
~~~ Open Delete
00000 Open Delete
000tom Open Delete
1 Open Delete
10 Open Delete
1000-1 Open Delete
11#i21ef661e2506d5d0e513dce166c17d49 Open Delete
11#i27992875ec4286a24e569b1e015b0473 Open Delete
11#i5784b3886628c4362594ffa43547edb4 Open Delete
11#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
1111 Open Delete
1111#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
1111#i27992875ec4286a24e569b1e015b0473 Open Delete
1111#i5784b3886628c4362594ffa43547edb4 Open Delete
1111#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
1111#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
11111111111111 Open Delete
1111111111111111111111111111111111#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
1111111111111111111111111111111111#i21ef661e2506d5d0e513dce166c17d49 Open Delete
1111111111111111111111111111111111#i5784b3886628c4362594ffa43547edb4 Open Delete
1111111111111111111111111111111111#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
1111111111111111111111111111111111#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
11111111aaa Open Delete
1111Yapi Open Delete
12 Open Delete
121113aaaaa Open Delete
1231 Open Delete
123123 Delete
12345 Open Delete
15 Open Delete
1aa Open Delete
1Alpha Open Delete
2222 example Open Delete
2222%20example Open Delete
222222 Open Delete
2232323 Open Delete
2344234 Open Delete
32 Open Delete
4545 Open Delete
456 Open Delete
5 Open Delete
5454 Open Delete
7 Open Delete
78 Open Delete
888 Open Delete
8888 Open Delete
8899 Open Delete
890 Open Delete
8chan.org Open Delete
969 Open Delete
99 Open Delete
999 Open Delete
a Open Delete
a woop woop Open Delete
ñlkjlkj Open Delete
ñsf Open Delete
ñsfkjaldsa Open Delete
☘ Cela fonctionne ☘ Open Delete
A1 Open Delete
a2 Open Delete
aa Open Delete
ñlkjlkj Open Delete
aaa Open Delete
ñlkjlkj Open Delete
aaaaa Open Delete
aaaaaaa Open Delete
aaaaaaaaaaaaaa22 Open Delete
AAAAAAAAAAAAAAAAAAAAA Open Delete
aaaaaaaaaaaaaaaaaaaaaaaaaa Open Delete
aaamine Open Delete
aaamine22222 Open Delete
aaamine22222#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
aaamine22222#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
aaamine22222#i21ef661e2506d5d0e513dce166c17d49 Open Delete
aaamine22222#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
aarzarzample Open Delete
aasdasd Open Delete
Abc1 Open Delete
adasdada Open Delete
adfadf Open Delete
adrian Open Delete
adsfdsf Open Delete
Alpha Open Delete
alsi Open Delete
array new Open Delete
Array2 Open Delete
arrayGilmry Open Delete
articulo Open Delete
as Open Delete
asaasexample Open Delete
asdas Open Delete
asdasd#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
asdasd#i21ef661e2506d5d0e513dce166c17d49 Open Delete
asdasd#i27992875ec4286a24e569b1e015b0473 Open Delete
asdasd#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
asdasd#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
asdasd#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
asdasdadasd Open Delete
asdasdadasd#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
asdasdadasd#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
asdasdadasd#i27992875ec4286a24e569b1e015b0473 Open Delete
asdasdadasd#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
asdasdasd Open Delete
asdasddadsd Open Delete
asdf Open Delete
asdfg Open Delete
assa Open Delete
az Open Delete
Aze Open Delete
azerty Open Delete
balala Open Delete
bam Open Delete
bbb Open Delete
bbbbbbbbbbbbbbbb Open Delete
bc Open Delete
bcvbcvb Open Delete
bdfdfdfdf Open Delete
bite Open Delete
bjfhj#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
bjfhj#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
bjfhj#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
bjfhj#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
bla Open Delete
blah Open Delete
blah#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
blah#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
blah#i27992875ec4286a24e569b1e015b0473 Open Delete
blah#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
blah#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
blah#ie025efbbb0738ed01a63b326c174233e Open Delete
born Open Delete
Bra Open Delete
bxvbvx Open Delete
caca Open Delete
caracas Open Delete
Caracas222666 Open Delete
cccio Open Delete
cdcdc Open Delete
checks Open Delete
Christos Open Delete
ciao Open Delete
Cmucik Open Delete
cnes Open Delete
colombo Open Delete
cool Open Delete
crap Open Delete
cups Open Delete
cx%3Cwc Open Delete
cx<wc Open Delete
cx<wc'A=0 Open Delete
D happy 2018 Open Delete
D#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
D#i27992875ec4286a24e569b1e015b0473 Open Delete
dadd Open Delete
dasd Open Delete
dasdsa Open Delete
dasdsad Open Delete
dasf Open Delete
dcdc Open Delete
ddd Open Delete
defrsdf Open Delete
delete_empty Open Delete
demo Open Delete
dfa#i21ef661e2506d5d0e513dce166c17d49 Open Delete
dfa#i5784b3886628c4362594ffa43547edb4 Open Delete
dfa#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
dfa#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
dfa#ie025efbbb0738ed01a63b326c174233e Open Delete
dfdfdf Open Delete
dfdsf Open Delete
dfg Open Delete
dfsdf Open Delete
dftydfty Open Delete
dfvds Open Delete
dfzre Open Delete
dgh Open Delete
dghdfgdfgd Open Delete
dsds Open Delete
dsf Open Delete
ejemplo 2017-11-23 Open Delete
erwgfu%C4%B1gj8hl%C4%B1 Open Delete
erwgfuıgj8hlı Open Delete
erwgfuıgj Open Delete
exadasdas Open Delete
example Open Delete
example exam Open Delete
example Radu Open Delete
example%20exam Open Delete
example+exam Open Delete
example123 Open Delete
example123#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
example123#i21ef661e2506d5d0e513dce166c17d49 Open Delete
example3243423 Open Delete
example33333 Open Delete
exampleasfsafa Open Delete
exampleasfsafasf Open Delete
exampleasfsafasf#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
exampleasfsafasf#i27992875ec4286a24e569b1e015b0473 Open Delete
exampleasfsafasf#i5784b3886628c4362594ffa43547edb4 Open Delete
exampleasfsafasf#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
exampleasfsafasf#ie025efbbb0738ed01a63b326c174233e Open Delete
exampled Open Delete
exampledds Open Delete
examplee Open Delete
exampleede Open Delete
examplefsd Open Delete
examplehfghfhfgfg Open Delete
examplehjkhjk Open Delete
examplejjj Open Delete
examplemmmm Open Delete
examplenhnhd Open Delete
exampleqqqq Open Delete
examplesa Open Delete
examplesadfasfasdf Open Delete
exampletes Open Delete
exampleu Open Delete
exampleuy Open Delete
examplew Open Delete
examqdqsple Open Delete
Existing arr Open Delete
exkiample Open Delete
familly Open Delete
fasdfasf Open Delete
fat Open Delete
fc Open Delete
fdf Open Delete
fdf#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
fdf#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
fdf#i21ef661e2506d5d0e513dce166c17d49 Open Delete
fdf#i27992875ec4286a24e569b1e015b0473 Open Delete
fdf#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
fdf#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
fdf#ie025efbbb0738ed01a63b326c174233e Open Delete
fdg Open Delete
fdgfdgfdgfdgfd Open Delete
fdsdf Open Delete
fdsf Open Delete
fdsfds Open Delete
fe Open Delete
ff d Open Delete
ffff Open Delete
ffsss Open Delete
fg Open Delete
fgdfg Open Delete
fgfdgdgdf Open Delete
fgfdgfdgdg Open Delete
fghjk, Open Delete
fgt Open Delete
frfrf Open Delete
Fruits Open Delete
fsda Open Delete
fsdfsdf Open Delete
fsgv Open Delete
fuck%20you Open Delete
gdfg Open Delete
gdfg#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
gdfg#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
gdfg#i27992875ec4286a24e569b1e015b0473 Open Delete
gdfg#i5784b3886628c4362594ffa43547edb4 Open Delete
gege Open Delete
geht nicht Open Delete
gfgddgfd Open Delete
gg Open Delete
gg'A=0 Open Delete
GGI Open Delete
ghione Open Delete
ghjk#i21ef661e2506d5d0e513dce166c17d49 Open Delete
ghjk#i5784b3886628c4362594ffa43547edb4 Open Delete
ghjk#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
ghk Open Delete
Ghy Open Delete
gjkl Open Delete
Group C Open Delete
Group%2BC#i21ef661e2506d5d0e513dce166c17d49 Open Delete
Group%2BC#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
Group%2BC#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
Group%2BC#ie025efbbb0738ed01a63b326c174233e Open Delete
Group+C Open Delete
gufc fucvuy Open Delete
gufc fucvuy dd Open Delete
hahah Open Delete
Hallo Open Delete
hello Open Delete
Hello world Open Delete
Hello%20World%20! Open Delete
HEYY :D Open Delete
HEYY%2520:D#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
HEYY%2520:D#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
HEYY%2520:D#i21ef661e2506d5d0e513dce166c17d49 Open Delete
hg Open Delete
hgfh Open Delete
hhh Open Delete
hi bitches Open Delete
hjvhj Open Delete
ho Open Delete
hoho Open Delete
http Open Delete
hujpizda Open Delete
hyhy Open Delete
i Open Delete
iii Open Delete
iooi Open Delete
ismail Open Delete
itemList Open Delete
itemList2 Open Delete
iziokisio Open Delete
j Open Delete
jj Open Delete
jk Open Delete
jkbhkjh Open Delete
jtujjk Open Delete
kaas Open Delete
kappa Open Delete
khj#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
khj#i27992875ec4286a24e569b1e015b0473 Open Delete
khj#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
khj#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
khj#ie025efbbb0738ed01a63b326c174233e Open Delete
kiki Open Delete
kj Open Delete
kjh Open Delete
kjkjkj Open Delete
kk Open Delete
kkik Open Delete
kkk#i21ef661e2506d5d0e513dce166c17d49 Open Delete
kkk#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
kln Open Delete
kmkm Open Delete
kpok Open Delete
kpok%C2%B4p Open Delete
kpok´p Open Delete
lel Open Delete
lj Open Delete
lkj Open Delete
lkjlkj Open Delete
ll Open Delete
lmklk Open Delete
lolo Open Delete
Lorenz du stinker Open Delete
mardi Open Delete
mec Open Delete
Memes Open Delete
miTest Open Delete
mkmkmk Open Delete
mm Open Delete
mmm Open Delete
moj Open Delete
mon exemple Open Delete
mon putain de tableau Open Delete
mon%20putain%20de%20tableau Open Delete
mon%20tableau Open Delete
mp Open Delete
mt Open Delete
my_array Open Delete
myarr Open Delete
Names Open Delete
new Open Delete
New Array Open Delete
new_22 Open Delete
New_test_2017- Open Delete
ñlkjlkj Open Delete
nmn Open Delete
nmn#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
nmn#i27992875ec4286a24e569b1e015b0473 Open Delete
nmn#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
nmn#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
nmn#ie025efbbb0738ed01a63b326c174233e Open Delete
nnn Open Delete
Nouveau Open Delete
o Open Delete
o%C4%B1 Open Delete
oı Open Delete
oezjfez Open Delete
oij Open Delete
ok Open Delete
ordersCollection Open Delete
Ouiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii Open Delete
Ouiiiiiiiiiiiiiiiiiiiiiiiilul Open Delete
ouiou Open Delete
pablo Open Delete
PC Open Delete
Pepa Open Delete
peppo Open Delete
perebetes Open Delete
perses Open Delete
perses#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
perses#i21ef661e2506d5d0e513dce166c17d49 Open Delete
perses#i5784b3886628c4362594ffa43547edb4 Open Delete
po Open Delete
pp Open Delete
pppppii Open Delete
pppppii#i21ef661e2506d5d0e513dce166c17d49 Open Delete
pppppii#i27992875ec4286a24e569b1e015b0473 Open Delete
pppppii#i5784b3886628c4362594ffa43547edb4 Open Delete
pppppii#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
pppppii#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
Premier element de test Open Delete
project 1 Open Delete
punto 2 Open Delete
Putin Open Delete
qqq Open Delete
qsd Open Delete
quantite%20--1 Open Delete
question2 Open Delete
qweqw Open Delete
qwerqwerqw Open Delete
qwery2 Open Delete
r Open Delete
Recipe Open Delete
rfermkferkmfe Open Delete
rr Open Delete
rrr Open Delete
rrrr Open Delete
rrrr#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
rrrr#i21ef661e2506d5d0e513dce166c17d49 Open Delete
rrrr#i27992875ec4286a24e569b1e015b0473 Open Delete
rrrr#i5784b3886628c4362594ffa43547edb4 Open Delete
rtr Open Delete
RV Open Delete
s Open Delete
sa Open Delete
saassa Open Delete
sadsd Open Delete
salut les gens Open Delete
sam Open Delete
sample Open Delete
scts Open Delete
sdg Open Delete
sdsd Open Delete
seeme Open Delete
seeme#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
seeme#ie025efbbb0738ed01a63b326c174233e Open Delete
select Open Delete
seqtest Open Delete
sfdf Open Delete
sfsdfsd Open Delete
someNewArray#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
someNewArray#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
someNewArray#i5784b3886628c4362594ffa43547edb4 Open Delete
someNewArray#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
someNewArray#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
someNewArray#ie025efbbb0738ed01a63b326c174233e Open Delete
sqsq Open Delete
ss Open Delete
ssss Open Delete
ssssssssssssss Open Delete
Starojitski Open Delete
Stringkey Open Delete
suck my co Open Delete
t Open Delete
t11 Open Delete
Ta mere la grosse tchoin Open Delete
Ta%20mere%20la%20grosse%20tchoin Open Delete
Ta%2520mere%2520la%2520grosse%2520choin#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
Ta%2520mere%2520la%2520grosse%2520choin#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
Ta%2520mere%2520la%2520grosse%2520choin#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
Telous Open Delete
tesss Open Delete
test name Open Delete
test nours Open Delete
test--1 Open Delete
test34'A=0 Open Delete
teste Open Delete
teste2 Open Delete
TESTEN Open Delete
Tester Open Delete
testing Open Delete
testN17 Open Delete
testname Open Delete
testsetse Open Delete
testtest Open Delete
tesy Open Delete
Teszt Open Delete
tet Open Delete
the test Open Delete
the+test Open Delete
This Open Delete
timo Open Delete
toto Open Delete
tre Open Delete
tryy5 Open Delete
tset Open Delete
ttt Open Delete
tutu Open Delete
tyrtyrtr Open Delete
tyrtyrtrhgfhgfhg Open Delete
tyty Open Delete
ugghutugituiutu Open Delete
ui Open Delete
ukh Open Delete
undefined Open Delete
uu Open Delete
uuu Open Delete
uytuuyt Open Delete
Vai%2520que%2520da Open Delete
vcvcvcvcvv Open Delete
vdsvd Open Delete
vh Open Delete
Volta Dilma Fo Open Delete
Volta%2 Open Delete
Volta%20Dilma%20Fora%20Temer Open Delete
Volta%2520Dilma%2520Fo Open Delete
Volta%2520Dilma%2520Fora%2520Temer#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
Volta%2520Dilma%2520Fora%2520Temer#i2 Open Delete
Volta%2520Dilma%2520Fora%2520Temer#i21ef661e2506d5d0e513dce16 Open Delete
Volta%2520Dilma%2520Fora%2520Temer#i21ef661e2506d5d0e513dce166c17d49 Open Delete
Volta%2520Dilma%2520Fora%2520Temer#i27992875ec4286a24e569b1e015b0473 Open Delete
Volta%2520Dilma%2520Fora%2520Temer#i5784b3886628c4362594ffa43547edb4 Open Delete
Volta%2520Dilma%2520Fora%2520Temer#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
Volta%2520Dilma%2520Fora%2520Temer#ie025efbbb0738ed01a63b326c174233e Open Delete
Volta+Dilma+Fo Open Delete
VRE Open Delete
vv Open Delete
vvvvvvvvvvvvvvv Open Delete
vxvxcvxcv Open Delete
w Open Delete
werweexample Open Delete
why doctrine on delete not work? Open Delete
why%20doctrine%20on%20delete%20not%20work Open Delete
Woop%20wooop Open Delete
wqewqeqwewewq Open Delete
wsh yannito Open Delete
wxc%3Cwxc Open Delete
wxc<wxc Open Delete
xcxcxcx Open Delete
xd Open Delete
xxx Open Delete
xy Open Delete
yfcx Open Delete
yut Open Delete
yytutyutyu Open Delete
zdzd Open Delete
zizizizizi Open Delete
zzz Open Delete
zzzz1 Open Delete
тест 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 %}