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
gufc fucvuy Open Delete
name}) }} Open Delete
_ Open Delete
___ ☘ Cela fonctionne ☘ Open Delete
___ ☘ Cela fonctionne à Open Delete
___ Array with Elements ... Click Open to test loading Open Delete
_____ Open Delete
_________coucou Open Delete
_______aaaazz Open Delete
___array___ Open Delete
__bvnvbnvbnvbn Open Delete
__EDLP_7-0_ Open Delete
_Greeting Open Delete
--- Open Delete
---#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
---#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
---#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
---#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
---#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
!! Open Delete
' Open Delete
() Open Delete
&&&&&&&&&&& Open Delete
#1 Open Delete
#69 Open Delete
#72uuuu Open Delete
#timowashere Open Delete
%2391 Open Delete
%25237233333 Open Delete
%25237233333#i21ef661e2506d5d0e513dce166c17d49 Open Delete
%25237233333#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
%25237233333#ie025efbbb0738ed01a63b326c174233e Open Delete
%252372uuuu#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
%252372uuuu#i5784b3886628c4362594ffa43547edb4 Open Delete
%252372uuuu#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
%252372uuuu#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
%252372uuuu#ie025efbbb0738ed01a63b326c174233e Open Delete
%252391 Open Delete
%253F#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
%253F#i21ef661e2506d5d0e513dce166c17d49 Open Delete
%253F#i27992875ec4286a24e569b1e015b0473 Open Delete
%253F#i5784b3886628c4362594ffa43547edb4 Open Delete
%253F#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
%253F#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
%27 Open Delete
%2E Open Delete
%3Csdsads Open Delete
%C3%83%C2%B1lkjlkj 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
00000 Open Delete
000tom Open Delete
1 Open Delete
10 Open Delete
1000-1 Open Delete
11#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
11#i21ef661e2506d5d0e513dce166c17d49 Open Delete
11#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
1111 Open Delete
1111#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
1111#i21ef661e2506d5d0e513dce166c17d49 Open Delete
1111#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
1111#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
11111 Open Delete
11111111111111 Open Delete
1111111111111111111111111111111111#i21ef661e2506d5d0e513dce166c17d49 Open Delete
1111111111111111111111111111111111#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
1111111111111111111111111111111111#ie025efbbb0738ed01a63b326c174233e Open Delete
11111111aaa Open Delete
1111Yapi Open Delete
121113aaaaa Open Delete
122 Open Delete
123123 Open Delete
12345 Open Delete
1Alpha Open Delete
222 Open Delete
2222 example Open Delete
2232323 Open Delete
2323 Open Delete
2344234 Open Delete
3 Open Delete
4545 Open Delete
63 Open Delete
8 Open Delete
88 Open Delete
8888 Open Delete
8899 Open Delete
890 Open Delete
8chan.org Open Delete
993223r23 Open Delete
a Open Delete
☘ Cela fonctionne ☘ Open Delete
a Lorenz Open Delete
a woop woop Open Delete
☘ Cela fonctionne ☘ Open Delete
aa Open Delete
ñlkjlkj Open Delete
ñsfkjaldsa Open Delete
aaa Open Delete
ñlkjlkj Open Delete
aaaaaa Open Delete
aaaaaaaaaaaaaa Open Delete
aaaaaaaaaaaaaa22 Open Delete
AAAAAAAAAAAAAAAAAAAAA Open Delete
тест Open Delete
aaamine Open Delete
aaamine22222#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
aaamine22222#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
aaamine22222#i5784b3886628c4362594ffa43547edb4 Open Delete
aaamine22222#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
aarzarzample Open Delete
aasdasd Open Delete
Abc Open Delete
Abc1 Delete
adasdada Open Delete
adrian Open Delete
adsada Open Delete
adsfdsf Open Delete
alsi Open Delete
any Open Delete
Array Open Delete
array%20new Open Delete
articulo Open Delete
asaasexample Open Delete
asas Open Delete
asda Open Delete
asdaexample Open Delete
asdas Open Delete
asdasd Open Delete
asdasd#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
asdasd#i21ef661e2506d5d0e513dce166c17d49 Open Delete
asdasd#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
asdasdadasd#i1097c8b84b58a65ed6ec7b4f0da3ab67 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
asdf Open Delete
asdfasdfasd8888 Open Delete
asdfg Open Delete
assa Open Delete
AU Open Delete
azerty Open Delete
azerty'A=0 Open Delete
bam Open Delete
bjfhj Open Delete
bjfhj#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
bjfhj#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
bjfhj#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
bjfhj#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
blah Open Delete
blah#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
blah#i21ef661e2506d5d0e513dce166c17d49 Open Delete
blah#i5784b3886628c4362594ffa43547edb4 Open Delete
blah#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
blah#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
caca Open Delete
caracas Open Delete
Caracas222 Open Delete
cccio Open Delete
cdcdc Open Delete
Cela fonctionne Open Delete
Christos Open Delete
Cmucik Open Delete
cnes Open Delete
colombo Open Delete
cool Open Delete
cx<wc Open Delete
cxcxx Open Delete
D#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
D#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
D#i21ef661e2506d5d0e513dce166c17d49 Open Delete
D#i5784b3886628c4362594ffa43547edb4 Open Delete
D#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
D#ie025efbbb0738ed01a63b326c174233e Open Delete
dadd Open Delete
dasf Open Delete
dcdc Open Delete
dd Open Delete
ddd Open Delete
ddddd Open Delete
delete_empty Open Delete
Demo Open Delete
dfa Open Delete
dfa#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
dfa#i21ef661e2506d5d0e513dce166c17d49 Open Delete
dfa#i27992875ec4286a24e569b1e015b0473 Open Delete
dfa#i5784b3886628c4362594ffa43547edb4 Open Delete
dfa#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
dfdfdf Open Delete
dfdsf Open Delete
dfg Open Delete
drgd Open Delete
dsdfgsdfgdf Open Delete
dsf Open Delete
dsfdsfd Open Delete
dsfsdfs Open Delete
dsvfdsfg%5D Open Delete
ejemplo 2017-11-23 Open Delete
eqweqwe Open Delete
erwgfu%C4%B1gj8hl%C4%B1 Open Delete
erwgfuıgj8hlı Open Delete
erwgfuıgj8hlı Open Delete
ewe Open Delete
exadasdas Open Delete
example Open Delete
example exam Open Delete
example Radu Open Delete
example+exam Open Delete
example1 Open Delete
example123#i27992875ec4286a24e569b1e015b0473 Open Delete
example123#i5784b3886628c4362594ffa43547edb4 Open Delete
example123#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
example123#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
example123#ie025efbbb0738ed01a63b326c174233e Open Delete
example2222222 Open Delete
example22222222222222 Open Delete
example33333 Open Delete
exampleasdas Open Delete
exampleasfsafa Open Delete
exampleasfsafasf#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
exampleasfsafasf#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
exampleasfsafasf#i21ef661e2506d5d0e513dce166c17d49 Open Delete
exampleasfsafasf#i5784b3886628c4362594ffa43547edb4 Open Delete
exampleasfsafasf#ie025efbbb0738ed01a63b326c174233e Open Delete
examplefh Open Delete
examplehjkhjk Open Delete
examplejjj Open Delete
examplemmm Open Delete
examplemmmm Open Delete
examplenhnhd Open Delete
exampleqqqq Open Delete
exampleRW Open Delete
examplesadfasfasdf Open Delete
examplesdsd Open Delete
exampleuy Open Delete
exampple Open Delete
eze Open Delete
familly Open Delete
fc Open Delete
Fda Open Delete
fdf Open Delete
fdf#i21ef661e2506d5d0e513dce166c17d49 Open Delete
fdf#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
fdf#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
fdsdf Open Delete
fdsf Open Delete
fgfdgdgdf Open Delete
fgt Open Delete
foo Open Delete
frfrf Open Delete
fsgv Open Delete
fuck%20you Open Delete
gdfg Open Delete
gdfg#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
gdfg#i27992875ec4286a24e569b1e015b0473 Open Delete
gdfg#i5784b3886628c4362594ffa43547edb4 Open Delete
gdfg#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
gdfg#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
gfdgdf Open Delete
gg Open Delete
Ggg Open Delete
ghjk Open Delete
ghjk#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
ghjk#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
ghjk#i5784b3886628c4362594ffa43547edb4 Open Delete
ghjk#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
ghjk#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
ghk Open Delete
Ghy Open Delete
gjkl Open Delete
Group B Open Delete
Group C Open Delete
Group%20B Open Delete
Group%2BC Open Delete
Group%2BC#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
Group%2BC#i21ef661e2506d5d0e513dce166c17d49 Open Delete
Group%2BC#i27992875ec4286a24e569b1e015b0473 Open Delete
Group+C Open Delete
gufc fucvuy dd Open Delete
hahah Open Delete
Hello World ! Open Delete
hellowrld Open Delete
HEYY%2520:D Open Delete
HEYY%2520:D#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
HEYY%2520:D#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
HEYY%2520:D#i27992875ec4286a24e569b1e015b0473 Open Delete
HEYY%2520:D#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
HEYY%2520:D#ie025efbbb0738ed01a63b326c174233e Open Delete
hg Open Delete
hgkjh Open Delete
hh Open Delete
hhh Open Delete
hhmm Open Delete
hi%20bitches Open Delete
hoho Open Delete
hujpizda Open Delete
iii Open Delete
itemList Open Delete
itemList2 Open Delete
j Open Delete
jb Open Delete
jhj Open Delete
jkbhkjh Open Delete
julio Open Delete
kaas Open Delete
kfhk Open Delete
khj#i21ef661e2506d5d0e513dce166c17d49 Open Delete
khj#i27992875ec4286a24e569b1e015b0473 Open Delete
khj#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
khj#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
khj#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
kj Open Delete
kjkjkj Open Delete
kkk Open Delete
kkk#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
kln Open Delete
kmkm Open Delete
kpok Open Delete
kpok´p Open Delete
kpok´p Open Delete
l Open Delete
lj Open Delete
lkk Open Delete
lmklk Open Delete
lol Open Delete
loslos Open Delete
Lundi Open Delete
m Open Delete
mardi Open Delete
Memes Open Delete
mjn Open Delete
mkmkmk Open Delete
mm Open Delete
mmm Open Delete
mon exemple Open Delete
mon tableau Open Delete
mon%20exemple Open Delete
mon%20putain%20de%20tableau Open Delete
msqdgj Open Delete
Mumbojumbo Open Delete
my_array Open Delete
myarr Open Delete
mytest Open Delete
n Open Delete
new test Open Delete
New_test_2017- Open Delete
New_test_2017-03_03 Open Delete
ñlkjlkj Open Delete
nmn#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
nnn Open Delete
Nouveau Open Delete
oı Open Delete
oij Open Delete
ojkj Open Delete
ok Open Delete
okilol Open Delete
ordersCollection Open Delete
Ouiiiiiiiiiiii Open Delete
Ouiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii Open Delete
ouiou Open Delete
pablo Open Delete
pepiii Open Delete
peppo Open Delete
perebetes Open Delete
perses Open Delete
perses#i21ef661e2506d5d0e513dce166c17d49 Open Delete
perses#ie025efbbb0738ed01a63b326c174233e Open Delete
po Open Delete
polo Open Delete
pp Open Delete
pppppii Open Delete
pppppii#ie025efbbb0738ed01a63b326c174233e Open Delete
pppppp Open Delete
Premier element de test Open Delete
Product Open Delete
project%201 Open Delete
qsdfqsdf Open Delete
question2 Open Delete
qwerqwerqw Open Delete
qwery2 Open Delete
r Open Delete
resr Open Delete
RET Open Delete
rewq Open Delete
rr Open Delete
rrr Open Delete
rrrr#i21ef661e2506d5d0e513dce166c17d49 Open Delete
rrrr#i27992875ec4286a24e569b1e015b0473 Open Delete
rrrr#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
rtr Open Delete
RV Open Delete
sadsd Open Delete
samArray Open Delete
scts Open Delete
scyx Open Delete
sd Open Delete
sdczsdzsd Open Delete
sdf Open Delete
SED Open Delete
seeme Open Delete
seeme#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
seeme#i27992875ec4286a24e569b1e015b0473 Open Delete
seeme#i5784b3886628c4362594ffa43547edb4 Open Delete
seeme#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
seeme#ie025efbbb0738ed01a63b326c174233e Open Delete
select Open Delete
seqtest Open Delete
sfdf Open Delete
sfsa Open Delete
sfsdfsd Open Delete
some new array Open Delete
someNewArray Open Delete
someNewArray#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
someNewArray#i27992875ec4286a24e569b1e015b0473 Open Delete
someNewArray#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
someNewArray#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
someNewArray#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
sqd Open Delete
ss Open Delete
ssssssssssssss Open Delete
ssssssssssssssssssssssssss Open Delete
STASI Open Delete
suck my cock fgts Open Delete
suck%20my%20cock%20fgts Open Delete
t11 Open Delete
Ta mere la Open Delete
Ta mere la grosse choin Open Delete
Ta%20mere%20la%20grosse%20tchoin 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#i5784b3886628c4362594ffa43547edb4 Open Delete
Ta%2520mere%2520la%2520grosse%2520choin#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
Ta%2520mere%2520la%2520grosse%2520choin#ie025efbbb0738ed01a63b326c174233e Open Delete
tableau%20cellule%20unique Open Delete
TATA Open Delete
terst Open Delete
tesr Open Delete
TEST Open Delete
test nours Open Delete
Test2 Open Delete
test34'A=0 Open Delete
TEST912 Open Delete
Teste Open Delete
teste2 Open Delete
Tester Open Delete
testname Open Delete
testtest Open Delete
Thais Open Delete
the+test Open Delete
this is an array Open Delete
this%20is%20an%20array Open Delete
tojo Open Delete
tre Open Delete
tyrtyrtr Open Delete
uhj Open Delete
Vai que da Open Delete
Vai%2520que%2520da Open Delete
vcbbc Open Delete
vcvcvcvcvv Open Delete
vdsvd Open Delete
Volta Dilm Open Delete
Volta Dilma Fora Temer Open Delete
Volta%20Di Open Delete
Volta%2520Dilma%2520Fora% Open Delete
Volta%2520Dilma%2520Fora%2520Temer Open Delete
Volta%2520Dilma%2520Fora%2520Temer#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
Volta%2520Dilma%2520Fora%2520Temer#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
Volta%2520Dilma%2520Fora%2520Temer#i2 Open Delete
Volta%2520Dilma%2520Fora%2520Temer#i21ef661e2506d5d0e513dce166c17d49 Open Delete
Volta%2520Dilma%2520Fora%2520Temer#i5784b3886628c4362594ffa43547edb4 Open Delete
Volta%2520Dilma%2520Fora%2520Temer#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
Volta%2520Dilma%2520Fora%2520Temer#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
Volta%2520Dilma%2520Fora%2520Temer#ie025efbbb0738ed01a63b326c174233e Open Delete
Volta+Dilma+Fo Open Delete
VRE Open Delete
w Open Delete
werweexample Open Delete
why doctrine on delete not work Open Delete
why doctrine on delete not work? Open Delete
why%20doctrine%20on%20delete%20not%20work Open Delete
Woop wooop Open Delete
Woop%20wooop Open Delete
wqeqe Open Delete
wsh yannito Open Delete
www Open Delete
wxc<wxc Open Delete
xd Open Delete
xy Open Delete
yfcx Open Delete
yy Open Delete
z Open Delete
zzzz 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 %}