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
_____ Open Delete
___%20%E2%98%98%20Cela%20fonctionne%20%E2%98%98 Open Delete
___m Open Delete
_Greeting, :D happy 2018 Open Delete
---#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
---#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
---#i21ef661e2506d5d0e513dce166c17d49 Open Delete
---#i27992875ec4286a24e569b1e015b0473 Open Delete
---#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
---#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
---#ie025efbbb0738ed01a63b326c174233e Open Delete
!!!!sdsdsd Open Delete
' Open Delete
#7233333 Open Delete
%237233333 Open Delete
%25237233333#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
%25237233333#i21ef661e2506d5d0e513dce166c17d49 Open Delete
%25237233333#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
%25237233333#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
%25237233333#ie025efbbb0738ed01a63b326c174233e Open Delete
%252372uuuu#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
%252372uuuu#i21ef661e2506d5d0e513dce166c17d49 Open Delete
%252372uuuu#i27992875ec4286a24e569b1e015b0473 Open Delete
%252372uuuu#i5784b3886628c4362594ffa43547edb4 Open Delete
%252372uuuu#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
%252372uuuu#ic3ee8978c60737ab5d058b5a3f6a1b09 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#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
%253F#ie025efbbb0738ed01a63b326c174233e Open Delete
%2E Open Delete
%3Csdsads Open Delete
%C3%83%C2%B1lkjlkj Open Delete
%C3%B1lkjlkj 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
10 Open Delete
11#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
11#i21ef661e2506d5d0e513dce166c17d49 Open Delete
11#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
1111#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
1111#i27992875ec4286a24e569b1e015b0473 Open Delete
1111#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
1111#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
1111#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
11111 Open Delete
1111111111111111111111111111111111#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
1111111111111111111111111111111111#i21ef661e2506d5d0e513dce166c17d49 Open Delete
1111111111111111111111111111111111#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
1111111111111111111111111111111111#ie025efbbb0738ed01a63b326c174233e Open Delete
12 Open Delete
121113 Open Delete
121113aaaaa Open Delete
1231 Open Delete
1aa Open Delete
2222 example Open Delete
2222%2520example Open Delete
3 Open Delete
32jnni Open Delete
454 Open Delete
5454 Open Delete
8888 Open Delete
890 Open Delete
8chan.org Open Delete
99 Open Delete
☘ Cela fonctionne ☘ Open Delete
a woop woop Open Delete
ñsfkjaldsa Open Delete
☘ Cela fonctionne ☘ Open Delete
A1 Open Delete
a2 Open Delete
ñlkjlkj Open Delete
ñsfkjaldsa Open Delete
aaa Open Delete
ñsfkjaldsa Open Delete
aaaaaaa Open Delete
aaamine22222 Open Delete
aaamine22222#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
aaamine22222#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
aaamine22222#i21ef661e2506d5d0e513dce166c17d49 Open Delete
aaamine22222#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
aaamine22222#ie025efbbb0738ed01a63b326c174233e Open Delete
Abc Open Delete
adrian Open Delete
adsfdsf Open Delete
Array Open Delete
array%20new Open Delete
arrayGilmry Open Delete
asaasexample Open Delete
asd Open Delete
asda Open Delete
asdas Open Delete
asdasd#i27992875ec4286a24e569b1e015b0473 Open Delete
asdasd#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
asdasdadasd#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
asdasdadasd#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
asdasdadasd#i21ef661e2506d5d0e513dce166c17d49 Open Delete
asdasdadasd#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
asdasdadasd#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
asdasdadasd#ie025efbbb0738ed01a63b326c174233e Open Delete
asdasdasd Open Delete
asdf Open Delete
asdfasdfasd8888 Open Delete
asds Open Delete
balala Open Delete
bam Open Delete
bbbbbbbbbbb Open Delete
bcvbcvb Open Delete
bjfhj#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
bjfhj#i27992875ec4286a24e569b1e015b0473 Open Delete
bjfhj#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
bjfhj#ie025efbbb0738ed01a63b326c174233e Open Delete
bla Open Delete
blah Open Delete
blah#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
blah#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
blah#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
blah#ie025efbbb0738ed01a63b326c174233e Open Delete
Bra Open Delete
bxvbvx Open Delete
caca Open Delete
cccio Open Delete
checks Open Delete
ciao Open Delete
colombo Open Delete
cups Open Delete
cx Open Delete
dadd Open Delete
das Open Delete
ddazdaz Open Delete
dddd Open Delete
defrsdf Open Delete
dfa#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
dfa#i21ef661e2506d5d0e513dce166c17d49 Open Delete
dfa#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
dfa#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
dfa#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
dfdt Open Delete
dfg Open Delete
dfvds Open Delete
dgh Open Delete
dghdfgdfgd Open Delete
drgd Open Delete
dsadsadd Open Delete
dsdfgsdfgdf Open Delete
dsf Open Delete
dsfsdfs Open Delete
dsvfdsfg%5D Open Delete
ee Open Delete
erwgfu%C4%B1gj8hl%C4%B1 Open Delete
erwgfuıgj8hlı Open Delete
erwgfuıgj8hlı Open Delete
exadasdas Open Delete
example Delete
example exam Open Delete
example Radu Open Delete
example123#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
example123#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
example123#i21ef661e2506d5d0e513dce166c17d49 Open Delete
example123#i5784b3886628c4362594ffa43547edb4 Open Delete
example2 Open Delete
example22222222222222 Open Delete
example3243423 Open Delete
exampleasfsafasf#i5784b3886628c4362594ffa43547edb4 Open Delete
exampledds Open Delete
exampledsdsdd Open Delete
exampledsdsddasds,sad,a,d,as,d,asd,asd Open Delete
examplee Open Delete
exampleeeeeeeeeeeee Open Delete
examplefffffffffffff Open Delete
examplehjkhjk Open Delete
examplemmm Open Delete
exampleRW Open Delete
exampleRW2 Open Delete
examplesa Open Delete
examplesdf Open Delete
examplew Open Delete
Existing arrays: Open Delete
eze Open Delete
fc Open Delete
fdf Open Delete
fdf#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
fdf#i21ef661e2506d5d0e513dce166c17d49 Open Delete
fdf#i27992875ec4286a24e569b1e015b0473 Open Delete
fdf#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
fdf#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
fdsf Open Delete
fe Open Delete
ff Open Delete
ff d Open Delete
fff Open Delete
ffsss Open Delete
fgt Open Delete
foo Open Delete
Fora Bolsonaro Open Delete
frfrf Open Delete
Fruits Open Delete
fsda Open Delete
fsdfsdf Open Delete
fuck you Open Delete
gbfgbf Open Delete
gdfg#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
gdfg#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
gdfg#i21ef661e2506d5d0e513dce166c17d49 Open Delete
gdfg#i27992875ec4286a24e569b1e015b0473 Open Delete
gdfg#i5784b3886628c4362594ffa43547edb4 Open Delete
gdfg#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
gege Open Delete
gfgddgfd Open Delete
ggg Open Delete
ghjk Open Delete
ghjk#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
ghjk#i27992875ec4286a24e569b1e015b0473 Open Delete
ghjk#i5784b3886628c4362594ffa43547edb4 Open Delete
ghjk#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
ghjk#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
ghjk#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
ghjk#ie025efbbb0738ed01a63b326c174233e Open Delete
ghkjgykg Open Delete
gjkl Open Delete
Group B Open Delete
Group C Open Delete
Group%20B Open Delete
Group%2BC Open Delete
Group%2BC#i21ef661e2506d5d0e513dce166c17d49 Open Delete
Group%2BC#i27992875ec4286a24e569b1e015b0473 Open Delete
Group%2BC#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
gtgt Open Delete
hbhbhb Open Delete
Hello world Open Delete
Hello World ! Open Delete
HEYY :D Open Delete
HEYY%2520:D Open Delete
HEYY%2520:D#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
HEYY%2520:D#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
HEYY%2520:D#i5784b3886628c4362594ffa43547edb4 Open Delete
HEYY%2520:D#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
hghgh Open Delete
hh Open Delete
hjvhj Open Delete
ho Open Delete
hoho Open Delete
hujpizda Open Delete
i Open Delete
iuy Open Delete
j Open Delete
jhkl Open Delete
JJ Open Delete
jk Open Delete
khj Open Delete
khj#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
khj#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
khj#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
khj#ie025efbbb0738ed01a63b326c174233e Open Delete
kjh Open Delete
kjkjkj Open Delete
kk Open Delete
kkk Open Delete
kkk#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
kkk#i8c18088ea4d8dd4d6e5e986bceed35da Open Delete
kkk#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
kkk#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
kkk#ie025efbbb0738ed01a63b326c174233e Open Delete
kpok%C2%B4p Open Delete
kpok´p Open Delete
lel Open Delete
lmklk Open Delete
lol Open Delete
loslos Open Delete
mmm Open Delete
mon putain de tableau Open Delete
myarr Open Delete
name Open Delete
Names Open Delete
new Open Delete
new test Open Delete
new_22 Open Delete
new%2520test Open Delete
nmn#i21ef661e2506d5d0e513dce166c17d49 Open Delete
nmn#i27992875ec4286a24e569b1e015b0473 Open Delete
nmn#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
nmn#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
nmn#ie025efbbb0738ed01a63b326c174233e Open Delete
Nouveau Open Delete
ñsfkjaldsa Open Delete
oı Open Delete
oı Open Delete
oezjfez Open Delete
oij Open Delete
ordersCollection Open Delete
Ouiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii Open Delete
Ouiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii Open Delete
Pepa Open Delete
peppo Open Delete
perses#i5784b3886628c4362594ffa43547edb4 Open Delete
perses#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
perses#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
poiuytre Open Delete
polo Open Delete
pornhub.com Open Delete
pppppii#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
pppppii#i21ef661e2506d5d0e513dce166c17d49 Open Delete
pppppii#i27992875ec4286a24e569b1e015b0473 Open Delete
pppppii#i5784b3886628c4362594ffa43547edb4 Open Delete
pppppii#ie025efbbb0738ed01a63b326c174233e Open Delete
product Open Delete
project 1 Open Delete
Putin Open Delete
qwerqwerqw Open Delete
rar Open Delete
rfermkferkmfe Open Delete
rrgf Open Delete
rrrr#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
rrrr#i21ef661e2506d5d0e513dce166c17d49 Open Delete
rrrr#i27992875ec4286a24e569b1e015b0473 Open Delete
rrrr#i5784b3886628c4362594ffa43547edb4 Open Delete
rrrr#ie025efbbb0738ed01a63b326c174233e Open Delete
saassa Open Delete
sami Open Delete
sample Open Delete
sdasd Open Delete
sdf Open Delete
seeme Open Delete
seeme#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
seeme#i21ef661e2506d5d0e513dce166c17d49 Open Delete
seeme#i27992875ec4286a24e569b1e015b0473 Open Delete
seeme#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
seeme#ie025efbbb0738ed01a63b326c174233e Open Delete
sfsdfsd Open Delete
someNewArray Open Delete
someNewArray#i1097c8b84b58a65ed6ec7b4f0da3ab67 Open Delete
someNewArray#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
someNewArray#ic3ee8978c60737ab5d058b5a3f6a1b09 Open Delete
someNewArray#ie025efbbb0738ed01a63b326c174233e Open Delete
ss Open Delete
Starojitski 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#i1dcd1cbb0d8eeb1fd3a32dc2aa9c8013 Open Delete
Ta%2520mere%2520la%2520grosse%2520choin#i21ef661e2506d5d0e513dce166c17d49 Open Delete
tableau cellule unique Open Delete
Telous Open Delete
tes Open Delete
tesr Open Delete
tesss Open Delete
tesst Open Delete
TEST Open Delete
test34 Open Delete
test34'A=0 Open Delete
testarray Open Delete
teste Open Delete
Tester Open Delete
testname Open Delete
testsetse Open Delete
texte Open Delete
the test Open Delete
this is an array Open Delete
this%20is%20an%20array Open Delete
tojo Open Delete
tre Open Delete
tryy5 Open Delete
tttttz Open Delete
tyty Open Delete
tzzttz Open Delete
ugghutugituiutu Open Delete
uhj Open Delete
ui Open Delete
uiu Open Delete
uuu Open Delete
uytuuyt Open Delete
Vai que da Open Delete
Vai%20que%20da Open Delete
Vai%2520que%2520da Open Delete
Volta Dilma Fora Temer Open Delete
Volta%2520Dilma%2520Fo Open Delete
Volta%2520Dilma%2520Fora% Open Delete
Volta%2520Dilma%2520Fora%2520Temer#i21ef661e2506d5d0e513dce16 Open Delete
Volta%2520Dilma%2520Fora%2520Temer#i21ef661e2506d5d0e513dce166c17d49 Open Delete
Volta%2520Dilma%2520Fora%2520Temer#ibcac9f4c58199eeaa7ba5c7750b8434b Open Delete
Volta%2520Dilma%2520Fora%2520Temer#ie025efbbb0738ed01a63b326c174233e Open Delete
Volta+Dilma+Fora+Temer Open Delete
vv Open Delete
vxvxcvxcv Open Delete
werweexample Open Delete
Woop%20wooop Open Delete
wqeqe Open Delete
ww Open Delete
xcxcxcx Open Delete
xxx Open Delete
yfcx Open Delete
zizizizizi Open Delete
тест Open Delete
<?php

namespace Fuz\AppBundle\Base;

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

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

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

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

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

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

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

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

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

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

namespace Fuz\AppBundle\Controller;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

namespace Fuz\AppBundle\Entity;

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

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

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

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

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

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

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

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

        return $this;
    }

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

namespace Fuz\AppBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

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

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

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

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

        return $this;
    }

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

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

        return $this;
    }

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

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

        return $this;
    }

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

namespace Fuz\AppBundle\Form;

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

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

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

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

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

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

namespace Fuz\AppBundle\Form;

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

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

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

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

namespace Fuz\AppBundle\Repository;

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

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

        return $data;
    }

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

        return $data;
    }

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

        return $names;
    }

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

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

{% block my_element_widget %}

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

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

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

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

{% block body %}

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

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

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

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

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

    <hr/>

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

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

{% endblock %}

{% block script %}

    <script type="text/javascript">

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

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

    </script>

{% endblock %}