diff --git a/.php-cs-fixer.dist.php b/.php-cs-fixer.dist.php
index 4b5bf98ee..31d64e600 100644
--- a/.php-cs-fixer.dist.php
+++ b/.php-cs-fixer.dist.php
@@ -13,6 +13,7 @@ $finder = PhpCsFixer\Finder::create();
 
 $finder
     ->in(__DIR__.'/src')
+    ->in(__DIR__.'/utils')
     ->append([__FILE__])
     ->exclude(['docs/', 'tests/app'])
     ->notPath('tests/app')
diff --git a/composer.json b/composer.json
index f6d3eb27a..d3567bca0 100644
--- a/composer.json
+++ b/composer.json
@@ -67,6 +67,7 @@
         "fakerphp/faker": "^1.13",
         "jangregor/phpstan-prophecy": "^1.0",
         "nelmio/alice": "^3.8",
+        "nikic/php-parser": "^4.15",
         "phpspec/prophecy-phpunit": "^2.0",
         "phpstan/extension-installer": "^1.2",
         "phpstan/phpstan": "^1.9",
@@ -110,7 +111,9 @@
         "psr-4": {
             "App\\": "tests/app/src/",
             "Chill\\DocGeneratorBundle\\Tests\\": "src/Bundle/ChillDocGeneratorBundle/tests",
-            "Chill\\WopiBundle\\Tests\\": "src/Bundle/ChillDocGeneratorBundle/tests"
+            "Chill\\WopiBundle\\Tests\\": "src/Bundle/ChillDocGeneratorBundle/tests",
+            "Utils\\Rector\\": "utils/rector/src",
+            "Utils\\Rector\\Tests\\": "utils/rector/tests"
         }
     },
     "config": {
diff --git a/phpstan.neon.dist b/phpstan.neon.dist
index 56b7c2228..62dbe0468 100644
--- a/phpstan.neon.dist
+++ b/phpstan.neon.dist
@@ -2,6 +2,7 @@ parameters:
     level: 5
     paths:
         - src/
+        - utils/
     tmpDir: .cache/
     reportUnmatchedIgnoredErrors: false
     excludePaths:
diff --git a/phpunit.rector.xml b/phpunit.rector.xml
new file mode 100644
index 000000000..f8d9d3a11
--- /dev/null
+++ b/phpunit.rector.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.6/phpunit.xsd"
+         bootstrap="tests/app/vendor/autoload.php"
+         cacheResultFile=".cache/phpunit/test-results-rector"
+         executionOrder="depends,defects"
+         forceCoversAnnotation="true"
+         beStrictAboutCoversAnnotation="true"
+         beStrictAboutOutputDuringTests="true"
+         beStrictAboutTodoAnnotatedTests="true"
+         convertDeprecationsToExceptions="true"
+         failOnRisky="true"
+         failOnWarning="true"
+         verbose="true"
+         colors="true"
+>
+    <testsuites>
+        <testsuite name="default">
+            <directory>utils/rector/tests</directory>
+        </testsuite>
+    </testsuites>
+
+    <coverage cacheDirectory=".cache/phpunit/code-coverage-rector"
+              processUncoveredFiles="true">
+        <include>
+            <directory suffix=".php">utils/rector/src</directory>
+        </include>
+    </coverage>
+</phpunit>
diff --git a/utils/rector/src/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector.php b/utils/rector/src/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector.php
new file mode 100644
index 000000000..c41ecfa91
--- /dev/null
+++ b/utils/rector/src/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector.php
@@ -0,0 +1,170 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Utils\Rector\Rector;
+
+use Chill\MainBundle\Export\FilterInterface;
+use PhpParser\Node;
+use Rector\Core\Rector\AbstractRector;
+use Rector\Symfony\NodeAnalyzer\ClassAnalyzer;
+use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
+
+class ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector extends AbstractRector
+{
+    public function __construct(
+        private readonly ClassAnalyzer $classAnalyzer,
+    ) {
+    }
+
+    public function getRuleDefinition(): RuleDefinition
+    {
+        return new RuleDefinition(
+            'Add a getFormDefault data method on exports, filters and aggregators, filled with default data',
+            []
+        );
+    }
+
+    public function getNodeTypes(): array
+    {
+        return [Node\Stmt\Class_::class];
+    }
+
+    public function refactor(Node $node): ?Node
+    {
+        if (!$node instanceof Node\Stmt\Class_) {
+            return null;
+        }
+
+        if (!$this->classAnalyzer->hasImplements($node, FilterInterface::class)) {
+            return null;
+        }
+
+        $buildFormStmtIndex = null;
+        $hasGetFormDefaultDataMethod = false;
+        foreach ($node->stmts as $k => $stmt) {
+            if (!$stmt instanceof Node\Stmt\ClassMethod) {
+                continue;
+            }
+
+            if ('buildForm' === $stmt->name->name) {
+                $buildFormStmtIndex = $k;
+            }
+
+            if ('getFormDefaultData' === $stmt->name->name) {
+                $hasGetFormDefaultDataMethod = true;
+            }
+        }
+
+        if ($hasGetFormDefaultDataMethod || null === $buildFormStmtIndex) {
+            return null;
+        }
+
+        $stmtBefore = array_slice($node->stmts, 0, $buildFormStmtIndex, false);
+        $stmtAfter = array_slice($node->stmts, $buildFormStmtIndex + 1);
+
+        // lines to satisfay phpstan parser
+        if (!$node->stmts[$buildFormStmtIndex] instanceof Node\Stmt\ClassMethod) {
+            throw new \LogicException();
+        }
+
+        ['build_form_method' => $buildFormMethod, 'empty_to_replace' => $emptyToReplace]
+            = $this->filterBuildFormMethod($node->stmts[$buildFormStmtIndex]);
+
+        $node->stmts = [
+            ...$stmtBefore,
+            $buildFormMethod,
+            $this->makeGetFormDefaultData($node->stmts[$buildFormStmtIndex], $emptyToReplace),
+            ...$stmtAfter,
+        ];
+
+        return $node;
+    }
+
+    private function makeGetFormDefaultData(Node\Stmt\ClassMethod $buildFormMethod, array $emptyToReplace): Node\Stmt\ClassMethod
+    {
+        $method = new Node\Stmt\ClassMethod('getFormDefaultData');
+        $method->flags = Node\Stmt\Class_::MODIFIER_PUBLIC;
+        $method->returnType = new Node\Identifier('array');
+
+        $data = new Node\Expr\Array_([]);
+
+        foreach ($emptyToReplace as $key => $value) {
+            $item = new Node\Expr\ArrayItem($value, new Node\Scalar\String_($key));
+            $data->items[] = $item;
+        }
+
+        $method->stmts[] = new Node\Stmt\Return_($data);
+
+        return $method;
+    }
+
+    /**
+     * @param Node\Stmt\ClassMethod $buildFormMethod
+     * @return array{"build_form_method": Node\Stmt\ClassMethod, "empty_to_replace": array<string, mixed>}
+     */
+    private function filterBuildFormMethod(Node\Stmt\ClassMethod $buildFormMethod): array
+    {
+        $builderName = $buildFormMethod->params[0]->var->name;
+
+        $newStmts = [];
+        $emptyDataToReplace = [];
+
+        foreach ($buildFormMethod->stmts as $stmt) {
+            if ($stmt instanceof Node\Stmt\Expression
+                // it must be a method call
+                && $stmt->expr instanceof Node\Expr\MethodCall
+                // the method call must be "add"
+                && $stmt->expr->name instanceof Node\Identifier
+                && $stmt->expr->name->name === 'add'
+                // and the method call must apply on the builder (compare with builderName)
+                && $stmt->expr->var instanceof Node\Expr\Variable
+                && $stmt->expr->var->name === $builderName
+                // it must have a first argument, a string
+                // TODO what happens if a value, or a const ?
+                && ($stmt->expr->args[0] ?? null) instanceof Node\Arg
+                && $stmt->expr->args[0]->value instanceof Node\Scalar\String_
+                // and a third argument, an array
+                && ($stmt->expr->args[2] ?? null) instanceof Node\Arg
+                && $stmt->expr->args[2]->value instanceof Node\Expr\Array_
+            ) {
+
+                // we parse on the 3rd argument, to find if there is an 'empty_data' key
+                $emptyDataIndex = null;
+                foreach ($stmt->expr->args[2]->value->items as $arrayItemIndex => $item) {
+                    /* @phpstan-ignore-next-line */
+                    if ($item->key->value === 'data') {
+                        $k = $stmt->expr->args[0]->value->value;
+                        $emptyDataToReplace[$k] = $item->value;
+                        $emptyDataIndex = $arrayItemIndex;
+                    }
+                }
+
+                if (null !== $emptyDataIndex) {
+                    $stmt->expr->args[2]->value->items = array_values(
+                        array_filter(
+                            $stmt->expr->args[2]->value->items,
+                            /* @phpstan-ignore-next-line */
+                            fn (Node\Expr\ArrayItem $item) => $item->key->value !== 'data'
+                        )
+                    );
+                }
+
+                $newStmts[] = $stmt;
+            } else {
+                $newStmts[] = $stmt;
+            }
+        }
+
+        $buildFormMethod->stmts = $newStmts;
+
+        return ['build_form_method' => $buildFormMethod, "empty_to_replace" => $emptyDataToReplace];
+    }
+}
diff --git a/utils/rector/tests/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRectorTest.php b/utils/rector/tests/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRectorTest.php
new file mode 100644
index 000000000..800d2876f
--- /dev/null
+++ b/utils/rector/tests/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRectorTest.php
@@ -0,0 +1,40 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Utils\Rector\Tests\ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector;
+
+use Rector\Testing\PHPUnit\AbstractRectorTestCase;
+use Symplify\SmartFileSystem\SmartFileInfo;
+
+/**
+ * @internal
+ * @coversNothing
+ */
+class ChillBundleAddFormDefaultDataOnExportFilterAggregatorRectorTest extends AbstractRectorTestCase
+{
+    /**
+     * @dataProvider provideData
+     */
+    public function test(string $file): void
+    {
+        $this->doTestFile($file);
+    }
+
+    public function provideData(): \Iterator
+    {
+        return self::yieldFilesFromDirectory(__DIR__.'/Fixture');
+    }
+
+    public function provideConfigFilePath(): string
+    {
+        return __DIR__.'/config/config.php';
+    }
+}
diff --git a/utils/rector/tests/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector/Fixture/filter-multiple-reuse-data-on-form-default-data.php.inc b/utils/rector/tests/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector/Fixture/filter-multiple-reuse-data-on-form-default-data.php.inc
new file mode 100644
index 000000000..5429d3c82
--- /dev/null
+++ b/utils/rector/tests/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector/Fixture/filter-multiple-reuse-data-on-form-default-data.php.inc
@@ -0,0 +1,107 @@
+<?php
+
+namespace Utils\Rector\Tests\ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector\Fixture;
+
+use Chill\MainBundle\Export\FilterInterface;
+use Chill\MainBundle\Form\Type\PickRollingDateType;
+use Chill\MainBundle\Service\RollingDate\RollingDate;
+use Doctrine\ORM\QueryBuilder;
+use Symfony\Component\Form\Extension\Core\Type\TextType;
+use Symfony\Component\Form\FormBuilderInterface;
+
+class MyClass implements FilterInterface
+{
+    public function describeAction($data, $format = 'string')
+    {
+        // TODO: Implement describeAction() method.
+    }
+
+    public function buildForm(FormBuilderInterface $builder)
+    {
+        $builder->add('foo', PickRollingDateType::class, [
+            'label' => 'Test thing',
+            'data' => new RollingDate(RollingDate::T_TODAY)
+        ]);
+
+        $builder->add('baz', TextType::class, [
+            'label' => 'OrNiCar',
+            'data' => 'Castor'
+        ]);
+    }
+
+    public function getTitle()
+    {
+        // TODO: Implement getTitle() method.
+    }
+
+    public function addRole(): ?string
+    {
+        // TODO: Implement addRole() method.
+    }
+
+    public function alterQuery(QueryBuilder $qb, $data)
+    {
+        // TODO: Implement alterQuery() method.
+    }
+
+    public function applyOn()
+    {
+        // TODO: Implement applyOn() method.
+    }
+}
+?>
+-----
+<?php
+
+namespace Utils\Rector\Tests\ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector\Fixture;
+
+use Chill\MainBundle\Export\FilterInterface;
+use Chill\MainBundle\Form\Type\PickRollingDateType;
+use Chill\MainBundle\Service\RollingDate\RollingDate;
+use Doctrine\ORM\QueryBuilder;
+use Symfony\Component\Form\Extension\Core\Type\TextType;
+use Symfony\Component\Form\FormBuilderInterface;
+
+class MyClass implements FilterInterface
+{
+    public function describeAction($data, $format = 'string')
+    {
+        // TODO: Implement describeAction() method.
+    }
+
+    public function buildForm(FormBuilderInterface $builder)
+    {
+        $builder->add('foo', PickRollingDateType::class, [
+            'label' => 'Test thing'
+        ]);
+
+        $builder->add('baz', TextType::class, [
+            'label' => 'OrNiCar'
+        ]);
+    }
+    public function getFormDefaultData(): array
+    {
+        return ['foo' => new RollingDate(RollingDate::T_TODAY), 'baz' => 'Castor'];
+    }
+
+    public function getTitle()
+    {
+        // TODO: Implement getTitle() method.
+    }
+
+    public function addRole(): ?string
+    {
+        // TODO: Implement addRole() method.
+    }
+
+    public function alterQuery(QueryBuilder $qb, $data)
+    {
+        // TODO: Implement alterQuery() method.
+    }
+
+    public function applyOn()
+    {
+        // TODO: Implement applyOn() method.
+    }
+}
+?>
diff --git a/utils/rector/tests/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector/Fixture/filter-no-data-on-builder.php.inc b/utils/rector/tests/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector/Fixture/filter-no-data-on-builder.php.inc
new file mode 100644
index 000000000..285c16b50
--- /dev/null
+++ b/utils/rector/tests/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector/Fixture/filter-no-data-on-builder.php.inc
@@ -0,0 +1,105 @@
+<?php
+
+namespace Utils\Rector\Tests\ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector\Fixture;
+
+use Chill\MainBundle\Export\FilterInterface;
+use Chill\MainBundle\Form\Type\PickRollingDateType;
+use Chill\MainBundle\Service\RollingDate\RollingDate;
+use Doctrine\ORM\QueryBuilder;
+use Symfony\Component\Form\Extension\Core\Type\TextType;
+use Symfony\Component\Form\FormBuilderInterface;
+
+class MyClass implements FilterInterface
+{
+    public function describeAction($data, $format = 'string')
+    {
+        // TODO: Implement describeAction() method.
+    }
+
+    public function buildForm(FormBuilderInterface $builder)
+    {
+        $builder->add('foo', PickRollingDateType::class, [
+            'label' => 'Test thing',
+        ]);
+
+        $builder->add('baz', TextType::class, [
+            'label' => 'OrNiCar',
+        ]);
+    }
+
+    public function getTitle()
+    {
+        // TODO: Implement getTitle() method.
+    }
+
+    public function addRole(): ?string
+    {
+        // TODO: Implement addRole() method.
+    }
+
+    public function alterQuery(QueryBuilder $qb, $data)
+    {
+        // TODO: Implement alterQuery() method.
+    }
+
+    public function applyOn()
+    {
+        // TODO: Implement applyOn() method.
+    }
+}
+?>
+-----
+<?php
+
+namespace Utils\Rector\Tests\ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector\Fixture;
+
+use Chill\MainBundle\Export\FilterInterface;
+use Chill\MainBundle\Form\Type\PickRollingDateType;
+use Chill\MainBundle\Service\RollingDate\RollingDate;
+use Doctrine\ORM\QueryBuilder;
+use Symfony\Component\Form\Extension\Core\Type\TextType;
+use Symfony\Component\Form\FormBuilderInterface;
+
+class MyClass implements FilterInterface
+{
+    public function describeAction($data, $format = 'string')
+    {
+        // TODO: Implement describeAction() method.
+    }
+
+    public function buildForm(FormBuilderInterface $builder)
+    {
+        $builder->add('foo', PickRollingDateType::class, [
+            'label' => 'Test thing',
+        ]);
+
+        $builder->add('baz', TextType::class, [
+            'label' => 'OrNiCar',
+        ]);
+    }
+    public function getFormDefaultData(): array
+    {
+        return [];
+    }
+
+    public function getTitle()
+    {
+        // TODO: Implement getTitle() method.
+    }
+
+    public function addRole(): ?string
+    {
+        // TODO: Implement addRole() method.
+    }
+
+    public function alterQuery(QueryBuilder $qb, $data)
+    {
+        // TODO: Implement alterQuery() method.
+    }
+
+    public function applyOn()
+    {
+        // TODO: Implement applyOn() method.
+    }
+}
+?>
diff --git a/utils/rector/tests/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector/Fixture/filter-reuse-data-on-form-default-data.php.inc b/utils/rector/tests/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector/Fixture/filter-reuse-data-on-form-default-data.php.inc
new file mode 100644
index 000000000..b2e78e49c
--- /dev/null
+++ b/utils/rector/tests/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector/Fixture/filter-reuse-data-on-form-default-data.php.inc
@@ -0,0 +1,96 @@
+<?php
+
+namespace Utils\Rector\Tests\ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector\Fixture;
+
+use Chill\MainBundle\Export\FilterInterface;
+use Chill\MainBundle\Form\Type\PickRollingDateType;
+use Chill\MainBundle\Service\RollingDate\RollingDate;
+use Doctrine\ORM\QueryBuilder;
+use Symfony\Component\Form\FormBuilderInterface;
+
+class MyClass implements FilterInterface
+{
+    public function describeAction($data, $format = 'string')
+    {
+        // TODO: Implement describeAction() method.
+    }
+
+    public function buildForm(FormBuilderInterface $builder)
+    {
+        $builder->add('test', PickRollingDateType::class, [
+            'label' => 'Test thing',
+            'data' => new RollingDate(RollingDate::T_TODAY)
+        ]);
+    }
+
+    public function getTitle()
+    {
+        // TODO: Implement getTitle() method.
+    }
+
+    public function addRole(): ?string
+    {
+        // TODO: Implement addRole() method.
+    }
+
+    public function alterQuery(QueryBuilder $qb, $data)
+    {
+        // TODO: Implement alterQuery() method.
+    }
+
+    public function applyOn()
+    {
+        // TODO: Implement applyOn() method.
+    }
+}
+?>
+-----
+<?php
+
+namespace Utils\Rector\Tests\ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector\Fixture;
+
+use Chill\MainBundle\Export\FilterInterface;
+use Chill\MainBundle\Form\Type\PickRollingDateType;
+use Chill\MainBundle\Service\RollingDate\RollingDate;
+use Doctrine\ORM\QueryBuilder;
+use Symfony\Component\Form\FormBuilderInterface;
+
+class MyClass implements FilterInterface
+{
+    public function describeAction($data, $format = 'string')
+    {
+        // TODO: Implement describeAction() method.
+    }
+
+    public function buildForm(FormBuilderInterface $builder)
+    {
+        $builder->add('test', PickRollingDateType::class, [
+            'label' => 'Test thing'
+        ]);
+    }
+    public function getFormDefaultData(): array
+    {
+        return ['test' => new RollingDate(RollingDate::T_TODAY)];
+    }
+
+    public function getTitle()
+    {
+        // TODO: Implement getTitle() method.
+    }
+
+    public function addRole(): ?string
+    {
+        // TODO: Implement addRole() method.
+    }
+
+    public function alterQuery(QueryBuilder $qb, $data)
+    {
+        // TODO: Implement alterQuery() method.
+    }
+
+    public function applyOn()
+    {
+        // TODO: Implement applyOn() method.
+    }
+}
+?>
diff --git a/utils/rector/tests/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector/Fixture/filter-with-no-method-get-form-default-data.php.inc b/utils/rector/tests/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector/Fixture/filter-with-no-method-get-form-default-data.php.inc
new file mode 100644
index 000000000..687bd9d0c
--- /dev/null
+++ b/utils/rector/tests/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector/Fixture/filter-with-no-method-get-form-default-data.php.inc
@@ -0,0 +1,87 @@
+<?php
+
+namespace Utils\Rector\Tests\ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector\Fixture;
+
+use Chill\MainBundle\Export\FilterInterface;
+use Doctrine\ORM\QueryBuilder;
+use Symfony\Component\Form\FormBuilderInterface;
+
+class MyClass implements FilterInterface
+{
+    public function describeAction($data, $format = 'string')
+    {
+        // TODO: Implement describeAction() method.
+    }
+
+    public function buildForm(FormBuilderInterface $builder)
+    {
+        // TODO: Implement buildForm() method.
+    }
+
+    public function getTitle()
+    {
+        // TODO: Implement getTitle() method.
+    }
+
+    public function addRole(): ?string
+    {
+        // TODO: Implement addRole() method.
+    }
+
+    public function alterQuery(QueryBuilder $qb, $data)
+    {
+        // TODO: Implement alterQuery() method.
+    }
+
+    public function applyOn()
+    {
+        // TODO: Implement applyOn() method.
+    }
+}
+?>
+-----
+<?php
+
+namespace Utils\Rector\Tests\ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector\Fixture;
+
+use Chill\MainBundle\Export\FilterInterface;
+use Doctrine\ORM\QueryBuilder;
+use Symfony\Component\Form\FormBuilderInterface;
+
+class MyClass implements FilterInterface
+{
+    public function describeAction($data, $format = 'string')
+    {
+        // TODO: Implement describeAction() method.
+    }
+
+    public function buildForm(FormBuilderInterface $builder)
+    {
+        // TODO: Implement buildForm() method.
+    }
+    public function getFormDefaultData(): array
+    {
+        return [];
+    }
+
+    public function getTitle()
+    {
+        // TODO: Implement getTitle() method.
+    }
+
+    public function addRole(): ?string
+    {
+        // TODO: Implement addRole() method.
+    }
+
+    public function alterQuery(QueryBuilder $qb, $data)
+    {
+        // TODO: Implement alterQuery() method.
+    }
+
+    public function applyOn()
+    {
+        // TODO: Implement applyOn() method.
+    }
+}
+?>
diff --git a/utils/rector/tests/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector/Fixture/skip-filter-existing-get-form-default-data-method.php.inc b/utils/rector/tests/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector/Fixture/skip-filter-existing-get-form-default-data-method.php.inc
new file mode 100644
index 000000000..2fefc908d
--- /dev/null
+++ b/utils/rector/tests/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector/Fixture/skip-filter-existing-get-form-default-data-method.php.inc
@@ -0,0 +1,46 @@
+<?php
+
+namespace Utils\Rector\Tests\ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector\Fixture;
+
+use Chill\MainBundle\Export\FilterInterface;
+use Doctrine\ORM\QueryBuilder;
+use Symfony\Component\Form\FormBuilderInterface;
+
+class MyClass implements FilterInterface
+{
+    public function describeAction($data, $format = 'string')
+    {
+        // TODO: Implement describeAction() method.
+    }
+
+    public function buildForm(FormBuilderInterface $builder)
+    {
+        // TODO: Implement buildForm() method.
+    }
+
+    public function getFormDefaultData(): array
+    {
+        return [];
+    }
+
+    public function getTitle()
+    {
+        // TODO: Implement getTitle() method.
+    }
+
+    public function addRole(): ?string
+    {
+        // TODO: Implement addRole() method.
+    }
+
+    public function alterQuery(QueryBuilder $qb, $data)
+    {
+        // TODO: Implement alterQuery() method.
+    }
+
+    public function applyOn()
+    {
+        // TODO: Implement applyOn() method.
+    }
+}
+
diff --git a/utils/rector/tests/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector/config/config.php b/utils/rector/tests/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector/config/config.php
new file mode 100644
index 000000000..d8b63bfd5
--- /dev/null
+++ b/utils/rector/tests/Rector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector/config/config.php
@@ -0,0 +1,14 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+return static function (\Rector\Config\RectorConfig $rectorConfig): void {
+    $rectorConfig->rule(\Utils\Rector\Rector\ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector::class);
+};