N°8771 - Add Symfony form component to iTop core

- IO debug

dictionaries/ui/components/input/en.dictionary.itop.input.php

@@ -22,4 +22,6 @@ Dict::Add('EN US', 'English', 'English', array(
 	'UI:Component:Input:ChangeNotAllowed' => 'This change is not allowed',
 	'UI:Component:Input:Password:DoesNotMatch' => 'Passwords do not match',
 	'UI:Component:Input:Set:MinimumItems' => 'Minimum %1$s item(s) required',
+
+	'UI:Component:Input:Select:Select_item' => 'Select an item...'
 ));

dictionaries/ui/components/input/fr.dictionary.itop.input.php

@@ -13,4 +13,6 @@ Dict::Add('FR FR', 'French', 'Français', array(
 	'UI:Component:Input:ChangeNotAllowed' => 'Cette modification n\'est pas autorisée',
 	'UI:Component:Input:Password:DoesNotMatch' => 'Les mots de passe ne correspondent pas',
 	'UI:Component:Input:Set:MinimumItems' => 'Minimum %1$s élément(s) requis',
+
+	'UI:Component:Input:Select:Select_item' => 'Sélectionnez un élément...'
 ));

lib/composer/autoload_classmap.php

@@ -475,6 +475,7 @@ return array(
     'Combodo\\iTop\\Form\\Validator\\SelectObjectValidator' => $baseDir . '/sources/Form/Validator/SelectObjectValidator.php',
     'Combodo\\iTop\\Forms\\Block\\AbstractFormBlock' => $baseDir . '/sources/Forms/Block/AbstractFormBlock.php',
     'Combodo\\iTop\\Forms\\Block\\Base\\ChoiceFormBlock' => $baseDir . '/sources/Forms/Block/Base/ChoiceFormBlock.php',
+    'Combodo\\iTop\\Forms\\Block\\Base\\CollectionBlock' => $baseDir . '/sources/Forms/Block/Base/CollectionBlock.php',
     'Combodo\\iTop\\Forms\\Block\\Base\\FormBlock' => $baseDir . '/sources/Forms/Block/Base/FormBlock.php',
     'Combodo\\iTop\\Forms\\Block\\Base\\TextAreaFormBlock' => $baseDir . '/sources/Forms/Block/Base/TextAreaFormBlock.php',
     'Combodo\\iTop\\Forms\\Block\\Base\\TextFormBlock' => $baseDir . '/sources/Forms/Block/Base/TextFormBlock.php',
@@ -483,6 +484,11 @@ return array(
     'Combodo\\iTop\\Forms\\Block\\DataModel\\OqlFormBlock' => $baseDir . '/sources/Forms/Block/DataModel/OqlFormBlock.php',
     'Combodo\\iTop\\Forms\\Block\\FormBlockException' => $baseDir . '/sources/Forms/Block/FormBlockException.php',
     'Combodo\\iTop\\Forms\\Block\\FormBlockIOException' => $baseDir . '/sources/Forms/Block/IO/FormBlockIOException.php',
+    'Combodo\\iTop\\Forms\\Block\\FormType\\AttributeFormType' => $baseDir . '/sources/Forms/Block/FormType/AttributeFormType.php',
+    'Combodo\\iTop\\Forms\\Block\\FormType\\AttributeValueFormType' => $baseDir . '/sources/Forms/Block/FormType/AttributeValueFormType.php',
+    'Combodo\\iTop\\Forms\\Block\\FormType\\ChoiceFormType' => $baseDir . '/sources/Forms/Block/FormType/ChoiceFormType.php',
+    'Combodo\\iTop\\Forms\\Block\\FormType\\CollectionFormType' => $baseDir . '/sources/Forms/Block/FormType/CollectionFormType.php',
+    'Combodo\\iTop\\Forms\\Block\\FormType\\OqlFormType' => $baseDir . '/sources/Forms/Block/FormType/OqlFormType.php',
     'Combodo\\iTop\\Forms\\Block\\IO\\AbstractFormIO' => $baseDir . '/sources/Forms/Block/IO/AbstractFormIO.php',
     'Combodo\\iTop\\Forms\\Block\\IO\\Converter\\AbstractConverter' => $baseDir . '/sources/Forms/Block/IO/Converter/AbstractConverter.php',
     'Combodo\\iTop\\Forms\\Block\\IO\\Converter\\OqlToClassConverter' => $baseDir . '/sources/Forms/Block/IO/Converter/OqlToClassConverter.php',
@@ -501,10 +507,6 @@ return array(
     'Combodo\\iTop\\Forms\\FormBuilder\\FormTypeExtension' => $baseDir . '/sources/Forms/FormBuilder/FormTypeExtension.php',
     'Combodo\\iTop\\Forms\\FormBuilder\\ResolvedFormType' => $baseDir . '/sources/Forms/FormBuilder/ResolvedFormType.php',
     'Combodo\\iTop\\Forms\\FormBuilder\\ResolvedFormTypeFactory' => $baseDir . '/sources/Forms/FormBuilder/ResolvedFormTypeFactory.php',
-    'Combodo\\iTop\\Forms\\FormType\\AttributeFormType' => $baseDir . '/sources/Forms/FormType/AttributeFormType.php',
-    'Combodo\\iTop\\Forms\\FormType\\AttributeValueFormType' => $baseDir . '/sources/Forms/FormType/AttributeValueFormType.php',
-    'Combodo\\iTop\\Forms\\FormType\\ChoiceFormType' => $baseDir . '/sources/Forms/FormType/ChoiceFormType.php',
-    'Combodo\\iTop\\Forms\\FormType\\OqlFormType' => $baseDir . '/sources/Forms/FormType/OqlFormType.php',
     'Combodo\\iTop\\Forms\\Forms' => $baseDir . '/sources/Forms/Forms.php',
     'Combodo\\iTop\\Forms\\FormsException' => $baseDir . '/sources/Forms/FormsException.php',
     'Combodo\\iTop\\Forms\\Twig\\Extension\\FormCompatibilityExtension' => $baseDir . '/sources/Forms/Twig/Extension/FormCompatibilityExtension.php',

lib/composer/autoload_static.php

@@ -856,6 +856,7 @@ class ComposerStaticInit7f81b4a2a468a061c306af5e447a9a9f
         'Combodo\\iTop\\Form\\Validator\\SelectObjectValidator' => __DIR__ . '/../..' . '/sources/Form/Validator/SelectObjectValidator.php',
         'Combodo\\iTop\\Forms\\Block\\AbstractFormBlock' => __DIR__ . '/../..' . '/sources/Forms/Block/AbstractFormBlock.php',
         'Combodo\\iTop\\Forms\\Block\\Base\\ChoiceFormBlock' => __DIR__ . '/../..' . '/sources/Forms/Block/Base/ChoiceFormBlock.php',
+        'Combodo\\iTop\\Forms\\Block\\Base\\CollectionBlock' => __DIR__ . '/../..' . '/sources/Forms/Block/Base/CollectionBlock.php',
         'Combodo\\iTop\\Forms\\Block\\Base\\FormBlock' => __DIR__ . '/../..' . '/sources/Forms/Block/Base/FormBlock.php',
         'Combodo\\iTop\\Forms\\Block\\Base\\TextAreaFormBlock' => __DIR__ . '/../..' . '/sources/Forms/Block/Base/TextAreaFormBlock.php',
         'Combodo\\iTop\\Forms\\Block\\Base\\TextFormBlock' => __DIR__ . '/../..' . '/sources/Forms/Block/Base/TextFormBlock.php',
@@ -864,6 +865,11 @@ class ComposerStaticInit7f81b4a2a468a061c306af5e447a9a9f
         'Combodo\\iTop\\Forms\\Block\\DataModel\\OqlFormBlock' => __DIR__ . '/../..' . '/sources/Forms/Block/DataModel/OqlFormBlock.php',
         'Combodo\\iTop\\Forms\\Block\\FormBlockException' => __DIR__ . '/../..' . '/sources/Forms/Block/FormBlockException.php',
         'Combodo\\iTop\\Forms\\Block\\FormBlockIOException' => __DIR__ . '/../..' . '/sources/Forms/Block/IO/FormBlockIOException.php',
+        'Combodo\\iTop\\Forms\\Block\\FormType\\AttributeFormType' => __DIR__ . '/../..' . '/sources/Forms/Block/FormType/AttributeFormType.php',
+        'Combodo\\iTop\\Forms\\Block\\FormType\\AttributeValueFormType' => __DIR__ . '/../..' . '/sources/Forms/Block/FormType/AttributeValueFormType.php',
+        'Combodo\\iTop\\Forms\\Block\\FormType\\ChoiceFormType' => __DIR__ . '/../..' . '/sources/Forms/Block/FormType/ChoiceFormType.php',
+        'Combodo\\iTop\\Forms\\Block\\FormType\\CollectionFormType' => __DIR__ . '/../..' . '/sources/Forms/Block/FormType/CollectionFormType.php',
+        'Combodo\\iTop\\Forms\\Block\\FormType\\OqlFormType' => __DIR__ . '/../..' . '/sources/Forms/Block/FormType/OqlFormType.php',
         'Combodo\\iTop\\Forms\\Block\\IO\\AbstractFormIO' => __DIR__ . '/../..' . '/sources/Forms/Block/IO/AbstractFormIO.php',
         'Combodo\\iTop\\Forms\\Block\\IO\\Converter\\AbstractConverter' => __DIR__ . '/../..' . '/sources/Forms/Block/IO/Converter/AbstractConverter.php',
         'Combodo\\iTop\\Forms\\Block\\IO\\Converter\\OqlToClassConverter' => __DIR__ . '/../..' . '/sources/Forms/Block/IO/Converter/OqlToClassConverter.php',
@@ -882,10 +888,6 @@ class ComposerStaticInit7f81b4a2a468a061c306af5e447a9a9f
         'Combodo\\iTop\\Forms\\FormBuilder\\FormTypeExtension' => __DIR__ . '/../..' . '/sources/Forms/FormBuilder/FormTypeExtension.php',
         'Combodo\\iTop\\Forms\\FormBuilder\\ResolvedFormType' => __DIR__ . '/../..' . '/sources/Forms/FormBuilder/ResolvedFormType.php',
         'Combodo\\iTop\\Forms\\FormBuilder\\ResolvedFormTypeFactory' => __DIR__ . '/../..' . '/sources/Forms/FormBuilder/ResolvedFormTypeFactory.php',
-        'Combodo\\iTop\\Forms\\FormType\\AttributeFormType' => __DIR__ . '/../..' . '/sources/Forms/FormType/AttributeFormType.php',
-        'Combodo\\iTop\\Forms\\FormType\\AttributeValueFormType' => __DIR__ . '/../..' . '/sources/Forms/FormType/AttributeValueFormType.php',
-        'Combodo\\iTop\\Forms\\FormType\\ChoiceFormType' => __DIR__ . '/../..' . '/sources/Forms/FormType/ChoiceFormType.php',
-        'Combodo\\iTop\\Forms\\FormType\\OqlFormType' => __DIR__ . '/../..' . '/sources/Forms/FormType/OqlFormType.php',
         'Combodo\\iTop\\Forms\\Forms' => __DIR__ . '/../..' . '/sources/Forms/Forms.php',
         'Combodo\\iTop\\Forms\\FormsException' => __DIR__ . '/../..' . '/sources/Forms/FormsException.php',
         'Combodo\\iTop\\Forms\\Twig\\Extension\\FormCompatibilityExtension' => __DIR__ . '/../..' . '/sources/Forms/Twig/Extension/FormCompatibilityExtension.php',

sources/Forms/Block/AbstractFormBlock.php

@@ -6,6 +6,8 @@
 
 namespace Combodo\iTop\Forms\Block;
 
+use Combodo\iTop\Forms\Block\Base\FormBlock;
+use Combodo\iTop\Forms\Block\IO\Converter\AbstractConverter;
 use Combodo\iTop\Forms\Block\IO\FormInput;
 use Combodo\iTop\Forms\Block\IO\FormOutput;
 use IssueLog;
@@ -21,14 +23,17 @@ use Symfony\Component\Filesystem\Exception\IOException;
  */
 abstract class AbstractFormBlock
 {
+	/** @var null|FormBlock */
+	private ?FormBlock $oParent = null;
+
 	/** @var array form block inputs */
 	private array $aFormInputs = [];
 
 	/** @var array form block outputs */
 	private array $aFormOutputs = [];
 
-	/** @var bool flag */
-	private bool $bIsAdded = false;
+	/** @var bool flag indicating the form insertion */
+	private bool $bIsAddedToForm = false;
 
 	/**
 	 * Return the form type.
@@ -50,7 +55,7 @@ abstract class AbstractFormBlock
 	 * @param string $sName
 	 * @param array $aOptions
 	 */
-	public function __construct(private readonly string $sName, private array $aOptions = [])
+	public function __construct(private readonly string $sName, protected array $aOptions = [])
 	{
 		// Attach the form block
 		$this->aOptions['form_block'] = $this;
@@ -65,6 +70,28 @@ abstract class AbstractFormBlock
 		$this->InitOutputs();
 	}
 
+	/**
+	 * Set the parent block.
+	 *
+	 * @param FormBlock $oParent
+	 *
+	 * @return void
+	 */
+	public function SetParent(FormBlock $oParent): void
+	{
+		$this->oParent = $oParent;
+	}
+
+	/**
+	 * Get the parent block.
+	 *
+	 * @return FormBlock
+	 */
+	public function GetParent(): FormBlock
+	{
+		return $this->oParent;
+	}
+
 	/**
 	 * Return the form block name.
 	 *
@@ -100,12 +127,14 @@ abstract class AbstractFormBlock
 	/**
 	 * Add an input.
 	 *
-	 * @param FormInput $oFormInput
+	 * @param string $sName the input name
+	 * @param string $sType the type of the input
 	 *
 	 * @return void
 	 */
-	public function AddInput(FormInput $oFormInput): void
+	public function AddInput(string $sName, string $sType): void
 	{
+		$oFormInput = new FormInput($sName, $sType);
 		$oFormInput->SetOwnerBlock($this);
 		$this->aFormInputs[$oFormInput->GetName()] = $oFormInput;
 	}
@@ -130,12 +159,15 @@ abstract class AbstractFormBlock
 	/**
 	 * Add an output.
 	 *
-	 * @param FormOutput $oFormOutput
+	 * @param string $sName
+	 * @param string $sType
+	 * @param AbstractConverter|null $oConverter
 	 *
 	 * @return void
 	 */
-	public function AddOutput(FormOutput $oFormOutput): void
+	public function AddOutput(string $sName, string $sType, AbstractConverter $oConverter = null): void
 	{
+		$oFormOutput = new FormOutput($sName, $sType, $oConverter);
 		$oFormOutput->SetOwnerBlock($this);
 		$this->aFormOutputs[$oFormOutput->GetName()] = $oFormOutput;
 	}
@@ -143,7 +175,7 @@ abstract class AbstractFormBlock
 	/**
 	 * Get an output.
 	 *
-	 * @param string $sName
+	 * @param string $sName output name
 	 *
 	 * @return FormOutput
 	 * @throws FormBlockException
@@ -151,7 +183,7 @@ abstract class AbstractFormBlock
 	public function GetOutput(string $sName): FormOutput
 	{
 		if(!array_key_exists($sName, $this->aFormOutputs)) {
-			throw new FormBlockException('Missing ouput ' . $sName . ' for ' . $this->sName);
+			throw new FormBlockException('Missing output ' . $sName . ' for ' . $this->sName);
 		}
 
 		return $this->aFormOutputs[$sName];
@@ -180,19 +212,20 @@ abstract class AbstractFormBlock
 	/**
 	 * Attach an input to a block output.
 	 *
-	 * @param string $sInputName
-	 * @param AbstractFormBlock $oOutputBlock
-	 * @param string $sOutputName
+	 * @param string $sInputName the input name
+	 * @param string $sOutputBlockName the dependency block name
+	 * @param string $sOutputName the dependency output name
 	 *
 	 * @return $this
 	 * @throws FormBlockException
-	 * @throws FormBlockIOException
 	 */
-	public function DependsOnBlockOutput(string $sInputName, AbstractFormBlock $oOutputBlock, string $sOutputName): AbstractFormBlock
+	public function DependsOn(string $sInputName, string $sOutputBlockName, string $sOutputName): AbstractFormBlock
 	{
+
+		$oOutputBlock = $this->GetParent()->Get($sOutputBlockName);
 		$oFormInput = $this->GetInput($sInputName);
 		$oFormOutput = $oOutputBlock->GetOutput($sOutputName);
-		$oFormInput->BindFromOutput($oFormOutput);
+		$oFormOutput->BindToInput($oFormInput);
 
 		return $this;
 	}
@@ -200,47 +233,46 @@ abstract class AbstractFormBlock
 	/**
 	 * Attach an input to a parent block input.
 	 *
-	 * @param string $sInputName
-	 * @param AbstractFormBlock $oParentBlock
-	 * @param string $sParentInputName
+	 * @param string $sInputName input name
+	 * @param string $sParentInputName parent input name
 	 *
 	 * @return $this
 	 * @throws FormBlockException
 	 * @throws FormBlockIOException
 	 */
-	public function DependsOnParentBlockInput(string $sInputName, AbstractFormBlock $oParentBlock, string $sParentInputName): AbstractFormBlock
+	public function DependsOnParent(string $sInputName, string $sParentInputName): AbstractFormBlock
 	{
 		$oFormInput = $this->GetInput($sInputName);
-		$oParentFormInput = $oParentBlock->GetInput($sInputName);
-		$oFormInput->BindFromInput($oParentFormInput);
+		$oParentFormInput = $this->GetParent()->GetInput($sParentInputName);
+		$oParentFormInput->BindToInput($oFormInput);
 
 		return $this;
 	}
 
 	/**
-	 * Attach an output to a parent block outpu.
+	 * Attach an output to a parent block output.
 	 *
-	 * @param string $sOutputName
-	 * @param AbstractFormBlock $oParentBlock
-	 * @param string $sParentInputName
+	 * @param string $sOutputName output name
+	 * @param string $sParentOutputName parent output name
 	 *
 	 * @return $this
 	 * @throws FormBlockException
-	 * @throws FormBlockIOException
 	 */
-	public function BindOutputToParentBlockOutput(string $sOutputName, AbstractFormBlock $oParentBlock, string $sParentOutputName): AbstractFormBlock
+	public function ImpactParent(string $sOutputName, string $sParentOutputName): AbstractFormBlock
 	{
 		$oFormOutput = $this->GetOutput($sOutputName);
-		$oParentFormOutput = $oParentBlock->GetOutput($sParentOutputName);
-		$oParentFormOutput->BindFromOutput($oFormOutput);
+		$oParentFormOutput = $this->GetParent()->GetOutput($sParentOutputName);
+		$oFormOutput->BindToOutput($oParentFormOutput);
 
 		return $this;
 	}
 
 	/**
+	 * Check existence of one or more dependencies.
+	 *
 	 * @return bool
 	 */
-	public function HasAtLeastOneBoundInput(): bool
+	public function HasDependenciesBlocks(): bool
 	{
 		foreach ($this->aFormInputs as $oFormInput) {
 			if ($oFormInput->IsBound()) {
@@ -251,9 +283,11 @@ abstract class AbstractFormBlock
 	}
 
 	/**
+	 * Check existence of one or more dependents blocks.
+	 *
 	 * @return bool
 	 */
-	public function HasAtLeastOneBoundOutput(): bool
+	public function ImpactDependentsBlocks(): bool
 	{
 		/** @var FormOutput $oFormOutput */
 		foreach ($this->aFormOutputs as $oFormOutput) {
@@ -265,6 +299,8 @@ abstract class AbstractFormBlock
 	}
 
 	/**
+	 * Get bindings on inputs.
+	 *
 	 * @return array
 	 */
 	public function GetInputsBindings(): array
@@ -281,6 +317,8 @@ abstract class AbstractFormBlock
 	}
 
 	/**
+	 * Get bindings on outputs.
+	 *
 	 * @return array
 	 */
 	public function GetOutputBindings(): array
@@ -297,9 +335,11 @@ abstract class AbstractFormBlock
 	}
 
 	/**
+	 * Inputs data ready.
+	 *
 	 * @return bool
 	 */
-	public function IsInputsReady(): bool
+	public function IsInputsDataReady(): bool
 	{
 		foreach ($this->aFormInputs as $oFormInput) {
 			if ($oFormInput->IsBound()) {
@@ -313,24 +353,30 @@ abstract class AbstractFormBlock
 	}
 
 	/**
+	 * The block has been added to its parent.
+	 *
 	 * @return bool
 	 */
 	public function IsAdded(): bool
 	{
-		return $this->bIsAdded;
+		return $this->bIsAddedToForm;
 	}
 
 	/**
+	 * Indicate that the block has been added to its parent.
+	 *
 	 * @param bool $bIsAdded
 	 *
 	 * @return void
 	 */
 	public function SetAdded(bool $bIsAdded): void
 	{
-		$this->bIsAdded = $bIsAdded;
+		$this->bIsAddedToForm = $bIsAdded;
 	}
 
 	/**
+	 * Compute outputs values.
+	 *
 	 * @param string $sEventType
 	 * @param mixed $oData
 	 *
@@ -341,8 +387,8 @@ abstract class AbstractFormBlock
 		/** Iterate throw output @var FormOutput $oFormOutput */
 		foreach ($this->aFormOutputs as $oFormOutput) {
 
-			// Compute the output value
 			try{
+				// Compute the output value
 				$oFormOutput->ComputeValue($sEventType, $oData);
 			}
 			catch(IOException $oException){

sources/Forms/Block/Base/ChoiceFormBlock.php

@@ -7,7 +7,7 @@
 namespace Combodo\iTop\Forms\Block\Base;
 
 use Combodo\iTop\Forms\Block\AbstractFormBlock;
-use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
+use Combodo\iTop\Forms\Block\FormType\ChoiceFormType;
 
 /**
  * Form block for choices.
@@ -18,16 +18,13 @@ class ChoiceFormBlock extends AbstractFormBlock
 	/** @inheritdoc  */
 	public function GetFormType(): string
 	{
-		return ChoiceType::class;
+		return ChoiceFormType::class;
 	}
 
 	/** @inheritdoc  */
 	public function InitOptions(): array
 	{
 		return [
-			// debug purpose
-			'required' => false,
-			'placeholder' => 'Select an element...',
 		];
 	}
 }

sources/Forms/Block/Base/CollectionBlock.php

@@ -0,0 +1,47 @@
+<?php
+/*
+ * @copyright   Copyright (C) 2010-2025 Combodo SARL
+ * @license     http://opensource.org/licenses/AGPL-3.0
+ */
+
+namespace Combodo\iTop\Forms\Block\Base;
+
+use Combodo\iTop\Forms\Block\AbstractFormBlock;
+use Symfony\Component\Form\Extension\Core\Type\CollectionType;
+
+/**
+ * Collection form type.
+ *
+ */
+class CollectionBlock extends AbstractFormBlock
+{
+
+	public function __construct(string $sName, array $aOptions = [])
+	{
+		parent::__construct($sName, $aOptions);
+
+	}
+
+	/** @inheritdoc  */
+	public function GetFormType(): string
+	{
+		return CollectionType::class;
+	}
+
+	/** @inheritdoc  */
+	public function InitOptions(): array
+	{
+		$sBlockEntryType = $this->GetOptions()['block_entry_type'];
+		$sBlockEntryOptions = $this->GetOptions()['block_entry_options'];
+
+		$this->aOptions = [];
+
+		$oBlock = new ($sBlockEntryType)('prototype', $sBlockEntryOptions);
+
+		return [
+			'entry_type' => $oBlock->GetFormType()
+		];
+
+	}
+
+}

sources/Forms/Block/Base/FormBlock.php

@@ -7,6 +7,7 @@
 namespace Combodo\iTop\Forms\Block\Base;
 
 use Combodo\iTop\Forms\Block\AbstractFormBlock;
+use Combodo\iTop\Forms\FormsException;
 use Symfony\Component\Form\Extension\Core\Type\FormType;
 
 /**
@@ -15,21 +16,28 @@ use Symfony\Component\Form\Extension\Core\Type\FormType;
  */
 class FormBlock extends AbstractFormBlock
 {
-	/** @var array form sub blocks */
-	private array $aSubFormBlocks = [];
+	/** @var array children blocks */
+	private array $aChildrenBlocks = [];
 
 	/**
 	 * Constructor.
 	 *
-	 * @param string $sName
-	 * @param array $aOptions
+	 * @param string $sName block name
+	 * @param array $aOptions options
+	 *
+	 * @throws FormsException
 	 */
 	public function __construct(string $sName, array $aOptions = [])
 	{
 		parent::__construct($sName, $aOptions);
 
-		// Build the form
-		$this->BuildForm();
+		try {
+			// Build the form
+			$this->BuildForm();
+		}
+		catch (Exception $ex) {
+			throw new FormsException('Unable to construct demonstrator form.', 0, $ex);
+		}
 	}
 
 	/** @inheritdoc  */
@@ -47,26 +55,42 @@ class FormBlock extends AbstractFormBlock
 	}
 
 	/**
-	 * Add a sub form.
+	 * Add a child form.
 	 *
-	 * @param AbstractFormBlock $oSubFormBlock
+	 * @param string $sType block class name
+	 * @param string $sName block name
+	 * @param array $aOptions options
 	 *
 	 * @return $this
 	 */
-	public function AddSubFormBlock(AbstractFormBlock $oSubFormBlock): AbstractFormBlock
+	public function Add(string $sType, string $sName, array $aOptions): AbstractFormBlock
 	{
-		$this->aSubFormBlocks[] = $oSubFormBlock;
-		return $this;
+		$oSubFormBlock = new ($sType)($sName, $aOptions);
+		$this->aChildrenBlocks[$sName] = $oSubFormBlock;
+		$oSubFormBlock->SetParent($this);
+		return $oSubFormBlock;
 	}
 
 	/**
-	 * Get the sub forms.
+	 * Get the children forms.
 	 *
 	 * @return array
 	 */
-	public function GetSubFormBlocks(): array
+	public function GetChildren(): array
 	{
-		return $this->aSubFormBlocks;
+		return $this->aChildrenBlocks;
+	}
+
+	/**
+	 * Return a child block.
+	 *
+	 * @param string $sName name of the block
+	 *
+	 * @return AbstractFormBlock
+	 */
+	public function Get(string $sName): AbstractFormBlock
+	{
+		return $this->aChildrenBlocks[$sName];
 	}
 
 	/**

sources/Forms/Block/DataModel/AttributeChoiceFormBlock.php

@@ -10,8 +10,6 @@ use Combodo\iTop\Forms\Block\Base\ChoiceFormBlock;
 use Combodo\iTop\Forms\Block\FormBlockException;
 use Combodo\iTop\Forms\Block\IO\Format\AttributeIOFormat;
 use Combodo\iTop\Forms\Block\IO\Format\ClassIOFormat;
-use Combodo\iTop\Forms\Block\IO\FormInput;
-use Combodo\iTop\Forms\Block\IO\FormOutput;
 use Combodo\iTop\Forms\Block\IO\Converter\StringToAttributeConverter;
 use Combodo\iTop\Forms\FormType\AttributeFormType;
 use CoreException;
@@ -34,7 +32,7 @@ class AttributeChoiceFormBlock extends ChoiceFormBlock
 	public function InitOptions(): array
 	{
 		$aOptions = parent::InitOptions();
-		$aOptions['placeholder'] = 'Select an attribute...';
+//		$aOptions['placeholder'] = 'Select an attribute...';
 		return $aOptions;
 	}
 
@@ -42,14 +40,14 @@ class AttributeChoiceFormBlock extends ChoiceFormBlock
 	public function InitInputs(): void
 	{
 		parent::InitInputs();
-		$this->AddInput(new FormInput(self::INPUT_CLASS_NAME, ClassIOFormat::class));
+		$this->AddInput(self::INPUT_CLASS_NAME, ClassIOFormat::class);
 	}
 
 	/** @inheritdoc  */
 	public function InitOutputs(): void
 	{
 		parent::InitOutputs();
-		$this->AddOutput(new FormOutput(self::OUTPUT_ATTRIBUTE, AttributeIOFormat::class, new StringToAttributeConverter()));
+		$this->AddOutput(self::OUTPUT_ATTRIBUTE, AttributeIOFormat::class, new StringToAttributeConverter());
 	}
 
 	/** @inheritdoc
@@ -79,9 +77,4 @@ class AttributeChoiceFormBlock extends ChoiceFormBlock
 		return $aOptions;
 	}
 
-	/** @inheritdoc  */
-	public function GetFormType(): string
-	{
-		return AttributeFormType::class;
-	}
 }

sources/Forms/Block/DataModel/AttributeValueChoiceFormBlock.php

@@ -8,12 +8,9 @@ namespace Combodo\iTop\Forms\Block\DataModel;
 
 use Combodo\iTop\Forms\Block\Base\ChoiceFormBlock;
 use Combodo\iTop\Forms\Block\FormBlockException;
-use Combodo\iTop\Forms\Block\IO\Converter\StringToAttributeConverter;
 use Combodo\iTop\Forms\Block\IO\Format\AttributeIOFormat;
 use Combodo\iTop\Forms\Block\IO\Format\ClassIOFormat;
 use Combodo\iTop\Forms\Block\IO\Format\RawFormat;
-use Combodo\iTop\Forms\Block\IO\FormInput;
-use Combodo\iTop\Forms\Block\IO\FormOutput;
 use Combodo\iTop\Forms\FormType\AttributeValueFormType;
 use Exception;
 use MetaModel;
@@ -48,15 +45,15 @@ class AttributeValueChoiceFormBlock extends ChoiceFormBlock
 	public function InitInputs(): void
 	{
 		parent::InitInputs();
-		$this->AddInput(new FormInput(self::INPUT_CLASS_NAME, ClassIOFormat::class));
-		$this->AddInput(new FormInput(self::INPUT_ATTRIBUTE, AttributeIOFormat::class));
+		$this->AddInput(self::INPUT_CLASS_NAME, ClassIOFormat::class);
+		$this->AddInput(self::INPUT_ATTRIBUTE, AttributeIOFormat::class);
 	}
 
 	/** @inheritdoc  */
 	public function InitOutputs(): void
 	{
 		parent::InitOutputs();
-		$this->AddOutput(new FormOutput(self::OUTPUT_VALUE, RawFormat::class));
+		$this->AddOutput(self::OUTPUT_VALUE, RawFormat::class);
 	}
 
 	/** @inheritdoc
@@ -103,10 +100,4 @@ class AttributeValueChoiceFormBlock extends ChoiceFormBlock
 		return $aOptions;
 	}
 
-	/** @inheritdoc  */
-	public function GetFormType(): string
-	{
-		return AttributeValueFormType::class;
-	}
-
 }

sources/Forms/Block/DataModel/OqlFormBlock.php

@@ -8,9 +8,8 @@ namespace Combodo\iTop\Forms\Block\DataModel;
 
 use Combodo\iTop\Forms\Block\Base\TextAreaFormBlock;
 use Combodo\iTop\Forms\Block\IO\Format\ClassIOFormat;
-use Combodo\iTop\Forms\Block\IO\FormOutput;
 use Combodo\iTop\Forms\Block\IO\Converter\OqlToClassConverter;
-use Combodo\iTop\Forms\FormType\OqlFormType;
+use Combodo\iTop\Forms\Block\FormType\OqlFormType;
 
 /**
  * Form block for oql expression.
@@ -32,7 +31,7 @@ class OqlFormBlock extends TextAreaFormBlock
 	public function InitOutputs(): void
 	{
 		parent::InitOutputs();
-		$this->AddOutput(new FormOutput(self::OUTPUT_SELECTED_CLASS, ClassIOFormat::class, new OqlToClassConverter()));
+		$this->AddOutput(self::OUTPUT_SELECTED_CLASS, ClassIOFormat::class, new OqlToClassConverter());
 	}
 
 	/** @inheritdoc  */

sources/Forms/Block/FormType/AttributeFormType.php

@@ -4,7 +4,7 @@
  * @license     http://opensource.org/licenses/AGPL-3.0
  */
 
-namespace Combodo\iTop\Forms\FormType;
+namespace Combodo\iTop\Forms\Block\FormType;
 
 use Symfony\Component\Form\AbstractType;
 

sources/Forms/Block/FormType/AttributeValueFormType.php

@@ -4,7 +4,7 @@
  * @license     http://opensource.org/licenses/AGPL-3.0
  */
 
-namespace Combodo\iTop\Forms\FormType;
+namespace Combodo\iTop\Forms\Block\FormType;
 
 use Symfony\Component\Form\AbstractType;
 

sources/Forms/Block/FormType/ChoiceFormType.php

@@ -4,9 +4,10 @@
  * @license     http://opensource.org/licenses/AGPL-3.0
  */
 
-namespace Combodo\iTop\Forms\FormType;
+namespace Combodo\iTop\Forms\Block\FormType;
 
 use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\Event\PreSetDataEvent;
 use Symfony\Component\Form\Event\PreSubmitEvent;
 use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
 use Symfony\Component\Form\FormBuilderInterface;
@@ -27,6 +28,20 @@ class ChoiceFormType extends AbstractType
 	/** @inheritdoc  */
 	public function buildForm(FormBuilderInterface $builder, array $options): void
 	{
+		// on preset data
+		$builder->addEventListener(FormEvents::PRE_SET_DATA, function (PreSetDataEvent $event) use ($options){
+
+			if($options['multiple'] === false && $options['required'] === true) {
+				if ($event->getData() === null) {
+					$FirstElement = array_shift($options['choices']);
+					if($FirstElement !== null){
+						$event->setData($FirstElement);
+					}
+				}
+			}
+
+		});
+
 		// on pre submit
 		$builder->addEventListener(FormEvents::PRE_SUBMIT, function (PreSubmitEvent $event) use ($options){
 
@@ -48,7 +63,7 @@ class ChoiceFormType extends AbstractType
 	private function CheckValue($oValue, $options): bool
 	{
 		// Check multi selection values
-		if(is_array($oValue)){
+		if($options['multiple'] === true){
 			foreach ($oValue as $v){
 				if(!in_array($v, $options['choices'])){
 					return false;

sources/Forms/Block/FormType/CollectionFormType.php

@@ -0,0 +1,42 @@
+<?php
+/*
+ * @copyright   Copyright (C) 2010-2025 Combodo SARL
+ * @license     http://opensource.org/licenses/AGPL-3.0
+ */
+
+namespace Combodo\iTop\Forms\Block\FormType;
+
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\Event\PreSetDataEvent;
+use Symfony\Component\Form\Event\PreSubmitEvent;
+use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
+use Symfony\Component\Form\Extension\Core\Type\CollectionType;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\Form\FormError;
+use Symfony\Component\Form\FormEvents;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+
+/**
+ *
+ */
+class CollectionFormType extends AbstractType
+{
+	/** @inheritdoc  */
+	public function getParent(): string
+	{
+		return CollectionType::class;
+	}
+
+
+	public function configureOptions(OptionsResolver $resolver)
+	{
+		parent::configureOptions($resolver);
+
+		$resolver->setDefined([
+			'block_entry_type',
+			'block_entry_options',
+		]);
+	}
+
+
+}

sources/Forms/Block/FormType/OqlFormType.php

@@ -4,7 +4,7 @@
  * @license     http://opensource.org/licenses/AGPL-3.0
  */
 
-namespace Combodo\iTop\Forms\FormType;
+namespace Combodo\iTop\Forms\Block\FormType;
 
 use Combodo\iTop\Forms\Block\IO\Converter\OqlToClassConverter;
 use Exception;

sources/Forms/Block/IO/AbstractFormIO.php

@@ -9,6 +9,9 @@ namespace Combodo\iTop\Forms\Block\IO;
 use Combodo\iTop\Forms\Block\AbstractFormBlock;
 use Symfony\Component\Form\FormEvents;
 
+/**
+ *
+ */
 class AbstractFormIO
 {
 	/** @var AbstractFormBlock The owner block */
@@ -23,11 +26,17 @@ class AbstractFormIO
 	/** @var array Stored values */
 	private array $aValues = [];
 
+	/** @var FormBinding|null */
+	private FormBinding|null $oBinding = null;
+
+	/** @var array bindings pointing to other inputs */
+	protected array $aBindingsToInputs = [];
+
 	/**
 	 * Constructor.
 	 *
-	 * @param string $sName
-	 * @param string $sType
+	 * @param string $sName name of the IO
+	 * @param string $sType type of the IO
 	 */
 	public function __construct(string $sName, string $sType)
 	{
@@ -35,6 +44,29 @@ class AbstractFormIO
 		$this->sType = $sType;
 	}
 
+	/**
+	 * Get the owner block.
+	 *
+	 * @return AbstractFormBlock
+	 */
+	public function GetOwnerBlock(): AbstractFormBlock
+	{
+		return $this->oOwnerBlock;
+	}
+
+	/**
+	 * Set the owner block.
+	 *
+	 * @param AbstractFormBlock $oOwnerBlock
+	 *
+	 * @return $this
+	 */
+	public function SetOwnerBlock(AbstractFormBlock $oOwnerBlock): self
+	{
+		$this->oOwnerBlock = $oOwnerBlock;
+		return $this;
+	}
+
 	/**
 	 * Get the IO name.
 	 *
@@ -68,29 +100,6 @@ class AbstractFormIO
 		return $this->sType;
 	}
 
-	/**
-	 * Get the owner block.
-	 *
-	 * @return AbstractFormBlock
-	 */
-	public function GetOwnerBlock(): AbstractFormBlock
-	{
-		return $this->oOwnerBlock;
-	}
-
-	/**
-	 * Set the owner block.
-	 *
-	 * @param AbstractFormBlock $oOwnerBlock
-	 *
-	 * @return $this
-	 */
-	public function SetOwnerBlock(AbstractFormBlock $oOwnerBlock): self
-	{
-		$this->oOwnerBlock = $oOwnerBlock;
-		return $this;
-	}
-
 	/**
 	 * Set the IO value.
 	 *
@@ -170,5 +179,65 @@ class AbstractFormIO
 		return null;
 	}
 
+	/**
+	 * Bind to input.
+	 *
+	 * @param FormInput $oDestinationIO
+	 *
+	 * @return FormBinding
+	 */
+	public function BindToInput(FormInput $oDestinationIO): FormBinding
+	{
+		$oBinding = new FormBinding($this, $oDestinationIO);
+
+		$this->aBindingsToInputs[] = $oBinding;
+
+		$oDestinationIO->Attach($oBinding);
+
+		return $oBinding;
+	}
+
+	/**
+	 * Attach a binding.
+	 *
+	 * @param FormBinding $oFormBinding
+	 *
+	 * @return void
+	 */
+	public function Attach(FormBinding $oFormBinding)
+	{
+		$this->oBinding = $oFormBinding;
+	}
+
+	/**
+	 * Indicate IO is bound.
+	 *
+	 * @return bool
+	 */
+	public function IsBound(): bool
+	{
+		return $this->oBinding !== null;
+	}
+
+	/**
+	 * Return the binding.
+	 *
+	 * @return FormBinding|null
+	 */
+	public function GetBinding(): ?FormBinding
+	{
+		return $this->oBinding;
+	}
+
+	/**
+	 * Indicated inputs data is ready.
+	 *
+	 * @return bool
+	 */
+	public function IsDataReady(): bool
+	{
+		return $this->HasValue();
+	}
+
 
 }

sources/Forms/Block/IO/FormBinding.php

@@ -6,13 +6,25 @@
 
 namespace Combodo\iTop\Forms\Block\IO;
 
+/**
+ *
+ */
 class FormBinding
 {
+	/**
+	 * @param AbstractFormIO $oSourceIO
+	 * @param AbstractFormIO $oDestinationIO
+	 */
 	public function __construct(public readonly AbstractFormIO $oSourceIO, public readonly AbstractFormIO $oDestinationIO)
 	{
 
 	}
 
+	/**
+	 * Propagate binding values.
+	 *
+	 * @return void
+	 */
 	public function PropagateValues(): void
 	{
 		$this->oDestinationIO->SetValues($this->oSourceIO->GetValues());

sources/Forms/Block/IO/FormInput.php

@@ -6,70 +6,27 @@
 
 namespace Combodo\iTop\Forms\Block\IO;
 
-use Combodo\iTop\Forms\Block\FormBlockIOException;
-
+/**
+ *
+ */
 class FormInput extends AbstractFormIO
 {
-	private FormBinding|null $oBinding = null;
-
-	private array $aBindingsToInputs = [];
-
 	/**
-	 * @throws FormBlockIOException
+	 * @return bool
 	 */
-	public function BindFromOutput(FormOutput $oSourceIO): void
-	{
-		if($this->GetDataType() !== $oSourceIO->GetDataType()){
-			throw new FormBlockIOException('Cannot connect input types incompatibles ' . $this->GetName() . ' from ' . $oSourceIO->GetOwnerBlock()->GetName() . ' ' . $oSourceIO->GetName());
-		}
-
-		$this->oBinding = $oSourceIO->BindToInput($this);
-	}
-
-	/**
-	 * @throws FormBlockIOException
-	 */
-	public function BindFromInput(FormInput $oSourceIO): void
-	{
-		if($this->GetDataType() !== $oSourceIO->GetDataType()){
-			throw new FormBlockIOException('Cannot connect input types incompatibles ' . $this->GetName() . ' from ' . $oSourceIO->GetOwnerBlock()->GetName() . ' ' . $oSourceIO->GetName());
-		}
-
-		$this->oBinding = $oSourceIO->BindToInput($this);
-	}
-
-	/**
-	 * @throws FormBlockIOException
-	 */
-	public function BindToInput(FormInput $oDestinationIO): FormBinding
-	{
-		if($this->GetDataType() !== $oDestinationIO->GetDataType()){
-			throw new FormBlockIOException('Cannot connect input types incompatibles ' . $this->GetName() . ' from ' . $oDestinationIO->GetOwnerBlock()->GetName() . ' ' . $oDestinationIO->GetName());
-		}
-
-		$oBinding = new FormBinding($this, $oDestinationIO);
-
-		$this->aBindingsToInputs[] = $oBinding;
-
-		return $oBinding;
-	}
-
-
-	public function GetBinding(): ?FormBinding
-	{
-		return $this->oBinding;
-	}
-
 	public function IsDataReady(): bool
 	{
 		return $this->HasValue();
 	}
 
-	public function IsBound(): bool
-	{
-		return $this->oBinding !== null;
-	}
 
+	/**
+	 * Set the values of the input.
+	 *
+	 * @param array $aValues
+	 *
+	 * @return AbstractFormIO
+	 */
 	public function SetValues(array $aValues): AbstractFormIO
 	{
 		parent::SetValues($aValues);

sources/Forms/Block/IO/FormOutput.php

@@ -6,18 +6,16 @@
 
 namespace Combodo\iTop\Forms\Block\IO;
 
-use Combodo\iTop\Forms\Block\FormBlockIOException;
 use Combodo\iTop\Forms\Block\IO\Converter\AbstractConverter;
 
+/**
+ *
+ */
 class FormOutput extends AbstractFormIO
 {
 	/** @var AbstractConverter|null  */
 	private null|AbstractConverter $oConverter;
 
-	private FormBinding|null $oBinding = null;
-
-	/** @var array  */
-	private array $aBindingsToInputs = [];
 
 	/** @var array  */
 	private array $aBindingsToOutputs = [];
@@ -84,21 +82,7 @@ class FormOutput extends AbstractFormIO
 		}
 	}
 
-	/**
-	 * Bind to input.
-	 *
-	 * @param FormInput $oDestinationIO
-	 *
-	 * @return FormBinding
-	 */
-	public function BindToInput(FormInput $oDestinationIO): FormBinding
-	{
-		$oBinding = new FormBinding($this, $oDestinationIO);
 
-		$this->aBindingsToInputs[] = $oBinding;
-
-		return $oBinding;
-	}
 
 	/**
 	 * Bind to output.
@@ -113,30 +97,12 @@ class FormOutput extends AbstractFormIO
 
 		$this->aBindingsToOutputs[] = $oBinding;
 
+		$oDestinationIO->Attach($oBinding);
+
 		return $oBinding;
 	}
 
-	public function GetBinding(): ?FormBinding
-	{
-		return $this->oBinding;
-	}
 
-	/**
-	 * @throws FormBlockIOException
-	 */
-	public function BindFromOutput(FormOutput $oSourceIO): void
-	{
-		if($this->GetDataType() !== $oSourceIO->GetDataType()){
-			throw new FormBlockIOException('Cannot connect input types incompatibles ' . $this->GetName() . ' from ' . $oSourceIO->GetOwnerBlock()->GetName() . ' ' . $oSourceIO->GetName());
-		}
-
-		$this->oBinding = $oSourceIO->BindToOutput($this);
-	}
-
-	public function IsBound(): bool
-	{
-		return $this->oBinding !== null;
-	}
 
 	/**
 	 * Get the bindings.

sources/Forms/FormBuilder/DependencyHandler.php

@@ -40,7 +40,7 @@ class DependencyHandler
 	public function __construct(private readonly string $sName, private readonly AbstractFormBlock $oFormBlock, private readonly FormBuilder $oFormBuilder, private readonly array $aSubBlocks, private readonly array $aDependentBlocks)
 	{
 		// dependencies map
-		$this->oDependenciesMap = new DependencyMap($this->aDependentBlocks);
+		$this->oDependenciesMap = new DependencyMap($aDependentBlocks);
 
 		// Add form ready listener
 		$this->AddFormReadyListener();
@@ -48,6 +48,7 @@ class DependencyHandler
 		// Check the dependencies
 		$this->CheckDependencies($this->oFormBuilder);
 
+		// Store the dependency handler
 		self::$aDependencyHandlers[] = $this;
 	}
 
@@ -86,7 +87,7 @@ class DependencyHandler
 					'builder' => $this->oFormBuilder->getName(),
 					'event' => 'form.listen',
 					'form' => $sOutputBlockName,
-					'value' => null
+					'value' => 'NA'
 				];
 
 				// Listen the output block POST_SET_DATA & POST_SUBMIT
@@ -144,7 +145,7 @@ class DependencyHandler
 		foreach ($this->aDependentBlocks as $qBlockName => $oDependentBlock)
 		{
 			// When dependencies met, add the dependent field if not already done
-			if(!$oDependentBlock->IsAdded() && $oDependentBlock->IsInputsReady()) {
+			if(!$oDependentBlock->IsAdded() && $oDependentBlock->IsInputsDataReady()) {
 
 				// Get the dependent field options
 				$aOptions = $oDependentBlock->UpdateOptions();
@@ -164,7 +165,15 @@ class DependencyHandler
 						'builder' => $this->oFormBuilder->getName(),
 						'event' => 'form.add',
 						'form' => $oDependentBlock->getName(),
-						'value' => null
+						'value' => 'NA'
+					];
+
+					if(array_key_exists('builder_listener', $aOptions))
+					$this->aDebugData[] = [
+						'builder' => $this->oFormBuilder->getName(),
+						'event' => 'form.listen',
+						'form' => $oDependentBlock->getName(),
+						'value' => 'NA'
 					];
 
 					// Mark the dependency as added
@@ -177,7 +186,7 @@ class DependencyHandler
 
 			}
 
-			if($oDependentBlock->IsAdded() && !$oDependentBlock->IsInputsReady()) {
+			if($oDependentBlock->IsAdded() && !$oDependentBlock->IsInputsDataReady()) {
 				$oForm->add($oDependentBlock->GetName(), HiddenType::class, [
 					'form_block' => $oDependentBlock,
 					'prevent_form_build' => true,

sources/Forms/FormBuilder/DependencyMap.php

@@ -47,7 +47,7 @@ class DependencyMap
 		/** Iterate throw blocks with dependencies... @var FormBlock $oDependentBlock */
 		foreach ($this->aDependentBlocks as $sBlockName => $oDependentBlock) {
 
-			/** Iterate throw the block inputs connections... @var FormBinding $oBinding**/
+			/** Iterate throw the block inputs bindings... @var FormBinding $oBinding**/
 			foreach ($oDependentBlock->GetInputsBindings() as $oBinding) {
 
 				// Output to inputs map
@@ -60,11 +60,6 @@ class DependencyMap
 				&& $oBinding->oDestinationIO instanceof FormInput){
 					$this->AddBindingToMap($this->aInputToInputsMap, $oBinding);
 				}
-				// Output to outputs map
-				if($oBinding->oSourceIO instanceof FormOutput
-				&& $oBinding->oDestinationIO instanceof FormOutput){
-					$this->AddBindingToMap($this->aOutputToOutputsMap, $oBinding);
-				}
 
 			}
 

sources/Forms/FormBuilder/FormBuilder.php

@@ -67,7 +67,7 @@ class FormBuilder implements FormBuilderInterface, \IteratorAggregate
 
 		$aDependentBlocks = [];
 		/** Iterate throw the form sub blocks... @var FormBlock $oSubFormBlock */
-		foreach ($oFormBlock->GetSubFormBlocks() as $oSubFormBlock) {
+		foreach ($oFormBlock->GetChildren() as $oSubFormBlock) {
 
 			// Add to the sub blocks array
 			$this->aSubFormBlocks[$oSubFormBlock->getName()] = $oSubFormBlock;
@@ -98,8 +98,8 @@ class FormBuilder implements FormBuilderInterface, \IteratorAggregate
 	private function HandleSubBlock(AbstractFormBlock $oSubFormBlock): bool
 	{
 
-		// Has at least one bounded input ?
-		if ($oSubFormBlock->HasAtLeastOneBoundInput()) {
+		// Has dependencies blocks
+		if ($oSubFormBlock->HasDependenciesBlocks()) {
 
 			// Insert a hidden type to save the place
 			$this->builder->add($oSubFormBlock->GetName(), HiddenType::class, [

sources/Forms/FormBuilder/FormTypeExtension.php

@@ -57,7 +57,7 @@ class FormTypeExtension extends AbstractTypeExtension
 			$view->vars['form_block'] = $options['form_block'];
 
 			$oFormBlock = $options['form_block'];
-			$view->vars['trigger_form_submit_on_modify'] = $oFormBlock->HasAtLeastOneBoundOutput();
+			$view->vars['trigger_form_submit_on_modify'] = $oFormBlock->ImpactDependentsBlocks();
 		}
 
 	}

sources/Forms/FormsException.php

@@ -6,10 +6,11 @@
 
 namespace Combodo\iTop\Forms;
 
+use Exception;
 use IssueLog;
 use Throwable;
 
-class FormsException extends \Exception
+class FormsException extends Exception
 {
 	public function __construct(string $message = '', int $code = 0, ?Throwable $previous = null, array $aContext = [])
 	{