N°8771 - Add Symfony form component to iTop core

- IO debug

css/backoffice/components/_form.scss

@@ -50,3 +50,7 @@
 form[aria-busy="true"] {
   opacity: .5;
 }
+
+.ibo-field legend{
+  margin-top: 24px;
+}

lib/composer/autoload_classmap.php

@@ -475,22 +475,24 @@ 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\\StringFormBlock' => $baseDir . '/sources/Forms/Block/Base/StringFormBlock.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',
     'Combodo\\iTop\\Forms\\Block\\DataModel\\AttributeChoiceFormBlock' => $baseDir . '/sources/Forms/Block/DataModel/AttributeChoiceFormBlock.php',
     'Combodo\\iTop\\Forms\\Block\\DataModel\\AttributeValueChoiceFormBlock' => $baseDir . '/sources/Forms/Block/DataModel/AttributeValueChoiceFormBlock.php',
     'Combodo\\iTop\\Forms\\Block\\DataModel\\OqlFormBlock' => $baseDir . '/sources/Forms/Block/DataModel/OqlFormBlock.php',
-    'Combodo\\iTop\\Forms\\Block\\FormBlock' => $baseDir . '/sources/Forms/Block/FormBlock.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\\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',
+    'Combodo\\iTop\\Forms\\Block\\IO\\Converter\\StringToAttributeConverter' => $baseDir . '/sources/Forms/Block/IO/Converter/StringToAttributeConverter.php',
     'Combodo\\iTop\\Forms\\Block\\IO\\FormBinding' => $baseDir . '/sources/Forms/Block/IO/FormBinding.php',
     'Combodo\\iTop\\Forms\\Block\\IO\\FormInput' => $baseDir . '/sources/Forms/Block/IO/FormInput.php',
     'Combodo\\iTop\\Forms\\Block\\IO\\FormOutput' => $baseDir . '/sources/Forms/Block/IO/FormOutput.php',
     'Combodo\\iTop\\Forms\\Block\\IO\\Format\\AttributeIOFormat' => $baseDir . '/sources/Forms/Block/IO/Format/AttributeIOFormat.php',
     'Combodo\\iTop\\Forms\\Block\\IO\\Format\\ClassIOFormat' => $baseDir . '/sources/Forms/Block/IO/Format/ClassIOFormat.php',
-    'Combodo\\iTop\\Forms\\Converter\\AbstractOutputConverter' => $baseDir . '/sources/Forms/Converter/AbstractOutputConverter.php',
-    'Combodo\\iTop\\Forms\\Converter\\OqlToClassConverter' => $baseDir . '/sources/Forms/Converter/OqlToClassConverter.php',
-    'Combodo\\iTop\\Forms\\Converter\\StringToAttributeConverter' => $baseDir . '/sources/Forms/Converter/StringToAttributeConverter.php',
+    'Combodo\\iTop\\Forms\\Block\\IO\\Format\\RawFormat' => $baseDir . '/sources/Forms/Block/IO/Format/RawFormat.php',
     'Combodo\\iTop\\Forms\\FormBuilder\\DependencyHandler' => $baseDir . '/sources/Forms/FormBuilder/DependencyHandler.php',
     'Combodo\\iTop\\Forms\\FormBuilder\\DependencyMap' => $baseDir . '/sources/Forms/FormBuilder/DependencyMap.php',
     'Combodo\\iTop\\Forms\\FormBuilder\\FormBuilder' => $baseDir . '/sources/Forms/FormBuilder/FormBuilder.php',
@@ -499,9 +501,10 @@ 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\\AttributeChoiceType' => $baseDir . '/sources/Forms/FormType/AttributeChoiceType.php',
-    'Combodo\\iTop\\Forms\\FormType\\AttributeValueChoiceType' => $baseDir . '/sources/Forms/FormType/AttributeValueChoiceType.php',
-    'Combodo\\iTop\\Forms\\FormType\\OqlType' => $baseDir . '/sources/Forms/FormType/OqlType.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

@@ -856,22 +856,24 @@ 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\\StringFormBlock' => __DIR__ . '/../..' . '/sources/Forms/Block/Base/StringFormBlock.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',
         'Combodo\\iTop\\Forms\\Block\\DataModel\\AttributeChoiceFormBlock' => __DIR__ . '/../..' . '/sources/Forms/Block/DataModel/AttributeChoiceFormBlock.php',
         'Combodo\\iTop\\Forms\\Block\\DataModel\\AttributeValueChoiceFormBlock' => __DIR__ . '/../..' . '/sources/Forms/Block/DataModel/AttributeValueChoiceFormBlock.php',
         'Combodo\\iTop\\Forms\\Block\\DataModel\\OqlFormBlock' => __DIR__ . '/../..' . '/sources/Forms/Block/DataModel/OqlFormBlock.php',
-        'Combodo\\iTop\\Forms\\Block\\FormBlock' => __DIR__ . '/../..' . '/sources/Forms/Block/FormBlock.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\\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',
+        'Combodo\\iTop\\Forms\\Block\\IO\\Converter\\StringToAttributeConverter' => __DIR__ . '/../..' . '/sources/Forms/Block/IO/Converter/StringToAttributeConverter.php',
         'Combodo\\iTop\\Forms\\Block\\IO\\FormBinding' => __DIR__ . '/../..' . '/sources/Forms/Block/IO/FormBinding.php',
         'Combodo\\iTop\\Forms\\Block\\IO\\FormInput' => __DIR__ . '/../..' . '/sources/Forms/Block/IO/FormInput.php',
         'Combodo\\iTop\\Forms\\Block\\IO\\FormOutput' => __DIR__ . '/../..' . '/sources/Forms/Block/IO/FormOutput.php',
         'Combodo\\iTop\\Forms\\Block\\IO\\Format\\AttributeIOFormat' => __DIR__ . '/../..' . '/sources/Forms/Block/IO/Format/AttributeIOFormat.php',
         'Combodo\\iTop\\Forms\\Block\\IO\\Format\\ClassIOFormat' => __DIR__ . '/../..' . '/sources/Forms/Block/IO/Format/ClassIOFormat.php',
-        'Combodo\\iTop\\Forms\\Converter\\AbstractOutputConverter' => __DIR__ . '/../..' . '/sources/Forms/Converter/AbstractOutputConverter.php',
-        'Combodo\\iTop\\Forms\\Converter\\OqlToClassConverter' => __DIR__ . '/../..' . '/sources/Forms/Converter/OqlToClassConverter.php',
-        'Combodo\\iTop\\Forms\\Converter\\StringToAttributeConverter' => __DIR__ . '/../..' . '/sources/Forms/Converter/StringToAttributeConverter.php',
+        'Combodo\\iTop\\Forms\\Block\\IO\\Format\\RawFormat' => __DIR__ . '/../..' . '/sources/Forms/Block/IO/Format/RawFormat.php',
         'Combodo\\iTop\\Forms\\FormBuilder\\DependencyHandler' => __DIR__ . '/../..' . '/sources/Forms/FormBuilder/DependencyHandler.php',
         'Combodo\\iTop\\Forms\\FormBuilder\\DependencyMap' => __DIR__ . '/../..' . '/sources/Forms/FormBuilder/DependencyMap.php',
         'Combodo\\iTop\\Forms\\FormBuilder\\FormBuilder' => __DIR__ . '/../..' . '/sources/Forms/FormBuilder/FormBuilder.php',
@@ -880,9 +882,10 @@ 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\\AttributeChoiceType' => __DIR__ . '/../..' . '/sources/Forms/FormType/AttributeChoiceType.php',
-        'Combodo\\iTop\\Forms\\FormType\\AttributeValueChoiceType' => __DIR__ . '/../..' . '/sources/Forms/FormType/AttributeValueChoiceType.php',
-        'Combodo\\iTop\\Forms\\FormType\\OqlType' => __DIR__ . '/../..' . '/sources/Forms/FormType/OqlType.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

@@ -8,6 +8,8 @@ namespace Combodo\iTop\Forms\Block;
 
 use Combodo\iTop\Forms\Block\IO\FormInput;
 use Combodo\iTop\Forms\Block\IO\FormOutput;
+use IssueLog;
+use Symfony\Component\Filesystem\Exception\IOException;
 
 /**
  * Abstract form block.
@@ -19,15 +21,6 @@ use Combodo\iTop\Forms\Block\IO\FormOutput;
  */
 abstract class AbstractFormBlock
 {
-	/** @var string form block name */
-	private string $sName;
-
-	/** @var array form block options */
-	private array $aOptions = [];
-
-	/** @var array form sub blocks */
-	private array $aSubFormBlocks = [];
-
 	/** @var array form block inputs */
 	private array $aFormInputs = [];
 
@@ -37,26 +30,40 @@ abstract class AbstractFormBlock
 	/** @var bool flag */
 	private bool $bIsAdded = false;
 
+	/**
+	 * Return the form type.
+	 *
+	 * @return string
+	 */
+	abstract public function GetFormType(): string;
+
+	/**
+	 * Initialize options.
+	 *
+	 * @return array
+	 */
+	abstract public function InitOptions(): array;
+
 	/**
 	 * Constructor.
 	 *
 	 * @param string $sName
 	 * @param array $aOptions
 	 */
-	public function __construct(string $sName, array $aOptions = [])
+	public function __construct(private readonly string $sName, private array $aOptions = [])
 	{
-		$this->sName = $sName;
-		$this->aOptions = $aOptions;
-
+		// Attach the form block
 		$this->aOptions['form_block'] = $this;
 
-		$this->InitInputs();
-		$this->InitOutputs();
+		// Compute options
 		$this->aOptions = array_merge($this->aOptions, $this->InitOptions());
-		$this->BuildForm();
-	}
 
-	abstract protected function BuildForm();
+		// Initialize block inputs
+		$this->InitInputs();
+
+		// Initialize block outputs
+		$this->InitOutputs();
+	}
 
 	/**
 	 * Return the form block name.
@@ -91,30 +98,7 @@ abstract class AbstractFormBlock
 	}
 
 	/**
-	 * Add a sub form.
-	 *
-	 * @param AbstractFormBlock $oSubFormBlock
-	 *
-	 * @return $this
-	 */
-	public function AddSubFormBlock(AbstractFormBlock $oSubFormBlock): AbstractFormBlock
-	{
-		$this->aSubFormBlocks[] = $oSubFormBlock;
-		return $this;
-	}
-
-	/**
-	 * Get the sub forms.
-	 *
-	 * @return array
-	 */
-	public function GetSubFormBlocks(): array
-	{
-		return $this->aSubFormBlocks;
-	}
-
-	/**
-	 * Add an input declaration.
+	 * Add an input.
 	 *
 	 * @param FormInput $oFormInput
 	 *
@@ -127,7 +111,7 @@ abstract class AbstractFormBlock
 	}
 
 	/**
-	 * Get an input declaration.
+	 * Get an input.
 	 *
 	 * @param string $sName
 	 *
@@ -144,7 +128,7 @@ abstract class AbstractFormBlock
 	}
 
 	/**
-	 * Add an output declaration.
+	 * Add an output.
 	 *
 	 * @param FormOutput $oFormOutput
 	 *
@@ -157,7 +141,7 @@ abstract class AbstractFormBlock
 	}
 
 	/**
-	 * Get an output declaration.
+	 * Get an output.
 	 *
 	 * @param string $sName
 	 *
@@ -173,6 +157,21 @@ abstract class AbstractFormBlock
 		return $this->aFormOutputs[$sName];
 	}
 
+	/**
+	 * Return the inputs.
+	 *
+	 * @return array
+	 */
+	public function GetInputs(): array
+	{
+		return $this->aFormInputs;
+	}
+
+	/**
+	 * Return the outputs.
+	 *
+	 * @return array
+	 */
 	public function GetOutputs(): array
 	{
 		return $this->aFormOutputs;
@@ -182,31 +181,66 @@ abstract class AbstractFormBlock
 	 * Attach an input to a block output.
 	 *
 	 * @param string $sInputName
-	 * @param FormBlock $oOutputBlock
+	 * @param AbstractFormBlock $oOutputBlock
 	 * @param string $sOutputName
 	 *
 	 * @return $this
 	 * @throws FormBlockException
+	 * @throws FormBlockIOException
 	 */
-	public function DependsOn(string $sInputName, FormBlock $oOutputBlock, string $sOutputName): AbstractFormBlock
+	public function DependsOnBlockOutput(string $sInputName, AbstractFormBlock $oOutputBlock, string $sOutputName): AbstractFormBlock
 	{
 		$oFormInput = $this->GetInput($sInputName);
 		$oFormOutput = $oOutputBlock->GetOutput($sOutputName);
-		$oFormInput->Bind($oFormOutput);
+		$oFormInput->BindFromOutput($oFormOutput);
 
 		return $this;
 	}
 
-	public function DependsOnParent(string $sInputName, FormBlock $oParentBlock, string $sParentInputName): AbstractFormBlock
+	/**
+	 * Attach an input to a parent block input.
+	 *
+	 * @param string $sInputName
+	 * @param AbstractFormBlock $oParentBlock
+	 * @param string $sParentInputName
+	 *
+	 * @return $this
+	 * @throws FormBlockException
+	 * @throws FormBlockIOException
+	 */
+	public function DependsOnParentBlockInput(string $sInputName, AbstractFormBlock $oParentBlock, string $sParentInputName): AbstractFormBlock
 	{
 		$oFormInput = $this->GetInput($sInputName);
-		$oParentFormInput = $oParentBlock->GetInput($sParentInputName);
-		$oFormInput->Bind($oParentFormInput);
+		$oParentFormInput = $oParentBlock->GetInput($sInputName);
+		$oFormInput->BindFromInput($oParentFormInput);
 
 		return $this;
 	}
 
-	public function HasConnections(): bool
+	/**
+	 * Attach an output to a parent block outpu.
+	 *
+	 * @param string $sOutputName
+	 * @param AbstractFormBlock $oParentBlock
+	 * @param string $sParentInputName
+	 *
+	 * @return $this
+	 * @throws FormBlockException
+	 * @throws FormBlockIOException
+	 */
+	public function BindOutputToParentBlockOutput(string $sOutputName, AbstractFormBlock $oParentBlock, string $sParentOutputName): AbstractFormBlock
+	{
+		$oFormOutput = $this->GetOutput($sOutputName);
+		$oParentFormOutput = $oParentBlock->GetOutput($sParentOutputName);
+		$oParentFormOutput->BindFromOutput($oFormOutput);
+
+		return $this;
+	}
+
+	/**
+	 * @return bool
+	 */
+	public function HasAtLeastOneBoundInput(): bool
 	{
 		foreach ($this->aFormInputs as $oFormInput) {
 			if ($oFormInput->IsBound()) {
@@ -216,6 +250,23 @@ abstract class AbstractFormBlock
 		return false;
 	}
 
+	/**
+	 * @return bool
+	 */
+	public function HasAtLeastOneBoundOutput(): bool
+	{
+		/** @var FormOutput $oFormOutput */
+		foreach ($this->aFormOutputs as $oFormOutput) {
+			if (count($oFormOutput->GetBindings()) > 0) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+	/**
+	 * @return array
+	 */
 	public function GetInputsBindings(): array
 	{
 		$aBindings = [];
@@ -229,11 +280,30 @@ abstract class AbstractFormBlock
 		return $aBindings;
 	}
 
-	public function IsInputsReady(string $sEventType): bool
+	/**
+	 * @return array
+	 */
+	public function GetOutputBindings(): array
+	{
+		$aBindings = [];
+
+		/** @var FormInput $oFormInput */
+		foreach ($this->aFormOutputs as $oFormOutput) {
+			if ($oFormOutput->IsBound()) {
+				$aBindings[$oFormOutput->GetName()] = $oFormOutput->GetBinding();
+			}
+		}
+		return $aBindings;
+	}
+
+	/**
+	 * @return bool
+	 */
+	public function IsInputsReady(): bool
 	{
 		foreach ($this->aFormInputs as $oFormInput) {
 			if ($oFormInput->IsBound()) {
-				if(!$oFormInput->IsDataReady($sEventType)) {
+				if(!$oFormInput->IsDataReady()) {
 					return false;
 				}
 			}
@@ -242,41 +312,84 @@ abstract class AbstractFormBlock
 		return true;
 	}
 
+	/**
+	 * @return bool
+	 */
 	public function IsAdded(): bool
 	{
 		return $this->bIsAdded;
 	}
 
+	/**
+	 * @param bool $bIsAdded
+	 *
+	 * @return void
+	 */
 	public function SetAdded(bool $bIsAdded): void
 	{
 		$this->bIsAdded = $bIsAdded;
 	}
 
 	/**
-	 * Return the form type.
+	 * @param string $sEventType
+	 * @param mixed $oData
 	 *
-	 * @return string
+	 * @return void
 	 */
-	abstract public function GetFormType(): string;
+	public function ComputeOutputs(string $sEventType, mixed $oData): void
+	{
+		/** Iterate throw output @var FormOutput $oFormOutput */
+		foreach ($this->aFormOutputs as $oFormOutput) {
+
+			// Compute the output value
+			try{
+				$oFormOutput->ComputeValue($sEventType, $oData);
+			}
+			catch(IOException $oException){
+				IssueLog::Exception(sprintf('Unable to compute values for output %s of block %s', $oFormOutput->GetName(), $this->GetName()), $oException);
+			}
+
+		}
+	}
+
+	/**
+	 * Propagate inputs values.
+	 *
+	 * @return void
+	 */
+	public function PropagateInputsValues(): void
+	{
+		foreach ($this->aFormInputs as $oFormInput) {
+			$oFormInput->PropagateBindingsValues();
+		}
+	}
 
 	/**
 	 * Initialize inputs.
 	 *
 	 * @return void
 	 */
-	abstract public function InitInputs(): void;
+	public function InitInputs(): void
+	{
+
+	}
 
 	/**
 	 * Initialize outputs.
 	 *
 	 * @return void
 	 */
-	abstract public function InitOutputs(): void;
+	public function InitOutputs()
+	{
+
+	}
+
 
 	/**
-	 * Initialize options.
-	 *
-	 * @return array
+	 * @return true
 	 */
-	abstract public function InitOptions(): array;
+	public function AllowAdd(): bool
+	{
+		return true;
+	}
 }

sources/Forms/Block/Base/ChoiceFormBlock.php

@@ -6,18 +6,28 @@
 
 namespace Combodo\iTop\Forms\Block\Base;
 
-use Combodo\iTop\Forms\Block\FormBlock;
+use Combodo\iTop\Forms\Block\AbstractFormBlock;
 use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
 
 /**
  * Form block for choices.
  *
  */
-class ChoiceFormBlock extends FormBlock
+class ChoiceFormBlock extends AbstractFormBlock
 {
 	/** @inheritdoc  */
 	public function GetFormType(): string
 	{
 		return ChoiceType::class;
 	}
+
+	/** @inheritdoc  */
+	public function InitOptions(): array
+	{
+		return [
+			// debug purpose
+			'required' => false,
+			'placeholder' => 'Select an element...',
+		];
+	}
 }

sources/Forms/Block/Base/FormBlock.php

@@ -0,0 +1,82 @@
+<?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\FormType;
+
+/**
+ * Complex form type.
+ *
+ */
+class FormBlock extends AbstractFormBlock
+{
+	/** @var array form sub blocks */
+	private array $aSubFormBlocks = [];
+
+	/**
+	 * Constructor.
+	 *
+	 * @param string $sName
+	 * @param array $aOptions
+	 */
+	public function __construct(string $sName, array $aOptions = [])
+	{
+		parent::__construct($sName, $aOptions);
+
+		// Build the form
+		$this->BuildForm();
+	}
+
+	/** @inheritdoc  */
+	public function GetFormType(): string
+	{
+		return FormType::class;
+	}
+
+	/** @inheritdoc  */
+	public function InitOptions(): array
+	{
+		return [
+			'compound' => true
+		];
+	}
+
+	/**
+	 * Add a sub form.
+	 *
+	 * @param AbstractFormBlock $oSubFormBlock
+	 *
+	 * @return $this
+	 */
+	public function AddSubFormBlock(AbstractFormBlock $oSubFormBlock): AbstractFormBlock
+	{
+		$this->aSubFormBlocks[] = $oSubFormBlock;
+		return $this;
+	}
+
+	/**
+	 * Get the sub forms.
+	 *
+	 * @return array
+	 */
+	public function GetSubFormBlocks(): array
+	{
+		return $this->aSubFormBlocks;
+	}
+
+	/**
+	 * Build the form.
+	 *
+	 * @return void
+	 */
+	protected function BuildForm(): void
+	{
+
+	}
+
+}

sources/Forms/Block/Base/TextAreaFormBlock.php

@@ -0,0 +1,29 @@
+<?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\TextareaType;
+
+/**
+ * Form block for text area.
+ *
+ */
+class TextAreaFormBlock extends AbstractFormBlock
+{
+	/** @inheritdoc  */
+	public function GetFormType(): string
+	{
+		return TextareaType::class;
+	}
+
+	/** @inheritdoc  */
+	public function InitOptions(): array
+	{
+		return [];
+	}
+}

sources/Forms/Block/Base/TextFormBlock.php

@@ -6,18 +6,24 @@
 
 namespace Combodo\iTop\Forms\Block\Base;
 
-use Combodo\iTop\Forms\Block\FormBlock;
+use Combodo\iTop\Forms\Block\AbstractFormBlock;
 use Symfony\Component\Form\Extension\Core\Type\TextType;
 
 /**
  * Form block for string.
  *
  */
-class StringFormBlock extends FormBlock
+class TextFormBlock extends AbstractFormBlock
 {
-	/** @inheritdoc  */
+	/** @inheritdoc */
 	public function GetFormType(): string
 	{
 		return TextType::class;
 	}
+
+	/** @inheritdoc */
+	public function InitOptions(): array
+	{
+		return [];
+	}
 }

sources/Forms/Block/DataModel/AttributeChoiceFormBlock.php

@@ -7,12 +7,15 @@
 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\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\Converter\StringToAttributeConverter;
-use Combodo\iTop\Forms\FormType\AttributeChoiceType;
+use Combodo\iTop\Forms\Block\IO\Converter\StringToAttributeConverter;
+use Combodo\iTop\Forms\FormType\AttributeFormType;
+use CoreException;
+use MetaModel;
 
 /**
  * Form block for choice of class attributes.
@@ -27,6 +30,14 @@ class AttributeChoiceFormBlock extends ChoiceFormBlock
 	// outputs
 	public const OUTPUT_ATTRIBUTE = 'attribute';
 
+	/** @inheritdoc  */
+	public function InitOptions(): array
+	{
+		$aOptions = parent::InitOptions();
+		$aOptions['placeholder'] = 'Select an attribute...';
+		return $aOptions;
+	}
+
 	/** @inheritdoc  */
 	public function InitInputs(): void
 	{
@@ -41,15 +52,27 @@ class AttributeChoiceFormBlock extends ChoiceFormBlock
 		$this->AddOutput(new FormOutput(self::OUTPUT_ATTRIBUTE, AttributeIOFormat::class, new StringToAttributeConverter()));
 	}
 
-	/** @inheritdoc  */
+	/** @inheritdoc
+	 * @throws FormBlockException
+	 */
+	public function AllowAdd(): bool
+	{
+		return $this->GetInput(self::INPUT_CLASS_NAME)->Value() != '';
+	}
+
+	/** @inheritdoc
+	 * @throws FormBlockException
+	 * @throws CoreException
+	 */
 	public function UpdateOptions(): array
 	{
 		$aOptions = parent::GetOptions();
 
-		$oBinding = $this->GetInput(self::INPUT_CLASS_NAME)->GetBinding();
-		$oConnectionValue = $oBinding->oSourceIO->Value();
+		$oValue = $this->GetInput(self::INPUT_CLASS_NAME)->Value();
+		if($oValue == '')
+			return $aOptions;
 
-		$aAttributeCodes = \MetaModel::GetAttributesList($oConnectionValue);
+		$aAttributeCodes = MetaModel::GetAttributesList($oValue);
 		$aAttributeCodes = array_combine($aAttributeCodes, $aAttributeCodes) ;
 		$aOptions['choices'] = $aAttributeCodes;
 
@@ -59,6 +82,6 @@ class AttributeChoiceFormBlock extends ChoiceFormBlock
 	/** @inheritdoc  */
 	public function GetFormType(): string
 	{
-		return AttributeChoiceType::class;
+		return AttributeFormType::class;
 	}
 }

sources/Forms/Block/DataModel/AttributeValueChoiceFormBlock.php

@@ -7,10 +7,16 @@
 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\FormType\AttributeValueChoiceType;
+use Combodo\iTop\Forms\Block\IO\FormOutput;
+use Combodo\iTop\Forms\FormType\AttributeValueFormType;
+use Exception;
+use MetaModel;
 
 /**
  * Form block for choice of class attribute values.
@@ -23,13 +29,15 @@ class AttributeValueChoiceFormBlock extends ChoiceFormBlock
 	public const INPUT_CLASS_NAME = 'class_name';
 	public const INPUT_ATTRIBUTE  = 'attribute';
 
+	// Outputs
+	public const OUTPUT_VALUE  = 'value';
+
 	/** @inheritdoc  */
 	public function InitOptions(array &$aOptions = []): array
 	{
 		$aOptions['multiple'] = true;
-		$aOptions['required'] = false;
 		$aOptions['attr'] = [
-			'size' => 10,
+			'size' => 5,
 			'style' => 'height: auto;'
 		];
 
@@ -44,23 +52,52 @@ class AttributeValueChoiceFormBlock extends ChoiceFormBlock
 		$this->AddInput(new FormInput(self::INPUT_ATTRIBUTE, AttributeIOFormat::class));
 	}
 
+	/** @inheritdoc  */
+	public function InitOutputs(): void
+	{
+		parent::InitOutputs();
+		$this->AddOutput(new FormOutput(self::OUTPUT_VALUE, RawFormat::class));
+	}
+
+	/** @inheritdoc
+	 * @throws FormBlockException
+	 * @throws Exception
+	 */
+	public function AllowAdd(): bool
+	{
+		$bDependentOk = $this->GetInput(self::INPUT_CLASS_NAME)->Value() != '' && $this->GetInput(self::INPUT_ATTRIBUTE)->Value() != '';
+
+		if($bDependentOk) {
+			$oAttDef = MetaModel::GetAttributeDef($this->GetInput(self::INPUT_CLASS_NAME)->Value()->__toString(), $this->GetInput(self::INPUT_ATTRIBUTE)->Value()->__toString());
+			$aValues = $oAttDef->GetAllowedValues();
+			return $aValues != null;
+		}
+		else{
+			return false;
+		}
+	}
+
+	/** @inheritdoc
+	 * @throws Exception
+	 */
 	public function UpdateOptions(): array
 	{
 		$aOptions = parent::GetOptions();
 
-		$oBindingClassName = $this->GetInput(self::INPUT_CLASS_NAME)->GetBinding();
-		if($oBindingClassName->oSourceIO->Value() === null || $oBindingClassName->oSourceIO->Value() == "")
+		$oClassName = $this->GetInput(self::INPUT_CLASS_NAME)->Value();
+		if($oClassName == '')
 			return $aOptions;
-		$oClassName = $oBindingClassName->oSourceIO->Value();
 
-		$oBindingAttribute = $this->GetInput(self::INPUT_ATTRIBUTE)->GetBinding();
-		if($oBindingAttribute->oSourceIO->Value() === null || $oBindingAttribute->oSourceIO->Value() == "")
+		$oAttribute = $this->GetInput(self::INPUT_ATTRIBUTE)->Value();
+		if($oAttribute == '')
 			return $aOptions;
-		$oAttribute = $oBindingAttribute->oSourceIO->Value();
 
-		$oAttDef = \MetaModel::GetAttributeDef(strval($oClassName), strval($oAttribute));
+		$oAttDef = MetaModel::GetAttributeDef(strval($oClassName), strval($oAttribute));
 		$aValues = $oAttDef->GetAllowedValues();
 
+		if($aValues === null)
+			return $aOptions;
+
 		$aOptions['choices'] = array_flip($aValues);
 
 		return $aOptions;
@@ -69,7 +106,7 @@ class AttributeValueChoiceFormBlock extends ChoiceFormBlock
 	/** @inheritdoc  */
 	public function GetFormType(): string
 	{
-		return AttributeValueChoiceType::class;
+		return AttributeValueFormType::class;
 	}
 
 }

sources/Forms/Block/DataModel/OqlFormBlock.php

@@ -6,21 +6,28 @@
 
 namespace Combodo\iTop\Forms\Block\DataModel;
 
-use Combodo\iTop\Forms\Block\Base\StringFormBlock;
+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\Converter\OqlToClassConverter;
+use Combodo\iTop\Forms\Block\IO\Converter\OqlToClassConverter;
+use Combodo\iTop\Forms\FormType\OqlFormType;
 
 /**
  * Form block for oql expression.
  *
  * @package DataModel
  */
-class OqlFormBlock extends StringFormBlock
+class OqlFormBlock extends TextAreaFormBlock
 {
 	// outputs
 	public const OUTPUT_SELECTED_CLASS = 'selected_class';
 
+	/** @inheritdoc  */
+	public function GetFormType(): string
+	{
+		return OqlFormType::class;
+	}
+
 	/** @inheritdoc  */
 	public function InitOutputs(): void
 	{
@@ -28,4 +35,14 @@ class OqlFormBlock extends StringFormBlock
 		$this->AddOutput(new FormOutput(self::OUTPUT_SELECTED_CLASS, ClassIOFormat::class, new OqlToClassConverter()));
 	}
 
+	/** @inheritdoc  */
+	public function InitOptions(): array
+	{
+		$aOptions = parent::InitOptions();
+		$aOptions['with_ai_button'] = true;
+		return $aOptions;
+	}
+
+
+
 }

sources/Forms/Block/FormBlock.php

@@ -1,46 +0,0 @@
-<?php
-/*
- * @copyright   Copyright (C) 2010-2025 Combodo SARL
- * @license     http://opensource.org/licenses/AGPL-3.0
- */
-
-namespace Combodo\iTop\Forms\Block;
-
-use Combodo\iTop\Forms\Block\IO\FormOutput;
-use Symfony\Component\Form\Extension\Core\Type\FormType;
-
-/**
- * Complex form type.
- *
- */
-class FormBlock extends AbstractFormBlock
-{
-	public const OUTPUT_VALUE = 'value';
-
-	/** @inheritdoc  */
-	public function GetFormType(): string
-	{
-		return FormType::class;
-	}
-
-	/** @inheritdoc  */
-	public function InitInputs(): void
-	{
-	}
-
-	/** @inheritdoc  */
-	public function InitOutputs(): void
-	{
-		$this->AddOutput(new FormOutput(self::OUTPUT_VALUE, 'string'));
-	}
-
-	/** @inheritdoc  */
-	public function InitOptions(): array
-	{
-		return [];
-	}
-
-	protected function BuildForm(): void
-	{
-	}
-}

sources/Forms/Block/IO/AbstractFormIO.php

@@ -7,48 +7,168 @@
 namespace Combodo\iTop\Forms\Block\IO;
 
 use Combodo\iTop\Forms\Block\AbstractFormBlock;
+use Symfony\Component\Form\FormEvents;
 
 class AbstractFormIO
 {
-
+	/** @var AbstractFormBlock The owner block */
 	private AbstractFormBlock $oOwnerBlock;
+
+	/** @var string Name of the IO */
 	private string $sName;
+
+	/** @var string Type of the IO data */
 	private string $sType;
 
+	/** @var array Stored values */
+	private array $aValues = [];
+
+	/**
+	 * Constructor.
+	 *
+	 * @param string $sName
+	 * @param string $sType
+	 */
 	public function __construct(string $sName, string $sType)
 	{
 		$this->sName = $sName;
 		$this->sType = $sType;
 	}
 
+	/**
+	 * Get the IO name.
+	 *
+	 * @return string
+	 */
 	public function GetName(): string
 	{
 		return $this->sName;
 	}
 
-	public function SetName(string $sName): void
+	/**
+	 * Set the IO name.
+	 *
+	 * @param string $sName
+	 *
+	 * @return self
+	 */
+	public function SetName(string $sName): self
 	{
 		$this->sName = $sName;
+		return $this;
 	}
 
-	public function GetType(): string
+	/**
+	 * Get the IO data type.
+	 *
+	 * @return string
+	 */
+	public function GetDataType(): string
 	{
 		return $this->sType;
 	}
 
-	public function SetType(string $sType): void
-	{
-		$this->sType = $sType;
-	}
-
+	/**
+	 * Get the owner block.
+	 *
+	 * @return AbstractFormBlock
+	 */
 	public function GetOwnerBlock(): AbstractFormBlock
 	{
 		return $this->oOwnerBlock;
 	}
 
-	public function SetOwnerBlock(AbstractFormBlock $oOwnerBlock): void
+	/**
+	 * Set the owner block.
+	 *
+	 * @param AbstractFormBlock $oOwnerBlock
+	 *
+	 * @return $this
+	 */
+	public function SetOwnerBlock(AbstractFormBlock $oOwnerBlock): self
 	{
 		$this->oOwnerBlock = $oOwnerBlock;
+		return $this;
 	}
 
+	/**
+	 * Set the IO value.
+	 *
+	 * @param string $sEventType
+	 * @param mixed $oValue
+	 *
+	 * @return self
+	 */
+	public function SetValue(string $sEventType, mixed $oValue): self
+	{
+		$this->aValues[$sEventType] = $oValue;
+
+		return $this;
+	}
+
+	/**
+	 * Get the IO value.
+	 *
+	 * @param string $sEventType
+	 *
+	 * @return mixed
+	 */
+	public function GetValue(string $sEventType): mixed
+	{
+		return $this->aValues[$sEventType] ?? null;
+	}
+
+	/**
+	 * Return true if value exist.
+	 *
+	 * @return bool
+	 */
+	public function HasValue(): bool
+	{
+		$PostSetDataExist = array_key_exists(FormEvents::POST_SET_DATA, $this->aValues) && $this->aValues[FormEvents::POST_SET_DATA] !== null;
+		$PostSubmitExist = array_key_exists(FormEvents::POST_SUBMIT, $this->aValues) && $this->aValues[FormEvents::POST_SUBMIT] !== null;
+		return $PostSetDataExist || $PostSubmitExist;
+	}
+
+	/**
+	 * Return all values.
+	 *
+	 * @return array
+	 */
+	public function GetValues(): array
+	{
+		return $this->aValues;
+	}
+
+	/**
+	 * Set the IO values.
+	 *
+	 * @param array $aValues
+	 *
+	 * @return $this
+	 */
+	public function SetValues(array $aValues): self
+	{
+		$this->aValues = $aValues;
+
+		return $this;
+	}
+
+	/**
+	 * Get the most relevant value.
+	 *
+	 * @return mixed
+	 */
+	public function Value(): mixed
+	{
+		if(array_key_exists(FormEvents::POST_SUBMIT, $this->aValues) ){
+			return $this->aValues[FormEvents::POST_SUBMIT];
+		}
+		if(array_key_exists(FormEvents::POST_SET_DATA, $this->aValues) ){
+			return $this->aValues[FormEvents::POST_SET_DATA];
+		}
+		return null;
+	}
+
+
 }

sources/Forms/Block/IO/Converter/AbstractConverter.php

@@ -4,12 +4,12 @@
  * @license     http://opensource.org/licenses/AGPL-3.0
  */
 
-namespace Combodo\iTop\Forms\Converter;
+namespace Combodo\iTop\Forms\Block\IO\Converter;
 
 /**
  * Output converter.
  */
-abstract class AbstractOutputConverter
+abstract class AbstractConverter
 {
 	/**
 	 * Convert the date to output format.

sources/Forms/Block/IO/Converter/OqlToClassConverter.php

@@ -0,0 +1,41 @@
+<?php
+/*
+ * @copyright   Copyright (C) 2010-2025 Combodo SARL
+ * @license     http://opensource.org/licenses/AGPL-3.0
+ */
+
+namespace Combodo\iTop\Forms\Block\IO\Converter;
+
+use Combodo\iTop\Forms\Block\IO\Format\ClassIOFormat;
+use MetaModel;
+use Symfony\Component\Filesystem\Exception\IOException;
+
+/**
+ * OQL expression to class converter.
+ */
+class OqlToClassConverter extends AbstractConverter
+{
+	/** @inheritdoc  */
+	public function Convert(mixed $oData): ?ClassIOFormat
+	{
+		if($oData === null)
+			return null;
+
+		// Extract OQL information
+		preg_match('/SELECT\s+(\w+)/', $oData, $aMatches);
+
+		// Selected class
+		if(isset($aMatches[1])){
+			$sSelectedClass = $aMatches[1];
+			if(!MetaModel::IsValidClass($sSelectedClass)){
+				throw new IOException('Incorrect OQL select class name ' . $sSelectedClass);
+			}
+			return new ClassIOFormat($aMatches[1]);
+		}
+		else{
+			throw new IOException('Incorrect OQL sentence');
+		}
+
+
+	}
+}

sources/Forms/Block/IO/Converter/StringToAttributeConverter.php

@@ -4,15 +4,14 @@
  * @license     http://opensource.org/licenses/AGPL-3.0
  */
 
-namespace Combodo\iTop\Forms\Converter;
+namespace Combodo\iTop\Forms\Block\IO\Converter;
 
 use Combodo\iTop\Forms\Block\IO\Format\AttributeIOFormat;
-use Combodo\iTop\Forms\Block\IO\Format\ClassIOFormat;
 
 /**
  * String to attribute converter.
  */
-class StringToAttributeConverter extends AbstractOutputConverter
+class StringToAttributeConverter extends AbstractConverter
 {
 	/** @inheritdoc  */
 	public function Convert(mixed $oData): ?AttributeIOFormat

sources/Forms/Block/IO/FormBinding.php

@@ -6,11 +6,15 @@
 
 namespace Combodo\iTop\Forms\Block\IO;
 
-
 class FormBinding
 {
-	public function __construct(public readonly FormInput $oDestinationIO, public readonly AbstractFormIO $oSourceIO)
+	public function __construct(public readonly AbstractFormIO $oSourceIO, public readonly AbstractFormIO $oDestinationIO)
 	{
 
 	}
+
+	public function PropagateValues(): void
+	{
+		$this->oDestinationIO->SetValues($this->oSourceIO->GetValues());
+	}
 }

sources/Forms/Block/IO/FormInput.php

@@ -10,27 +10,59 @@ use Combodo\iTop\Forms\Block\FormBlockIOException;
 
 class FormInput extends AbstractFormIO
 {
-
 	private FormBinding|null $oBinding = null;
 
+	private array $aBindingsToInputs = [];
 
-	public function Bind(AbstractFormIO $oSourceIO): void
+	/**
+	 * @throws FormBlockIOException
+	 */
+	public function BindFromOutput(FormOutput $oSourceIO): void
 	{
-		if($this->GetType() !== $oSourceIO->GetType()){
+		if($this->GetDataType() !== $oSourceIO->GetDataType()){
 			throw new FormBlockIOException('Cannot connect input types incompatibles ' . $this->GetName() . ' from ' . $oSourceIO->GetOwnerBlock()->GetName() . ' ' . $oSourceIO->GetName());
 		}
 
-		$this->oBinding = new FormBinding($this, $oSourceIO);
+		$this->oBinding = $oSourceIO->BindToInput($this);
 	}
 
-	public function GetBinding(): FormBinding
+	/**
+	 * @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(string $sEventType): bool
+	public function IsDataReady(): bool
 	{
-		return $this->oBinding->oSourceIO->HasValue($sEventType);
+		return $this->HasValue();
 	}
 
 	public function IsBound(): bool
@@ -38,4 +70,25 @@ class FormInput extends AbstractFormIO
 		return $this->oBinding !== null;
 	}
 
+	public function SetValues(array $aValues): AbstractFormIO
+	{
+		parent::SetValues($aValues);
+
+		$this->PropagateBindingsValues();
+
+		return $this;
+	}
+
+	/**
+	 * Propagate the bindings values.
+	 *
+	 * @return void
+	 */
+	public function PropagateBindingsValues(): void
+	{
+		// propagate the value
+		foreach ($this->aBindingsToInputs as $oBinding) {
+			$oBinding->PropagateValues();
+		}
+	}
 }

sources/Forms/Block/IO/FormOutput.php

@@ -6,20 +6,42 @@
 
 namespace Combodo\iTop\Forms\Block\IO;
 
-use Combodo\iTop\Forms\Converter\AbstractOutputConverter;
-use Symfony\Component\Form\FormEvents;
+use Combodo\iTop\Forms\Block\FormBlockIOException;
+use Combodo\iTop\Forms\Block\IO\Converter\AbstractConverter;
 
 class FormOutput extends AbstractFormIO
 {
-	private null|AbstractOutputConverter $oConverter;
-	private array $aValues = [];
+	/** @var AbstractConverter|null  */
+	private null|AbstractConverter $oConverter;
 
-	public function __construct(string $sName, string $sType, AbstractOutputConverter $oConverter = null)
+	private FormBinding|null $oBinding = null;
+
+	/** @var array  */
+	private array $aBindingsToInputs = [];
+
+	/** @var array  */
+	private array $aBindingsToOutputs = [];
+
+	/**
+	 * Constructor.
+	 *
+	 * @param string $sName
+	 * @param string $sType
+	 * @param AbstractConverter|null $oConverter
+	 */
+	public function __construct(string $sName, string $sType, AbstractConverter $oConverter = null)
 	{
 		parent::__construct($sName, $sType);
 		$this->oConverter = $oConverter;
 	}
 
+	/**
+	 * Convert the value.
+	 *
+	 * @param mixed $oData
+	 *
+	 * @return mixed
+	 */
 	public function ConvertValue(mixed $oData): mixed
 	{
 		if (is_null($this->oConverter)) {
@@ -28,39 +50,101 @@ class FormOutput extends AbstractFormIO
 		return $this->oConverter->Convert($oData);
 	}
 
-	public function UpdateOutputValue(mixed $oData, string $sEventType): void
+	/**
+	 * Compute the value.
+	 *
+	 * @param string $sEventType
+	 * @param mixed $oData
+	 *
+	 * @return void
+	 */
+	public function ComputeValue(string $sEventType, mixed $oData): void
 	{
-		$this->aValues[$sEventType] = $this->ConvertValue($oData);
+		$this->SetValue($sEventType, $this->ConvertValue($oData));
+
+		// propagate the bindings values
+		$this->PropagateBindingsValues();
 	}
 
-	public function GetValue(string $sEventType): mixed
+	/**
+	 * Propagate the bindings values.
+	 *
+	 * @return void
+	 */
+	public function PropagateBindingsValues(): void
 	{
-		return $this->aValues[$sEventType] ?? null;
-	}
-
-	public function Value(): mixed
-	{
-		if(array_key_exists(FormEvents::POST_SUBMIT, $this->aValues) ){
-			return $this->aValues[FormEvents::POST_SUBMIT];
-	   }
-		if(array_key_exists(FormEvents::POST_SET_DATA, $this->aValues) ){
-			return $this->aValues[FormEvents::POST_SET_DATA];
+		// propagate the value
+		foreach ($this->aBindingsToInputs as $oBinding) {
+			$oBinding->PropagateValues();
+		}
+
+		// propagate the value
+		foreach ($this->aBindingsToOutputs as $oBinding) {
+			$oBinding->PropagateValues();
 		}
-		return null;
 	}
 
-	public function HasValue(string $sEventType): bool
+	/**
+	 * Bind to input.
+	 *
+	 * @param FormInput $oDestinationIO
+	 *
+	 * @return FormBinding
+	 */
+	public function BindToInput(FormInput $oDestinationIO): FormBinding
 	{
-		return array_key_exists($sEventType, $this->aValues) && $this->aValues[$sEventType] !== null;
+		$oBinding = new FormBinding($this, $oDestinationIO);
+
+		$this->aBindingsToInputs[] = $oBinding;
+
+		return $oBinding;
 	}
 
-	public function HasValues(): bool
+	/**
+	 * Bind to output.
+	 *
+	 * @param FormOutput $oDestinationIO
+	 *
+	 * @return FormBinding
+	 */
+	public function BindToOutput(FormOutput $oDestinationIO): FormBinding
 	{
-		return count($this->aValues) > 0;
+		$oBinding = new FormBinding($this, $oDestinationIO);
+
+		$this->aBindingsToOutputs[] = $oBinding;
+
+		return $oBinding;
 	}
 
-	public function GetValues(): array
+	public function GetBinding(): ?FormBinding
 	{
-		return $this->aValues;
+		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.
+	 *
+	 * @return array
+	 */
+	public function GetBindings(): array
+	{
+		return $this->aBindingsToInputs;
 	}
 }

sources/Forms/Block/IO/Format/AttributeIOFormat.php

@@ -2,7 +2,9 @@
 
 namespace Combodo\iTop\Forms\Block\IO\Format;
 
-class AttributeIOFormat
+use JsonSerializable;
+
+class AttributeIOFormat implements JsonSerializable
 {
 	public function __construct(public string $sAttributeName)
 	{
@@ -13,4 +15,9 @@ class AttributeIOFormat
 	{
 		return $this->sAttributeName;
 	}
+
+	public function jsonSerialize(): mixed
+	{
+		return $this->sAttributeName;
+	}
 }

sources/Forms/Block/IO/Format/ClassIOFormat.php

@@ -2,7 +2,9 @@
 
 namespace Combodo\iTop\Forms\Block\IO\Format;
 
-class ClassIOFormat
+use JsonSerializable;
+
+class ClassIOFormat implements JsonSerializable
 {
 	public function __construct(public string $sClassName)
 	{
@@ -13,4 +15,9 @@ class ClassIOFormat
 	{
 		return $this->sClassName;
 	}
+
+	public function jsonSerialize(): mixed
+	{
+		return $this->sClassName;
+	}
 }

sources/Forms/Block/IO/Format/RawFormat.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace Combodo\iTop\Forms\Block\IO\Format;
+
+class RawFormat
+{
+	public function __construct(public string $oValue)
+	{
+		// validation du format sinon exception
+	}
+
+	public function __toString(): string
+	{
+		return strval($this->oValue);
+	}
+}

sources/Forms/Converter/OqlToClassConverter.php

@@ -1,25 +0,0 @@
-<?php
-/*
- * @copyright   Copyright (C) 2010-2025 Combodo SARL
- * @license     http://opensource.org/licenses/AGPL-3.0
- */
-
-namespace Combodo\iTop\Forms\Converter;
-
-use Combodo\iTop\Forms\Block\IO\Format\ClassIOFormat;
-
-/**
- * OQL expression to class converter.
- */
-class OqlToClassConverter extends AbstractOutputConverter
-{
-	/** @inheritdoc  */
-	public function Convert(mixed $oData): ?ClassIOFormat
-	{
-		if($oData === null)
-			return null;
-		// extract selected class
-		preg_match('/SELECT\s+(\w+)/', $oData, $aMatches);
-		return new ClassIOFormat($aMatches[1]) ?? null;
-	}
-}

sources/Forms/FormBuilder/DependencyHandler.php

@@ -6,8 +6,13 @@
 
 namespace Combodo\iTop\Forms\FormBuilder;
 
+use Combodo\iTop\Forms\Block\AbstractFormBlock;
+use Combodo\iTop\Forms\Block\Base\FormBlock;
+use Symfony\Component\Form\Extension\Core\Type\HiddenType;
+use Symfony\Component\Form\FormBuilderInterface;
 use Symfony\Component\Form\FormEvent;
 use Symfony\Component\Form\FormEvents;
+use Symfony\Component\Form\FormInterface;
 
 /**
  * Dependencies handler.
@@ -15,28 +20,45 @@ use Symfony\Component\Form\FormEvents;
  */
 class DependencyHandler
 {
-	/** @var FormBuilder form builder */
-	private FormBuilder $oFormBuilder;
-
-	/** @var array dependant blocks */
-	private array $aDependentBlocks;
+	public static array $aDependencyHandlers = [];
 
 	/** @var DependencyMap dependencies map */
-	private DependencyMap $aDependenciesMap;
+	private DependencyMap $oDependenciesMap;
+
+	/** @var array Debug data */
+	private array $aDebugData = [];
 
 	/**
 	 * Constructor.
 	 *
-	 * @param FormBuilder $oFormBuilder
-	 * @param array $aDependentBlocks
+	 * @param string $sName The name
+	 * @param AbstractFormBlock $oFormBlock The attached form block
+	 * @param FormBuilder $oFormBuilder The form builder
+	 * @param array $aSubBlocks Sub blocks
+	 * @param array $aDependentBlocks Dependants blocks
 	 */
-	public function __construct(FormBuilder $oFormBuilder, array $aDependentBlocks)
+	public function __construct(private readonly string $sName, private readonly AbstractFormBlock $oFormBlock, private readonly FormBuilder $oFormBuilder, private readonly array $aSubBlocks, private readonly array $aDependentBlocks)
 	{
-		$this->aDependentBlocks = $aDependentBlocks;
-		$this->oFormBuilder = $oFormBuilder;
+		// dependencies map
+		$this->oDependenciesMap = new DependencyMap($this->aDependentBlocks);
 
-		// add form ready listener
+		// Add form ready listener
 		$this->AddFormReadyListener();
+
+		// Check the dependencies
+		$this->CheckDependencies($this->oFormBuilder);
+
+		self::$aDependencyHandlers[] = $this;
+	}
+
+	/**
+	 * Return the form block.
+	 *
+	 * @return AbstractFormBlock
+	 */
+	public function GetFormBlock(): AbstractFormBlock
+	{
+		return $this->oFormBlock;
 	}
 
 	/**
@@ -52,11 +74,20 @@ class DependencyHandler
 		// Initialize the dependencies listeners once the form is built
 		$this->oFormBuilder->addEventListener(FormEvents::PRE_SET_DATA, function (FormEvent $event) {
 
-			// dependencies map
-			$this->aDependenciesMap = new DependencyMap($this->aDependentBlocks);
-
 			/** Iterate throw listened blocks */
-			foreach ($this->aDependenciesMap->GetListenedBlockNames() as $sOutputBlockName) {
+			foreach ($this->oDependenciesMap->GetListenedOutputBlockNames() as $sOutputBlockName) {
+
+				// inner binding
+				if($sOutputBlockName === $this->oFormBlock->getName()) {
+					continue;
+				}
+
+				$this->aDebugData[] = [
+					'builder' => $this->oFormBuilder->getName(),
+					'event' => 'form.listen',
+					'form' => $sOutputBlockName,
+					'value' => null
+				];
 
 				// Listen the output block POST_SET_DATA & POST_SUBMIT
 				$this->oFormBuilder->get($sOutputBlockName)->addEventListener(FormEvents::POST_SET_DATA, $this->GetEventListeningCallback());
@@ -65,7 +96,6 @@ class DependencyHandler
 		});
 	}
 
-
 	/**
 	 * Get the listening callback.
 	 *
@@ -78,52 +108,108 @@ class DependencyHandler
 			// Get the event type
 			$sEventType = FormHelper::GetEventType($oEvent);
 
+			$this->aDebugData[] = [
+				'builder' => $this->oFormBuilder->getName(),
+				'event' => $sEventType,
+				'form' => $oEvent->getForm()->getName(),
+				'value' => $oEvent->getData()
+			];
+
 			// Get the form
 			$oForm = $oEvent->getForm();
 
-			/** Iterate throw dependencies map... */
-			$sOutputBlockName = $oForm->getName();
-			if($this->aDependenciesMap->IsBlockHasOutputs($sOutputBlockName)){
-				$oOutputBlock = $this->oFormBuilder->GetFormBlock($sOutputBlockName);
-				foreach ($this->aDependenciesMap->GetOutputsForBlock($sOutputBlockName) as $sOutputName) {
-					$oOutput = $oOutputBlock->GetOutput($sOutputName);
-					$oOutput->UpdateOutputValue($oEvent->getData(), $sEventType);
-				}
+			// Get the form block
+			$oFormBlock = $this->aSubBlocks[$oForm->getName()];
+
+			// Compute the block outputs with the data
+			if(!$oFormBlock instanceof FormBlock) {
+				$oFormBlock->ComputeOutputs($sEventType, $oEvent->getData());
 			}
 
-
-
-			foreach ($this->aDependentBlocks as $oDependentBlock)
-			{
-
-				// When dependencies met, add the dependent field if not already done
-				if(!$oDependentBlock->IsAdded() && $oDependentBlock->IsInputsReady($sEventType)) {
-
-					// Get the dependent field options
-					$aOptions = $oDependentBlock->UpdateOptions();
-
-					// Add the listener callback to the dependent field if it is also a dependency for another field
-					if($this->aDependenciesMap->IsTheBlockInDependencies($oDependentBlock->getName())) {
-						$aOptions = array_merge($aOptions, [
-							'listener_callback' => $this->GetEventListeningCallback(),
-						]);
-					}
-
-					// Mark the dependency as added
-					$oDependentBlock->SetAdded(true);
-
-					// Add the dependent field to the form
-					$oForm->getParent()->add($oDependentBlock->GetName(), $oDependentBlock->GetFormType(), $aOptions);
-
-
-				}
-
-			}
-
-
+			// Check dependencies
+			$this->CheckDependencies($oForm->getParent());
 		};
 
 	}
 
 
+	/**
+	 * @param FormInterface|FormBuilderInterface $oForm
+	 *
+	 * @return void
+	 */
+	private function CheckDependencies(FormInterface|FormBuilderInterface $oForm): void
+	{
+		/** Iterate throw dependencies... @var AbstractFormBlock $oDependentBlock */
+		foreach ($this->aDependentBlocks as $qBlockName => $oDependentBlock)
+		{
+			// When dependencies met, add the dependent field if not already done
+			if(!$oDependentBlock->IsAdded() && $oDependentBlock->IsInputsReady()) {
+
+				// Get the dependent field options
+				$aOptions = $oDependentBlock->UpdateOptions();
+
+				// Add the listener callback to the dependent field if it is also a dependency for another field
+				if($this->oDependenciesMap->IsTheBlockInDependencies($oDependentBlock->getName())) {
+
+					// Pass the listener call back to be registered by the dependency form builder
+					$aOptions = array_merge($aOptions, [
+						'builder_listener' => $this->GetEventListeningCallback(),
+					]);
+				}
+
+				if($oDependentBlock->AllowAdd()) {
+
+					$this->aDebugData[] = [
+						'builder' => $this->oFormBuilder->getName(),
+						'event' => 'form.add',
+						'form' => $oDependentBlock->getName(),
+						'value' => null
+					];
+
+					// Mark the dependency as added
+					$oDependentBlock->SetAdded(true);
+
+					// Add the dependent field to the form
+					$oForm->add($oDependentBlock->GetName(), $oDependentBlock->GetFormType(), $aOptions);
+
+				}
+
+			}
+
+			if($oDependentBlock->IsAdded() && !$oDependentBlock->IsInputsReady()) {
+				$oForm->add($oDependentBlock->GetName(), HiddenType::class, [
+					'form_block' => $oDependentBlock,
+					'prevent_form_build' => true,
+					]);
+			}
+
+		}
+
+	}
+
+	/**
+	 * Get the debug data.
+	 *
+	 * @return array
+	 */
+	public function GetDebugData(): array
+	{
+		return $this->aDebugData;
+	}
+
+	public function GetMap(): DependencyMap
+	{
+		return $this->oDependenciesMap;
+	}
+
+	public function GetSubBlocks(): array
+	{
+		return $this->aSubBlocks;
+	}
+
+	public function GetName(): string
+	{
+		return $this->sName;
+	}
 }

sources/Forms/FormBuilder/DependencyMap.php

@@ -8,6 +8,8 @@ namespace Combodo\iTop\Forms\FormBuilder;
 
 use Combodo\iTop\Forms\Block\FormBlock;
 use Combodo\iTop\Forms\Block\IO\FormBinding;
+use Combodo\iTop\Forms\Block\IO\FormInput;
+use Combodo\iTop\Forms\Block\IO\FormOutput;
 
 /**
  * Dependencies handler.
@@ -15,8 +17,14 @@ use Combodo\iTop\Forms\Block\IO\FormBinding;
  */
 class DependencyMap
 {
-	/** @var array dependencies map */
-	private array $aDependenciesMap;
+	/** @var array output to outputs map map */
+	private array $aOutputToInputsMap = [];
+
+	/** @var array input to inputs map map */
+	private array $aInputToInputsMap = [];
+
+	/** @var array output to outputs */
+	private array $aOutputToOutputsMap = [];
 
 	/**
 	 * Constructor.
@@ -36,38 +44,85 @@ class DependencyMap
 	 */
 	private function Init(): void
 	{
-		/** iterate throw dependents blocks... @var FormBlock $oDependentBlock */
-		foreach ($this->aDependentBlocks as $oDependentBlock) {
+		/** Iterate throw blocks with dependencies... @var FormBlock $oDependentBlock */
+		foreach ($this->aDependentBlocks as $sBlockName => $oDependentBlock) {
 
-			/** iterate throw the block inputs connections... @var FormBinding $oBinding**/
-			foreach ($oDependentBlock->GetInputsBindings() as $sInputName => $oBinding) {
+			/** Iterate throw the block inputs connections... @var FormBinding $oBinding**/
+			foreach ($oDependentBlock->GetInputsBindings() as $oBinding) {
 
-				// connection information
-				$sOutputBlockName = $oBinding->oSourceIO->GetOwnerBlock()->GetName();
-				$sOutputName = $oBinding->oSourceIO->GetName();
-
-				// initialize map
-				if (!isset($this->aDependenciesMap[$sOutputBlockName])) {
-					$this->aDependenciesMap[$sOutputBlockName] = [];
+				// Output to inputs map
+				if($oBinding->oSourceIO instanceof FormOutput
+				&& $oBinding->oDestinationIO instanceof FormInput){
+					$this->AddBindingToMap($this->aOutputToInputsMap, $oBinding);
 				}
-				if (!isset($this->aDependenciesMap[$sOutputBlockName][$sOutputName])) {
-					$this->aDependenciesMap[$sOutputBlockName][$sOutputName] = [];
+				// Input to inputs map
+				if($oBinding->oSourceIO instanceof FormInput
+				&& $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);
 				}
 
-				// add to map
-				$this->aDependenciesMap[$sOutputBlockName][$sOutputName][] = $oBinding;
+			}
+
+			/** Iterate throw the block inputs connections... @var FormBinding $oBinding**/
+			foreach ($oDependentBlock->GetOutputBindings() as $oBinding) {
+
+				// Output to outputs map
+				if($oBinding->oSourceIO instanceof FormOutput
+					&& $oBinding->oDestinationIO instanceof FormOutput){
+					$this->AddBindingToMap($this->aOutputToOutputsMap, $oBinding);
+				}
 
 			}
 		}
 
+		return;
+	}
+
+	/**
+	 * Add a binding to a map.
+	 *
+	 * @param array $map
+	 * @param FormBinding $oBinding
+	 *
+	 * @return void
+	 */
+	private function AddBindingToMap(array &$map, FormBinding $oBinding): void
+	{
+		// Binding information
+		$sBlockName = $oBinding->oSourceIO->GetOwnerBlock()->GetName();
+		$sIOName = $oBinding->oSourceIO->GetName();
+
+		// initialize map
+		if (!isset($map[$sBlockName])) {
+			$map[$sBlockName] = [];
+		}
+		if (!isset($map[$sBlockName][$sIOName])) {
+			$map[$sBlockName][$sIOName] = [];
+		}
+
+		// add to map
+		$map[$sBlockName][$sIOName][] = $oBinding;
 	}
 
 	/**
 	 * @return array
 	 */
-	public function GetListenedBlockNames(): array
+	public function GetListenedOutputBlockNames(): array
 	{
-		return array_keys($this->aDependenciesMap);
+		$aResult = [];
+
+		foreach(array_keys($this->aOutputToInputsMap) as $sOutputBlockName) {
+			if(!array_key_exists($sOutputBlockName, $this->aDependentBlocks)){
+				$aResult[] = $sOutputBlockName;
+			}
+		}
+
+		return $aResult;
 	}
 
 	/**
@@ -77,7 +132,7 @@ class DependencyMap
 	 */
 	public function IsBlockHasOutputs(string $sBlockName): bool
 	{
-		return array_key_exists($sBlockName, $this->aDependenciesMap);
+		return array_key_exists($sBlockName, $this->aOutputToInputsMap);
 	}
 
 	/**
@@ -87,12 +142,12 @@ class DependencyMap
 	 */
 	public function GetOutputsForBlock(string $sBlockName): array
 	{
-		return array_keys($this->aDependenciesMap[$sBlockName]);
+		return array_keys($this->aOutputToInputsMap[$sBlockName]);
 	}
 
 	public function GetOutputsDependenciesForBlock(string $sOutputBlockName): array
 	{
-		return $this->aDependenciesMap[$sOutputBlockName];
+		return $this->aOutputToInputsMap[$sOutputBlockName];
 	}
 
 	public function IsTheBlockInDependencies(string $sBlockName): bool
@@ -106,4 +161,19 @@ class DependencyMap
 
 		return false;
 	}
+
+	public function GetOutputToInputs(): array
+	{
+		return $this->aOutputToInputsMap;
+	}
+
+	public function GetInputToInputs(): array
+	{
+		return $this->aInputToInputsMap;
+	}
+
+	public function GetOutputToOutputs(): array
+	{
+		return $this->aOutputToOutputsMap;
+	}
 }

sources/Forms/FormBuilder/FormBuilder.php

@@ -7,6 +7,7 @@
 namespace Combodo\iTop\Forms\FormBuilder;
 
 use Combodo\iTop\Forms\Block\AbstractFormBlock;
+use Combodo\iTop\Forms\Block\Base\FormBlock;
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\Form\DataMapperInterface;
@@ -23,57 +24,135 @@ use Traversable;
 
 class FormBuilder implements FormBuilderInterface, \IteratorAggregate
 {
+	/** @var DependencyHandler|null  */
 	private ?DependencyHandler $oDependencyHandler = null;
-	private array $aFormBlocks = [];
+
+	/** @var AbstractFormBlock */
+	private AbstractFormBlock $oFormBlock;
+
+	/** @var array sub blocks */
+	private array $aSubFormBlocks = [];
 
 	/**
 	 * Constructor.
 	 *
 	 * @param FormBuilderInterface $builder
+	 *
 	 */
-	public function __construct(private FormBuilderInterface $builder)
+	public function __construct(private readonly FormBuilderInterface $builder)
 	{
-		$this->InitFormBlocks();
+		/** Get the corresponding form block @var AbstractFormBlock $oFormBlock */
+		$oFormBlock = $this->builder->getOption('form_block');
+
+		// Build the form
+		if($oFormBlock instanceof FormBlock) {
+			$this->BuildForm($oFormBlock);
+		}
 	}
 
+	/**
+	 * Build the form.
+	 *
+	 * @param FormBlock $oFormBlock
+	 *
+	 * @return void
+	 */
+	private function BuildForm(FormBlock $oFormBlock): void
+	{
+		// Hidden (ignore)
+		$aOptions = $this->builder->getOptions();
+		if(array_key_exists('prevent_form_build', $aOptions) && $aOptions['prevent_form_build']) {
+			return;
+		}
+
+		$aDependentBlocks = [];
+		/** Iterate throw the form sub blocks... @var FormBlock $oSubFormBlock */
+		foreach ($oFormBlock->GetSubFormBlocks() as $oSubFormBlock) {
+
+			// Add to the sub blocks array
+			$this->aSubFormBlocks[$oSubFormBlock->getName()] = $oSubFormBlock;
+
+			// Handle sub block
+			$bHasDependency = $this->HandleSubBlock($oSubFormBlock);
+
+			// Add to the dependencies array
+			if($bHasDependency){
+				$aDependentBlocks[$oSubFormBlock->GetName()] = $oSubFormBlock;
+			}
+
+		}
+
+		// Create a dependency handler if needed
+		if (count($aDependentBlocks) > 0) {
+			$this->oDependencyHandler = new DependencyHandler($this->builder->getName(), $oFormBlock, $this, $this->aSubFormBlocks, $aDependentBlocks);
+		}
+	}
+
+	/**
+	 * Add a sub block.
+	 *
+	 * @param AbstractFormBlock $oSubFormBlock
+	 *
+	 * @return bool
+	 */
+	private function HandleSubBlock(AbstractFormBlock $oSubFormBlock): bool
+	{
+
+		// Has at least one bounded input ?
+		if ($oSubFormBlock->HasAtLeastOneBoundInput()) {
+
+			// Insert a hidden type to save the place
+			$this->builder->add($oSubFormBlock->GetName(), HiddenType::class, [
+				'form_block' => $oSubFormBlock,
+				'prevent_form_build' => true,
+//				'mapped' => false,
+//				'disabled' => true,
+			]);
+
+			return true;
+
+		}
+		else {
+
+			// Directly insert the block corresponding form type
+			$this->add($oSubFormBlock->GetName(), $oSubFormBlock->GetFormType(), $oSubFormBlock->UpdateOptions());
+			$oSubFormBlock->SetAdded(true);
+
+			return false;
+
+		}
+	}
+
+	/**
+	 * Get a sub form block.
+	 *
+	 * @param string $sName
+	 *
+	 * @return AbstractFormBlock|null
+	 */
+	public function GetSubFormBlock(string $sName): ?AbstractFormBlock
+	{
+		return $this->aSubFormBlocks[$sName] ?? null;
+	}
+
+	/**
+	 * Return the dependency handler attached to this builder.
+	 *
+	 * @return DependencyHandler|null
+	 */
+	protected function GetDependencyHandler(): ?DependencyHandler
+	{
+		return $this->oDependencyHandler;
+	}
+
+	// pure decoration of FormBuilderInterface
+
 	public function add(string|FormBuilderInterface $child, ?string $type = null, array $options = []): static
 	{
 		$this->builder->add($child, $type, $options);
 		return $this;
 	}
 
-	private function InitFormBlocks()
-	{
-		$oFormBlock = $this->builder->getOption('form_block');
-		if (is_null($oFormBlock)) {
-			return;
-		}
-
-		$aDependentBlocks = [];
-		/** @var \Combodo\iTop\Forms\Block\FormBlock $oSubFormBlock */
-		foreach ($oFormBlock->GetSubFormBlocks() as $oSubFormBlock) {
-			$this->aFormBlocks[$oSubFormBlock->getName()] = $oSubFormBlock;
-			if ($oSubFormBlock->HasConnections()) {
-				$this->builder->add($oSubFormBlock->GetName(), HiddenType::class);
-				$aDependentBlocks[] = $oSubFormBlock;
-			} else {
-				$this->add($oSubFormBlock->GetName(), $oSubFormBlock->GetFormType(), $oSubFormBlock->UpdateOptions());
-				$oSubFormBlock->SetAdded(true);
-			}
-		}
-
-		if (count($aDependentBlocks) > 0) {
-			$this->oDependencyHandler = new DependencyHandler($this, $aDependentBlocks);
-		}
-	}
-
-	public function GetFormBlock(string $sName): ?AbstractFormBlock
-	{
-		return $this->aFormBlocks[$sName] ?? null;
-	}
-
-	// pure decoration of FormBuilderInterface
-
 	public function getIterator(): Traversable
 	{
 		return $this->builder->getIterator();

sources/Forms/FormBuilder/FormHelper.php

@@ -4,6 +4,7 @@ namespace Combodo\iTop\Forms\FormBuilder;
 
 use Symfony\Component\Form\Event\PostSetDataEvent;
 use Symfony\Component\Form\Event\PostSubmitEvent;
+use Symfony\Component\Form\Event\PreSubmitEvent;
 use Symfony\Component\Form\FormEvent;
 use Symfony\Component\Form\FormEvents;
 
@@ -24,6 +25,9 @@ class FormHelper
 		} else if ($event instanceof PostSubmitEvent) {
 			return FormEvents::POST_SUBMIT;
 		}
+		else if ($event instanceof PreSubmitEvent) {
+			return FormEvents::PRE_SUBMIT;
+		}
 
 		throw new FormBuilderException(sprintf('Unknown event type %s', get_class($event)));
 	}

sources/Forms/FormBuilder/FormTypeExtension.php

@@ -6,6 +6,7 @@
 
 namespace Combodo\iTop\Forms\FormBuilder;
 
+use Combodo\iTop\Forms\Block\FormBlock;
 use Symfony\Component\Form\AbstractTypeExtension;
 use Symfony\Component\Form\Extension\Core\Type\FormType;
 use Symfony\Component\Form\FormBuilderInterface;
@@ -14,9 +15,14 @@ use Symfony\Component\Form\FormInterface;
 use Symfony\Component\Form\FormView;
 use Symfony\Component\OptionsResolver\OptionsResolver;
 
+/**
+ * Extension for form types.
+ *
+ */
 class FormTypeExtension extends AbstractTypeExtension
 {
 
+	/** @inheritdoc  */
 	public static function getExtendedTypes(): iterable
 	{
 		return [
@@ -24,27 +30,34 @@ class FormTypeExtension extends AbstractTypeExtension
 		];
 	}
 
+	/** @inheritdoc  */
 	public function configureOptions(OptionsResolver $resolver): void
 	{
 		$resolver->setDefined([
 			'form_block',
-			'listener_callback',
+			'builder_listener',
+			'prevent_form_build'
 		]);
 	}
 
+	/** @inheritdoc  */
 	public function buildForm(FormBuilderInterface $builder, array $options): void
 	{
-		if(array_key_exists('listener_callback', $options)) {
-			$builder->addEventListener(FormEvents::POST_SET_DATA, $options['listener_callback']);
-			$builder->addEventListener(FormEvents::POST_SUBMIT, $options['listener_callback']);
+		if(array_key_exists('builder_listener', $options)) {
+			$builder->addEventListener(FormEvents::POST_SET_DATA, $options['builder_listener']);
+			$builder->addEventListener(FormEvents::POST_SUBMIT, $options['builder_listener']);
 		}
 
 	}
 
+	/** @inheritdoc  */
 	public function buildView(FormView $view, FormInterface $form, array $options): void
 	{
 		if(array_key_exists('form_block', $options)) {
 			$view->vars['form_block'] = $options['form_block'];
+
+			$oFormBlock = $options['form_block'];
+			$view->vars['trigger_form_submit_on_modify'] = $oFormBlock->HasAtLeastOneBoundOutput();
 		}
 
 	}

sources/Forms/FormType/AttributeFormType.php

@@ -0,0 +1,18 @@
+<?php
+/*
+ * @copyright   Copyright (C) 2010-2025 Combodo SARL
+ * @license     http://opensource.org/licenses/AGPL-3.0
+ */
+
+namespace Combodo\iTop\Forms\FormType;
+
+use Symfony\Component\Form\AbstractType;
+
+class AttributeFormType extends AbstractType
+{
+	public function getParent(): string
+	{
+		return ChoiceFormType::class;
+	}
+
+}

sources/Forms/FormType/AttributeValueChoiceType.php

@@ -1,67 +0,0 @@
-<?php
-/*
- * @copyright   Copyright (C) 2010-2025 Combodo SARL
- * @license     http://opensource.org/licenses/AGPL-3.0
- */
-
-namespace Combodo\iTop\Forms\FormType;
-
-use Symfony\Component\Form\AbstractType;
-use Symfony\Component\Form\Event\PreSubmitEvent;
-use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
-use Symfony\Component\Form\FormBuilderInterface;
-use Symfony\Component\Form\FormError;
-use Symfony\Component\Form\FormEvents;
-use Symfony\Component\OptionsResolver\OptionsResolver;
-
-class AttributeValueChoiceType extends AbstractType
-{
-	public function getParent(): string
-	{
-		return ChoiceType::class;
-	}
-
-	public function buildForm(FormBuilderInterface $builder, array $options): void
-	{
-		// on pre submit
-		$builder->addEventListener(FormEvents::PRE_SUBMIT, function (PreSubmitEvent $event) use ($options){
-
-			// reset value if not in available choices
-			if(!empty($event->getData()) && !$this->CheckValue($event->getData(), $options)){
-				$event->getForm()->addError(new FormError("The value has been reset because it is not part of the available choices anymore."));
-				$event->setData(null);
-			}
-
-		}, 1);
-	}
-
-	private function CheckValue($oValue, $options): bool
-	{
-		if(!is_array($oValue)){
-			return false;
-		}
-
-		foreach ($oValue as $v){
-			if(!in_array($v, $options['choices'])){
-				return false;
-			}
-		}
-
-		return true;
-	}
-
-	public static function GetOptionsFromInputs(array $inputs): array
-	{
-		$aValues = [];
-
-		if(!empty($inputs['attribute'])){
-			$oAttDef = \MetaModel::GetAttributeDef($inputs['object_class'], $inputs['attribute']);
-			$aValues = $oAttDef->GetAllowedValues();
-			$aValues = $aValues !== null ? array_combine($aValues, $aValues) : [];
-		}
-
-		return [
-			'choices' => $aValues
-		];
-	}
-}

sources/Forms/FormType/AttributeValueFormType.php

@@ -0,0 +1,32 @@
+<?php
+/*
+ * @copyright   Copyright (C) 2010-2025 Combodo SARL
+ * @license     http://opensource.org/licenses/AGPL-3.0
+ */
+
+namespace Combodo\iTop\Forms\FormType;
+
+use Symfony\Component\Form\AbstractType;
+
+class AttributeValueFormType extends AbstractType
+{
+	public function getParent(): string
+	{
+		return ChoiceFormType::class;
+	}
+
+	public static function GetOptionsFromInputs(array $inputs): array
+	{
+		$aValues = [];
+
+		if(!empty($inputs['attribute'])){
+			$oAttDef = \MetaModel::GetAttributeDef($inputs['object_class'], $inputs['attribute']);
+			$aValues = $oAttDef->GetAllowedValues();
+			$aValues = $aValues !== null ? array_combine($aValues, $aValues) : [];
+		}
+
+		return [
+			'choices' => $aValues
+		];
+	}
+}

sources/Forms/FormType/ChoiceFormType.php

@@ -12,15 +12,19 @@ use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
 use Symfony\Component\Form\FormBuilderInterface;
 use Symfony\Component\Form\FormError;
 use Symfony\Component\Form\FormEvents;
-use Symfony\Component\OptionsResolver\OptionsResolver;
 
-class AttributeChoiceType extends AbstractType
+/**
+ *
+ */
+class ChoiceFormType extends AbstractType
 {
+	/** @inheritdoc  */
 	public function getParent(): string
 	{
 		return ChoiceType::class;
 	}
 
+	/** @inheritdoc  */
 	public function buildForm(FormBuilderInterface $builder, array $options): void
 	{
 		// on pre submit
@@ -35,13 +39,28 @@ class AttributeChoiceType extends AbstractType
 		}, 1);
 	}
 
+	/**
+	 * @param $oValue
+	 * @param $options
+	 *
+	 * @return bool
+	 */
 	private function CheckValue($oValue, $options): bool
 	{
-
-		if(!in_array($oValue, $options['choices'])){
-			return false;
+		// Check multi selection values
+		if(is_array($oValue)){
+			foreach ($oValue as $v){
+				if(!in_array($v, $options['choices'])){
+					return false;
+				}
+			}
+		}
+		// Check single selection values
+		else{
+			if(!in_array($oValue, $options['choices'])){
+				return false;
+			}
 		}
-
 
 		return true;
 	}

sources/Forms/FormType/OqlFormType.php

@@ -0,0 +1,75 @@
+<?php
+/*
+ * @copyright   Copyright (C) 2010-2025 Combodo SARL
+ * @license     http://opensource.org/licenses/AGPL-3.0
+ */
+
+namespace Combodo\iTop\Forms\FormType;
+
+use Combodo\iTop\Forms\Block\IO\Converter\OqlToClassConverter;
+use Exception;
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\Event\PostSubmitEvent;
+use Symfony\Component\Form\Extension\Core\Type\TextareaType;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\Form\FormError;
+use Symfony\Component\Form\FormEvents;
+use Symfony\Component\Form\FormInterface;
+use Symfony\Component\Form\FormView;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+
+class OqlFormType extends AbstractType
+{
+	public function getParent(): string
+	{
+		return TextareaType::class;
+	}
+
+	public function configureOptions(OptionsResolver $resolver): void
+	{
+		$resolver->setDefault('help', 'An OQL query expression');
+
+		$resolver->setDefault('attr', [
+			'placeholder' => 'SELECT Contact',
+		]);
+
+		$resolver->setDefault('outputs', array(
+			'selected_class' => function($oData) {
+				if($oData === null)
+					return null;
+				// extract selected class
+				preg_match('/SELECT\s+(\w+)/', $oData, $aMatches);
+				return $aMatches[1] ?? null;
+			}
+		));
+
+		$resolver->setDefined('with_ai_button');
+	}
+
+	/** @inheritdoc  */
+	public function buildForm(FormBuilderInterface $builder, array $options): void
+	{
+		parent::buildForm($builder, $options);
+
+		// on pre submit
+		$builder->addEventListener(FormEvents::POST_SUBMIT, function (PostSubmitEvent $event) use ($options){
+
+			try{
+				$oClassConverter = new OqlToClassConverter();
+				$oClassConverter->Convert($event->getData());
+			}
+			catch(Exception $e){
+				$event->getForm()->addError(new FormError($e->getMessage()));
+			}
+
+		});
+	}
+
+	/** @inheritdoc  */
+	public function buildView(FormView $view, FormInterface $form, array $options): void
+	{
+		parent::buildView($view, $form, $options);
+
+		$view->vars['with_ai_button'] = $options['with_ai_button'];
+	}
+}

sources/Forms/FormType/OqlType.php

@@ -1,33 +0,0 @@
-<?php
-/*
- * @copyright   Copyright (C) 2010-2025 Combodo SARL
- * @license     http://opensource.org/licenses/AGPL-3.0
- */
-
-namespace Combodo\iTop\Forms\FormType;
-
-use Symfony\Component\Form\AbstractType;
-use Symfony\Component\Form\Extension\Core\Type\TextType;
-use Symfony\Component\OptionsResolver\OptionsResolver;
-
-class OqlType extends AbstractType
-{
-	public function getParent(): string
-	{
-		return TextType::class;
-	}
-
-	public function configureOptions(OptionsResolver $resolver): void
-	{
-		$resolver->setDefault('outputs', array(
-			'selected_class' => function($oData) {
-				if($oData === null)
-					return null;
-				// extract selected class
-				preg_match('/SELECT\s+(\w+)/', $oData, $aMatches);
-				return $aMatches[1] ?? null;
-			}
-		));
-	}
-
-}

templates/application/forms/itop_console_layout.html.twig

@@ -6,7 +6,9 @@
     {%  if type == 'text' %}{% set ibo_class='ibo-input-string' %}{% else %}{% set ibo_class='ibo-input-' ~ type %}{% endif %}
     {% set attr = attr|merge({class: (attr.class|default('') ~ ' ibo-input ' ~ ibo_class)|trim}) %}
     {{- parent() -}}
-    onChange="this.form.requestSubmit();console.log('Auto submitting form due to change in field {{ full_name }}');"
+    {%  if trigger_form_submit_on_modify %}
+        onChange="this.form.requestSubmit();console.log('Auto submitting form due to change in field {{ full_name }}');"
+    {% endif %}
 {%- endblock widget_attributes -%}
 
 {%- block form_label -%}
@@ -18,28 +20,23 @@
     {{- parent() -}}
 {%- endblock form_label -%}
 
+{%- block form_label_content -%}
+    {{- parent() -}}
+    {% if with_ai_button is defined and with_ai_button %}
+        <div style="float: right;display: flex;flex-direction: column;">
+            <button class="ibo-button ibo-button ibo-block  ibo-is-alternative ibo-is-neutral " data-role="ibo-button" type="button" name="AI" value="" data-tooltip-content="AI" aria-label="AI">
+                <span class="ibo-button--icon fas fa-magic"></span>
+            </button>
+            <button class="ibo-button ibo-button ibo-block  ibo-is-alternative ibo-is-neutral " data-role="ibo-button" type="button" name="Book" value="" data-tooltip-content="Query Book" aria-label="AI">
+                <span class="ibo-button--icon fas fa-book"></span>
+            </button>
+        </div>
+    {% endif %}
+{%-endblock form_label_content  -%}
+
 {%- block form_row -%}
     {% set row_attr = row_attr|merge({class: (row_attr.class|default('') ~ ' ibo-field ibo-content-block ibo-block  ibo-field-small')|trim}) %}
     {{- parent() -}}
-
-    {% if form_block is defined %}
-        {% for output in form_block.GetOutputs() %}
-            <ul>
-                {% if output.HasValues %}
-                    <li style="background-color:#dac2e3;border-radius: 8px;padding: 1px 4px;font-size: 1rem;margin: 5px 0;">
-                        <div>
-                            <div><b>{{ output.name }}</b></div>
-                            {% for t,v in output.GetValues %}
-                                <div>- {{ t }}: {{ v }}</div>
-                            {% endfor %}
-                        </div>
-                    </li>
-                {% endif %}
-            </ul>
-        {% else %}
-            Aucun output
-        {% endfor %}
-    {% endif %}
 {%- endblock form_row -%}
 
 {%- block form_errors -%}