N°8772 - Form dependencies manager implementation

- Form SDK implementation
- Basic Forms
- Dynamics Forms
- Basic Blocks + Data Model Block
- Form Compilation
- Turbo integration

sources/Forms/Block/Expression/AbstractExpressionFormBlock.php

@@ -0,0 +1,62 @@
+<?php
+
+/*
+ * @copyright   Copyright (C) 2010-2025 Combodo SAS
+ * @license     http://opensource.org/licenses/AGPL-3.0
+ */
+
+namespace Combodo\iTop\Forms\Block\Expression;
+
+use Combodo\iTop\Forms\Block\AbstractFormBlock;
+use Combodo\iTop\Forms\Block\FormBlockException;
+use Combodo\iTop\Forms\IO\Format\BooleanIOFormat;
+use Combodo\iTop\Forms\Register\IORegister;
+use Exception;
+use Expression;
+use Symfony\Component\Form\FormEvents;
+
+/**
+ * An abstract block to manage an expression.
+ *
+ * @package Combodo\iTop\Forms\Block\Expression
+ * @since 3.3.0
+ */
+abstract class AbstractExpressionFormBlock extends AbstractFormBlock
+{
+	public const EXPRESSION_PATTERN = "/:(?<input>\w+)/";
+
+	/** @inheritdoc
+	 * @throws FormBlockException
+	 */
+	public function AllInputsReadyEvent(): void
+	{
+		parent::AllInputsReadyEvent();
+		$this->ComputeExpression(FormEvents::POST_SET_DATA);
+		$this->ComputeExpression(FormEvents::POST_SUBMIT);
+	}
+
+	/**
+	 * Compute the expression and set the output values.
+	 *
+	 * @param string $sEventType
+	 *
+	 * @return mixed
+	 * @throws FormBlockException
+	 */
+	public function ComputeExpression(string $sEventType): mixed
+	{
+		$sExpression = $this->GetOption('expression');
+		try {
+			$oExpression = Expression::FromOQL($sExpression);
+			$aFieldsToResolve = $oExpression->ListRequiredFields();
+			$aResolvedParams = [];
+			foreach ($aFieldsToResolve as $sFieldToResolve) {
+				$aResolvedParams[$sFieldToResolve] = strval($this->GetInputValue($sFieldToResolve));
+			}
+			return $oExpression->Evaluate($aResolvedParams);
+		} catch (Exception $e) {
+			throw new FormBlockException('Compute expression '.json_encode($sExpression).' block issue: '.$e->getMessage(), 0, $e);
+		}
+	}
+
+}