1 files changed, 70 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/src/DataValues/ValueValidators/CompoundConstraintValueValidator.php b/www/wiki/extensions/SemanticMediaWiki/src/DataValues/ValueValidators/CompoundConstraintValueValidator.php
new file mode 100644
index 00000000..ec412a02
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/src/DataValues/ValueValidators/CompoundConstraintValueValidator.php
@@ -0,0 +1,70 @@
+<?php
+
+namespace SMW\DataValues\ValueValidators;
+
+use RuntimeException;
+
+/**
+ * @private
+ *
+ * @license GNU GPL v2+
+ * @since 2.4
+ *
+ * @author mwjames
+ */
+class CompoundConstraintValueValidator implements ConstraintValueValidator {
+
+	/**
+	 * @var boolean
+	 */
+	private $hasConstraintViolation = false;
+
+	/**
+	 * @var array
+	 */
+	private $constraintValueValidators = [];
+
+	/**
+	 * @since 2.4
+	 *
+	 * @param ConstraintValueValidator $constraintValueValidator
+	 */
+	public function registerConstraintValueValidator( ConstraintValueValidator $constraintValueValidator ) {
+		$this->constraintValueValidators[] = $constraintValueValidator;
+	}
+
+	/**
+	 * @since 2.4
+	 *
+	 * {@inheritDoc}
+	 */
+	public function hasConstraintViolation() {
+		return $this->hasConstraintViolation;
+	}
+
+	/**
+	 * @since 2.4
+	 *
+	 * {@inheritDoc}
+	 */
+	public function validate( $dataValue ) {
+
+		$this->hasConstraintViolation = false;
+
+		if ( $this->constraintValueValidators === [] ) {
+			throw new RuntimeException( "Missing a registered ConstraintValueValidator" );
+		}
+
+		// Any constraint violation by a ConstraintValueValidator registered will
+		// force an immediate halt without checking any other possible constraint
+		foreach ( $this->constraintValueValidators as $constraintValueValidator ) {
+			$constraintValueValidator->validate( $dataValue );
+
+			if ( $constraintValueValidator->hasConstraintViolation() ) {
+				$this->hasConstraintViolation = true;
+				break;
+			}
+		}
+	}
+
+}