1 files changed, 91 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/src/SQLStore/ChangeOp/FieldChangeOp.php b/www/wiki/extensions/SemanticMediaWiki/src/SQLStore/ChangeOp/FieldChangeOp.php
new file mode 100644
index 00000000..293138d9
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/src/SQLStore/ChangeOp/FieldChangeOp.php
@@ -0,0 +1,91 @@
+<?php
+
+namespace SMW\SQLStore\ChangeOp;
+
+use InvalidArgumentException;
+
+/**
+ * @license GNU GPL v2+
+ * @since 2.4
+ *
+ * @author mwjames
+ */
+class FieldChangeOp {
+
+	/**
+	 * @var array
+	 */
+	private $changeOp = [];
+
+	/**
+	 * @var string
+	 */
+	private $type;
+
+	/**
+	 * @since 2.4
+	 *
+	 * @param array $changeOp
+	 * @param string|null $type
+	 */
+	public function __construct( array $changeOp = [], $type = null ) {
+		$this->changeOp = $changeOp;
+		$this->type = $type;
+	}
+
+	/**
+	 * @since 2.4
+	 *
+	 * @param string $key
+	 * @param mixed $value
+	 */
+	public function set( $key, $value ) {
+		$this->changeOp[$key] = $value;
+	}
+
+	/**
+	 * @since 2.4
+	 *
+	 * @param string $key
+	 *
+	 * @return boolean
+	 */
+	public function has( $key ) {
+		return isset( $this->changeOp[$key] ) || array_key_exists( $key, $this->changeOp );
+	}
+
+	/**
+	 * @since 2.4
+	 *
+	 * @param string $key
+	 *
+	 * @return string
+	 * @throws InvalidArgumentException
+	 */
+	public function get( $key ) {
+
+		if ( $this->has( $key ) ) {
+			return $this->changeOp[$key];
+		}
+
+		throw new InvalidArgumentException( "{$key} is an unregistered field" );
+	}
+
+	/**
+	 * @since 2.4
+	 *
+	 * @return array
+	 */
+	public function getChangeOp() {
+		return $this->changeOp;
+	}
+
+	/**
+	 * @since 3.0
+	 */
+	public function __toString() {
+		return json_encode( [ $this->type => $this->changeOp ] );
+	}
+
+}
+