From: Bryan Tong Minh <btongminh@users.mediawiki.org>
Date: Fri, 29 Aug 2008 21:09:18 +0000 (+0000)
Subject: Add a function to require one and only one parameter of a list.
X-Git-Tag: 1.31.0-rc.0~45554
X-Git-Url: http://git.cyclocoop.org/%7B%24www_url%7Dadmin/compta/operations/?a=commitdiff_plain;h=145775132b543be423933a79a98ab96e27cc63f9;p=lhc%2Fweb%2Fwiklou.git

Add a function to require one and only one parameter of a list.
---

diff --git a/includes/api/ApiBase.php b/includes/api/ApiBase.php
index f926a2d575..42538226cc 100644
--- a/includes/api/ApiBase.php
+++ b/includes/api/ApiBase.php
@@ -365,6 +365,21 @@ abstract class ApiBase {
 		$paramSettings = $params[$paramName];
 		return $this->getParameterFromSettings($paramName, $paramSettings, $parseMaxLimit);
 	}
+	
+	/**
+	 * Die if none or more than one of a certain set of parameters is set
+	 */
+	public function requireOnlyOneParameter($params) {
+		$required = func_get_args();
+		array_shift($required);
+		
+		$intersection = array_intersect(array_keys($params), $required);
+		if (count($intersection) > 1) {
+			$this->dieUsage('The parameters '.implode(', ', $intersection).' can not be used together', 'invalidparammix');
+		} elseif (count($intersection) == 0) {
+			$this->dieUsage('One of the parameters '.implode(', ', $required).' is required', 'missingparam');
+		}
+	}
 
 	/**
 	 * Returns an array of the namespaces (by integer id) that exist on the