From: tjhunt <tjhunt>
Date: Sat, 4 Jul 2009 14:22:11 +0000 (+0000)
Subject: Add a warning that require_capabiliy can only be used before output is started.
X-Git-Url: http://git.mjollnir.org/gw?a=commitdiff_plain;h=8a9c1c1c2d7da643dd8ea0f0ccb18a69aac55918;p=moodle.git

Add a warning that require_capabiliy can only be used before output is started.
---

diff --git a/lib/accesslib.php b/lib/accesslib.php
index afaf568e28..c4296104d4 100755
--- a/lib/accesslib.php
+++ b/lib/accesslib.php
@@ -1049,6 +1049,10 @@ function aggregate_roles_from_accessdata($context, $accessdata) {
  * This is an easy to use function, combining has_capability() with require_course_login().
  * And will call those where needed.
  *
+ * NOTE becuase this function calls require_login, and becuase require_login tries
+ * to initialise $PAGE->course, and the themes, you will get an exception if you
+ * try to call require_login after output has started, so don't do that.
+ *
  * It checks for a capability assertion being true.  If it isn't
  * then the page is terminated neatly with a standard error message.
  *