From 4b85aeb23812c8791bf357e21848df2a38bffe80 Mon Sep 17 00:00:00 2001
From: Kelly de Vries <kdv@me.com>
Date: Tue, 14 Jul 2015 10:36:39 -0700
Subject: [PATCH] add hidden lti user id to applicable pages

---
 .../candela-outcomes/candela-outcomes.php       | 17 +++++++++++++++++
 .../candela-utility/themes/candela/single.php   |  3 +++
 2 files changed, 20 insertions(+)

diff --git a/wp-content/plugins/candela-outcomes/candela-outcomes.php b/wp-content/plugins/candela-outcomes/candela-outcomes.php
index c5997662..3fb13d8c 100644
--- a/wp-content/plugins/candela-outcomes/candela-outcomes.php
+++ b/wp-content/plugins/candela-outcomes/candela-outcomes.php
@@ -83,6 +83,23 @@ function outcome_display_html($id){
     <?php
     }
 }
+
+//Display user lti html
+add_action('display_user_lti_id', '\Candela\Outcomes\display_user_id_html', 10, 1);
+
+function display_user_id_html( $user_id ) {
+    switch_to_blog(1);
+    $external_id = get_user_meta( $user_id, 'candelalti_external_userid', TRUE );
+    restore_current_blog();
+    if(!empty($external_id)){
+    ?>
+        <div id="lti_user_id" style='display:none'
+          data-user-id='<?php print $external_id; ?>'>
+        </div>
+    <?php
+    }
+}
+
 //Add Candela Outcomes to import meta
   add_filter( 'pb_import_metakeys', 'get_import_metakeys' );
 
diff --git a/wp-content/plugins/candela-utility/themes/candela/single.php b/wp-content/plugins/candela-utility/themes/candela/single.php
index dbdc640e..1388e58a 100644
--- a/wp-content/plugins/candela-utility/themes/candela/single.php
+++ b/wp-content/plugins/candela-utility/themes/candela/single.php
@@ -32,6 +32,9 @@
 				<!-- place hidden GUIDs on applicable pages -->
 				<?php do_action('display_outcome_html', $post->ID); ?>
 
+				<!-- place hidden user LTI id on applicable pages -->
+				<?php do_action('display_user_lti_id', $current_user->ID); ?>
+
 				<?php if ( $citation = CandelaCitation::renderCitation( $post->ID ) ): ?>
 					<section role="contentinfo">
 						<div class="post-citations sidebar">