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<title>[BuddyPress][5676] trunk/bp-friends: Exclude existing group members and previously banned friends in group invites list.</title>
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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://buddypress.trac.wordpress.org/changeset/5676">5676</a></dd>
<dt>Author</dt> <dd>johnjamesjacoby</dd>
<dt>Date</dt> <dd>2012-02-07 00:19:43 +0000 (Tue, 07 Feb 2012)</dd>
</dl>

<h3>Log Message</h3>
<pre>Exclude existing group members and previously banned friends in group invites list. See <a href="http://buddypress.trac.wordpress.org/ticket/3969">#3969</a> (trunk)</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkbpfriendsbpfriendsclassesphp">trunk/bp-friends/bp-friends-classes.php</a></li>
<li><a href="#trunkbpfriendsbpfriendsfunctionsphp">trunk/bp-friends/bp-friends-functions.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkbpfriendsbpfriendsclassesphp"></a>
<div class="modfile"><h4>Modified: trunk/bp-friends/bp-friends-classes.php (5675 => 5676)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/bp-friends/bp-friends-classes.php        2012-02-06 20:25:42 UTC (rev 5675)
+++ trunk/bp-friends/bp-friends-classes.php        2012-02-07 00:19:43 UTC (rev 5676)
</span><span class="lines">@@ -294,19 +294,26 @@
</span><span class="cx">         }
</span><span class="cx"> 
</span><span class="cx">         function get_invitable_friend_count( $user_id, $group_id ) {
</span><del>-                global $wpdb, $bp;
</del><span class="cx"> 
</span><del>-                $friend_ids = BP_Friends_Friendship::get_friend_user_ids( $user_id );
</del><ins>+                // Setup some data we'll use below
+                $is_group_admin  = BP_Groups_Member::check_is_admin( $user_id, $group_id );
+                $friend_ids      = BP_Friends_Friendship::get_friend_user_ids( $user_id );
+                $invitable_count = 0;
</ins><span class="cx"> 
</span><del>-                $invitable_count = 0;
</del><span class="cx">                 for ( $i = 0, $count = count( $friend_ids ); $i &lt; $count; ++$i ) {
</span><span class="cx"> 
</span><del>-                        if ( BP_Groups_Member::check_is_member( (int)$friend_ids[$i], $group_id ) )
</del><ins>+                        // If already a member, they cannot be invited again
+                        if ( BP_Groups_Member::check_is_member( (int) $friend_ids[$i], $group_id ) )
</ins><span class="cx">                                 continue;
</span><span class="cx"> 
</span><del>-                        if ( BP_Groups_Member::check_has_invite( (int)$friend_ids[$i], $group_id )  )
</del><ins>+                        // If user already has invite, they cannot be added
+                        if ( BP_Groups_Member::check_has_invite( (int) $friend_ids[$i], $group_id )  )
</ins><span class="cx">                                 continue;
</span><span class="cx"> 
</span><ins>+                        // If user is not group admin and friend is banned, they cannot be invited
+                        if ( ( false === $is_group_admin ) &amp;&amp; BP_Groups_Member::check_is_banned( (int) $friend_ids[$i], $group_id ) )
+                                continue;
+
</ins><span class="cx">                         $invitable_count++;
</span><span class="cx">                 }
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkbpfriendsbpfriendsfunctionsphp"></a>
<div class="modfile"><h4>Modified: trunk/bp-friends/bp-friends-functions.php (5675 => 5676)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/bp-friends/bp-friends-functions.php        2012-02-06 20:25:42 UTC (rev 5675)
+++ trunk/bp-friends/bp-friends-functions.php        2012-02-07 00:19:43 UTC (rev 5676)
</span><span class="lines">@@ -209,25 +209,78 @@
</span><span class="cx">         return BP_Friends_Friendship::get_bulk_last_active( $friend_ids );
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-function friends_get_friends_invite_list( $user_id = 0 ) {
-        global $bp;
</del><ins>+/**
+ * Get a list of friends that a user can invite into this group.
+ * 
+ * Excludes friends that are already in the group, and banned friends if the
+ * user is not a group admin.
+ *
+ * @since 1.0
+ * @param int $user_id User ID whose friends to see can be invited
+ * @param int $group_id Group to check possible invitations against
+ * @return mixed False if no friends, array of users if friends
+ */
+function friends_get_friends_invite_list( $user_id = 0, $group_id = 0 ) {
</ins><span class="cx"> 
</span><del>-        if ( !$user_id )
</del><ins>+        // Default to logged in user id
+        if ( empty( $user_id ) )
</ins><span class="cx">                 $user_id = bp_loggedin_user_id();
</span><span class="cx"> 
</span><del>-        if ( bp_has_members( 'user_id=' . $user_id . '&amp;type=alphabetical&amp;per_page=0' ) ) {
-                while ( bp_members() ) : bp_the_member();
</del><ins>+        // Only group admins can invited previously banned users
+        $user_is_admin = (bool) groups_is_user_admin( $user_id, $group_id );
+
+        // Assume no friends
+        $friends = array();
+
+        // Default args
+        $args = apply_filters( 'bp_friends_pre_get_invite_list', array(
+                'user_id'  =&gt; $user_id,
+                'type'     =&gt; 'alphabetical',
+                'per_page' =&gt; 0
+        ) );
+
+        // User has friends
+        if ( bp_has_members( $args ) ) {
+
+                /**
+                 * Loop through all friends and try to add them to the invitation list.
+                 *
+                 * Exclude friends that:
+                 *     1. are already members of the group
+                 *     2. are banned from this group if the current user is also not a
+                 *        group admin.
+                 */
+                while ( bp_members() ) :
+
+                        // Load the member
+                        bp_the_member();
+
+                        // Get the user ID of the friend
+                        $friend_user_id = bp_get_member_user_id();
+
+                        // Skip friend if already in the group
+                        if ( groups_is_user_member( $friend_user_id, $group_id ) )
+                                continue;
+
+                        // Skip friend if not group admin and user banned from group
+                        if ( ( false === $user_is_admin ) &amp;&amp; groups_is_user_banned( $friend_user_id, $group_id ) )
+                                continue;
+
+                        // Friend is safe, so add it to the array of possible friends
</ins><span class="cx">                         $friends[] = array(
</span><del>-                                'id' =&gt; bp_get_member_user_id(),
</del><ins>+                                'id'        =&gt; $friend_user_id,
</ins><span class="cx">                                 'full_name' =&gt; bp_get_member_name()
</span><span class="cx">                         );
</span><ins>+
</ins><span class="cx">                 endwhile;
</span><span class="cx">         }
</span><span class="cx"> 
</span><del>-        if ( empty($friends) )
-                return false;
</del><ins>+        // If no friends, explicitly set to false
+        if ( empty( $friends ) )
+                $friends = false;
</ins><span class="cx"> 
</span><del>-        return $friends;
</del><ins>+        // Allow friends to be filtered
+        return apply_filters( 'bp_friends_get_invite_list', $friends, $user_id, $group_id );
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> function friends_count_invitable_friends( $user_id, $group_id ) {
</span></span></pre>
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