--- og.pages.inc	Thu May 28 21:00:21 2009
+++ og.pages.inc	Sat May 30 11:44:00 2009
@@ -189,6 +189,10 @@
     '#title' => t('Email addresses or usernames'),  
     '#description' => t('Enter up to %max email addresses or usernames. Separate multiple addresses by commas or new lines. Each person will receive an invitation message from you.', array('%max' => $max))
   );
+  if (og_is_group_admin($node)) {
+    $form['mails']['#description'] .= t('<br />Existing users will be added silently, the rest will receive an invitation message from you and be added once they create an account.');
+  }  
+
   $form['pmessage'] = array(
     '#type' => 'textarea', 
     '#title' => t('Personal message'), 
@@ -214,6 +218,10 @@
   elseif (in_array($user->mail, $emails)) {
     form_set_error('mails', t('You may not invite yourself - @self.', array('@self' => $user->mail)));
   }
+  elseif (in_array($user->name, $emails)) {
+    form_set_error('mails', t('You may not invite yourself - @self.', array('@self' => $user->name)));
+  }
+
   else {
     $valid_emails = array();
     $bad = array();
@@ -253,18 +261,46 @@
     '@group' => $node->title,
     '@description' => $node->og_description,
     '@site' => variable_get('site_name', 'drupal'),
-    '!group_url' => url("og/subscribe/$node->nid", array('absolute' => TRUE)),
     '@body' => $form_state['values']['pmessage'],
   );
   
   global $user;
   $from = $user->mail;
+  $sentmails = 0;
   foreach ($emails as $mail) {
+    $variables['!group_url'] = url("og/subscribe/$node->nid", array('absolute' => TRUE));
+    if (og_is_group_admin($node)) {
+      $account = user_load(array('mail' => $mail));
+      if ($account && $account->mail) {
+        og_save_subscription($node->nid, $account->uid, array('is_active' => 1));        
+        drupal_set_message(t('@name was added to the group and no invitation was sent to them.', array('@name' => $account->name)));
+      }
+      else {
+        $sql = "SELECT COUNT(*) FROM {og_invite} WHERE mail = '%s' AND group_nid = %d";
+        $cnt = db_result(db_query($sql, $mail, $node->nid));
+        if ($cnt) {
+          drupal_set_message(t('@email was already on the invitation list for this group, but will be re-invited.', array('@email' => $mail)));
+        }
+        else {
+          $record = array('mail' => $mail, 'group_nid' => $node->nid);
+          $result = drupal_write_record('og_invite', $record);
+        }
+        $variables['!group_url'] = url('user/register', array('absolute' => TRUE));
+        drupal_mail('og', 'invite_user', $mail, $GLOBALS['language'], $variables, $from);
+        $sentmails ++;
+      }
+    }
+    else {
     drupal_mail('og', 'invite_user', $mail, $GLOBALS['language'], $variables, $from);
+      $sentmails ++;
+    }
+  }
+  if ($sentmails) {
+    drupal_set_message(format_plural($sentmails, '1 invitation sent.', '@count invitations sent.'));
   }
-  drupal_set_message(format_plural(count($emails), '1 invitation sent.', '@count invitations sent.'));
 }
 
+
 function og_subscribe($node, $uid = NULL) {
   global $user;
   if (is_null($uid)) {
@@ -384,6 +420,7 @@
     '#description' => t('Add one or more usernames in order to associate users with this group. Multiple usernames should be separated by a comma.'),
     '#element_validate' => array('og_add_users_og_names_validate'),
   );
+  $form['og_names']['#description'] .= '<br />' . t('If you wish to use emails in addition to usernames, <a href="@url">invite</a> will accept a mix of both.', array( '@url' => url('og/invite/'. $group_node->nid)));
   $form['op'] = array('#type' => 'submit', '#value' => t('Add users'));
   $form['gid'] = array('#type' => 'value', '#value' => $group_node->nid);
   return $form;
--- og.module	Tue Jun 09 07:42:46 2009
+++ og.module	Tue Jun 09 11:41:47 2009
@@ -1829,6 +1829,7 @@
         );
         return $form;
       }
+      break;
     case 'insert':
       if (isset($edit['og_register'])) {
         foreach (array_keys(array_filter($edit['og_register'])) as $gid) {
@@ -1838,6 +1839,16 @@
           }
         }  
       }
+      $sql = "SELECT group_nid FROM {og_invite} WHERE mail = '%s'";
+      $result = db_query($sql, $account->mail);
+      while ($group = db_fetch_array($result)) {
+        $gid = $group['group_nid'];
+        $groupnode = node_load($gid);
+        og_save_subscription($gid, $account->uid, array('is_active' => 1));
+        drupal_set_message(t('You are now a member of the %group.', array('%group' => $groupnode->title))); 
+      }
+      $sql = "DELETE FROM {og_invite} WHERE mail = '%s'";
+      $result = db_query($sql, $account->mail);
       break;
     case 'delete':
       $sql = 'DELETE FROM {og_uid} WHERE uid=%d';
@@ -2083,7 +2094,7 @@
     if ($subscription == 'active' || user_access('administer nodes')) {
       $links = module_invoke_all('og_create_links', $node);
       // We want to open this up for OG_INVITE_ONLY but we need to handle invitation workflow much better. See http://drupal.org/node/170332
-      if ($node->og_selective < OG_INVITE_ONLY) {
+      if ($node->og_selective < OG_INVITE_ONLY  || og_is_group_admin($node)) {
         $links['invite'] = l(t('Invite friend'), "og/invite/$node->nid");
       }
       $links['subscribers'] = $txt;
--- og.install	Fri May 15 13:28:02 2009
+++ og.install	Sat May 30 11:24:58 2009
@@ -143,6 +143,24 @@
     ),
     'primary key'       => array('nid', 'group_nid'),
   );
+  $schema['og_invite'] = array(
+    'description'     => 'Pending OG Invitations',
+    'fields'          => array(
+        'mail' => array(
+        'type' => 'varchar',
+        'length' => 64,
+        'not null' => TRUE,
+        'description' => "Invited email address.",
+      ),
+      'group_nid'       => array(
+        'description'     => "The group's {node}.nid.",
+        'type'            => 'int',
+        'size'            => 'normal',
+        'not null'        => TRUE,
+      ),
+    ),
+    'primary key'       => array('mail', 'group_nid'),
+  );
 
   return $schema;
 }
@@ -429,6 +447,31 @@
     og_ancestry_dedupe($ret);
   }
 
+  return $ret;
+}
+
+// Add og_invite table to store emails for inviting non-users to groups.
+function og_update_6204() {
+  $ret = array();
+  $schema['og_invite'] = array(
+    'description'     => 'Pending OG Invitations',
+    'fields'          => array(
+        'mail' => array(
+        'type' => 'varchar',
+        'length' => 64,
+        'not null' => TRUE,
+        'description' => "Invited email address.",
+      ),
+      'group_nid'       => array(
+        'description'     => "The group's {node}.nid.",
+        'type'            => 'int',
+        'size'            => 'normal',
+        'not null'        => TRUE,
+      ),
+    ),
+    'primary key'       => array('mail', 'group_nid'),
+  );
+  db_create_table($ret, 'og_invite', $schema['og_invite']);
   return $ret;
 }
 
