UserModel::merge PHP Метод

    public function merge($OldUserID, $NewUserID)
    {
        $OldUser = $this->getID($OldUserID, DATASET_TYPE_ARRAY);
        $NewUser = $this->getID($NewUserID, DATASET_TYPE_ARRAY);
        if (!$OldUser || !$NewUser) {
            throw new Gdn_UserException("Could not find one or both users to merge.");
        }
        $Map = ['UserID', 'Name', 'Email', 'CountVisits', 'CountDiscussions', 'CountComments'];
        $Result = ['MergeID' => null, 'Before' => ['OldUser' => arrayTranslate($OldUser, $Map), 'NewUser' => arrayTranslate($NewUser, $Map)]];
        // Start the merge.
        $MergeID = $this->mergeStart($OldUserID, $NewUserID);
        // Copy all discussions from the old user to the new user.
        $this->mergeCopy($MergeID, 'Discussion', 'InsertUserID', $OldUserID, $NewUserID);
        // Copy all the comments from the old user to the new user.
        $this->mergeCopy($MergeID, 'Comment', 'InsertUserID', $OldUserID, $NewUserID);
        // Update the last comment user ID.
        $this->SQL->put('Discussion', ['LastCommentUserID' => $NewUserID], ['LastCommentUserID' => $OldUserID]);
        // Clear the categories cache.
        CategoryModel::clearCache();
        // Copy all of the activities.
        $this->mergeCopy($MergeID, 'Activity', 'NotifyUserID', $OldUserID, $NewUserID);
        $this->mergeCopy($MergeID, 'Activity', 'InsertUserID', $OldUserID, $NewUserID);
        $this->mergeCopy($MergeID, 'Activity', 'ActivityUserID', $OldUserID, $NewUserID);
        // Copy all of the activity comments.
        $this->mergeCopy($MergeID, 'ActivityComment', 'InsertUserID', $OldUserID, $NewUserID);
        // Copy all conversations.
        $this->mergeCopy($MergeID, 'Conversation', 'InsertUserID', $OldUserID, $NewUserID);
        $this->mergeCopy($MergeID, 'ConversationMessage', 'InsertUserID', $OldUserID, $NewUserID, 'MessageID');
        $this->mergeCopy($MergeID, 'UserConversation', 'UserID', $OldUserID, $NewUserID, 'ConversationID');
        $this->EventArguments['MergeID'] = $MergeID;
        $this->EventArguments['OldUser'] = $OldUser;
        $this->EventArguments['NewUser'] = $NewUser;
        $this->fireEvent('Merge');
        $this->mergeFinish($MergeID);
        $OldUser = $this->getID($OldUserID, DATASET_TYPE_ARRAY);
        $NewUser = $this->getID($NewUserID, DATASET_TYPE_ARRAY);
        $Result['MergeID'] = $MergeID;
        $Result['After'] = ['OldUser' => arrayTranslate($OldUser, $Map), 'NewUser' => arrayTranslate($NewUser, $Map)];
        return $Result;
    }