silverstripe / silverstripe-translatable

        $existingGroupID = $this->getTranslationGroup($originalID);

        // Remove any existing groups if overwrite flag is set

        if ($existingGroupID && $overwrite) {

            $sql = sprintf(

                'DELETE FROM "%s_translationgroups" WHERE "TranslationGroupID" = %d AND "OriginalID" = %d',

                $baseDataClass,

                $existingGroupID,

                $this->owner->ID

            );

            DB::query($sql);

            $existingGroupID = null;

        }

        // Add to group (only if not in existing group or $overwrite flag is set)

        if (!$existingGroupID) {

        }

        // Add to group (only if not in existing group or $overwrite flag is set)

        if (!$existingGroupID) {

            $sql = sprintf(

                'INSERT INTO "%s_translationgroups" ("TranslationGroupID","OriginalID") VALUES (%d,%d)',

                $baseDataClass,

                $originalID,

                $this->owner->ID

            );

            DB::query($sql);

        }

    }

    /**