Sort with parent resource

Sort with parent resource

[[!mFilter2?
    &cache=`1`
    &class=`modResource`
    &sortby=`{
        "modResource.menuindex":"ASC",
        "Parent.menuindex":"ASC"
    }`
    &leftJoin=`{
        "Parent": {
            "class": "modResource",
            "on": "modResource.parent = Parent.id"
        }
    }`
    &select=`{"Parent": "Parent.menuindex as parent_menuindex"}`
    &where = `{"template":"17"}`
    &includeTVs = `work_gallery`
    &tvPrefix = ``
    &disableSuggestions = `1`
    &filters = `tv|work_type:checkbox,
                tv|style:checkbox,
                tv|square:checkbox`
    &tpl = `portfolio_tpl`
    &tplOuter = `tpl.mFilter2.outer.portfolio`
    &tplFilter.outer.default = `tpl.mFilter2.filter.outer.portfolio`
    &tplFilter.row.tv|work_type = `tpl.mFilter2.filter.option.portfolio`
    &tplFilter.row.tv|style = `tpl.mFilter2.filter.option.portfolio`
    &tplFilter.row.tv|square = `tpl.mFilter2.filter.option.portfolio`
]]