GetRequestOptions is the query options (?opt=val) for GET requests: limit=10&offset=4& # pagination order_by=id&desc=true& # ordering filter_by=name&filter_value=John& # filtering total=true& # return total count (all available records under the filter, ignoring pagination) preload=Product&preload=Product.Manufacturer # preloading: loads nested models as well It is used in GetListHandler, GetByIDHandler and GetFieldHandler, to bind the query parameters in the GET request url.

CrudGroup is options to construct the router group.

GetPretreat list和get.

Pretreat 更新和新增.

QueryOption is a function that can be used to construct a query.