paging

func GeneratePagination ¶

func GeneratePagination(s interface{}) (res options.FindOptions, err error)

GeneratePagination generate mongo option for pagination based on the input struct The struct should have root-level field with tags indicating the usage of the field and default value when applicable Eg: ```

type SimplemPagingStruct struct {
	Limit  *int64  `mgo-paging:"limit,default: 10"`
	Offset *int64  `mgo-paging:"offset"`
	Sort   *string `mgo-paging:"sort,default: _id"`
}

``` The `default` opt is the default value, used when the field is a nil pointer. The `limit`, `offset` and `sort` value define what the field is used for. The sort field value should contain the key used for sorting. You can add a `-` as prefix to revert the sorting order. Eg: `-_id`, `_id`, `myField`, `-myField`

func RegisterStruct ¶

func RegisterStruct(s interface{}) error

RegisterStruct register a struct in cache for quicker pagination generation when using the said struct