filter

func Generate ¶

func Generate(s interface{}) (res bson.M, err error)

Generate generate mongo filter based on the input struct The struct may have sub-struct. Field used as filter must have tags with filtering options Eg: ```

type ExampleStruct struct {
	Toto  *int64    `mgo-filter:"toto,op:$eq,omitempty"`
	Titi  string   `mgo-filter:"titi,op:$gt"`
	Hello *[]string `mgo-filter:"hello,op:$in"`
}

``` The op is the filtering operation applied, When the omitempty option is set, the field will be ignored when nil or containing a zero value Field name should be in the form `fieldName` or `parentFieldName.fieldName` with any amount of subfield Note that using sub-structure won't change the resulting filter.

func RegisterStruct ¶

func RegisterStruct(s interface{})

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