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mongox-go-driver/mongox/query/query.go

86 lines
1.3 KiB

package query
import (
"go.mongodb.org/mongo-driver/bson"
)
// Query is an enchanched bson.M map
type Query struct {
m bson.M
limiter Limiter
sorter Sorter
skipper Skipper
preloader Preloader
}
// And function pushes the elem query to the $and array of the query
func (q *Query) And(elem bson.M) (query *Query) {
if q.m == nil {
q.m = bson.M{}
}
queries, exists := q.m["$and"].(bson.A)
if !exists {
q.m["$and"] = bson.A{elem}
return q
}
q.m["$and"] = append(queries, elem)
return q
}
// Limiter returns limiter value or nil
func (q *Query) Limiter() (limit *int64) {
if q.limiter == nil {
return
}
return q.limiter.Limit()
}
// Sorter is a sort rule for a query
func (q *Query) Sorter() (sort interface{}) {
if q.sorter == nil {
return
}
return q.sorter.Sort()
}
// Skipper is a skipper for a query
func (q *Query) Skipper() (skip *int64) {
if q.skipper == nil {
return
}
return q.skipper.Skip()
}
// Preloader is a preloader list for a query
func (q *Query) Preloader() (ok bool, preloads []string) {
if q.preloader == nil {
return false, nil
}
preloads = q.preloader.Preload()
ok = len(preloads) > 0
return
}
// Empty checks the query for any content
func (q *Query) Empty() (isEmpty bool) {
return len(q.m) == 0
}
// M returns underlying query map
func (q *Query) M() (m bson.M) {
return q.m
}