fuck this reflection shit, i'm using codegen....

document.go

@@ -7,12 +7,13 @@ import (
 
 type Document struct {
 	// Created time. updated/added automatically.
-	Created time.Time `bson:"createdAt" json:"createdAt"`
+	Created time.Time `bson:"createdAt" json:"createdAt" tstype:"Date"`
 	// Modified time. updated/added automatically.
-	Modified time.Time `bson:"updatedAt" json:"updatedAt"`
+	Modified        time.Time       `bson:"updatedAt" json:"updatedAt" tstype:"Date"`
 	model           *Model          `bson:"-"`
 	exists          bool            `bson:"-"`
 	self            any             `bson:"-"`
+	populatedFields map[string]bool `bson:"-"`
 }
 type IDocument interface {
 	Append(field string, a ...interface{}) error
@@ -32,6 +33,8 @@ type IDocument interface {
 	serializeToStore() any
 	getModel() *Model
 	setModel(m Model)
+	markPopulated(field string)
+	markDepopulated(field string)
 }
 
 type SaveOptions struct {

document_internals.go

@@ -180,6 +180,7 @@ func doDelete(d *Document, arg interface{}) error {
 	_, err := c.DeleteOne(context.TODO(), bson.M{"_id": self.Id()})
 	if err == nil {
 		d.exists = false
+		err = gridFsDel(arg, *d.model)
 	}
 	return err
 }
@@ -221,9 +222,9 @@ func incrementTagged(item interface{}) interface{} {
 			} else {
 				cur.Set(reflect.ValueOf(incrementInterface(nid)))
 			}
-		}
 			counterColl := DB.Collection(COUNTER_COL)
 			counterColl.UpdateOne(context.TODO(), bson.M{"collection": incTag.Name}, bson.M{"$set": bson.M{"collection": incTag.Name, "current": cur.Interface()}}, options.UpdateOne().SetUpsert(true))
+		}
 
 	}
 	return rv.Elem().Interface()
@@ -265,3 +266,11 @@ func incrementAll(item interface{}) {
 	default:
 	}
 }
+
+func (d *Document) markPopulated(field string) {
+	d.populatedFields[field] = true
+}
+
+func (d *Document) markDepopulated(field string) {
+	d.populatedFields[field] = false
+}

gridfs.go

@@ -105,6 +105,82 @@ func gridFsLoad(val any, g gridFSReference, field string) any {
 	return doc.Interface()
 }
 
+func gridFsDel(val any, imodel Model) error {
+	var rerr error
+	v := reflect.ValueOf(val)
+	el := v
+	if v.Kind() == reflect.Pointer {
+		el = el.Elem()
+	}
+	switch el.Kind() {
+	case reflect.Struct:
+		for i := 0; i < el.NumField(); i++ {
+			ft := el.Type().Field(i)
+			fv := el.Field(i)
+			if !ft.IsExported() {
+				continue
+			}
+			_, err := structtag.Parse(string(ft.Tag))
+			panik(err)
+			var gfsRef *gridFSReference
+			for kk, vv := range imodel.gridFSReferences {
+				if strings.HasPrefix(kk, ft.Name) {
+					gfsRef = &vv
+					break
+				}
+			}
+			var inner = func(b *mongo.GridFSBucket, it reflect.Value) error {
+				filename := parseFmt(gfsRef.FilenameFmt, it.Interface())
+				contents := GridFSFile{}
+				curs, err2 := b.Find(context.TODO(), bson.M{"filename": filename})
+
+				if !errors.Is(err2, mongo.ErrNoDocuments) {
+					_ = curs.Decode(&contents)
+					if !reflect.ValueOf(contents).IsZero() {
+						return b.Delete(context.TODO(), contents.ID)
+					}
+				}
+				return nil
+			}
+			if gfsRef != nil {
+				b := bucket(*gfsRef)
+				if fv.Kind() == reflect.Slice {
+					for j := 0; j < fv.Len(); j++ {
+						lerr := inner(b, fv.Index(j))
+						if lerr != nil {
+							return lerr
+						}
+					}
+				} else if fv.Kind() == reflect.Struct {
+					lerr := inner(b, fv)
+					if lerr != nil {
+						return lerr
+					}
+				} else {
+					lerr := inner(b, el)
+					if lerr != nil {
+						return lerr
+					}
+				}
+			}
+			err = gridFsDel(fv.Interface(), imodel)
+			if err != nil {
+				return err
+			}
+		}
+	case reflect.Slice:
+		for i := 0; i < el.Len(); i++ {
+			rerr = gridFsDel(el.Index(i).Interface(), imodel)
+			if rerr != nil {
+				return rerr
+			}
+		}
+	default:
+		break
+	}
+	return rerr
+}
+
 func gridFsSave(val any, imodel Model) error {
 	var rerr error
 	v := reflect.ValueOf(val)

model.go

@@ -193,6 +193,11 @@ func (m *Model) FindOne(query interface{}, options *options.FindOneOptionsBuilde
 	return qq, err
 }
 
+func (m *Model) Count(query interface{}, options *options.CountOptionsBuilder) (int64, error) {
+	coll := m.getColl()
+	return coll.CountDocuments(context.TODO(), query, options)
+}
+
 func createBase(d any) (reflect.Value, int, string) {
 	var n string
 	var ri *Model

query.go

@@ -28,6 +28,8 @@ const (
 	OP_FIND       = "find"
 )
 
+var nilVal = reflect.Zero(reflect.TypeFor[any]())
+
 func populate(r Reference, rcoll string, rawDoc interface{}, d string, src interface{}) any {
 	rt := reflect.TypeOf(src)
 	rv := reflect.ValueOf(src)
@@ -399,7 +401,7 @@ func rerere(input interface{}, resType reflect.Type) interface{} {
 							fv.Set(reflect.ValueOf(tmp))
 						}
 					} else {
-						fv.Set(reflect.Zero(ft.Type))
+						fv.Set(reflect.ValueOf(nil))
 					}
 				}
 			}