Ignore association with sql tag

field.go

@@ -14,6 +14,7 @@ type Field struct {
 	model             *Model
 	dbName            string
 	isBlank           bool
+	ignoreField       bool
 	isPrimaryKey      bool
 	autoCreateTime    bool
 	autoUpdateTime    bool
@@ -28,6 +29,14 @@ func (f *Field) parseBlank() {
 	f.isBlank = isBlank(f.reflectValue)
 }
 
+func (f *Field) parseIgnore() {
+	typ, _, _ := parseSqlTag(f.structField.Tag.Get(f.model.do.db.parent.tagIdentifier))
+
+	if typ == "-" {
+		f.ignoreField = true
+	}
+}
+
 func (f *Field) isScanner() bool {
 	_, is_scanner := reflect.New(f.reflectValue.Type()).Interface().(sql.Scanner)
 	return is_scanner

gorm_test.go

@@ -17,6 +17,10 @@ import (
 	"time"
 )
 
+type IgnoredEmbedStruct struct {
+	Name string
+}
+
 type User struct {
 	Id                 int64     // Id: Primary key
 	Birthday           time.Time // Time
@@ -26,6 +30,7 @@ type User struct {
 	UpdatedAt          time.Time          // UpdatedAt: Time of record is updated, will be updated automatically
 	DeletedAt          time.Time          // DeletedAt: Time of record is deleted, refer Soft Delete for more
 	Emails             []Email            // Embedded structs
+	IgnoredEmbedStruct IgnoredEmbedStruct `sql:"-"`
 	BillingAddress     Address            // Embedded struct
 	BillingAddressId   sql.NullInt64      // Embedded struct's foreign key
 	ShippingAddress    Address            // Embedded struct
@@ -1249,6 +1254,13 @@ func TestSubStruct(t *testing.T) {
 	db.Save(&comment3)
 }
 
+func TestIgnoreAssociation(t *testing.T) {
+	user := User{Name: "ignore", IgnoredEmbedStruct: IgnoredEmbedStruct{Name: "IgnoreMe"}}
+	if err := db.Save(&user).Error; err != nil {
+		t.Errorf("Should have no error with ignored association, but got ", err)
+	}
+}
+
 func TestRelated(t *testing.T) {
 	user := User{
 		Name:            "jinzhu",

model.go

@@ -102,6 +102,7 @@ func (m *Model) fields(operation string) (fields []*Field) {
 			field.Value = value.Interface()
 			field.parseAssociation()
 			field.parseBlank()
+			field.parseIgnore()
 			c <- &field
 		}(field_struct, c)
 	}
@@ -271,7 +272,7 @@ func (m *Model) setValueByColumn(name string, value interface{}, out interface{}
 
 func (m *Model) beforeAssociations() (fields []*Field) {
 	for _, field := range m.fields("null") {
-		if field.beforeAssociation && !field.isBlank {
+		if field.beforeAssociation && !field.isBlank && !field.ignoreField {
 			fields = append(fields, field)
 		}
 	}
@@ -280,7 +281,7 @@ func (m *Model) beforeAssociations() (fields []*Field) {
 
 func (m *Model) afterAssociations() (fields []*Field) {
 	for _, field := range m.fields("null") {
-		if field.afterAssociation && !field.isBlank {
+		if field.afterAssociation && !field.isBlank && !field.ignoreField {
 			fields = append(fields, field)
 		}
 	}