Support model events

contracts/database/orm/events.go

@@ -0,0 +1,45 @@
+package orm
+
+type Retrieved interface {
+	Retrieved(Query) error
+}
+
+type Creating interface {
+	Creating(Query) error
+}
+
+type Created interface {
+	Created(Query) error
+}
+
+type Updating interface {
+	Updating(Query) error
+}
+
+type Updated interface {
+	Updated(Query) error
+}
+
+type Saving interface {
+	Saving(Query) error
+}
+
+type Saved interface {
+	Saved(Query) error
+}
+
+type Deleting interface {
+	Deleting(Query) error
+}
+
+type Deleted interface {
+	Deleted(Query) error
+}
+
+type ForceDeleting interface {
+	ForceDeleting(Query) error
+}
+
+type ForceDeleted interface {
+	ForceDeleted(Query) error
+}